./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23f15893fb26009b2882a55698a2d895d2e3e404fcbd45ba17e1cf64b2b2b34e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 13:14:43,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:14:43,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:14:43,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:14:43,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:14:43,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:14:43,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:14:43,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:14:43,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:14:43,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:14:43,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:14:43,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:14:43,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:14:43,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:14:43,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:14:43,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:14:43,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:14:43,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:14:43,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:14:43,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:14:43,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:14:43,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:14:43,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:14:43,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:14:43,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:14:43,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:14:43,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:14:43,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:14:43,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:14:43,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:14:43,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:14:43,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:14:43,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:14:43,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:14:43,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:14:43,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:14:43,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:14:43,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:14:43,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:14:43,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:14:43,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:14:43,689 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:14:43,716 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:14:43,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:14:43,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:14:43,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:14:43,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:14:43,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:14:43,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:14:43,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:14:43,719 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:14:43,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:14:43,720 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:14:43,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:14:43,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:14:43,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:14:43,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:14:43,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:14:43,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:14:43,721 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:14:43,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:14:43,721 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:14:43,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:14:43,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:14:43,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:14:43,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:14:43,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:14:43,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:14:43,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:14:43,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:14:43,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:14:43,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:14:43,723 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:14:43,723 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:14:43,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:14:43,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:14:43,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f15893fb26009b2882a55698a2d895d2e3e404fcbd45ba17e1cf64b2b2b34e [2021-12-21 13:14:43,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:14:43,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:14:43,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:14:43,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:14:43,935 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:14:43,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2021-12-21 13:14:43,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/214ec6b86/479d3ee17a83446d98c4b80e98895222/FLAG51a32d854 [2021-12-21 13:14:44,291 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:14:44,291 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2021-12-21 13:14:44,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/214ec6b86/479d3ee17a83446d98c4b80e98895222/FLAG51a32d854 [2021-12-21 13:14:44,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/214ec6b86/479d3ee17a83446d98c4b80e98895222 [2021-12-21 13:14:44,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:14:44,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:14:44,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:14:44,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:14:44,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:14:44,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:14:44" (1/1) ... [2021-12-21 13:14:44,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@144f30bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:44, skipping insertion in model container [2021-12-21 13:14:44,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:14:44" (1/1) ... [2021-12-21 13:14:44,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:14:44,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:14:44,930 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c[17055,17068] [2021-12-21 13:14:44,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:14:44,942 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:14:44,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c[17055,17068] [2021-12-21 13:14:44,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:14:45,014 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:14:45,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:45 WrapperNode [2021-12-21 13:14:45,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:14:45,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:14:45,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:14:45,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:14:45,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:45" (1/1) ... [2021-12-21 13:14:45,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:45" (1/1) ... [2021-12-21 13:14:45,070 INFO L137 Inliner]: procedures = 55, calls = 153, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 245 [2021-12-21 13:14:45,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:14:45,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:14:45,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:14:45,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:14:45,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:45" (1/1) ... [2021-12-21 13:14:45,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:45" (1/1) ... [2021-12-21 13:14:45,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:45" (1/1) ... [2021-12-21 13:14:45,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:45" (1/1) ... [2021-12-21 13:14:45,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:45" (1/1) ... [2021-12-21 13:14:45,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:45" (1/1) ... [2021-12-21 13:14:45,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:45" (1/1) ... [2021-12-21 13:14:45,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:14:45,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:14:45,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:14:45,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:14:45,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:45" (1/1) ... [2021-12-21 13:14:45,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:14:45,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:14:45,118 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) [2021-12-21 13:14:45,120 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 [2021-12-21 13:14:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:14:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-21 13:14:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-21 13:14:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-21 13:14:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-21 13:14:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-21 13:14:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-21 13:14:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-21 13:14:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-21 13:14:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-21 13:14:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-21 13:14:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:14:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-21 13:14:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-21 13:14:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:14:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:14:45,207 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:14:45,209 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:14:45,424 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:14:45,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:14:45,429 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 13:14:45,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:14:45 BoogieIcfgContainer [2021-12-21 13:14:45,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:14:45,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:14:45,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:14:45,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:14:45,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:14:44" (1/3) ... [2021-12-21 13:14:45,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394c38f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:14:45, skipping insertion in model container [2021-12-21 13:14:45,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:45" (2/3) ... [2021-12-21 13:14:45,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394c38f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:14:45, skipping insertion in model container [2021-12-21 13:14:45,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:14:45" (3/3) ... [2021-12-21 13:14:45,435 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2021-12-21 13:14:45,438 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:14:45,438 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:14:45,465 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:14:45,469 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 [2021-12-21 13:14:45,469 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:14:45,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 64 states have (on average 1.390625) internal successors, (89), 70 states have internal predecessors, (89), 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) [2021-12-21 13:14:45,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-21 13:14:45,484 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:45,485 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] [2021-12-21 13:14:45,485 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:45,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:45,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1298361785, now seen corresponding path program 1 times [2021-12-21 13:14:45,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:45,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355505776] [2021-12-21 13:14:45,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:45,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:45,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 13:14:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:45,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:45,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:45,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355505776] [2021-12-21 13:14:45,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355505776] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:45,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:45,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 13:14:45,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333320172] [2021-12-21 13:14:45,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:45,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 13:14:45,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:45,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 13:14:45,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 13:14:45,700 INFO L87 Difference]: Start difference. First operand has 82 states, 64 states have (on average 1.390625) internal successors, (89), 70 states have internal predecessors, (89), 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), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:45,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:45,734 INFO L93 Difference]: Finished difference Result 155 states and 212 transitions. [2021-12-21 13:14:45,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 13:14:45,737 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), 2 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 [2021-12-21 13:14:45,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:45,747 INFO L225 Difference]: With dead ends: 155 [2021-12-21 13:14:45,747 INFO L226 Difference]: Without dead ends: 73 [2021-12-21 13:14:45,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 13:14:45,754 INFO L933 BasicCegarLoop]: 103 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, 103 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 [2021-12-21 13:14:45,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:45,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-12-21 13:14:45,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-12-21 13:14:45,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 62 states have internal predecessors, (75), 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) [2021-12-21 13:14:45,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 94 transitions. [2021-12-21 13:14:45,795 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 94 transitions. Word has length 25 [2021-12-21 13:14:45,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:45,796 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 94 transitions. [2021-12-21 13:14:45,796 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), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:45,797 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 94 transitions. [2021-12-21 13:14:45,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-21 13:14:45,799 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:45,799 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] [2021-12-21 13:14:45,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 13:14:45,800 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:45,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:45,803 INFO L85 PathProgramCache]: Analyzing trace with hash -544570962, now seen corresponding path program 1 times [2021-12-21 13:14:45,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:45,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856045767] [2021-12-21 13:14:45,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:45,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:45,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 13:14:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:45,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:45,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:45,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856045767] [2021-12-21 13:14:45,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856045767] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:45,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:45,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:14:45,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455479007] [2021-12-21 13:14:45,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:45,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:14:45,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:45,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:14:45,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:45,910 INFO L87 Difference]: Start difference. First operand 73 states and 94 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), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:45,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:45,926 INFO L93 Difference]: Finished difference Result 110 states and 142 transitions. [2021-12-21 13:14:45,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:14:45,927 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), 2 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 [2021-12-21 13:14:45,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:45,929 INFO L225 Difference]: With dead ends: 110 [2021-12-21 13:14:45,931 INFO L226 Difference]: Without dead ends: 64 [2021-12-21 13:14:45,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:45,935 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 13 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 145 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 [2021-12-21 13:14:45,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 145 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:45,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-21 13:14:45,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-12-21 13:14:45,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 56 states have internal predecessors, (68), 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) [2021-12-21 13:14:45,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2021-12-21 13:14:45,944 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 26 [2021-12-21 13:14:45,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:45,948 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2021-12-21 13:14:45,948 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), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:45,948 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2021-12-21 13:14:45,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-21 13:14:45,949 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:45,949 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] [2021-12-21 13:14:45,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 13:14:45,950 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:45,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:45,950 INFO L85 PathProgramCache]: Analyzing trace with hash -2042208755, now seen corresponding path program 1 times [2021-12-21 13:14:45,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:45,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471367425] [2021-12-21 13:14:45,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:45,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-21 13:14:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:46,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:46,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471367425] [2021-12-21 13:14:46,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471367425] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:46,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:46,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 13:14:46,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055143782] [2021-12-21 13:14:46,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:46,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 13:14:46,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:46,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 13:14:46,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 13:14:46,042 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-12-21 13:14:46,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:46,095 INFO L93 Difference]: Finished difference Result 120 states and 157 transitions. [2021-12-21 13:14:46,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 13:14:46,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 31 [2021-12-21 13:14:46,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:46,098 INFO L225 Difference]: With dead ends: 120 [2021-12-21 13:14:46,098 INFO L226 Difference]: Without dead ends: 64 [2021-12-21 13:14:46,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:14:46,101 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 109 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:46,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 191 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:46,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-21 13:14:46,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-12-21 13:14:46,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 56 states have internal predecessors, (67), 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) [2021-12-21 13:14:46,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2021-12-21 13:14:46,105 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 31 [2021-12-21 13:14:46,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:46,106 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2021-12-21 13:14:46,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-12-21 13:14:46,106 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2021-12-21 13:14:46,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-21 13:14:46,106 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:46,107 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] [2021-12-21 13:14:46,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 13:14:46,107 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:46,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:46,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1332459068, now seen corresponding path program 1 times [2021-12-21 13:14:46,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:46,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741415598] [2021-12-21 13:14:46,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:46,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-21 13:14:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 13:14:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:46,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:46,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741415598] [2021-12-21 13:14:46,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741415598] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:46,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:46,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:14:46,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289354122] [2021-12-21 13:14:46,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:46,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:14:46,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:46,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:14:46,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:46,141 INFO L87 Difference]: Start difference. First operand 64 states and 81 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-12-21 13:14:46,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:46,155 INFO L93 Difference]: Finished difference Result 161 states and 208 transitions. [2021-12-21 13:14:46,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:14:46,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 36 [2021-12-21 13:14:46,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:46,156 INFO L225 Difference]: With dead ends: 161 [2021-12-21 13:14:46,156 INFO L226 Difference]: Without dead ends: 105 [2021-12-21 13:14:46,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:46,157 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 53 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:46,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 147 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:46,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-12-21 13:14:46,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2021-12-21 13:14:46,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 81 states have (on average 1.308641975308642) internal successors, (106), 88 states have internal predecessors, (106), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2021-12-21 13:14:46,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 130 transitions. [2021-12-21 13:14:46,166 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 130 transitions. Word has length 36 [2021-12-21 13:14:46,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:46,166 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 130 transitions. [2021-12-21 13:14:46,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-12-21 13:14:46,167 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 130 transitions. [2021-12-21 13:14:46,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-21 13:14:46,168 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:46,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:46,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 13:14:46,168 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:46,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:46,168 INFO L85 PathProgramCache]: Analyzing trace with hash -491826932, now seen corresponding path program 1 times [2021-12-21 13:14:46,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:46,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489526117] [2021-12-21 13:14:46,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:46,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-21 13:14:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 13:14:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:46,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:46,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489526117] [2021-12-21 13:14:46,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489526117] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:46,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:46,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 13:14:46,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091873999] [2021-12-21 13:14:46,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:46,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 13:14:46,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:46,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 13:14:46,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 13:14:46,229 INFO L87 Difference]: Start difference. First operand 103 states and 130 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 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) [2021-12-21 13:14:46,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:46,265 INFO L93 Difference]: Finished difference Result 203 states and 260 transitions. [2021-12-21 13:14:46,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 13:14:46,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 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 42 [2021-12-21 13:14:46,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:46,267 INFO L225 Difference]: With dead ends: 203 [2021-12-21 13:14:46,267 INFO L226 Difference]: Without dead ends: 108 [2021-12-21 13:14:46,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:14:46,269 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 43 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:46,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 335 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:46,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-12-21 13:14:46,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 102. [2021-12-21 13:14:46,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.2875) internal successors, (103), 87 states have internal predecessors, (103), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2021-12-21 13:14:46,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions. [2021-12-21 13:14:46,279 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 42 [2021-12-21 13:14:46,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:46,279 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions. [2021-12-21 13:14:46,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 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) [2021-12-21 13:14:46,280 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions. [2021-12-21 13:14:46,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-21 13:14:46,281 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:46,281 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:46,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 13:14:46,281 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:46,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:46,282 INFO L85 PathProgramCache]: Analyzing trace with hash 552716463, now seen corresponding path program 1 times [2021-12-21 13:14:46,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:46,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408565642] [2021-12-21 13:14:46,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:46,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-21 13:14:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:14:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,327 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:14:46,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:46,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408565642] [2021-12-21 13:14:46,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408565642] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:46,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:46,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 13:14:46,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455811440] [2021-12-21 13:14:46,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:46,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 13:14:46,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:46,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 13:14:46,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 13:14:46,329 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 13:14:46,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:46,357 INFO L93 Difference]: Finished difference Result 220 states and 282 transitions. [2021-12-21 13:14:46,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 13:14:46,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 1 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 48 [2021-12-21 13:14:46,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:46,358 INFO L225 Difference]: With dead ends: 220 [2021-12-21 13:14:46,358 INFO L226 Difference]: Without dead ends: 126 [2021-12-21 13:14:46,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:14:46,361 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 33 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:46,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 355 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:46,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-12-21 13:14:46,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 105. [2021-12-21 13:14:46,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 90 states have internal predecessors, (106), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2021-12-21 13:14:46,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 130 transitions. [2021-12-21 13:14:46,383 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 130 transitions. Word has length 48 [2021-12-21 13:14:46,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:46,383 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 130 transitions. [2021-12-21 13:14:46,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 13:14:46,384 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 130 transitions. [2021-12-21 13:14:46,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-21 13:14:46,388 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:46,388 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:46,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 13:14:46,389 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:46,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:46,389 INFO L85 PathProgramCache]: Analyzing trace with hash 693265073, now seen corresponding path program 1 times [2021-12-21 13:14:46,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:46,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005337780] [2021-12-21 13:14:46,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:46,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-21 13:14:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:14:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,455 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:14:46,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:46,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005337780] [2021-12-21 13:14:46,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005337780] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:46,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:46,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 13:14:46,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951684445] [2021-12-21 13:14:46,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:46,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:14:46,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:46,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:14:46,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 13:14:46,457 INFO L87 Difference]: Start difference. First operand 105 states and 130 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 13:14:46,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:46,488 INFO L93 Difference]: Finished difference Result 229 states and 292 transitions. [2021-12-21 13:14:46,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 13:14:46,489 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (3), 1 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 48 [2021-12-21 13:14:46,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:46,490 INFO L225 Difference]: With dead ends: 229 [2021-12-21 13:14:46,490 INFO L226 Difference]: Without dead ends: 132 [2021-12-21 13:14:46,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-21 13:14:46,491 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 74 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:46,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 399 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:46,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-12-21 13:14:46,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 107. [2021-12-21 13:14:46,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 85 states have (on average 1.2705882352941176) internal successors, (108), 92 states have internal predecessors, (108), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2021-12-21 13:14:46,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions. [2021-12-21 13:14:46,497 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 48 [2021-12-21 13:14:46,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:46,497 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions. [2021-12-21 13:14:46,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 13:14:46,497 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions. [2021-12-21 13:14:46,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-21 13:14:46,498 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:46,498 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:46,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 13:14:46,498 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:46,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:46,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1678474189, now seen corresponding path program 1 times [2021-12-21 13:14:46,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:46,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179762845] [2021-12-21 13:14:46,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:46,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-21 13:14:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 13:14:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:14:46,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:46,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179762845] [2021-12-21 13:14:46,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179762845] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:46,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:46,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:14:46,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481465348] [2021-12-21 13:14:46,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:46,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:14:46,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:46,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:14:46,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:46,529 INFO L87 Difference]: Start difference. First operand 107 states and 132 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-12-21 13:14:46,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:46,541 INFO L93 Difference]: Finished difference Result 248 states and 310 transitions. [2021-12-21 13:14:46,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:14:46,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 48 [2021-12-21 13:14:46,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:46,545 INFO L225 Difference]: With dead ends: 248 [2021-12-21 13:14:46,549 INFO L226 Difference]: Without dead ends: 149 [2021-12-21 13:14:46,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:46,555 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 34 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:46,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 154 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:46,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-12-21 13:14:46,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2021-12-21 13:14:46,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 118 states have (on average 1.2457627118644068) internal successors, (147), 126 states have internal predecessors, (147), 16 states have call successors, (16), 15 states have call predecessors, (16), 14 states have return successors, (18), 15 states have call predecessors, (18), 16 states have call successors, (18) [2021-12-21 13:14:46,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 181 transitions. [2021-12-21 13:14:46,570 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 181 transitions. Word has length 48 [2021-12-21 13:14:46,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:46,570 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 181 transitions. [2021-12-21 13:14:46,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-12-21 13:14:46,570 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 181 transitions. [2021-12-21 13:14:46,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-21 13:14:46,571 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:46,571 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:46,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 13:14:46,571 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:46,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:46,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1903900979, now seen corresponding path program 1 times [2021-12-21 13:14:46,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:46,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856123100] [2021-12-21 13:14:46,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:46,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 13:14:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-21 13:14:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-21 13:14:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:14:46,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:46,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856123100] [2021-12-21 13:14:46,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856123100] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:46,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:46,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 13:14:46,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153044898] [2021-12-21 13:14:46,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:46,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 13:14:46,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:46,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 13:14:46,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 13:14:46,608 INFO L87 Difference]: Start difference. First operand 149 states and 181 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 13:14:46,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:46,691 INFO L93 Difference]: Finished difference Result 318 states and 401 transitions. [2021-12-21 13:14:46,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 13:14:46,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 52 [2021-12-21 13:14:46,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:46,693 INFO L225 Difference]: With dead ends: 318 [2021-12-21 13:14:46,693 INFO L226 Difference]: Without dead ends: 316 [2021-12-21 13:14:46,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 13:14:46,694 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 125 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:46,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 223 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:14:46,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-12-21 13:14:46,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 302. [2021-12-21 13:14:46,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 242 states have (on average 1.2479338842975207) internal successors, (302), 264 states have internal predecessors, (302), 34 states have call successors, (34), 22 states have call predecessors, (34), 25 states have return successors, (47), 31 states have call predecessors, (47), 34 states have call successors, (47) [2021-12-21 13:14:46,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 383 transitions. [2021-12-21 13:14:46,707 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 383 transitions. Word has length 52 [2021-12-21 13:14:46,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:46,707 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 383 transitions. [2021-12-21 13:14:46,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 13:14:46,708 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 383 transitions. [2021-12-21 13:14:46,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-21 13:14:46,709 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:46,709 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:46,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 13:14:46,709 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:46,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:46,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1105031866, now seen corresponding path program 1 times [2021-12-21 13:14:46,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:46,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586109114] [2021-12-21 13:14:46,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:46,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 13:14:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-21 13:14:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 13:14:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 13:14:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 13:14:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-21 13:14:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,843 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-21 13:14:46,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:46,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586109114] [2021-12-21 13:14:46,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586109114] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:14:46,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610092429] [2021-12-21 13:14:46,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:46,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:14:46,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:14:46,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 13:14:46,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 13:14:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:46,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-21 13:14:46,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:14:47,336 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-21 13:14:47,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 13:14:47,564 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-21 13:14:47,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610092429] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-21 13:14:47,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-21 13:14:47,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 5] total 13 [2021-12-21 13:14:47,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21516912] [2021-12-21 13:14:47,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:47,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:14:47,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:47,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:14:47,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:14:47,566 INFO L87 Difference]: Start difference. First operand 302 states and 383 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-21 13:14:47,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:47,635 INFO L93 Difference]: Finished difference Result 867 states and 1126 transitions. [2021-12-21 13:14:47,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 13:14:47,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 84 [2021-12-21 13:14:47,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:47,638 INFO L225 Difference]: With dead ends: 867 [2021-12-21 13:14:47,638 INFO L226 Difference]: Without dead ends: 573 [2021-12-21 13:14:47,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 173 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-12-21 13:14:47,639 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 46 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:47,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 384 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:47,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-12-21 13:14:47,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 477. [2021-12-21 13:14:47,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 378 states have (on average 1.2275132275132274) internal successors, (464), 413 states have internal predecessors, (464), 55 states have call successors, (55), 37 states have call predecessors, (55), 43 states have return successors, (77), 51 states have call predecessors, (77), 55 states have call successors, (77) [2021-12-21 13:14:47,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 596 transitions. [2021-12-21 13:14:47,659 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 596 transitions. Word has length 84 [2021-12-21 13:14:47,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:47,659 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 596 transitions. [2021-12-21 13:14:47,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-21 13:14:47,659 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 596 transitions. [2021-12-21 13:14:47,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-21 13:14:47,661 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:47,661 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:47,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 13:14:47,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-21 13:14:47,871 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:47,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:47,872 INFO L85 PathProgramCache]: Analyzing trace with hash -138549802, now seen corresponding path program 1 times [2021-12-21 13:14:47,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:47,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697628607] [2021-12-21 13:14:47,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:47,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:47,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 13:14:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:47,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 13:14:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:47,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 13:14:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:48,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 13:14:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:48,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 13:14:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:48,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-21 13:14:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:48,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 13:14:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:48,038 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-21 13:14:48,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:48,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697628607] [2021-12-21 13:14:48,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697628607] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:14:48,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535143596] [2021-12-21 13:14:48,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:48,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:14:48,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:14:48,043 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 13:14:48,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 13:14:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:48,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 13:14:48,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:14:48,284 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-21 13:14:48,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 13:14:48,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535143596] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:48,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 13:14:48,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 20 [2021-12-21 13:14:48,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242272331] [2021-12-21 13:14:48,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:48,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:14:48,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:48,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:14:48,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-12-21 13:14:48,286 INFO L87 Difference]: Start difference. First operand 477 states and 596 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-21 13:14:48,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:48,381 INFO L93 Difference]: Finished difference Result 962 states and 1218 transitions. [2021-12-21 13:14:48,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 13:14:48,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 88 [2021-12-21 13:14:48,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:48,384 INFO L225 Difference]: With dead ends: 962 [2021-12-21 13:14:48,384 INFO L226 Difference]: Without dead ends: 493 [2021-12-21 13:14:48,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2021-12-21 13:14:48,386 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 70 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:48,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 701 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:14:48,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2021-12-21 13:14:48,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 392. [2021-12-21 13:14:48,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 310 states have (on average 1.2161290322580645) internal successors, (377), 333 states have internal predecessors, (377), 44 states have call successors, (44), 34 states have call predecessors, (44), 37 states have return successors, (56), 42 states have call predecessors, (56), 44 states have call successors, (56) [2021-12-21 13:14:48,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 477 transitions. [2021-12-21 13:14:48,411 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 477 transitions. Word has length 88 [2021-12-21 13:14:48,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:48,412 INFO L470 AbstractCegarLoop]: Abstraction has 392 states and 477 transitions. [2021-12-21 13:14:48,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-21 13:14:48,412 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 477 transitions. [2021-12-21 13:14:48,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-21 13:14:48,415 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:48,416 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:48,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-21 13:14:48,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-21 13:14:48,630 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:48,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:48,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1845093653, now seen corresponding path program 1 times [2021-12-21 13:14:48,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:48,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651855816] [2021-12-21 13:14:48,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:48,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 13:14:48,678 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 13:14:48,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 13:14:48,718 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 13:14:48,718 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 13:14:48,719 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 13:14:48,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-21 13:14:48,723 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:48,725 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 13:14:48,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:14:48 BoogieIcfgContainer [2021-12-21 13:14:48,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 13:14:48,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 13:14:48,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 13:14:48,795 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 13:14:48,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:14:45" (3/4) ... [2021-12-21 13:14:48,797 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-21 13:14:48,879 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 13:14:48,879 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 13:14:48,880 INFO L158 Benchmark]: Toolchain (without parser) took 4176.79ms. Allocated memory was 104.9MB in the beginning and 127.9MB in the end (delta: 23.1MB). Free memory was 67.7MB in the beginning and 76.9MB in the end (delta: -9.2MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2021-12-21 13:14:48,880 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 13:14:48,880 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.36ms. Allocated memory is still 104.9MB. Free memory was 67.5MB in the beginning and 72.7MB in the end (delta: -5.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-21 13:14:48,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.34ms. Allocated memory is still 104.9MB. Free memory was 72.7MB in the beginning and 70.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 13:14:48,881 INFO L158 Benchmark]: Boogie Preprocessor took 18.13ms. Allocated memory is still 104.9MB. Free memory was 70.1MB in the beginning and 68.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 13:14:48,881 INFO L158 Benchmark]: RCFGBuilder took 339.37ms. Allocated memory is still 104.9MB. Free memory was 68.6MB in the beginning and 52.8MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-21 13:14:48,881 INFO L158 Benchmark]: TraceAbstraction took 3363.04ms. Allocated memory was 104.9MB in the beginning and 127.9MB in the end (delta: 23.1MB). Free memory was 52.4MB in the beginning and 87.4MB in the end (delta: -34.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 13:14:48,882 INFO L158 Benchmark]: Witness Printer took 84.63ms. Allocated memory is still 127.9MB. Free memory was 87.4MB in the beginning and 76.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 13:14:48,883 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.36ms. Allocated memory is still 104.9MB. Free memory was 67.5MB in the beginning and 72.7MB in the end (delta: -5.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.34ms. Allocated memory is still 104.9MB. Free memory was 72.7MB in the beginning and 70.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.13ms. Allocated memory is still 104.9MB. Free memory was 70.1MB in the beginning and 68.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 339.37ms. Allocated memory is still 104.9MB. Free memory was 68.6MB in the beginning and 52.8MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3363.04ms. Allocated memory was 104.9MB in the beginning and 127.9MB in the end (delta: 23.1MB). Free memory was 52.4MB in the beginning and 87.4MB in the end (delta: -34.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 84.63ms. Allocated memory is still 127.9MB. Free memory was 87.4MB in the beginning and 76.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * 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: 854]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L496] int pumpRunning = 0; [L497] int systemActive = 1; [L676] int methAndRunningLastTime ; [L753] int cleanupTimeShifts = 4; [L860] int waterLevel = 1; [L861] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] int retValue_acc ; [L828] int tmp ; [L832] FCALL select_helpers() [L833] FCALL select_features() [L834] CALL, EXPR valid_product() [L744] int retValue_acc ; [L747] retValue_acc = 1 [L748] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L834] RET, EXPR valid_product() [L834] tmp = valid_product() [L836] COND TRUE \read(tmp) [L838] FCALL setup() [L839] CALL runTest() [L820] CALL __utac_acc__Specification2_spec__1() [L681] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L820] RET __utac_acc__Specification2_spec__1() [L821] CALL test() [L422] int splverifierCounter ; [L423] int tmp ; [L424] int tmp___0 ; [L425] int tmp___1 ; [L426] int tmp___2 ; [L429] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L433] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L439] tmp = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L443] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L878] COND TRUE waterLevel < 2 [L879] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L443] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L463] CALL startSystem() [L670] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L463] RET startSystem() [L476] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L504] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L511] COND TRUE \read(systemActive) [L513] CALL processEnvironment() [L533] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L536] COND TRUE ! pumpRunning [L538] CALL, EXPR isHighWaterLevel() [L648] int retValue_acc ; [L649] int tmp ; [L650] int tmp___0 ; [L654] CALL, EXPR isHighWaterSensorDry() [L940] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L943] COND FALSE !(waterLevel < 2) [L947] retValue_acc = 0 [L948] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L654] RET, EXPR isHighWaterSensorDry() [L654] tmp = isHighWaterSensorDry() [L656] COND FALSE !(\read(tmp)) [L659] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L661] retValue_acc = tmp___0 [L662] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L538] RET, EXPR isHighWaterLevel() [L538] tmp = isHighWaterLevel() [L540] COND TRUE \read(tmp) [L542] CALL activatePump() [L567] int tmp ; [L571] CALL, EXPR isMethaneAlarm() [L592] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L596] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] retValue_acc = isMethaneLevelCritical() [L598] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L571] RET, EXPR isMethaneAlarm() [L571] tmp = isMethaneAlarm() [L573] COND FALSE !(\read(tmp)) [L577] CALL activatePump__wrappee__highWaterSensor() [L561] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L577] RET activatePump__wrappee__highWaterSensor() [L542] RET activatePump() [L513] RET processEnvironment() [L519] CALL __utac_acc__Specification2_spec__2() [L686] int tmp ; [L687] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L691] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L691] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L691] tmp = isMethaneLevelCritical() [L693] COND FALSE !(\read(tmp)) [L709] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L519] RET __utac_acc__Specification2_spec__2() [L476] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L433] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L439] tmp = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=2] [L453] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L890] COND FALSE !(\read(methaneLevelCritical)) [L893] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L453] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=2] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L463] CALL startSystem() [L670] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L463] RET startSystem() [L476] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L504] COND TRUE \read(pumpRunning) [L506] CALL lowerWaterLevel() [L866] COND TRUE waterLevel > 0 [L867] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L506] RET lowerWaterLevel() [L511] COND TRUE \read(systemActive) [L513] CALL processEnvironment() [L533] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L536] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L551] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L513] RET processEnvironment() [L519] CALL __utac_acc__Specification2_spec__2() [L686] int tmp ; [L687] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L691] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L691] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L691] tmp = isMethaneLevelCritical() [L693] COND TRUE \read(tmp) [L695] CALL, EXPR isPumpRunning() [L603] int retValue_acc ; [L606] retValue_acc = pumpRunning [L607] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L695] RET, EXPR isPumpRunning() [L695] tmp___0 = isPumpRunning() [L697] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L698] COND FALSE !(\read(methAndRunningLastTime)) [L703] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L519] RET __utac_acc__Specification2_spec__2() [L476] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=1] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=1] [L433] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=1] [L439] tmp = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=1] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L463] CALL startSystem() [L670] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L463] RET startSystem() [L476] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L504] COND TRUE \read(pumpRunning) [L506] CALL lowerWaterLevel() [L866] COND TRUE waterLevel > 0 [L867] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L506] RET lowerWaterLevel() [L511] COND TRUE \read(systemActive) [L513] CALL processEnvironment() [L533] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L536] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L551] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L513] RET processEnvironment() [L519] CALL __utac_acc__Specification2_spec__2() [L686] int tmp ; [L687] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L691] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L691] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L691] tmp = isMethaneLevelCritical() [L693] COND TRUE \read(tmp) [L695] CALL, EXPR isPumpRunning() [L603] int retValue_acc ; [L606] retValue_acc = pumpRunning [L607] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L695] RET, EXPR isPumpRunning() [L695] tmp___0 = isPumpRunning() [L697] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L698] COND TRUE \read(methAndRunningLastTime) [L700] CALL __automaton_fail() [L854] reach_error() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 618 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 600 mSDsluCounter, 3137 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2084 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 285 IncrementalHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 1053 mSDtfsCounter, 285 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 388 GetRequests, 323 SyntacticMatches, 6 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=477occurred in iteration=10, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 265 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 770 ConstructedInterpolants, 0 QuantifiedInterpolants, 2040 SizeOfPredicates, 6 NumberOfNonLiveVariables, 904 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 152/162 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! [2021-12-21 13:14:48,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE