./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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_product39.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 faabc130c8aadbb7390121b68f1c41e161e50da9443e348cb1c3db1c45e9e0cb --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:07:33,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:07:33,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:07:33,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:07:33,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:07:33,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:07:33,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:07:33,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:07:33,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:07:33,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:07:33,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:07:33,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:07:33,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:07:33,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:07:33,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:07:33,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:07:33,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:07:33,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:07:33,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:07:33,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:07:33,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:07:33,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:07:33,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:07:33,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:07:33,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:07:33,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:07:33,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:07:33,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:07:33,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:07:33,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:07:33,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:07:33,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:07:33,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:07:33,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:07:33,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:07:33,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:07:33,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:07:33,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:07:33,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:07:33,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:07:33,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:07:33,753 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:07:33,786 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:07:33,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:07:33,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:07:33,788 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:07:33,789 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:07:33,789 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:07:33,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:07:33,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:07:33,790 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:07:33,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:07:33,791 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:07:33,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:07:33,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:07:33,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:07:33,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:07:33,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:07:33,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:07:33,792 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:07:33,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:07:33,792 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:07:33,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:07:33,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:07:33,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:07:33,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:07:33,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:07:33,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:07:33,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:07:33,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:07:33,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:07:33,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:07:33,794 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:07:33,794 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:07:33,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:07:33,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:07:33,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faabc130c8aadbb7390121b68f1c41e161e50da9443e348cb1c3db1c45e9e0cb [2021-12-17 15:07:34,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:07:34,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:07:34,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:07:34,061 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:07:34,062 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:07:34,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2021-12-17 15:07:34,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/006914abc/4479a8ceed044f68950e523d6d40844c/FLAGee752c5b0 [2021-12-17 15:07:34,544 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:07:34,545 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2021-12-17 15:07:34,554 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/006914abc/4479a8ceed044f68950e523d6d40844c/FLAGee752c5b0 [2021-12-17 15:07:34,563 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/006914abc/4479a8ceed044f68950e523d6d40844c [2021-12-17 15:07:34,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:07:34,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:07:34,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:07:34,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:07:34,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:07:34,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:07:34" (1/1) ... [2021-12-17 15:07:34,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2da9e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:34, skipping insertion in model container [2021-12-17 15:07:34,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:07:34" (1/1) ... [2021-12-17 15:07:34,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:07:34,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:07:34,743 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_product39.cil.c[5087,5100] [2021-12-17 15:07:34,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:07:34,840 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:07:34,855 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_product39.cil.c[5087,5100] [2021-12-17 15:07:34,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:07:34,890 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:07:34,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:34 WrapperNode [2021-12-17 15:07:34,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:07:34,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:07:34,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:07:34,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:07:34,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:34" (1/1) ... [2021-12-17 15:07:34,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:34" (1/1) ... [2021-12-17 15:07:34,933 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 250 [2021-12-17 15:07:34,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:07:34,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:07:34,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:07:34,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:07:34,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:34" (1/1) ... [2021-12-17 15:07:34,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:34" (1/1) ... [2021-12-17 15:07:34,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:34" (1/1) ... [2021-12-17 15:07:34,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:34" (1/1) ... [2021-12-17 15:07:34,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:34" (1/1) ... [2021-12-17 15:07:34,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:34" (1/1) ... [2021-12-17 15:07:34,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:34" (1/1) ... [2021-12-17 15:07:34,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:07:34,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:07:34,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:07:34,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:07:34,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:34" (1/1) ... [2021-12-17 15:07:34,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:07:34,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:07:35,009 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) [2021-12-17 15:07:35,013 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 [2021-12-17 15:07:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:07:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-17 15:07:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-17 15:07:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-17 15:07:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-17 15:07:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-17 15:07:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-17 15:07:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-17 15:07:35,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-17 15:07:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:07:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:07:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-17 15:07:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-17 15:07:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-17 15:07:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-17 15:07:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:07:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-17 15:07:35,041 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-17 15:07:35,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:07:35,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:07:35,119 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:07:35,120 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:07:35,393 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:07:35,398 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:07:35,398 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 15:07:35,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:07:35 BoogieIcfgContainer [2021-12-17 15:07:35,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:07:35,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:07:35,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:07:35,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:07:35,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:07:34" (1/3) ... [2021-12-17 15:07:35,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604f7394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:07:35, skipping insertion in model container [2021-12-17 15:07:35,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:34" (2/3) ... [2021-12-17 15:07:35,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604f7394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:07:35, skipping insertion in model container [2021-12-17 15:07:35,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:07:35" (3/3) ... [2021-12-17 15:07:35,406 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product39.cil.c [2021-12-17 15:07:35,409 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:07:35,409 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:07:35,453 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:07:35,462 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 [2021-12-17 15:07:35,462 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:07:35,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 79 states have internal predecessors, (97), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-12-17 15:07:35,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-17 15:07:35,485 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:35,485 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] [2021-12-17 15:07:35,486 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:35,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:35,489 INFO L85 PathProgramCache]: Analyzing trace with hash 238573202, now seen corresponding path program 1 times [2021-12-17 15:07:35,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:35,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338650146] [2021-12-17 15:07:35,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:35,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:35,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-17 15:07:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:35,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:35,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:35,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338650146] [2021-12-17 15:07:35,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338650146] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:35,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:35,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:07:35,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39528396] [2021-12-17 15:07:35,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:35,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:07:35,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:35,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:07:35,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:07:35,718 INFO L87 Difference]: Start difference. First operand has 94 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 79 states have internal predecessors, (97), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) 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) [2021-12-17 15:07:35,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:35,757 INFO L93 Difference]: Finished difference Result 179 states and 244 transitions. [2021-12-17 15:07:35,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:07:35,759 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 [2021-12-17 15:07:35,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:35,766 INFO L225 Difference]: With dead ends: 179 [2021-12-17 15:07:35,767 INFO L226 Difference]: Without dead ends: 85 [2021-12-17 15:07:35,770 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 [2021-12-17 15:07:35,773 INFO L933 BasicCegarLoop]: 119 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, 119 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 [2021-12-17 15:07:35,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:07:35,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-12-17 15:07:35,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-12-17 15:07:35,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 71 states have internal predecessors, (83), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-17 15:07:35,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2021-12-17 15:07:35,826 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 25 [2021-12-17 15:07:35,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:35,826 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2021-12-17 15:07:35,827 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) [2021-12-17 15:07:35,827 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2021-12-17 15:07:35,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-17 15:07:35,830 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:35,831 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] [2021-12-17 15:07:35,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 15:07:35,831 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:35,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:35,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1313382680, now seen corresponding path program 1 times [2021-12-17 15:07:35,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:35,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334715384] [2021-12-17 15:07:35,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:35,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:35,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-17 15:07:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:35,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:35,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:35,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334715384] [2021-12-17 15:07:35,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334715384] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:35,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:35,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:07:35,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677293883] [2021-12-17 15:07:35,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:35,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:07:35,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:35,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:07:35,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:07:35,922 INFO L87 Difference]: Start difference. First operand 85 states and 110 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) [2021-12-17 15:07:35,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:35,943 INFO L93 Difference]: Finished difference Result 131 states and 169 transitions. [2021-12-17 15:07:35,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:07:35,944 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 [2021-12-17 15:07:35,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:35,945 INFO L225 Difference]: With dead ends: 131 [2021-12-17 15:07:35,945 INFO L226 Difference]: Without dead ends: 76 [2021-12-17 15:07:35,945 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 [2021-12-17 15:07:35,946 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 16 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 173 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 [2021-12-17 15:07:35,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 173 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:07:35,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-12-17 15:07:35,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-12-17 15:07:35,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 65 states have internal predecessors, (76), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-17 15:07:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2021-12-17 15:07:35,954 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 26 [2021-12-17 15:07:35,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:35,954 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2021-12-17 15:07:35,954 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) [2021-12-17 15:07:35,955 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2021-12-17 15:07:35,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-17 15:07:35,956 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:35,957 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] [2021-12-17 15:07:35,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 15:07:35,957 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:35,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:35,961 INFO L85 PathProgramCache]: Analyzing trace with hash 418656316, now seen corresponding path program 1 times [2021-12-17 15:07:35,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:35,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805666782] [2021-12-17 15:07:35,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:35,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:36,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-17 15:07:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:36,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:36,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:36,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805666782] [2021-12-17 15:07:36,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805666782] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:36,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:36,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:07:36,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559959703] [2021-12-17 15:07:36,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:36,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:07:36,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:36,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:07:36,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:07:36,010 INFO L87 Difference]: Start difference. First operand 76 states and 98 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:07:36,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:36,038 INFO L93 Difference]: Finished difference Result 211 states and 278 transitions. [2021-12-17 15:07:36,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:07:36,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-17 15:07:36,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:36,040 INFO L225 Difference]: With dead ends: 211 [2021-12-17 15:07:36,041 INFO L226 Difference]: Without dead ends: 143 [2021-12-17 15:07:36,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:07:36,044 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 77 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:36,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 208 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:07:36,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-12-17 15:07:36,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 140. [2021-12-17 15:07:36,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 103 states have (on average 1.3592233009708738) internal successors, (140), 118 states have internal predecessors, (140), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 15 states have call predecessors, (22), 22 states have call successors, (22) [2021-12-17 15:07:36,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 184 transitions. [2021-12-17 15:07:36,064 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 184 transitions. Word has length 30 [2021-12-17 15:07:36,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:36,067 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 184 transitions. [2021-12-17 15:07:36,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:07:36,068 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 184 transitions. [2021-12-17 15:07:36,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-17 15:07:36,071 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:36,071 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] [2021-12-17 15:07:36,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 15:07:36,072 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:36,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:36,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1768755130, now seen corresponding path program 1 times [2021-12-17 15:07:36,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:36,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620118490] [2021-12-17 15:07:36,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:36,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:36,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:07:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:36,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:36,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620118490] [2021-12-17 15:07:36,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620118490] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:36,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:36,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:07:36,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118554848] [2021-12-17 15:07:36,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:36,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:07:36,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:36,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:07:36,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:07:36,151 INFO L87 Difference]: Start difference. First operand 140 states and 184 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 1 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) [2021-12-17 15:07:36,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:36,281 INFO L93 Difference]: Finished difference Result 402 states and 537 transitions. [2021-12-17 15:07:36,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 15:07:36,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 1 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 34 [2021-12-17 15:07:36,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:36,284 INFO L225 Difference]: With dead ends: 402 [2021-12-17 15:07:36,284 INFO L226 Difference]: Without dead ends: 270 [2021-12-17 15:07:36,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:07:36,286 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 66 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:36,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 478 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:07:36,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-12-17 15:07:36,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 264. [2021-12-17 15:07:36,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 191 states have (on average 1.3455497382198953) internal successors, (257), 220 states have internal predecessors, (257), 44 states have call successors, (44), 28 states have call predecessors, (44), 28 states have return successors, (46), 30 states have call predecessors, (46), 44 states have call successors, (46) [2021-12-17 15:07:36,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 347 transitions. [2021-12-17 15:07:36,334 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 347 transitions. Word has length 34 [2021-12-17 15:07:36,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:36,335 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 347 transitions. [2021-12-17 15:07:36,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 1 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) [2021-12-17 15:07:36,336 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 347 transitions. [2021-12-17 15:07:36,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-17 15:07:36,341 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:36,341 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] [2021-12-17 15:07:36,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 15:07:36,342 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:36,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:36,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1795843330, now seen corresponding path program 1 times [2021-12-17 15:07:36,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:36,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940032868] [2021-12-17 15:07:36,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:36,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:36,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-17 15:07:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:36,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 15:07:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:36,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:36,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:36,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940032868] [2021-12-17 15:07:36,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940032868] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:36,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:36,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:07:36,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492401075] [2021-12-17 15:07:36,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:36,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:07:36,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:36,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:07:36,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:07:36,416 INFO L87 Difference]: Start difference. First operand 264 states and 347 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:07:36,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:36,644 INFO L93 Difference]: Finished difference Result 692 states and 928 transitions. [2021-12-17 15:07:36,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 15:07:36,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (3), 3 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 38 [2021-12-17 15:07:36,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:36,650 INFO L225 Difference]: With dead ends: 692 [2021-12-17 15:07:36,650 INFO L226 Difference]: Without dead ends: 436 [2021-12-17 15:07:36,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:07:36,653 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 111 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:36,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 241 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:07:36,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2021-12-17 15:07:36,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 422. [2021-12-17 15:07:36,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 309 states have (on average 1.2977346278317152) internal successors, (401), 338 states have internal predecessors, (401), 60 states have call successors, (60), 52 states have call predecessors, (60), 52 states have return successors, (80), 54 states have call predecessors, (80), 60 states have call successors, (80) [2021-12-17 15:07:36,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 541 transitions. [2021-12-17 15:07:36,685 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 541 transitions. Word has length 38 [2021-12-17 15:07:36,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:36,685 INFO L470 AbstractCegarLoop]: Abstraction has 422 states and 541 transitions. [2021-12-17 15:07:36,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:07:36,685 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 541 transitions. [2021-12-17 15:07:36,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-17 15:07:36,687 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:36,687 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, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:36,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 15:07:36,687 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:36,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:36,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1327873931, now seen corresponding path program 1 times [2021-12-17 15:07:36,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:36,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608181850] [2021-12-17 15:07:36,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:36,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:36,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-17 15:07:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:36,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:07:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:36,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 15:07:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:36,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:36,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:36,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608181850] [2021-12-17 15:07:36,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608181850] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:36,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:36,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:07:36,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591797912] [2021-12-17 15:07:36,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:36,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:07:36,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:36,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:07:36,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:07:36,763 INFO L87 Difference]: Start difference. First operand 422 states and 541 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:07:36,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:36,992 INFO L93 Difference]: Finished difference Result 944 states and 1225 transitions. [2021-12-17 15:07:36,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:07:36,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2021-12-17 15:07:36,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:36,996 INFO L225 Difference]: With dead ends: 944 [2021-12-17 15:07:36,996 INFO L226 Difference]: Without dead ends: 530 [2021-12-17 15:07:36,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:07:36,998 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 119 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:36,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 252 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:07:36,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2021-12-17 15:07:37,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 516. [2021-12-17 15:07:37,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 383 states have (on average 1.2610966057441253) internal successors, (483), 412 states have internal predecessors, (483), 68 states have call successors, (68), 52 states have call predecessors, (68), 64 states have return successors, (100), 70 states have call predecessors, (100), 68 states have call successors, (100) [2021-12-17 15:07:37,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 651 transitions. [2021-12-17 15:07:37,039 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 651 transitions. Word has length 48 [2021-12-17 15:07:37,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:37,039 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 651 transitions. [2021-12-17 15:07:37,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:07:37,039 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 651 transitions. [2021-12-17 15:07:37,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-17 15:07:37,041 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:37,041 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, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:37,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 15:07:37,041 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:37,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:37,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1278149623, now seen corresponding path program 1 times [2021-12-17 15:07:37,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:37,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421956977] [2021-12-17 15:07:37,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:37,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:37,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-17 15:07:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:37,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:07:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:37,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 15:07:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:37,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:37,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:37,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421956977] [2021-12-17 15:07:37,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421956977] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:37,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:37,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:07:37,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734918360] [2021-12-17 15:07:37,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:37,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:07:37,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:37,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:07:37,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:07:37,120 INFO L87 Difference]: Start difference. First operand 516 states and 651 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 15:07:37,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:37,455 INFO L93 Difference]: Finished difference Result 1078 states and 1397 transitions. [2021-12-17 15:07:37,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 15:07:37,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2021-12-17 15:07:37,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:37,458 INFO L225 Difference]: With dead ends: 1078 [2021-12-17 15:07:37,458 INFO L226 Difference]: Without dead ends: 570 [2021-12-17 15:07:37,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-12-17 15:07:37,460 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 304 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:37,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 287 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:07:37,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2021-12-17 15:07:37,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 524. [2021-12-17 15:07:37,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 391 states have (on average 1.2557544757033248) internal successors, (491), 420 states have internal predecessors, (491), 68 states have call successors, (68), 52 states have call predecessors, (68), 64 states have return successors, (100), 70 states have call predecessors, (100), 68 states have call successors, (100) [2021-12-17 15:07:37,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 659 transitions. [2021-12-17 15:07:37,490 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 659 transitions. Word has length 48 [2021-12-17 15:07:37,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:37,491 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 659 transitions. [2021-12-17 15:07:37,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 15:07:37,492 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 659 transitions. [2021-12-17 15:07:37,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-17 15:07:37,494 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:37,494 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, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:37,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 15:07:37,494 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:37,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:37,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1700851449, now seen corresponding path program 1 times [2021-12-17 15:07:37,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:37,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167057949] [2021-12-17 15:07:37,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:37,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:37,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-17 15:07:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:37,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:07:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:37,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 15:07:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:37,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:37,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:37,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167057949] [2021-12-17 15:07:37,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167057949] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:37,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:37,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:07:37,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497478936] [2021-12-17 15:07:37,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:37,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:07:37,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:37,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:07:37,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:07:37,583 INFO L87 Difference]: Start difference. First operand 524 states and 659 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:07:37,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:37,864 INFO L93 Difference]: Finished difference Result 1526 states and 1999 transitions. [2021-12-17 15:07:37,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 15:07:37,864 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2021-12-17 15:07:37,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:37,868 INFO L225 Difference]: With dead ends: 1526 [2021-12-17 15:07:37,868 INFO L226 Difference]: Without dead ends: 1010 [2021-12-17 15:07:37,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:07:37,870 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 315 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:37,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 274 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:07:37,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2021-12-17 15:07:37,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 998. [2021-12-17 15:07:37,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 745 states have (on average 1.225503355704698) internal successors, (913), 792 states have internal predecessors, (913), 130 states have call successors, (130), 118 states have call predecessors, (130), 122 states have return successors, (216), 128 states have call predecessors, (216), 130 states have call successors, (216) [2021-12-17 15:07:37,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1259 transitions. [2021-12-17 15:07:37,906 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1259 transitions. Word has length 48 [2021-12-17 15:07:37,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:37,906 INFO L470 AbstractCegarLoop]: Abstraction has 998 states and 1259 transitions. [2021-12-17 15:07:37,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:07:37,906 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1259 transitions. [2021-12-17 15:07:37,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-17 15:07:37,907 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:37,907 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:37,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 15:07:37,908 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:37,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:37,908 INFO L85 PathProgramCache]: Analyzing trace with hash -938154221, now seen corresponding path program 1 times [2021-12-17 15:07:37,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:37,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191710817] [2021-12-17 15:07:37,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:37,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:37,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:07:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:37,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:07:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:37,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 15:07:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:37,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-17 15:07:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:37,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:37,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:37,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191710817] [2021-12-17 15:07:37,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191710817] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:37,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:37,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:07:37,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608147768] [2021-12-17 15:07:37,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:37,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:07:37,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:37,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:07:37,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:07:37,959 INFO L87 Difference]: Start difference. First operand 998 states and 1259 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-17 15:07:38,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:38,302 INFO L93 Difference]: Finished difference Result 1972 states and 2635 transitions. [2021-12-17 15:07:38,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 15:07:38,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 52 [2021-12-17 15:07:38,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:38,310 INFO L225 Difference]: With dead ends: 1972 [2021-12-17 15:07:38,310 INFO L226 Difference]: Without dead ends: 1970 [2021-12-17 15:07:38,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-12-17 15:07:38,311 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 427 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:38,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 209 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:07:38,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2021-12-17 15:07:38,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1533. [2021-12-17 15:07:38,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1138 states have (on average 1.2293497363796133) internal successors, (1399), 1228 states have internal predecessors, (1399), 211 states have call successors, (211), 151 states have call predecessors, (211), 183 states have return successors, (428), 204 states have call predecessors, (428), 211 states have call successors, (428) [2021-12-17 15:07:38,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 2038 transitions. [2021-12-17 15:07:38,386 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 2038 transitions. Word has length 52 [2021-12-17 15:07:38,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:38,386 INFO L470 AbstractCegarLoop]: Abstraction has 1533 states and 2038 transitions. [2021-12-17 15:07:38,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-17 15:07:38,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 2038 transitions. [2021-12-17 15:07:38,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-17 15:07:38,389 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:38,389 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2021-12-17 15:07:38,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 15:07:38,389 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:38,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:38,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1573279230, now seen corresponding path program 1 times [2021-12-17 15:07:38,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:38,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664175684] [2021-12-17 15:07:38,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:38,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:07:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:07:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 15:07:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:07:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-17 15:07:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:07:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,465 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 15:07:38,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:38,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664175684] [2021-12-17 15:07:38,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664175684] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:38,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:38,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 15:07:38,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048437722] [2021-12-17 15:07:38,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:38,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 15:07:38,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:38,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 15:07:38,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-17 15:07:38,468 INFO L87 Difference]: Start difference. First operand 1533 states and 2038 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-17 15:07:38,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:38,749 INFO L93 Difference]: Finished difference Result 1800 states and 2379 transitions. [2021-12-17 15:07:38,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 15:07:38,749 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 82 [2021-12-17 15:07:38,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:38,752 INFO L225 Difference]: With dead ends: 1800 [2021-12-17 15:07:38,753 INFO L226 Difference]: Without dead ends: 769 [2021-12-17 15:07:38,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-12-17 15:07:38,755 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 377 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:38,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 279 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:07:38,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2021-12-17 15:07:38,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 740. [2021-12-17 15:07:38,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 552 states have (on average 1.193840579710145) internal successors, (659), 591 states have internal predecessors, (659), 98 states have call successors, (98), 72 states have call predecessors, (98), 89 states have return successors, (204), 99 states have call predecessors, (204), 98 states have call successors, (204) [2021-12-17 15:07:38,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 961 transitions. [2021-12-17 15:07:38,783 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 961 transitions. Word has length 82 [2021-12-17 15:07:38,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:38,783 INFO L470 AbstractCegarLoop]: Abstraction has 740 states and 961 transitions. [2021-12-17 15:07:38,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-17 15:07:38,784 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 961 transitions. [2021-12-17 15:07:38,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-17 15:07:38,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:38,785 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-17 15:07:38,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 15:07:38,785 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:38,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:38,786 INFO L85 PathProgramCache]: Analyzing trace with hash 750648094, now seen corresponding path program 1 times [2021-12-17 15:07:38,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:38,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697213594] [2021-12-17 15:07:38,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:38,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:07:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:07:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:07:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:07:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-17 15:07:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-17 15:07:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 15:07:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,858 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-17 15:07:38,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:38,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697213594] [2021-12-17 15:07:38,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697213594] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:07:38,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528465531] [2021-12-17 15:07:38,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:38,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:07:38,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:07:38,860 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) [2021-12-17 15:07:38,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 15:07:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:38,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-17 15:07:38,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:07:39,171 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:39,172 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:07:39,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528465531] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:39,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:07:39,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2021-12-17 15:07:39,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089230610] [2021-12-17 15:07:39,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:39,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:07:39,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:39,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:07:39,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:07:39,173 INFO L87 Difference]: Start difference. First operand 740 states and 961 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-17 15:07:39,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:39,223 INFO L93 Difference]: Finished difference Result 1278 states and 1694 transitions. [2021-12-17 15:07:39,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:07:39,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 90 [2021-12-17 15:07:39,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:39,227 INFO L225 Difference]: With dead ends: 1278 [2021-12-17 15:07:39,227 INFO L226 Difference]: Without dead ends: 640 [2021-12-17 15:07:39,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:07:39,230 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 38 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:39,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 191 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:07:39,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2021-12-17 15:07:39,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 640. [2021-12-17 15:07:39,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 476 states have (on average 1.1680672268907564) internal successors, (556), 510 states have internal predecessors, (556), 85 states have call successors, (85), 67 states have call predecessors, (85), 78 states have return successors, (129), 85 states have call predecessors, (129), 85 states have call successors, (129) [2021-12-17 15:07:39,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 770 transitions. [2021-12-17 15:07:39,260 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 770 transitions. Word has length 90 [2021-12-17 15:07:39,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:39,260 INFO L470 AbstractCegarLoop]: Abstraction has 640 states and 770 transitions. [2021-12-17 15:07:39,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-17 15:07:39,260 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 770 transitions. [2021-12-17 15:07:39,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-17 15:07:39,262 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:39,262 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:39,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 15:07:39,475 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,SelfDestructingSolverStorable10 [2021-12-17 15:07:39,475 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:39,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:39,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1881348981, now seen corresponding path program 1 times [2021-12-17 15:07:39,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:39,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151174563] [2021-12-17 15:07:39,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:39,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:39,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:07:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:39,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:07:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:39,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:07:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:39,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:07:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:39,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-17 15:07:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:39,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 15:07:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:39,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:07:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:39,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:07:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:39,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 15:07:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:39,637 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-17 15:07:39,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:39,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151174563] [2021-12-17 15:07:39,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151174563] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:07:39,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371094315] [2021-12-17 15:07:39,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:39,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:07:39,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:07:39,638 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) [2021-12-17 15:07:39,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 15:07:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:39,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 15:07:39,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:07:39,922 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-17 15:07:39,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:07:39,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371094315] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:39,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:07:39,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2021-12-17 15:07:39,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733070252] [2021-12-17 15:07:39,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:39,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:07:39,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:39,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:07:39,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-12-17 15:07:39,924 INFO L87 Difference]: Start difference. First operand 640 states and 770 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-17 15:07:40,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:40,015 INFO L93 Difference]: Finished difference Result 1163 states and 1392 transitions. [2021-12-17 15:07:40,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 15:07:40,016 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 95 [2021-12-17 15:07:40,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:40,016 INFO L225 Difference]: With dead ends: 1163 [2021-12-17 15:07:40,016 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 15:07:40,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2021-12-17 15:07:40,019 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 45 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:40,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 744 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:07:40,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 15:07:40,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 15:07:40,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:07:40,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 15:07:40,020 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 95 [2021-12-17 15:07:40,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:40,020 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 15:07:40,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-17 15:07:40,021 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 15:07:40,021 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 15:07:40,023 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 15:07:40,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 15:07:40,241 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,SelfDestructingSolverStorable11 [2021-12-17 15:07:40,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 15:07:44,517 INFO L854 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 469 476) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or (not (= 1 ~systemActive~0)) .cse0) (or (= 0 ~systemActive~0) .cse0 (not (<= 2 ~waterLevel~0))))) [2021-12-17 15:07:44,517 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 469 476) no Hoare annotation was computed. [2021-12-17 15:07:44,517 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 469 476) no Hoare annotation was computed. [2021-12-17 15:07:44,517 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 402 408) no Hoare annotation was computed. [2021-12-17 15:07:44,518 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 402 408) the Hoare annotation is: true [2021-12-17 15:07:44,518 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: (let ((.cse4 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse2 (not (<= 1 ~pumpRunning~0))) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse5 (not (= ~pumpRunning~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~methaneLevelCritical~0 |old(~methaneLevelCritical~0)|)) (.cse3 (not (<= 1 |old(~methaneLevelCritical~0)|))) (.cse7 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 2 ~waterLevel~0))) (or .cse4 .cse5 .cse0 .cse6 .cse7) (or .cse4 .cse0 .cse2 .cse6 .cse7) (or .cse5 .cse1 .cse7 (not (= ~systemActive~0 0))) (or .cse5 .cse0 .cse1 .cse3 .cse7))) [2021-12-17 15:07:44,518 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2021-12-17 15:07:44,518 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2021-12-17 15:07:44,518 INFO L858 garLoopResultBuilder]: For program point L382-1(lines 381 400) no Hoare annotation was computed. [2021-12-17 15:07:44,519 INFO L858 garLoopResultBuilder]: For program point L444(lines 444 452) no Hoare annotation was computed. [2021-12-17 15:07:44,519 INFO L858 garLoopResultBuilder]: For program point L440(lines 440 457) no Hoare annotation was computed. [2021-12-17 15:07:44,519 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 285) no Hoare annotation was computed. [2021-12-17 15:07:44,519 INFO L858 garLoopResultBuilder]: For program point L300(line 300) no Hoare annotation was computed. [2021-12-17 15:07:44,519 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 378 401) no Hoare annotation was computed. [2021-12-17 15:07:44,519 INFO L854 garLoopResultBuilder]: At program point L482(line 482) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 (not (= ~systemActive~0 0))) (or .cse1 .cse2 .cse3 .cse4) (or (not (<= 2 |old(~waterLevel~0)|)) .cse1 .cse5 .cse2 .cse4) (or .cse1 .cse0 .cse3 .cse6) (or .cse1 .cse5 .cse0 .cse6) (or .cse1 .cse5 (and .cse2 (= ~methAndRunningLastTime~0 0)) .cse4 .cse6))) [2021-12-17 15:07:44,519 INFO L858 garLoopResultBuilder]: For program point L482-1(line 482) no Hoare annotation was computed. [2021-12-17 15:07:44,519 INFO L854 garLoopResultBuilder]: At program point L272(line 272) the Hoare annotation is: (let ((.cse9 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (= ~pumpRunning~0 0))) (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse10 (<= 1 ~pumpRunning~0)) (.cse11 (<= 2 ~waterLevel~0)) (.cse4 (and (= ~methAndRunningLastTime~0 |old(~methAndRunningLastTime~0)|) .cse9 .cse2)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse7 (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) (<= 1 |timeShift_isMethaneAlarm_#res#1|) .cse2)) (.cse3 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2 .cse3) (or .cse4 .cse5 (not (= ~systemActive~0 0))) (or .cse0 .cse6 .cse7 .cse3 .cse8) (or (and .cse9 .cse10 .cse11) .cse4 .cse0 .cse5 .cse1 .cse8) (or (and .cse9 .cse10 .cse11 (= ~methAndRunningLastTime~0 0)) .cse4 .cse0 .cse6 .cse5 .cse8) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse6 .cse7 .cse3)))) [2021-12-17 15:07:44,520 INFO L858 garLoopResultBuilder]: For program point L272-1(line 272) no Hoare annotation was computed. [2021-12-17 15:07:44,520 INFO L854 garLoopResultBuilder]: At program point L301(lines 296 303) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse3 (not (= ~systemActive~0 0))) (or .cse0 .cse4 .cse2 .cse5) (or .cse0 .cse3 .cse1 .cse5) (or .cse0 .cse4 .cse3 .cse5) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse4 .cse2))) [2021-12-17 15:07:44,520 INFO L854 garLoopResultBuilder]: At program point L450(line 450) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (= ~systemActive~0 0))) (or .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse3) (or .cse1 .cse4 .cse3 .cse5) (or .cse1 .cse0 .cse2 .cse5) (or .cse1 .cse4 .cse0 .cse5) (or (not (<= 2 |old(~waterLevel~0)|)) .cse1 .cse4 .cse3))) [2021-12-17 15:07:44,520 INFO L854 garLoopResultBuilder]: At program point L446(line 446) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (<= 1 ~methaneLevelCritical~0))) (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) .cse2 (<= 1 ~pumpRunning~0) .cse8 (<= 1 |timeShift_isMethaneAlarm_#res#1|) (= ~systemActive~0 1))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (not .cse8)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 (not (= ~systemActive~0 0))) (or .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse6 .cse4 .cse7) (or .cse1 .cse0 .cse3 .cse7) (or (not (<= 2 |old(~waterLevel~0)|)) .cse1 .cse5 .cse6 .cse4) (or .cse1 .cse6 .cse0 .cse7)))) [2021-12-17 15:07:44,520 INFO L854 garLoopResultBuilder]: At program point L455(line 455) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse7 (= ~pumpRunning~0 0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse3 (not (= ~systemActive~0 0))) (or .cse0 .cse4 .cse2 .cse5) (or .cse0 .cse4 .cse3 (and .cse6 (= ~methAndRunningLastTime~0 0) .cse7) .cse5) (or (and (= ~methAndRunningLastTime~0 |old(~methAndRunningLastTime~0)|) .cse6 .cse7) .cse0 .cse3 .cse1 .cse5) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse4 .cse2))) [2021-12-17 15:07:44,520 INFO L854 garLoopResultBuilder]: At program point L455-1(lines 436 460) the Hoare annotation is: (let ((.cse8 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (= ~pumpRunning~0 0))) (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse9 (<= 1 ~pumpRunning~0)) (.cse10 (<= 2 ~waterLevel~0)) (.cse11 (and (= ~methAndRunningLastTime~0 |old(~methAndRunningLastTime~0)|) .cse8 .cse2)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) (<= 1 |timeShift_isMethaneAlarm_#res#1|) .cse2)) (.cse3 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2 .cse3) (or .cse4 (not (= ~systemActive~0 0))) (or .cse0 .cse5 .cse6 .cse3 .cse7) (or (and .cse8 .cse9 .cse10) .cse11 .cse0 .cse4 .cse1 .cse7) (or (and .cse8 .cse9 .cse10 (= ~methAndRunningLastTime~0 0)) .cse11 .cse0 .cse5 .cse4 .cse7) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse5 .cse6 .cse3)))) [2021-12-17 15:07:44,521 INFO L854 garLoopResultBuilder]: At program point L484(lines 477 487) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (<= 1 |timeShift_isMethaneAlarm_#res#1|)) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or (and .cse0 (= ~methAndRunningLastTime~0 0) .cse1) .cse2 .cse3 .cse4 .cse5) (or .cse6 (not (= ~systemActive~0 0))) (or .cse2 .cse0 .cse7 .cse4) (or (not (<= 2 |old(~waterLevel~0)|)) .cse2 .cse3 (and .cse0 .cse1) .cse4) (or .cse2 .cse6 .cse7 .cse5) (or .cse2 .cse3 .cse6 .cse5))) [2021-12-17 15:07:44,521 INFO L858 garLoopResultBuilder]: For program point L389-1(lines 389 395) no Hoare annotation was computed. [2021-12-17 15:07:44,521 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 67) no Hoare annotation was computed. [2021-12-17 15:07:44,521 INFO L854 garLoopResultBuilder]: At program point L63-2(lines 59 70) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 (not (= ~systemActive~0 0))) (or .cse1 .cse2 .cse3 .cse4) (or (not (<= 2 |old(~waterLevel~0)|)) .cse1 .cse5 .cse2 .cse4) (or .cse1 .cse0 .cse3 .cse6) (or .cse1 .cse5 .cse0 .cse6) (or .cse1 .cse5 (and .cse2 (= ~methAndRunningLastTime~0 0)) .cse4 .cse6))) [2021-12-17 15:07:44,521 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 288) no Hoare annotation was computed. [2021-12-17 15:07:44,521 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 291) no Hoare annotation was computed. [2021-12-17 15:07:44,521 INFO L854 garLoopResultBuilder]: At program point L274-1(lines 266 294) the Hoare annotation is: (let ((.cse8 (= ~methAndRunningLastTime~0 0)) (.cse9 (= ~pumpRunning~0 0))) (let ((.cse6 (<= 1 ~pumpRunning~0)) (.cse7 (<= 2 ~waterLevel~0)) (.cse5 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse13 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 0)) (.cse10 (not (= |old(~pumpRunning~0)| 0))) (.cse11 (not (= ~methaneLevelCritical~0 0))) (.cse14 (not (= ~systemActive~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) .cse8 (<= 1 |timeShift_isMethaneAlarm_#res#1|) .cse9)) (.cse3 (not (<= 1 |old(~pumpRunning~0)|))) (.cse12 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1 .cse2 .cse3) (or (and .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse4 .cse5 .cse8 .cse9) .cse0 .cse10 .cse11 .cse12) (or (and .cse5 .cse6 .cse7) .cse0 .cse1 .cse10 (and .cse5 .cse8 .cse9) .cse12) (or (and .cse4 .cse8 .cse9) .cse0 (and .cse4 .cse13 .cse8) .cse11 .cse3) (or (and .cse5 .cse13 .cse8) .cse10 .cse14) (or .cse4 .cse10 .cse11 .cse14) (or .cse0 .cse1 .cse2 .cse3 .cse12)))) [2021-12-17 15:07:44,521 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 378 401) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~pumpRunning~0 0))) (let ((.cse7 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (= ~methAndRunningLastTime~0 |old(~methAndRunningLastTime~0)|)) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (not (= ~methaneLevelCritical~0 0))) (.cse11 (and .cse0 .cse5 .cse2)) (.cse9 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or (and .cse0 .cse1 .cse2) .cse3 (not (= ~systemActive~0 0))) (or (and .cse0 .cse4 .cse5) .cse6 .cse7 .cse8 .cse9) (or (and .cse1 .cse0 .cse4) .cse6 .cse10 .cse8) (or .cse6 .cse7 .cse3 .cse11 .cse9) (or (not (<= 2 |old(~waterLevel~0)|)) .cse6 .cse7 (and .cse0 .cse1 .cse4) .cse8) (or .cse6 .cse3 .cse10 .cse11 .cse9)))) [2021-12-17 15:07:44,522 INFO L854 garLoopResultBuilder]: At program point L493(lines 488 496) the Hoare annotation is: (let ((.cse9 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse12 (<= 1 ~methaneLevelCritical~0)) (.cse11 (= ~pumpRunning~0 0))) (let ((.cse4 (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) .cse9 .cse12 (<= 1 |timeShift_isMethaneAlarm_#res#1|) (= ~systemActive~0 1) .cse11)) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not .cse12)) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse10 (= ~methAndRunningLastTime~0 |old(~methAndRunningLastTime~0)|)) (.cse8 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not (= ~systemActive~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4 .cse2 .cse5) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse3 .cse4 .cse2) (or .cse6 .cse1 .cse7) (or .cse0 .cse6 .cse1 .cse5) (or (and .cse8 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) (= ~methAndRunningLastTime~0 0)) (and .cse9 .cse10 .cse8 .cse11) .cse0 .cse3 .cse6 .cse5) (or (and .cse9 .cse10 .cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse6 .cse7)))) [2021-12-17 15:07:44,522 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 378 401) no Hoare annotation was computed. [2021-12-17 15:07:44,522 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 300) no Hoare annotation was computed. [2021-12-17 15:07:44,522 INFO L861 garLoopResultBuilder]: At program point L163-2(lines 163 177) the Hoare annotation is: true [2021-12-17 15:07:44,522 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 153 182) no Hoare annotation was computed. [2021-12-17 15:07:44,522 INFO L861 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: true [2021-12-17 15:07:44,523 INFO L858 garLoopResultBuilder]: For program point L159-1(line 159) no Hoare annotation was computed. [2021-12-17 15:07:44,523 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 153 182) the Hoare annotation is: true [2021-12-17 15:07:44,523 INFO L861 garLoopResultBuilder]: At program point L178(lines 153 182) the Hoare annotation is: true [2021-12-17 15:07:44,523 INFO L858 garLoopResultBuilder]: For program point L174(line 174) no Hoare annotation was computed. [2021-12-17 15:07:44,523 INFO L858 garLoopResultBuilder]: For program point L167(lines 167 171) no Hoare annotation was computed. [2021-12-17 15:07:44,523 INFO L861 garLoopResultBuilder]: At program point L167-1(lines 167 171) the Hoare annotation is: true [2021-12-17 15:07:44,523 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-12-17 15:07:44,523 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 95 103) the Hoare annotation is: true [2021-12-17 15:07:44,524 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 95 103) no Hoare annotation was computed. [2021-12-17 15:07:44,524 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2021-12-17 15:07:44,524 INFO L861 garLoopResultBuilder]: At program point L225(lines 217 227) the Hoare annotation is: true [2021-12-17 15:07:44,524 INFO L861 garLoopResultBuilder]: At program point L250(lines 231 253) the Hoare annotation is: true [2021-12-17 15:07:44,524 INFO L854 garLoopResultBuilder]: At program point L564(lines 552 566) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~systemActive~0 0) (= ~pumpRunning~0 0)) [2021-12-17 15:07:44,524 INFO L858 garLoopResultBuilder]: For program point L556(lines 556 562) no Hoare annotation was computed. [2021-12-17 15:07:44,524 INFO L858 garLoopResultBuilder]: For program point L556-1(lines 556 562) no Hoare annotation was computed. [2021-12-17 15:07:44,525 INFO L854 garLoopResultBuilder]: At program point L263(lines 258 265) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~methAndRunningLastTime~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:07:44,525 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 15:07:44,525 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 15:07:44,525 INFO L858 garLoopResultBuilder]: For program point L317(lines 316 363) no Hoare annotation was computed. [2021-12-17 15:07:44,525 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 15:07:44,525 INFO L858 garLoopResultBuilder]: For program point L346(lines 346 359) no Hoare annotation was computed. [2021-12-17 15:07:44,525 INFO L854 garLoopResultBuilder]: At program point L598(lines 593 601) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~methAndRunningLastTime~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:07:44,526 INFO L854 garLoopResultBuilder]: At program point L338(line 338) the Hoare annotation is: (let ((.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse1 (<= 1 ~pumpRunning~0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~systemActive~0 1)) (.cse5 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse4 .cse2 .cse3 .cse5) (and .cse0 (= ~systemActive~0 0) .cse4 .cse5) (and .cse0 .cse6 .cse1 .cse4 .cse3) (and .cse0 .cse6 .cse4 .cse3 .cse5))) [2021-12-17 15:07:44,526 INFO L861 garLoopResultBuilder]: At program point L367(lines 306 371) the Hoare annotation is: true [2021-12-17 15:07:44,526 INFO L854 garLoopResultBuilder]: At program point L590(lines 586 592) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~methAndRunningLastTime~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:07:44,526 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 332) no Hoare annotation was computed. [2021-12-17 15:07:44,526 INFO L858 garLoopResultBuilder]: For program point L326-1(lines 326 332) no Hoare annotation was computed. [2021-12-17 15:07:44,526 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 15:07:44,526 INFO L858 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2021-12-17 15:07:44,527 INFO L854 garLoopResultBuilder]: At program point L558(line 558) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (<= 2 ~waterLevel~0) (not (= 0 ~systemActive~0))) (and .cse0 (= ~systemActive~0 1)))) [2021-12-17 15:07:44,527 INFO L854 garLoopResultBuilder]: At program point L364(lines 315 365) the Hoare annotation is: false [2021-12-17 15:07:44,527 INFO L854 garLoopResultBuilder]: At program point L583(lines 579 585) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~methAndRunningLastTime~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:07:44,527 INFO L858 garLoopResultBuilder]: For program point L352(lines 352 358) no Hoare annotation was computed. [2021-12-17 15:07:44,527 INFO L854 garLoopResultBuilder]: At program point L352-2(lines 346 359) the Hoare annotation is: (let ((.cse1 (<= 1 ~pumpRunning~0)) (.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~systemActive~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse4 .cse2 .cse3 .cse5) (and .cse0 .cse6 .cse1 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse3) (and .cse0 .cse6 .cse4 .cse3 .cse5) (and .cse0 (= ~systemActive~0 0) .cse5))) [2021-12-17 15:07:44,527 INFO L854 garLoopResultBuilder]: At program point L212(lines 208 214) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~methAndRunningLastTime~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:07:44,528 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 248) no Hoare annotation was computed. [2021-12-17 15:07:44,528 INFO L858 garLoopResultBuilder]: For program point L336(lines 336 342) no Hoare annotation was computed. [2021-12-17 15:07:44,528 INFO L858 garLoopResultBuilder]: For program point L336-1(lines 336 342) no Hoare annotation was computed. [2021-12-17 15:07:44,528 INFO L858 garLoopResultBuilder]: For program point L241-2(lines 241 248) no Hoare annotation was computed. [2021-12-17 15:07:44,528 INFO L854 garLoopResultBuilder]: At program point L361(lines 316 363) the Hoare annotation is: (let ((.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse1 (<= 1 ~pumpRunning~0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~systemActive~0 1)) (.cse5 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse4 .cse2 .cse3 .cse5) (and .cse0 (= ~systemActive~0 0) .cse4 .cse5) (and .cse0 .cse6 .cse1 .cse4 .cse3) (and .cse0 .cse6 .cse4 .cse3 .cse5))) [2021-12-17 15:07:44,528 INFO L854 garLoopResultBuilder]: At program point L328(line 328) the Hoare annotation is: (let ((.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse1 (<= 1 ~pumpRunning~0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~systemActive~0 1)) (.cse5 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse4 .cse2 .cse3 .cse5) (and .cse0 (= ~systemActive~0 0) .cse4 .cse5) (and .cse0 .cse6 .cse1 .cse4 .cse3) (and .cse0 .cse6 .cse4 .cse3 .cse5))) [2021-12-17 15:07:44,529 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 410 434) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse2 .cse1 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2 (not (= ~methAndRunningLastTime~0 0)) .cse3))) [2021-12-17 15:07:44,529 INFO L854 garLoopResultBuilder]: At program point L145(lines 136 149) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0))) (let ((.cse0 (and (<= 2 ~waterLevel~0) .cse2)) (.cse3 (not (= 1 ~systemActive~0))) (.cse1 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (and .cse1 .cse2) .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse4 (not (= ~methAndRunningLastTime~0 0))) (or .cse3 .cse5 (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse3 (and .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse4 .cse5)))) [2021-12-17 15:07:44,529 INFO L854 garLoopResultBuilder]: At program point L424(line 424) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse2 (and (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0) (= ~pumpRunning~0 0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse2 (not (<= 1 ~methaneLevelCritical~0)) .cse3 (not (= ~methAndRunningLastTime~0 0))) (or .cse0 .cse2 .cse3 .cse1))) [2021-12-17 15:07:44,529 INFO L854 garLoopResultBuilder]: At program point L548(lines 533 551) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0))) (let ((.cse2 (and (<= 2 ~waterLevel~0) .cse5)) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (and (not (= 0 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~5#1|)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 0) .cse5)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse3 .cse4 (not (= ~methAndRunningLastTime~0 0))) (or .cse2 .cse0 .cse3 .cse4 .cse1)))) [2021-12-17 15:07:44,529 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 426) no Hoare annotation was computed. [2021-12-17 15:07:44,529 INFO L858 garLoopResultBuilder]: For program point L414(lines 414 431) no Hoare annotation was computed. [2021-12-17 15:07:44,530 INFO L858 garLoopResultBuilder]: For program point L542(lines 542 546) no Hoare annotation was computed. [2021-12-17 15:07:44,530 INFO L858 garLoopResultBuilder]: For program point L542-2(lines 542 546) no Hoare annotation was computed. [2021-12-17 15:07:44,530 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 410 434) no Hoare annotation was computed. [2021-12-17 15:07:44,530 INFO L854 garLoopResultBuilder]: At program point L466(lines 461 468) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))) (or .cse2 .cse0 .cse3 .cse1) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse3 (not (= ~methAndRunningLastTime~0 0))))) [2021-12-17 15:07:44,530 INFO L854 garLoopResultBuilder]: At program point L429(line 429) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 (not (= ~methAndRunningLastTime~0 0))))) [2021-12-17 15:07:44,530 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 146) no Hoare annotation was computed. [2021-12-17 15:07:44,530 INFO L858 garLoopResultBuilder]: For program point L429-1(lines 410 434) no Hoare annotation was computed. [2021-12-17 15:07:44,531 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2021-12-17 15:07:44,531 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2021-12-17 15:07:44,531 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: (let ((.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 ~pumpRunning~0))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not (= ~methAndRunningLastTime~0 0))) (.cse6 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 (not (= ~systemActive~0 0))) (or (not (<= 2 |old(~waterLevel~0)|)) .cse3 .cse4 .cse5 .cse1) (or .cse0 .cse3 .cse4 .cse1 .cse2) (or .cse0 .cse3 .cse1 .cse2 .cse6) (or .cse3 .cse5 .cse1 .cse2 .cse6))) [2021-12-17 15:07:44,533 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:44,535 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 15:07:44,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:07:44 BoogieIcfgContainer [2021-12-17 15:07:44,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 15:07:44,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 15:07:44,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 15:07:44,559 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 15:07:44,560 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:07:35" (3/4) ... [2021-12-17 15:07:44,562 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 15:07:44,567 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-12-17 15:07:44,567 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-17 15:07:44,567 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-17 15:07:44,567 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-17 15:07:44,568 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-17 15:07:44,568 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-12-17 15:07:44,568 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:07:44,568 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-17 15:07:44,574 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 51 nodes and edges [2021-12-17 15:07:44,574 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-17 15:07:44,575 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 15:07:44,575 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 15:07:44,576 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 15:07:44,576 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:07:44,576 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:07:44,594 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(systemActive == 0)) && (((!(1 == systemActive) || pumpRunning == \old(pumpRunning)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && ((((!(2 <= \old(waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || pumpRunning == \old(pumpRunning)) || !(1 <= \old(pumpRunning)))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(methAndRunningLastTime) == 0))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0))) && ((((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) || !(1 <= \old(pumpRunning))) || !(\old(methAndRunningLastTime) == 0)) [2021-12-17 15:07:44,595 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(1 == systemActive) || pumpRunning == \old(pumpRunning)) || !(methaneLevelCritical == 0)) || pumpRunning == 0) || !(1 <= \old(pumpRunning))) && (!(\old(pumpRunning) == 0) || !(systemActive == 0))) && ((((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((1 <= tmp && 1 <= \result) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) || !(\old(methAndRunningLastTime) == 0))) && (((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) || ((methAndRunningLastTime == \old(methAndRunningLastTime) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(methAndRunningLastTime) == 0))) && ((((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) && methAndRunningLastTime == 0) || ((methAndRunningLastTime == \old(methAndRunningLastTime) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0))) && ((((!(2 <= \old(waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((1 <= tmp && 1 <= \result) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) [2021-12-17 15:07:44,596 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(2 <= \old(waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (((1 <= tmp && methAndRunningLastTime == 0) && 1 <= \result) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) && (((((((((tmp == 0 && waterLevel == \old(waterLevel)) && 1 <= pumpRunning) && 2 <= waterLevel) && methAndRunningLastTime == 0) || (((tmp == 0 && waterLevel == \old(waterLevel)) && methAndRunningLastTime == 0) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(methAndRunningLastTime) == 0))) && (((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || ((waterLevel == \old(waterLevel) && methAndRunningLastTime == 0) && pumpRunning == 0)) || !(\old(methAndRunningLastTime) == 0))) && ((((((tmp == 0 && methAndRunningLastTime == 0) && pumpRunning == 0) || !(1 == systemActive)) || ((tmp == 0 && pumpRunning == \old(pumpRunning)) && methAndRunningLastTime == 0)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && ((((waterLevel == \old(waterLevel) && pumpRunning == \old(pumpRunning)) && methAndRunningLastTime == 0) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((tmp == 0 || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 0))) && ((((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (((1 <= tmp && methAndRunningLastTime == 0) && 1 <= \result) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) || !(\old(methAndRunningLastTime) == 0)) [2021-12-17 15:07:44,596 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && 1 <= \result) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(1 <= \old(pumpRunning))) || !(\old(methAndRunningLastTime) == 0)) && (!(\old(pumpRunning) == 0) || !(systemActive == 0))) && (((!(1 == systemActive) || pumpRunning == \old(pumpRunning)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && ((((!(2 <= \old(waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && 1 <= \result)) || !(1 <= \old(pumpRunning)))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(methAndRunningLastTime) == 0))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0)) [2021-12-17 15:07:44,596 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning))) && ((((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (((((1 <= tmp && \result == 0) && 1 <= methaneLevelCritical) && 1 <= \result) && systemActive == 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) || !(\old(methAndRunningLastTime) == 0))) && ((((!(2 <= \old(waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (((((1 <= tmp && \result == 0) && 1 <= methaneLevelCritical) && 1 <= \result) && systemActive == 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning)))) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 0))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(methAndRunningLastTime) == 0))) && ((((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) && methAndRunningLastTime == 0) || (((\result == 0 && methAndRunningLastTime == \old(methAndRunningLastTime)) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0))) && (((((\result == 0 && methAndRunningLastTime == \old(methAndRunningLastTime)) && waterLevel == \old(waterLevel)) && pumpRunning == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) [2021-12-17 15:07:44,597 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((2 <= waterLevel && pumpRunning == 0) || (!(\result == 0) && pumpRunning == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(methAndRunningLastTime == 0)) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && (((((2 <= waterLevel && pumpRunning == 0) || !(1 == systemActive)) || (!(\result == 0) && pumpRunning == \old(pumpRunning))) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) [2021-12-17 15:07:44,597 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning))) && (!(\old(pumpRunning) == 0) || !(systemActive == 0))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(1 <= \old(pumpRunning))) || !(\old(methAndRunningLastTime) == 0))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(methAndRunningLastTime) == 0))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0))) && (((!(2 <= \old(waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(1 <= \old(pumpRunning))) [2021-12-17 15:07:44,597 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning))) && ((((((2 <= waterLevel && pumpRunning == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (((!(0 == tmp) && \result == 0) && tmp___0 == 0) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(methAndRunningLastTime == 0))) && (((((2 <= waterLevel && pumpRunning == 0) || !(1 == systemActive)) || (((!(0 == tmp) && \result == 0) && tmp___0 == 0) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) [2021-12-17 15:07:44,597 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning))) && ((((1 <= pumpRunning && 2 <= waterLevel) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && (((((1 <= pumpRunning && 2 <= waterLevel) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(methAndRunningLastTime == 0)) [2021-12-17 15:07:44,615 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 15:07:44,616 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 15:07:44,616 INFO L158 Benchmark]: Toolchain (without parser) took 10050.01ms. Allocated memory was 81.8MB in the beginning and 192.9MB in the end (delta: 111.1MB). Free memory was 37.5MB in the beginning and 124.8MB in the end (delta: -87.3MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2021-12-17 15:07:44,616 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 15:07:44,617 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.21ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 37.3MB in the beginning and 80.7MB in the end (delta: -43.4MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2021-12-17 15:07:44,617 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.54ms. Allocated memory is still 109.1MB. Free memory was 80.7MB in the beginning and 78.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:07:44,617 INFO L158 Benchmark]: Boogie Preprocessor took 17.41ms. Allocated memory is still 109.1MB. Free memory was 78.2MB in the beginning and 76.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:07:44,618 INFO L158 Benchmark]: RCFGBuilder took 447.54ms. Allocated memory is still 109.1MB. Free memory was 76.5MB in the beginning and 59.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-17 15:07:44,618 INFO L158 Benchmark]: TraceAbstraction took 9157.88ms. Allocated memory was 109.1MB in the beginning and 192.9MB in the end (delta: 83.9MB). Free memory was 59.7MB in the beginning and 131.1MB in the end (delta: -71.4MB). Peak memory consumption was 96.0MB. Max. memory is 16.1GB. [2021-12-17 15:07:44,618 INFO L158 Benchmark]: Witness Printer took 56.77ms. Allocated memory is still 192.9MB. Free memory was 131.1MB in the beginning and 124.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 15:07:44,620 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 81.8MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.21ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 37.3MB in the beginning and 80.7MB in the end (delta: -43.4MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.54ms. Allocated memory is still 109.1MB. Free memory was 80.7MB in the beginning and 78.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.41ms. Allocated memory is still 109.1MB. Free memory was 78.2MB in the beginning and 76.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 447.54ms. Allocated memory is still 109.1MB. Free memory was 76.5MB in the beginning and 59.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9157.88ms. Allocated memory was 109.1MB in the beginning and 192.9MB in the end (delta: 83.9MB). Free memory was 59.7MB in the beginning and 131.1MB in the end (delta: -71.4MB). Peak memory consumption was 96.0MB. Max. memory is 16.1GB. * Witness Printer took 56.77ms. Allocated memory is still 192.9MB. Free memory was 131.1MB in the beginning and 124.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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 - PositiveResult [Line: 300]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1928 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1895 mSDsluCounter, 3455 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2087 mSDsCounter, 740 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1710 IncrementalHoareTripleChecker+Invalid, 2450 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 740 mSolverCounterUnsat, 1368 mSDtfsCounter, 1710 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 395 GetRequests, 283 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1533occurred in iteration=9, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 561 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 2171 PreInvPairs, 2420 NumberOfFragments, 2653 HoareAnnotationTreeSize, 2171 FomulaSimplifications, 2345 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 43 FomulaSimplificationsInter, 22296 FormulaSimplificationTreeSizeReductionInter, 3.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 801 NumberOfCodeBlocks, 801 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 787 ConstructedInterpolants, 0 QuantifiedInterpolants, 1633 SizeOfPredicates, 5 NumberOfNonLiveVariables, 935 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 130/157 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: (((((((2 <= waterLevel && pumpRunning == 0) || (!(\result == 0) && pumpRunning == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(methAndRunningLastTime == 0)) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && (((((2 <= waterLevel && pumpRunning == 0) || !(1 == systemActive)) || (!(\result == 0) && pumpRunning == \old(pumpRunning))) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 461]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning))) && ((((1 <= pumpRunning && 2 <= waterLevel) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && (((((1 <= pumpRunning && 2 <= waterLevel) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 296]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning))) && (!(\old(pumpRunning) == 0) || !(systemActive == 0))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(1 <= \old(pumpRunning))) || !(\old(methAndRunningLastTime) == 0))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(methAndRunningLastTime) == 0))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0))) && (((!(2 <= \old(waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(1 <= \old(pumpRunning))) - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && methaneLevelCritical == 0) && methAndRunningLastTime == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning))) && ((((((2 <= waterLevel && pumpRunning == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (((!(0 == tmp) && \result == 0) && tmp___0 == 0) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(methAndRunningLastTime == 0))) && (((((2 <= waterLevel && pumpRunning == 0) || !(1 == systemActive)) || (((!(0 == tmp) && \result == 0) && tmp___0 == 0) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && 1 <= pumpRunning) && 2 <= waterLevel) && 1 <= methaneLevelCritical) && systemActive == 1) || ((((splverifierCounter == 0 && methAndRunningLastTime == 0) && 1 <= methaneLevelCritical) && systemActive == 1) && pumpRunning == 0)) || (((splverifierCounter == 0 && systemActive == 0) && methAndRunningLastTime == 0) && pumpRunning == 0)) || ((((splverifierCounter == 0 && methaneLevelCritical == 0) && 1 <= pumpRunning) && methAndRunningLastTime == 0) && systemActive == 1)) || ((((splverifierCounter == 0 && methaneLevelCritical == 0) && methAndRunningLastTime == 0) && systemActive == 1) && pumpRunning == 0) - InvariantResult [Line: 258]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && methaneLevelCritical == 0) && methAndRunningLastTime == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 488]: Loop Invariant Derived loop invariant: (((((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning))) && ((((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (((((1 <= tmp && \result == 0) && 1 <= methaneLevelCritical) && 1 <= \result) && systemActive == 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) || !(\old(methAndRunningLastTime) == 0))) && ((((!(2 <= \old(waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (((((1 <= tmp && \result == 0) && 1 <= methaneLevelCritical) && 1 <= \result) && systemActive == 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning)))) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 0))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(methAndRunningLastTime) == 0))) && ((((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) && methAndRunningLastTime == 0) || (((\result == 0 && methAndRunningLastTime == \old(methAndRunningLastTime)) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0))) && (((((\result == 0 && methAndRunningLastTime == \old(methAndRunningLastTime)) && waterLevel == \old(waterLevel)) && pumpRunning == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: (((((((((!(2 <= \old(waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (((1 <= tmp && methAndRunningLastTime == 0) && 1 <= \result) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) && (((((((((tmp == 0 && waterLevel == \old(waterLevel)) && 1 <= pumpRunning) && 2 <= waterLevel) && methAndRunningLastTime == 0) || (((tmp == 0 && waterLevel == \old(waterLevel)) && methAndRunningLastTime == 0) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(methAndRunningLastTime) == 0))) && (((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || ((waterLevel == \old(waterLevel) && methAndRunningLastTime == 0) && pumpRunning == 0)) || !(\old(methAndRunningLastTime) == 0))) && ((((((tmp == 0 && methAndRunningLastTime == 0) && pumpRunning == 0) || !(1 == systemActive)) || ((tmp == 0 && pumpRunning == \old(pumpRunning)) && methAndRunningLastTime == 0)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && ((((waterLevel == \old(waterLevel) && pumpRunning == \old(pumpRunning)) && methAndRunningLastTime == 0) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((tmp == 0 || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 0))) && ((((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (((1 <= tmp && methAndRunningLastTime == 0) && 1 <= \result) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) || !(\old(methAndRunningLastTime) == 0)) - InvariantResult [Line: 579]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && methaneLevelCritical == 0) && methAndRunningLastTime == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 436]: Loop Invariant Derived loop invariant: ((((((((!(1 == systemActive) || pumpRunning == \old(pumpRunning)) || !(methaneLevelCritical == 0)) || pumpRunning == 0) || !(1 <= \old(pumpRunning))) && (!(\old(pumpRunning) == 0) || !(systemActive == 0))) && ((((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((1 <= tmp && 1 <= \result) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) || !(\old(methAndRunningLastTime) == 0))) && (((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) || ((methAndRunningLastTime == \old(methAndRunningLastTime) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(methAndRunningLastTime) == 0))) && ((((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) && methAndRunningLastTime == 0) || ((methAndRunningLastTime == \old(methAndRunningLastTime) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0))) && ((((!(2 <= \old(waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((1 <= tmp && 1 <= \result) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && methaneLevelCritical == 0) && methAndRunningLastTime == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 153]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && methaneLevelCritical == 0) && methAndRunningLastTime == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(systemActive == 0)) && (((!(1 == systemActive) || pumpRunning == \old(pumpRunning)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && ((((!(2 <= \old(waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || pumpRunning == \old(pumpRunning)) || !(1 <= \old(pumpRunning)))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(methAndRunningLastTime) == 0))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0))) && ((((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) || !(1 <= \old(pumpRunning))) || !(\old(methAndRunningLastTime) == 0)) - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: (splverifierCounter == 0 && systemActive == 0) && pumpRunning == 0 - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: ((((((((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && 1 <= \result) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(1 <= \old(pumpRunning))) || !(\old(methAndRunningLastTime) == 0)) && (!(\old(pumpRunning) == 0) || !(systemActive == 0))) && (((!(1 == systemActive) || pumpRunning == \old(pumpRunning)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && ((((!(2 <= \old(waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && 1 <= \result)) || !(1 <= \old(pumpRunning)))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(methAndRunningLastTime) == 0))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0)) RESULT: Ultimate proved your program to be correct! [2021-12-17 15:07:44,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE