./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product58.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_spec1_product58.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 5ed8e4dea18b15d78522f05bcbacefb8bf743c0552ef5a7415602905a04fdc4c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:07:06,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:07:06,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:07:06,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:07:06,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:07:06,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:07:06,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:07:06,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:07:06,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:07:06,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:07:06,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:07:06,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:07:06,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:07:06,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:07:06,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:07:06,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:07:06,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:07:06,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:07:06,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:07:06,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:07:06,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:07:06,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:07:06,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:07:06,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:07:06,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:07:06,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:07:06,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:07:06,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:07:06,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:07:06,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:07:06,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:07:06,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:07:06,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:07:06,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:07:06,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:07:06,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:07:06,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:07:06,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:07:06,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:07:06,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:07:06,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:07:06,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:07:06,777 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:07:06,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:07:06,778 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:07:06,778 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:07:06,779 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:07:06,779 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:07:06,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:07:06,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:07:06,779 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:07:06,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:07:06,780 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:07:06,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:07:06,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:07:06,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:07:06,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:07:06,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:07:06,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:07:06,781 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:07:06,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:07:06,782 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:07:06,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:07:06,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:07:06,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:07:06,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:07:06,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:07:06,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:07:06,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:07:06,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:07:06,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:07:06,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:07:06,784 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:07:06,784 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:07:06,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:07:06,784 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:07:06,784 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed8e4dea18b15d78522f05bcbacefb8bf743c0552ef5a7415602905a04fdc4c [2021-12-17 15:07:07,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:07:07,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:07:07,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:07:07,041 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:07:07,043 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:07:07,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2021-12-17 15:07:07,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b37cb90d/90c2742320274d0eb6cf81bf053fa7eb/FLAGa3cf9252d [2021-12-17 15:07:07,505 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:07:07,505 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2021-12-17 15:07:07,512 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b37cb90d/90c2742320274d0eb6cf81bf053fa7eb/FLAGa3cf9252d [2021-12-17 15:07:07,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b37cb90d/90c2742320274d0eb6cf81bf053fa7eb [2021-12-17 15:07:07,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:07:07,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:07:07,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:07:07,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:07:07,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:07:07,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:07:07" (1/1) ... [2021-12-17 15:07:07,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@551e3878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:07, skipping insertion in model container [2021-12-17 15:07:07,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:07:07" (1/1) ... [2021-12-17 15:07:07,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:07:07,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:07:07,678 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_spec1_product58.cil.c[1605,1618] [2021-12-17 15:07:07,755 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:07:07,761 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:07:07,769 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_spec1_product58.cil.c[1605,1618] [2021-12-17 15:07:07,798 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:07:07,808 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:07:07,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:07 WrapperNode [2021-12-17 15:07:07,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:07:07,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:07:07,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:07:07,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:07:07,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:07" (1/1) ... [2021-12-17 15:07:07,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:07" (1/1) ... [2021-12-17 15:07:07,840 INFO L137 Inliner]: procedures = 57, calls = 157, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 271 [2021-12-17 15:07:07,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:07:07,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:07:07,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:07:07,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:07:07,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:07" (1/1) ... [2021-12-17 15:07:07,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:07" (1/1) ... [2021-12-17 15:07:07,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:07" (1/1) ... [2021-12-17 15:07:07,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:07" (1/1) ... [2021-12-17 15:07:07,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:07" (1/1) ... [2021-12-17 15:07:07,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:07" (1/1) ... [2021-12-17 15:07:07,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:07" (1/1) ... [2021-12-17 15:07:07,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:07:07,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:07:07,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:07:07,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:07:07,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:07" (1/1) ... [2021-12-17 15:07:07,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:07:07,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:07:07,915 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 15:07:07,928 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 15:07:07,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:07:07,947 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-17 15:07:07,947 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-17 15:07:07,947 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-17 15:07:07,947 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-17 15:07:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-17 15:07:07,948 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-17 15:07:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-17 15:07:07,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-17 15:07:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:07:07,948 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:07:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-17 15:07:07,948 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-17 15:07:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:07:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-17 15:07:07,949 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-17 15:07:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:07:07,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:07:08,017 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:07:08,019 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:07:08,203 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:07:08,208 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:07:08,208 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 15:07:08,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:07:08 BoogieIcfgContainer [2021-12-17 15:07:08,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:07:08,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:07:08,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:07:08,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:07:08,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:07:07" (1/3) ... [2021-12-17 15:07:08,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178d8bdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:07:08, skipping insertion in model container [2021-12-17 15:07:08,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:07" (2/3) ... [2021-12-17 15:07:08,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178d8bdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:07:08, skipping insertion in model container [2021-12-17 15:07:08,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:07:08" (3/3) ... [2021-12-17 15:07:08,226 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2021-12-17 15:07:08,229 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:07:08,231 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:07:08,269 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:07:08,273 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 15:07:08,273 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:07:08,303 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-17 15:07:08,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-17 15:07:08,308 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:08,308 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] [2021-12-17 15:07:08,308 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:08,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:08,316 INFO L85 PathProgramCache]: Analyzing trace with hash 528843452, now seen corresponding path program 1 times [2021-12-17 15:07:08,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:08,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321248878] [2021-12-17 15:07:08,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:08,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:08,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-17 15:07:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:08,537 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 15:07:08,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:08,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321248878] [2021-12-17 15:07:08,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321248878] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:08,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:08,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:07:08,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813153097] [2021-12-17 15:07:08,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:08,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:07:08,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:08,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:07:08,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:07:08,568 INFO L87 Difference]: Start difference. First operand has 92 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 15:07:08,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:08,612 INFO L93 Difference]: Finished difference Result 176 states and 239 transitions. [2021-12-17 15:07:08,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:07:08,614 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2021-12-17 15:07:08,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:08,620 INFO L225 Difference]: With dead ends: 176 [2021-12-17 15:07:08,620 INFO L226 Difference]: Without dead ends: 83 [2021-12-17 15:07:08,625 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 15:07:08,628 INFO L933 BasicCegarLoop]: 116 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, 116 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 15:07:08,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:07:08,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-12-17 15:07:08,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-12-17 15:07:08,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 64 states have (on average 1.3125) internal successors, (84), 71 states have internal predecessors, (84), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-17 15:07:08,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2021-12-17 15:07:08,669 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 23 [2021-12-17 15:07:08,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:08,670 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2021-12-17 15:07:08,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 15:07:08,670 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2021-12-17 15:07:08,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-17 15:07:08,674 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:08,674 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] [2021-12-17 15:07:08,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 15:07:08,675 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:08,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:08,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1324255922, now seen corresponding path program 1 times [2021-12-17 15:07:08,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:08,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555890305] [2021-12-17 15:07:08,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:08,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:08,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-17 15:07:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:08,750 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 15:07:08,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:08,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555890305] [2021-12-17 15:07:08,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555890305] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:08,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:08,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:07:08,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215486658] [2021-12-17 15:07:08,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:08,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:07:08,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:08,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:07:08,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:07:08,756 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 15:07:08,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:08,767 INFO L93 Difference]: Finished difference Result 131 states and 169 transitions. [2021-12-17 15:07:08,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:07:08,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 24 [2021-12-17 15:07:08,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:08,769 INFO L225 Difference]: With dead ends: 131 [2021-12-17 15:07:08,769 INFO L226 Difference]: Without dead ends: 74 [2021-12-17 15:07:08,770 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 15:07:08,771 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 13 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 171 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 15:07:08,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 171 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:07:08,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-12-17 15:07:08,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-12-17 15:07:08,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 65 states have internal predecessors, (77), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-17 15:07:08,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 95 transitions. [2021-12-17 15:07:08,783 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 95 transitions. Word has length 24 [2021-12-17 15:07:08,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:08,784 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 95 transitions. [2021-12-17 15:07:08,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 15:07:08,784 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2021-12-17 15:07:08,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-17 15:07:08,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:08,785 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] [2021-12-17 15:07:08,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 15:07:08,785 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:08,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:08,786 INFO L85 PathProgramCache]: Analyzing trace with hash -398467318, now seen corresponding path program 1 times [2021-12-17 15:07:08,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:08,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615660372] [2021-12-17 15:07:08,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:08,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:08,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-17 15:07:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:08,863 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 15:07:08,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:08,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615660372] [2021-12-17 15:07:08,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615660372] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:08,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:08,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:07:08,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676100603] [2021-12-17 15:07:08,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:08,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:07:08,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:08,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:07:08,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:07:08,867 INFO L87 Difference]: Start difference. First operand 74 states and 95 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 15:07:08,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:08,933 INFO L93 Difference]: Finished difference Result 141 states and 184 transitions. [2021-12-17 15:07:08,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:07:08,934 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 29 [2021-12-17 15:07:08,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:08,935 INFO L225 Difference]: With dead ends: 141 [2021-12-17 15:07:08,935 INFO L226 Difference]: Without dead ends: 74 [2021-12-17 15:07:08,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-17 15:07:08,937 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 120 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:08,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 200 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:07:08,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-12-17 15:07:08,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-12-17 15:07:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 65 states have internal predecessors, (76), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-17 15:07:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions. [2021-12-17 15:07:08,945 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 29 [2021-12-17 15:07:08,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:08,945 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions. [2021-12-17 15:07:08,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 15:07:08,945 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2021-12-17 15:07:08,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-17 15:07:08,946 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:08,947 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] [2021-12-17 15:07:08,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 15:07:08,947 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:08,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:08,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1454809844, now seen corresponding path program 1 times [2021-12-17 15:07:08,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:08,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113804113] [2021-12-17 15:07:08,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:08,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:08,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-17 15:07:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:09,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:07:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:09,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:07:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:09,027 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 15:07:09,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:09,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113804113] [2021-12-17 15:07:09,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113804113] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:09,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:09,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 15:07:09,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9285037] [2021-12-17 15:07:09,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:09,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:07:09,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:09,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:07:09,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 15:07:09,030 INFO L87 Difference]: Start difference. First operand 74 states and 94 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 3 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 15:07:09,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:09,200 INFO L93 Difference]: Finished difference Result 214 states and 271 transitions. [2021-12-17 15:07:09,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 15:07:09,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 3 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 39 [2021-12-17 15:07:09,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:09,201 INFO L225 Difference]: With dead ends: 214 [2021-12-17 15:07:09,201 INFO L226 Difference]: Without dead ends: 147 [2021-12-17 15:07:09,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-17 15:07:09,203 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 167 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:09,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 287 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:07:09,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-12-17 15:07:09,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2021-12-17 15:07:09,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 109 states have (on average 1.2568807339449541) internal successors, (137), 117 states have internal predecessors, (137), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2021-12-17 15:07:09,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 172 transitions. [2021-12-17 15:07:09,224 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 172 transitions. Word has length 39 [2021-12-17 15:07:09,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:09,224 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 172 transitions. [2021-12-17 15:07:09,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 3 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 15:07:09,225 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 172 transitions. [2021-12-17 15:07:09,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-17 15:07:09,230 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:09,230 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] [2021-12-17 15:07:09,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 15:07:09,231 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:09,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:09,231 INFO L85 PathProgramCache]: Analyzing trace with hash 2113308012, now seen corresponding path program 1 times [2021-12-17 15:07:09,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:09,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284691189] [2021-12-17 15:07:09,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:09,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:09,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-17 15:07:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:09,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:07:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:09,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:07:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:09,353 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 15:07:09,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:09,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284691189] [2021-12-17 15:07:09,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284691189] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:09,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:09,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:07:09,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247722267] [2021-12-17 15:07:09,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:09,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:07:09,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:09,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:07:09,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:07:09,356 INFO L87 Difference]: Start difference. First operand 141 states and 172 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:07:09,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:09,579 INFO L93 Difference]: Finished difference Result 413 states and 514 transitions. [2021-12-17 15:07:09,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 15:07:09,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2021-12-17 15:07:09,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:09,588 INFO L225 Difference]: With dead ends: 413 [2021-12-17 15:07:09,588 INFO L226 Difference]: Without dead ends: 279 [2021-12-17 15:07:09,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-12-17 15:07:09,597 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 152 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:09,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 433 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:07:09,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-12-17 15:07:09,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 265. [2021-12-17 15:07:09,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 202 states have (on average 1.2277227722772277) internal successors, (248), 217 states have internal predecessors, (248), 30 states have call successors, (30), 26 states have call predecessors, (30), 32 states have return successors, (42), 32 states have call predecessors, (42), 30 states have call successors, (42) [2021-12-17 15:07:09,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 320 transitions. [2021-12-17 15:07:09,641 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 320 transitions. Word has length 45 [2021-12-17 15:07:09,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:09,643 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 320 transitions. [2021-12-17 15:07:09,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:07:09,643 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 320 transitions. [2021-12-17 15:07:09,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-17 15:07:09,645 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:09,645 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] [2021-12-17 15:07:09,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 15:07:09,645 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:09,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:09,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1160176424, now seen corresponding path program 1 times [2021-12-17 15:07:09,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:09,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692700590] [2021-12-17 15:07:09,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:09,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:09,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 15:07:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:09,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:07:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:09,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:07:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:09,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:07:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:09,740 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 15:07:09,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:09,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692700590] [2021-12-17 15:07:09,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692700590] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:09,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:09,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:07:09,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599374387] [2021-12-17 15:07:09,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:09,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:07:09,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:09,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:07:09,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:07:09,742 INFO L87 Difference]: Start difference. First operand 265 states and 320 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-17 15:07:10,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:10,003 INFO L93 Difference]: Finished difference Result 281 states and 336 transitions. [2021-12-17 15:07:10,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 15:07:10,004 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 49 [2021-12-17 15:07:10,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:10,005 INFO L225 Difference]: With dead ends: 281 [2021-12-17 15:07:10,005 INFO L226 Difference]: Without dead ends: 279 [2021-12-17 15:07:10,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2021-12-17 15:07:10,006 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 169 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:10,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 251 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:07:10,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-12-17 15:07:10,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 265. [2021-12-17 15:07:10,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 202 states have (on average 1.2178217821782178) internal successors, (246), 217 states have internal predecessors, (246), 30 states have call successors, (30), 26 states have call predecessors, (30), 32 states have return successors, (42), 32 states have call predecessors, (42), 30 states have call successors, (42) [2021-12-17 15:07:10,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 318 transitions. [2021-12-17 15:07:10,025 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 318 transitions. Word has length 49 [2021-12-17 15:07:10,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:10,025 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 318 transitions. [2021-12-17 15:07:10,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-17 15:07:10,025 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 318 transitions. [2021-12-17 15:07:10,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-17 15:07:10,026 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:10,026 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:10,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 15:07:10,027 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:10,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:10,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1517229435, now seen corresponding path program 1 times [2021-12-17 15:07:10,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:10,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475911526] [2021-12-17 15:07:10,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:10,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 15:07:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:07:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:07:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-17 15:07:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 15:07:10,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:10,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475911526] [2021-12-17 15:07:10,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475911526] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:10,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:10,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:07:10,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399104755] [2021-12-17 15:07:10,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:10,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:07:10,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:10,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:07:10,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:07:10,112 INFO L87 Difference]: Start difference. First operand 265 states and 318 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-17 15:07:10,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:10,305 INFO L93 Difference]: Finished difference Result 541 states and 662 transitions. [2021-12-17 15:07:10,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:07:10,305 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2021-12-17 15:07:10,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:10,307 INFO L225 Difference]: With dead ends: 541 [2021-12-17 15:07:10,307 INFO L226 Difference]: Without dead ends: 283 [2021-12-17 15:07:10,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 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 15:07:10,308 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 125 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:10,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 229 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:07:10,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-12-17 15:07:10,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 271. [2021-12-17 15:07:10,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 208 states have (on average 1.2115384615384615) internal successors, (252), 223 states have internal predecessors, (252), 30 states have call successors, (30), 26 states have call predecessors, (30), 32 states have return successors, (42), 32 states have call predecessors, (42), 30 states have call successors, (42) [2021-12-17 15:07:10,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 324 transitions. [2021-12-17 15:07:10,323 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 324 transitions. Word has length 55 [2021-12-17 15:07:10,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:10,323 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 324 transitions. [2021-12-17 15:07:10,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-17 15:07:10,323 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 324 transitions. [2021-12-17 15:07:10,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-17 15:07:10,324 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:10,324 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:10,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 15:07:10,324 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:10,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:10,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1455189821, now seen corresponding path program 1 times [2021-12-17 15:07:10,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:10,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960066277] [2021-12-17 15:07:10,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:10,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 15:07:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:07:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:07:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-17 15:07:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,368 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 15:07:10,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:10,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960066277] [2021-12-17 15:07:10,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960066277] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:10,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:10,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:07:10,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463276182] [2021-12-17 15:07:10,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:10,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:07:10,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:10,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:07:10,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:07:10,370 INFO L87 Difference]: Start difference. First operand 271 states and 324 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-17 15:07:10,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:10,521 INFO L93 Difference]: Finished difference Result 553 states and 674 transitions. [2021-12-17 15:07:10,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 15:07:10,522 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2021-12-17 15:07:10,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:10,523 INFO L225 Difference]: With dead ends: 553 [2021-12-17 15:07:10,523 INFO L226 Difference]: Without dead ends: 289 [2021-12-17 15:07:10,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:07:10,524 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 128 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:10,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 196 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:07:10,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-12-17 15:07:10,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 275. [2021-12-17 15:07:10,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 212 states have (on average 1.2075471698113207) internal successors, (256), 227 states have internal predecessors, (256), 30 states have call successors, (30), 26 states have call predecessors, (30), 32 states have return successors, (42), 32 states have call predecessors, (42), 30 states have call successors, (42) [2021-12-17 15:07:10,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 328 transitions. [2021-12-17 15:07:10,534 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 328 transitions. Word has length 55 [2021-12-17 15:07:10,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:10,535 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 328 transitions. [2021-12-17 15:07:10,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-17 15:07:10,535 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 328 transitions. [2021-12-17 15:07:10,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-17 15:07:10,535 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:10,536 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:10,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 15:07:10,536 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:10,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:10,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1964662911, now seen corresponding path program 1 times [2021-12-17 15:07:10,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:10,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112423670] [2021-12-17 15:07:10,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:10,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 15:07:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:07:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:07:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-17 15:07:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 15:07:10,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:10,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112423670] [2021-12-17 15:07:10,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112423670] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:10,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:10,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:07:10,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59495725] [2021-12-17 15:07:10,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:10,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:07:10,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:10,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:07:10,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:07:10,581 INFO L87 Difference]: Start difference. First operand 275 states and 328 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-17 15:07:10,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:10,822 INFO L93 Difference]: Finished difference Result 771 states and 970 transitions. [2021-12-17 15:07:10,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 15:07:10,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2021-12-17 15:07:10,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:10,824 INFO L225 Difference]: With dead ends: 771 [2021-12-17 15:07:10,825 INFO L226 Difference]: Without dead ends: 503 [2021-12-17 15:07:10,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 15:07:10,826 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 278 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:10,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 250 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:07:10,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-12-17 15:07:10,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 501. [2021-12-17 15:07:10,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 382 states have (on average 1.1963350785340314) internal successors, (457), 405 states have internal predecessors, (457), 60 states have call successors, (60), 56 states have call predecessors, (60), 58 states have return successors, (95), 60 states have call predecessors, (95), 60 states have call successors, (95) [2021-12-17 15:07:10,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 612 transitions. [2021-12-17 15:07:10,844 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 612 transitions. Word has length 55 [2021-12-17 15:07:10,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:10,844 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 612 transitions. [2021-12-17 15:07:10,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-17 15:07:10,844 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 612 transitions. [2021-12-17 15:07:10,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-17 15:07:10,845 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:10,845 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:10,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 15:07:10,846 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:10,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:10,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1847980005, now seen corresponding path program 1 times [2021-12-17 15:07:10,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:10,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028080235] [2021-12-17 15:07:10,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:10,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:07:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-17 15:07:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 15:07:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:07:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-17 15:07:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:10,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 15:07:10,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:10,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028080235] [2021-12-17 15:07:10,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028080235] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:07:10,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575444648] [2021-12-17 15:07:10,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:10,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:07:10,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:07:10,945 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 15:07:10,946 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 15:07:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:11,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 15:07:11,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:07:11,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:11,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:07:11,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575444648] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:11,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:07:11,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 18 [2021-12-17 15:07:11,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122119036] [2021-12-17 15:07:11,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:11,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:07:11,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:11,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:07:11,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-12-17 15:07:11,252 INFO L87 Difference]: Start difference. First operand 501 states and 612 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-17 15:07:11,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:11,340 INFO L93 Difference]: Finished difference Result 974 states and 1195 transitions. [2021-12-17 15:07:11,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 15:07:11,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 59 [2021-12-17 15:07:11,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:11,342 INFO L225 Difference]: With dead ends: 974 [2021-12-17 15:07:11,342 INFO L226 Difference]: Without dead ends: 480 [2021-12-17 15:07:11,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-12-17 15:07:11,344 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 68 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:11,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 493 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:07:11,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2021-12-17 15:07:11,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 478. [2021-12-17 15:07:11,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 364 states have (on average 1.1813186813186813) internal successors, (430), 386 states have internal predecessors, (430), 58 states have call successors, (58), 54 states have call predecessors, (58), 55 states have return successors, (82), 57 states have call predecessors, (82), 58 states have call successors, (82) [2021-12-17 15:07:11,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 570 transitions. [2021-12-17 15:07:11,360 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 570 transitions. Word has length 59 [2021-12-17 15:07:11,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:11,361 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 570 transitions. [2021-12-17 15:07:11,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-17 15:07:11,361 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 570 transitions. [2021-12-17 15:07:11,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-17 15:07:11,362 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:11,362 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:11,398 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 15:07:11,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-17 15:07:11,580 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:11,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:11,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1135855989, now seen corresponding path program 1 times [2021-12-17 15:07:11,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:11,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209846180] [2021-12-17 15:07:11,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:11,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:11,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:07:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:11,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-17 15:07:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:11,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:07:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:11,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:07:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:11,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:07:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:11,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 15:07:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:11,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 15:07:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:11,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:07:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:11,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:07:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:11,728 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-17 15:07:11,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:11,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209846180] [2021-12-17 15:07:11,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209846180] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:07:11,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325745652] [2021-12-17 15:07:11,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:11,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:07:11,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:07:11,744 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 15:07:11,775 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 15:07:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:11,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-17 15:07:11,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:07:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 15:07:12,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:07:12,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325745652] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:12,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:07:12,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2021-12-17 15:07:12,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532163623] [2021-12-17 15:07:12,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:12,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:07:12,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:12,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:07:12,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:07:12,012 INFO L87 Difference]: Start difference. First operand 478 states and 570 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-17 15:07:12,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:12,110 INFO L93 Difference]: Finished difference Result 1183 states and 1469 transitions. [2021-12-17 15:07:12,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 15:07:12,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 98 [2021-12-17 15:07:12,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:12,113 INFO L225 Difference]: With dead ends: 1183 [2021-12-17 15:07:12,113 INFO L226 Difference]: Without dead ends: 804 [2021-12-17 15:07:12,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 112 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:07:12,115 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 167 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:12,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 640 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:07:12,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2021-12-17 15:07:12,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 692. [2021-12-17 15:07:12,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 526 states have (on average 1.182509505703422) internal successors, (622), 558 states have internal predecessors, (622), 84 states have call successors, (84), 78 states have call predecessors, (84), 81 states have return successors, (125), 79 states have call predecessors, (125), 84 states have call successors, (125) [2021-12-17 15:07:12,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 831 transitions. [2021-12-17 15:07:12,140 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 831 transitions. Word has length 98 [2021-12-17 15:07:12,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:12,140 INFO L470 AbstractCegarLoop]: Abstraction has 692 states and 831 transitions. [2021-12-17 15:07:12,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-17 15:07:12,140 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 831 transitions. [2021-12-17 15:07:12,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-17 15:07:12,141 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:12,141 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:12,175 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 15:07:12,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-17 15:07:12,358 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:12,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:12,359 INFO L85 PathProgramCache]: Analyzing trace with hash -669582345, now seen corresponding path program 1 times [2021-12-17 15:07:12,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:12,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986973867] [2021-12-17 15:07:12,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:12,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:07:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-17 15:07:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:07:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:07:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:07:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 15:07:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 15:07:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:07:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:07:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,462 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-17 15:07:12,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:12,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986973867] [2021-12-17 15:07:12,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986973867] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:07:12,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571142347] [2021-12-17 15:07:12,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:12,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:07:12,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:07:12,464 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:07:12,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 15:07:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-17 15:07:12,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:07:12,670 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-17 15:07:12,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:07:12,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571142347] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:12,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:07:12,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-17 15:07:12,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938454873] [2021-12-17 15:07:12,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:12,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:07:12,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:12,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:07:12,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:07:12,672 INFO L87 Difference]: Start difference. First operand 692 states and 831 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-17 15:07:12,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:12,720 INFO L93 Difference]: Finished difference Result 979 states and 1173 transitions. [2021-12-17 15:07:12,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:07:12,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 98 [2021-12-17 15:07:12,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:12,721 INFO L225 Difference]: With dead ends: 979 [2021-12-17 15:07:12,721 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 15:07:12,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 110 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-12-17 15:07:12,722 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 36 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:12,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 335 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:07:12,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 15:07:12,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 15:07:12,723 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 15:07:12,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 15:07:12,723 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2021-12-17 15:07:12,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:12,723 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 15:07:12,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-17 15:07:12,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 15:07:12,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 15:07:12,726 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 15:07:12,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 15:07:12,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:07:12,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 15:07:15,817 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 304 310) no Hoare annotation was computed. [2021-12-17 15:07:15,817 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 304 310) the Hoare annotation is: true [2021-12-17 15:07:15,817 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 93 104) no Hoare annotation was computed. [2021-12-17 15:07:15,817 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 93 104) the Hoare annotation is: (let ((.cse2 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (= ~methaneLevelCritical~0 |old(~methaneLevelCritical~0)|) (not (<= 1 ~waterLevel~0)) (not (<= 1 |old(~methaneLevelCritical~0)|)) .cse1) (or .cse2 .cse3 .cse1 (not (<= 2 ~waterLevel~0))) (or .cse2 (not (= ~waterLevel~0 1)) .cse0 .cse3 .cse1))) [2021-12-17 15:07:15,817 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 93 104) no Hoare annotation was computed. [2021-12-17 15:07:15,817 INFO L858 garLoopResultBuilder]: For program point L481(lines 481 485) no Hoare annotation was computed. [2021-12-17 15:07:15,818 INFO L858 garLoopResultBuilder]: For program point L481-2(lines 481 485) no Hoare annotation was computed. [2021-12-17 15:07:15,818 INFO L854 garLoopResultBuilder]: At program point L506(line 506) the Hoare annotation is: (let ((.cse12 (= ~methaneLevelCritical~0 0)) (.cse13 (<= 2 ~waterLevel~0)) (.cse5 (= ~pumpRunning~0 0))) (let ((.cse4 (not (<= 1 |old(~waterLevel~0)|))) (.cse9 (not (= |old(~waterLevel~0)| 1))) (.cse10 (= ~waterLevel~0 1)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse8 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse13 .cse5)) (.cse7 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (and .cse12 .cse13)) (.cse11 (and (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= |timeShift_isLowWaterLevel_~tmp~5#1| 0) (<= 0 |timeShift_isLowWaterSensorDry_#res#1|) (<= |timeShift_isLowWaterSensorDry_#res#1| 0) (< 0 (+ |timeShift_isLowWaterLevel_~tmp~5#1| 1)) (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 ~waterLevel~0) .cse5)) (.cse2 (not .cse12)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse1 .cse3 .cse4 .cse5) (or .cse7 .cse6 .cse1 .cse8 .cse3) (or .cse9 .cse10 .cse6 .cse1 .cse3) (or .cse7 .cse0 .cse1 .cse2 .cse3) (or .cse9 .cse10 .cse1 .cse2 .cse3) (or .cse7 .cse6 .cse11 .cse8 .cse3) (or .cse7 .cse0 .cse11 .cse2 .cse3)))) [2021-12-17 15:07:15,818 INFO L858 garLoopResultBuilder]: For program point L506-1(line 506) no Hoare annotation was computed. [2021-12-17 15:07:15,818 INFO L858 garLoopResultBuilder]: For program point L73(lines 73 77) no Hoare annotation was computed. [2021-12-17 15:07:15,818 INFO L854 garLoopResultBuilder]: At program point L73-2(lines 69 80) the Hoare annotation is: (let ((.cse0 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~systemActive~0 1))) (.cse6 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse3 .cse6) (or .cse0 .cse2 .cse5 .cse3) (or .cse1 .cse4 .cse3 .cse6))) [2021-12-17 15:07:15,818 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 280 303) no Hoare annotation was computed. [2021-12-17 15:07:15,818 INFO L858 garLoopResultBuilder]: For program point L284-1(lines 283 302) no Hoare annotation was computed. [2021-12-17 15:07:15,818 INFO L858 garLoopResultBuilder]: For program point L346(lines 346 354) no Hoare annotation was computed. [2021-12-17 15:07:15,818 INFO L858 garLoopResultBuilder]: For program point L342(lines 342 359) no Hoare annotation was computed. [2021-12-17 15:07:15,818 INFO L854 garLoopResultBuilder]: At program point L487(lines 472 490) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse2 (and (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= |timeShift_isLowWaterLevel_~tmp~5#1| 0) (<= 0 |timeShift_isLowWaterSensorDry_#res#1|) (< 0 (+ |timeShift_isLowWaterLevel_~tmp~5#1| 1)) (<= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse3 .cse6) (or .cse1 .cse4 .cse3 .cse6) (or .cse0 .cse5 .cse2 .cse3))) [2021-12-17 15:07:15,818 INFO L854 garLoopResultBuilder]: At program point L165(lines 160 168) the Hoare annotation is: (let ((.cse0 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (and (<= 0 |timeShift_isLowWaterSensorDry_#res#1|) (<= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~systemActive~0 1))) (.cse6 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse2 .cse3) (or .cse5 .cse4 .cse2 .cse6) (or .cse1 .cse5 .cse2 .cse6))) [2021-12-17 15:07:15,818 INFO L858 garLoopResultBuilder]: For program point L512(lines 512 518) no Hoare annotation was computed. [2021-12-17 15:07:15,818 INFO L854 garLoopResultBuilder]: At program point L413(lines 408 416) the Hoare annotation is: (let ((.cse0 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse1 (= ~pumpRunning~0 0))) (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (<= 1 |old(~waterLevel~0)|))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse8 (and .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 2 ~waterLevel~0) .cse1)) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= ~systemActive~0 1)))) (and (or (and .cse0 .cse1) .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse4) (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1) .cse2 .cse3 .cse4) (or .cse6 .cse8 .cse2 .cse3 .cse4) (or .cse3 .cse7 .cse4 .cse5) (or .cse6 .cse8 .cse2 (and (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= |timeShift_isLowWaterLevel_~tmp~5#1| 0) (<= 0 |timeShift_isLowWaterSensorDry_#res#1|) .cse0 (<= |timeShift_isLowWaterSensorDry_#res#1| 0) (< 0 (+ |timeShift_isLowWaterLevel_~tmp~5#1| 1)) (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 ~waterLevel~0) .cse1) .cse4)))) [2021-12-17 15:07:15,819 INFO L858 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2021-12-17 15:07:15,819 INFO L854 garLoopResultBuilder]: At program point L508-1(lines 500 524) the Hoare annotation is: (let ((.cse20 (= ~methaneLevelCritical~0 0)) (.cse10 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~6#1| 0)) (.cse16 (<= 2 ~waterLevel~0))) (let ((.cse3 (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|)) (.cse4 (<= |timeShift_isLowWaterLevel_~tmp~5#1| 0)) (.cse5 (<= 0 |timeShift_isLowWaterSensorDry_#res#1|)) (.cse7 (< 0 (+ |timeShift_isLowWaterLevel_~tmp~5#1| 1))) (.cse6 (<= |timeShift_isLowWaterSensorDry_#res#1| 0)) (.cse8 (<= 1 |timeShift_processEnvironment_~tmp~2#1|)) (.cse9 (<= 1 |timeShift_isLowWaterLevel_#res#1|)) (.cse11 (<= 1 ~waterLevel~0)) (.cse0 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (and .cse20 .cse10 .cse16)) (.cse17 (not (= |old(~waterLevel~0)| 1))) (.cse18 (= ~waterLevel~0 1)) (.cse12 (= ~pumpRunning~0 0)) (.cse2 (not .cse20)) (.cse14 (not (<= 1 ~methaneLevelCritical~0))) (.cse15 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse19 (not (= |old(~pumpRunning~0)| 0))) (.cse13 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) .cse13) (or .cse0 .cse14 (and .cse3 .cse4 (not (= 0 |old(~pumpRunning~0)|)) .cse5 .cse7 .cse6 .cse8 .cse9 .cse11 .cse12) (and .cse15 .cse16 .cse12) .cse13) (or .cse17 .cse18 .cse14 .cse19 .cse13) (or .cse0 .cse1 .cse19 .cse2 .cse13) (or .cse17 (and .cse18 .cse10 .cse12) .cse19 .cse2 .cse13) (or .cse14 .cse15 .cse19 .cse13 (not (<= 1 |old(~waterLevel~0)|)))))) [2021-12-17 15:07:15,819 INFO L858 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2021-12-17 15:07:15,819 INFO L854 garLoopResultBuilder]: At program point L352(line 352) the Hoare annotation is: (let ((.cse0 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~systemActive~0 1))) (.cse5 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2) (or .cse4 .cse3 .cse2 .cse5) (or .cse1 .cse4 .cse2 .cse5))) [2021-12-17 15:07:15,819 INFO L854 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (let ((.cse0 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~systemActive~0 1))) (.cse5 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2) (or .cse4 .cse3 .cse2 .cse5) (or .cse1 .cse4 .cse2 .cse5))) [2021-12-17 15:07:15,819 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 280 303) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= |old(~waterLevel~0)| 1))) (.cse8 (= ~waterLevel~0 1)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 2 ~waterLevel~0))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse3 (not (<= 1 |old(~waterLevel~0)|)) .cse6) (or .cse7 .cse5 (and .cse8 .cse6) .cse2 .cse3) (or .cse7 .cse8 .cse4 .cse5 .cse3) (or .cse0 .cse1 .cse4 .cse3))) [2021-12-17 15:07:15,819 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 280 303) no Hoare annotation was computed. [2021-12-17 15:07:15,819 INFO L854 garLoopResultBuilder]: At program point L394(lines 389 396) the Hoare annotation is: (let ((.cse0 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (and (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= |timeShift_isLowWaterLevel_~tmp~5#1| 0) (<= 0 |timeShift_isLowWaterSensorDry_#res#1|) (<= |timeShift_isLowWaterSensorDry_#res#1| 0) (< 0 (+ |timeShift_isLowWaterLevel_~tmp~5#1| 1)) (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 ~waterLevel~0) (= ~pumpRunning~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~systemActive~0 1))) (.cse6 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse4 .cse3) (or .cse5 .cse4 .cse3 .cse6) (or .cse1 .cse5 .cse3 .cse6))) [2021-12-17 15:07:15,819 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-12-17 15:07:15,819 INFO L854 garLoopResultBuilder]: At program point L357(line 357) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0))) (let ((.cse0 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 2 ~waterLevel~0) .cse5)) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= |old(~waterLevel~0)| 1))) (.cse7 (= ~waterLevel~0 1)) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse3 (not (<= 1 |old(~waterLevel~0)|)) .cse5) (or .cse6 .cse4 (and .cse7 .cse5) .cse8 .cse3) (or .cse0 .cse2 .cse8 .cse3) (or .cse6 .cse7 .cse1 .cse4 .cse3)))) [2021-12-17 15:07:15,820 INFO L854 garLoopResultBuilder]: At program point L357-1(lines 338 362) the Hoare annotation is: (let ((.cse12 (= ~methaneLevelCritical~0 0)) (.cse13 (<= 2 ~waterLevel~0)) (.cse5 (= ~pumpRunning~0 0))) (let ((.cse4 (not (<= 1 |old(~waterLevel~0)|))) (.cse9 (not (= |old(~waterLevel~0)| 1))) (.cse10 (= ~waterLevel~0 1)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse8 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse13 .cse5)) (.cse7 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (and .cse12 .cse13)) (.cse11 (and (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= |timeShift_isLowWaterLevel_~tmp~5#1| 0) (<= 0 |timeShift_isLowWaterSensorDry_#res#1|) (<= |timeShift_isLowWaterSensorDry_#res#1| 0) (< 0 (+ |timeShift_isLowWaterLevel_~tmp~5#1| 1)) (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 ~waterLevel~0) .cse5)) (.cse2 (not .cse12)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse1 .cse3 .cse4 .cse5) (or .cse7 .cse6 .cse1 .cse8 .cse3) (or .cse9 .cse10 .cse6 .cse1 .cse3) (or .cse7 .cse0 .cse1 .cse2 .cse3) (or .cse9 .cse10 .cse1 .cse2 .cse3) (or .cse7 .cse6 .cse11 .cse8 .cse3) (or .cse7 .cse0 .cse11 .cse2 .cse3)))) [2021-12-17 15:07:15,820 INFO L858 garLoopResultBuilder]: For program point L291-1(lines 291 297) no Hoare annotation was computed. [2021-12-17 15:07:15,820 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-12-17 15:07:15,820 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 172 201) no Hoare annotation was computed. [2021-12-17 15:07:15,820 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 172 201) the Hoare annotation is: true [2021-12-17 15:07:15,820 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 190) no Hoare annotation was computed. [2021-12-17 15:07:15,820 INFO L861 garLoopResultBuilder]: At program point L186-1(lines 186 190) the Hoare annotation is: true [2021-12-17 15:07:15,820 INFO L858 garLoopResultBuilder]: For program point L183(line 183) no Hoare annotation was computed. [2021-12-17 15:07:15,820 INFO L861 garLoopResultBuilder]: At program point L182-2(lines 182 196) the Hoare annotation is: true [2021-12-17 15:07:15,820 INFO L861 garLoopResultBuilder]: At program point L178(line 178) the Hoare annotation is: true [2021-12-17 15:07:15,820 INFO L858 garLoopResultBuilder]: For program point L178-1(line 178) no Hoare annotation was computed. [2021-12-17 15:07:15,820 INFO L861 garLoopResultBuilder]: At program point L197(lines 172 201) the Hoare annotation is: true [2021-12-17 15:07:15,820 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 105 113) the Hoare annotation is: true [2021-12-17 15:07:15,820 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 105 113) no Hoare annotation was computed. [2021-12-17 15:07:15,820 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 105 113) no Hoare annotation was computed. [2021-12-17 15:07:15,820 INFO L858 garLoopResultBuilder]: For program point L258-2(lines 258 265) no Hoare annotation was computed. [2021-12-17 15:07:15,820 INFO L861 garLoopResultBuilder]: At program point L242(lines 235 244) the Hoare annotation is: true [2021-12-17 15:07:15,820 INFO L858 garLoopResultBuilder]: For program point L556(lines 556 562) no Hoare annotation was computed. [2021-12-17 15:07:15,820 INFO L858 garLoopResultBuilder]: For program point L556-1(lines 556 562) no Hoare annotation was computed. [2021-12-17 15:07:15,821 INFO L861 garLoopResultBuilder]: At program point L267(lines 248 270) the Hoare annotation is: true [2021-12-17 15:07:15,821 INFO L854 garLoopResultBuilder]: At program point L581(lines 536 583) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 |ULTIMATE.start_main_~tmp~0#1|)) (.cse2 (= ~systemActive~0 |ULTIMATE.start_valid_product_#res#1|)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse5 (<= 1 ~waterLevel~0)) (.cse4 (= ~systemActive~0 1)) (.cse6 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 2 ~waterLevel~0) .cse4) (and .cse0 .cse1 .cse2 (<= 1 ~methaneLevelCritical~0) .cse5 .cse4 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse4 .cse6))) [2021-12-17 15:07:15,821 INFO L854 garLoopResultBuilder]: At program point L548(line 548) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 |ULTIMATE.start_main_~tmp~0#1|)) (.cse2 (= ~systemActive~0 |ULTIMATE.start_valid_product_#res#1|)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse5 (<= 1 ~waterLevel~0)) (.cse4 (= ~systemActive~0 1)) (.cse6 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 2 ~waterLevel~0) .cse4) (and .cse0 .cse1 .cse2 (<= 1 ~methaneLevelCritical~0) .cse5 .cse4 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse4 .cse6))) [2021-12-17 15:07:15,821 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 15:07:15,821 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 15:07:15,821 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 15:07:15,821 INFO L854 garLoopResultBuilder]: At program point L623(lines 618 626) the Hoare annotation is: (and (= ~systemActive~0 |ULTIMATE.start_valid_product_#res#1|) (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:07:15,821 INFO L854 garLoopResultBuilder]: At program point L615(lines 611 617) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:07:15,821 INFO L854 garLoopResultBuilder]: At program point L231(lines 227 233) the Hoare annotation is: (and (= ~systemActive~0 |ULTIMATE.start_main_~tmp~0#1|) (= ~systemActive~0 |ULTIMATE.start_valid_product_#res#1|) (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:07:15,821 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 15:07:15,821 INFO L858 garLoopResultBuilder]: For program point L574(lines 574 578) no Hoare annotation was computed. [2021-12-17 15:07:15,821 INFO L854 garLoopResultBuilder]: At program point L574-2(lines 566 579) the Hoare annotation is: (let ((.cse4 (<= 2 ~waterLevel~0)) (.cse6 (<= 1 ~methaneLevelCritical~0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 |ULTIMATE.start_main_~tmp~0#1|)) (.cse2 (= ~systemActive~0 |ULTIMATE.start_valid_product_#res#1|)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse7 (<= 1 ~waterLevel~0)) (.cse5 (= ~systemActive~0 1)) (.cse8 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse4 .cse6 .cse5) (and .cse0 .cse1 .cse2 .cse6 .cse7 .cse5 .cse8) (and .cse0 .cse1 .cse2 .cse3 .cse7 .cse5 .cse8))) [2021-12-17 15:07:15,821 INFO L858 garLoopResultBuilder]: For program point L537(lines 536 583) no Hoare annotation was computed. [2021-12-17 15:07:15,821 INFO L858 garLoopResultBuilder]: For program point L566(lines 566 579) no Hoare annotation was computed. [2021-12-17 15:07:15,821 INFO L854 garLoopResultBuilder]: At program point L496(lines 491 498) the Hoare annotation is: (let ((.cse4 (<= 2 ~waterLevel~0)) (.cse6 (<= 1 ~methaneLevelCritical~0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 |ULTIMATE.start_main_~tmp~0#1|)) (.cse2 (= ~systemActive~0 |ULTIMATE.start_valid_product_#res#1|)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse7 (<= 1 ~waterLevel~0)) (.cse5 (= ~systemActive~0 1)) (.cse8 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse4 .cse6 .cse5) (and .cse0 .cse1 .cse2 .cse6 .cse7 .cse5 .cse8) (and .cse0 .cse1 .cse2 .cse3 .cse7 .cse5 .cse8))) [2021-12-17 15:07:15,822 INFO L854 garLoopResultBuilder]: At program point L558(line 558) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 |ULTIMATE.start_main_~tmp~0#1|)) (.cse2 (= ~systemActive~0 |ULTIMATE.start_valid_product_#res#1|)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse5 (<= 1 ~waterLevel~0)) (.cse4 (= ~systemActive~0 1)) (.cse6 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 2 ~waterLevel~0) .cse4) (and .cse0 .cse1 .cse2 (<= 1 ~methaneLevelCritical~0) .cse5 .cse4 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse4 .cse6))) [2021-12-17 15:07:15,822 INFO L861 garLoopResultBuilder]: At program point L587(lines 526 591) the Hoare annotation is: true [2021-12-17 15:07:15,822 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 552) no Hoare annotation was computed. [2021-12-17 15:07:15,822 INFO L858 garLoopResultBuilder]: For program point L546-1(lines 546 552) no Hoare annotation was computed. [2021-12-17 15:07:15,822 INFO L854 garLoopResultBuilder]: At program point L608(lines 604 610) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:07:15,822 INFO L858 garLoopResultBuilder]: For program point L538(lines 538 542) no Hoare annotation was computed. [2021-12-17 15:07:15,822 INFO L854 garLoopResultBuilder]: At program point L584(lines 535 585) the Hoare annotation is: false [2021-12-17 15:07:15,822 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 265) no Hoare annotation was computed. [2021-12-17 15:07:15,822 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 312 336) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= ~pumpRunning~0 0))) (and (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1 .cse2) (or (not (= ~waterLevel~0 1)) .cse0 .cse3 .cse1 .cse2) (or .cse0 .cse3 .cse1 (not (<= 2 ~waterLevel~0)) .cse2))) [2021-12-17 15:07:15,822 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 328) no Hoare annotation was computed. [2021-12-17 15:07:15,822 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 333) no Hoare annotation was computed. [2021-12-17 15:07:15,822 INFO L854 garLoopResultBuilder]: At program point L155(lines 146 159) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0))) (let ((.cse0 (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse5)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~systemActive~0 1))) (.cse4 (<= 2 ~waterLevel~0))) (and (or .cse0 (not (= ~waterLevel~0 1)) .cse1 .cse2 .cse3) (or (and .cse4 .cse5) .cse0 (not (<= 1 ~waterLevel~0)) (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse3) (or .cse1 .cse2 .cse3 (not .cse4) .cse5)))) [2021-12-17 15:07:15,822 INFO L854 garLoopResultBuilder]: At program point L368(lines 363 370) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1) (or (not (= ~waterLevel~0 1)) .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2021-12-17 15:07:15,822 INFO L854 garLoopResultBuilder]: At program point L331(line 331) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2021-12-17 15:07:15,822 INFO L858 garLoopResultBuilder]: For program point L331-1(lines 312 336) no Hoare annotation was computed. [2021-12-17 15:07:15,822 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 312 336) no Hoare annotation was computed. [2021-12-17 15:07:15,823 INFO L858 garLoopResultBuilder]: For program point L379(lines 379 385) no Hoare annotation was computed. [2021-12-17 15:07:15,823 INFO L854 garLoopResultBuilder]: At program point L379-2(lines 372 388) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~waterLevel~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (<= 2 ~waterLevel~0)) (.cse3 (not (= ~systemActive~0 1)))) (and (or (and (<= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_isMethaneAlarm_#res#1|) .cse0 (= ~pumpRunning~0 0) (<= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_~tmp~3#1|)) .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse1 .cse2 .cse0 (not (= ~methaneLevelCritical~0 0)) .cse3))) [2021-12-17 15:07:15,823 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 156) no Hoare annotation was computed. [2021-12-17 15:07:15,823 INFO L854 garLoopResultBuilder]: At program point L468(lines 453 471) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0))) (let ((.cse0 (and (<= 2 ~waterLevel~0) .cse5)) (.cse1 (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) .cse5)) (.cse2 (not (<= 1 ~waterLevel~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse4) (or .cse0 .cse1 .cse2 (not (<= 1 ~methaneLevelCritical~0)) .cse3 .cse4)))) [2021-12-17 15:07:15,823 INFO L854 garLoopResultBuilder]: At program point L404(lines 397 407) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or (and (<= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_isMethaneAlarm_#res#1|) .cse3) .cse0 .cse1 .cse2 (not .cse4)) (or (and .cse4 .cse3) (not (<= 1 ~waterLevel~0)) .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2021-12-17 15:07:15,823 INFO L854 garLoopResultBuilder]: At program point L402(line 402) the Hoare annotation is: (let ((.cse0 (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0))) (.cse1 (not (<= 1 ~waterLevel~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3))) [2021-12-17 15:07:15,823 INFO L858 garLoopResultBuilder]: For program point L402-1(line 402) no Hoare annotation was computed. [2021-12-17 15:07:15,823 INFO L858 garLoopResultBuilder]: For program point L462(lines 462 466) no Hoare annotation was computed. [2021-12-17 15:07:15,823 INFO L858 garLoopResultBuilder]: For program point L462-2(lines 462 466) no Hoare annotation was computed. [2021-12-17 15:07:15,823 INFO L854 garLoopResultBuilder]: At program point L326(line 326) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0)) (.cse6 (= ~methaneLevelCritical~0 0))) (let ((.cse1 (not .cse6)) (.cse2 (and .cse6 .cse4 .cse5)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3) (or (and .cse4 .cse5) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse3)))) [2021-12-17 15:07:15,823 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 81 92) no Hoare annotation was computed. [2021-12-17 15:07:15,823 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 81 92) no Hoare annotation was computed. [2021-12-17 15:07:15,823 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 81 92) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~waterLevel~0)| 1))) (.cse1 (= ~waterLevel~0 1)) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (not (= ~pumpRunning~0 0))) (.cse7 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (<= 2 ~waterLevel~0)) (.cse4 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse7 .cse4) (or .cse5 .cse2 .cse7 .cse6 .cse4))) [2021-12-17 15:07:15,825 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:15,826 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 15:07:15,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:07:15 BoogieIcfgContainer [2021-12-17 15:07:15,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 15:07:15,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 15:07:15,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 15:07:15,876 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 15:07:15,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:07:08" (3/4) ... [2021-12-17 15:07:15,879 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 15:07:15,882 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-17 15:07:15,883 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-17 15:07:15,883 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-17 15:07:15,883 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-17 15:07:15,883 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-12-17 15:07:15,883 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:07:15,883 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-17 15:07:15,888 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2021-12-17 15:07:15,888 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-17 15:07:15,889 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 15:07:15,889 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 15:07:15,889 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 15:07:15,890 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:07:15,890 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:07:15,906 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((systemActive == \result && waterLevel == 1) && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 [2021-12-17 15:07:15,906 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((systemActive == tmp && systemActive == \result) && waterLevel == 1) && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 [2021-12-17 15:07:15,906 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && systemActive == tmp) && systemActive == \result) && methaneLevelCritical == 0) && 2 <= waterLevel) && systemActive == 1) || ((((((splverifierCounter == 0 && systemActive == tmp) && systemActive == \result) && 1 <= methaneLevelCritical) && 1 <= waterLevel) && systemActive == 1) && pumpRunning == 0)) || ((((((splverifierCounter == 0 && systemActive == tmp) && systemActive == \result) && methaneLevelCritical == 0) && 1 <= waterLevel) && systemActive == 1) && pumpRunning == 0) [2021-12-17 15:07:15,907 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(systemActive == 1)) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(2 <= \old(waterLevel)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && (((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-17 15:07:15,908 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((methaneLevelCritical == 0 && 2 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) || pumpRunning == 0) && ((((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) || pumpRunning == 0)) && ((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || ((pumpRunning == \old(pumpRunning) && 2 <= waterLevel) && pumpRunning == 0)) || !(systemActive == 1))) && ((((!(\old(waterLevel) == 1) || waterLevel == 1) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && ((((!(2 <= \old(waterLevel)) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && ((((!(\old(waterLevel) == 1) || waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && ((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || ((((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && \result <= 0) && 0 < tmp + 1) && 1 <= tmp) && 1 <= \result) && 1 <= waterLevel) && pumpRunning == 0)) || ((pumpRunning == \old(pumpRunning) && 2 <= waterLevel) && pumpRunning == 0)) || !(systemActive == 1))) && ((((!(2 <= \old(waterLevel)) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || ((((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && \result <= 0) && 0 < tmp + 1) && 1 <= tmp) && 1 <= \result) && 1 <= waterLevel) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) [2021-12-17 15:07:15,909 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(2 <= \old(waterLevel)) || ((methaneLevelCritical == 0 && tmp == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || (((((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && \result <= 0) && 0 < tmp + 1) && 1 <= tmp) && 1 <= \result) && tmp == 0) && 1 <= waterLevel) && pumpRunning == 0)) || !(systemActive == 1)) && ((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || (((((((((1 <= tmp___0 && tmp <= 0) && !(0 == \old(pumpRunning))) && 0 <= \result) && 0 < tmp + 1) && \result <= 0) && 1 <= tmp) && 1 <= \result) && 1 <= waterLevel) && pumpRunning == 0)) || ((pumpRunning == \old(pumpRunning) && 2 <= waterLevel) && pumpRunning == 0)) || !(systemActive == 1))) && ((((!(\old(waterLevel) == 1) || waterLevel == 1) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && ((((!(2 <= \old(waterLevel)) || ((methaneLevelCritical == 0 && tmp == 0) && 2 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && ((((!(\old(waterLevel) == 1) || ((waterLevel == 1 && tmp == 0) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && ((((!(1 <= methaneLevelCritical) || pumpRunning == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-17 15:07:15,909 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && systemActive == tmp) && systemActive == \result) && methaneLevelCritical == 0) && 2 <= waterLevel) && systemActive == 1) || (((((splverifierCounter == 0 && systemActive == tmp) && systemActive == \result) && 2 <= waterLevel) && 1 <= methaneLevelCritical) && systemActive == 1)) || ((((((splverifierCounter == 0 && systemActive == tmp) && systemActive == \result) && 1 <= methaneLevelCritical) && 1 <= waterLevel) && systemActive == 1) && pumpRunning == 0)) || ((((((splverifierCounter == 0 && systemActive == tmp) && systemActive == \result) && methaneLevelCritical == 0) && 1 <= waterLevel) && systemActive == 1) && pumpRunning == 0) [2021-12-17 15:07:15,909 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(waterLevel == 1) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && (((((methaneLevelCritical <= \result && pumpRunning == 0) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(2 <= waterLevel))) && (((((2 <= waterLevel && pumpRunning == 0) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) [2021-12-17 15:07:15,909 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\result == 0 && pumpRunning == 0) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) && ((!(2 <= \old(waterLevel)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && ((((!(\old(waterLevel) == 1) || waterLevel == 1) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && ((((!(2 <= \old(waterLevel)) || (((\result == 0 && pumpRunning == \old(pumpRunning)) && 2 <= waterLevel) && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && ((((!(2 <= \old(waterLevel)) || (((\result == 0 && pumpRunning == \old(pumpRunning)) && 2 <= waterLevel) && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || (((((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && \result == 0) && \result <= 0) && 0 < tmp + 1) && 1 <= tmp) && 1 <= \result) && 1 <= waterLevel) && pumpRunning == 0)) || !(systemActive == 1)) [2021-12-17 15:07:15,909 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || !(systemActive == 1)) || (((0 <= \result && \result <= 0) && pumpRunning == \old(pumpRunning)) && 1 <= waterLevel)) && (((!(2 <= \old(waterLevel)) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || (((0 <= \result && \result <= 0) && pumpRunning == \old(pumpRunning)) && 1 <= waterLevel))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-17 15:07:15,910 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((methaneLevelCritical <= \result && 2 <= waterLevel) && pumpRunning == 0) && methaneLevelCritical <= tmp) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && ((((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) [2021-12-17 15:07:15,910 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 <= \result && pumpRunning == 0) || !(waterLevel == 1)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) && ((((((2 <= waterLevel && pumpRunning == 0) || (1 <= \result && pumpRunning == 0)) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && ((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(2 <= waterLevel)) || pumpRunning == 0) [2021-12-17 15:07:15,910 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 <= waterLevel) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) [2021-12-17 15:07:15,910 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || !(systemActive == 1)) && ((!(2 <= \old(waterLevel)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-17 15:07:15,910 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || (((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && 0 < tmp + 1) && \result <= 0) && 1 <= \result) && pumpRunning == \old(pumpRunning)) && 1 <= waterLevel)) || !(systemActive == 1)) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(2 <= \old(waterLevel)) || !(methaneLevelCritical == 0)) || (((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && 0 < tmp + 1) && \result <= 0) && 1 <= \result) && pumpRunning == \old(pumpRunning)) && 1 <= waterLevel)) || !(systemActive == 1)) [2021-12-17 15:07:15,912 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((2 <= waterLevel && pumpRunning == 0) || ((tmp___0 == 0 && \result == 0) && pumpRunning == 0)) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) && ((((((2 <= waterLevel && pumpRunning == 0) || ((tmp___0 == 0 && \result == 0) && pumpRunning == 0)) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) [2021-12-17 15:07:15,912 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || ((((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && \result <= 0) && 0 < tmp + 1) && 1 <= tmp) && 1 <= \result) && 1 <= waterLevel) && pumpRunning == 0)) || !(systemActive == 1)) && (((!(2 <= \old(waterLevel)) || ((((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && \result <= 0) && 0 < tmp + 1) && 1 <= tmp) && 1 <= \result) && 1 <= waterLevel) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-17 15:07:15,940 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 15:07:15,940 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 15:07:15,941 INFO L158 Benchmark]: Toolchain (without parser) took 8408.02ms. Allocated memory was 109.1MB in the beginning and 180.4MB in the end (delta: 71.3MB). Free memory was 72.8MB in the beginning and 97.8MB in the end (delta: -25.0MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2021-12-17 15:07:15,941 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 109.1MB. Free memory was 82.1MB in the beginning and 82.1MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 15:07:15,941 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.47ms. Allocated memory is still 109.1MB. Free memory was 72.8MB in the beginning and 75.8MB in the end (delta: -3.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 15:07:15,942 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.49ms. Allocated memory is still 109.1MB. Free memory was 75.8MB in the beginning and 73.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:07:15,942 INFO L158 Benchmark]: Boogie Preprocessor took 36.47ms. Allocated memory is still 109.1MB. Free memory was 73.7MB in the beginning and 72.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:07:15,943 INFO L158 Benchmark]: RCFGBuilder took 331.70ms. Allocated memory is still 109.1MB. Free memory was 71.6MB in the beginning and 55.4MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-17 15:07:15,943 INFO L158 Benchmark]: TraceAbstraction took 7665.22ms. Allocated memory was 109.1MB in the beginning and 180.4MB in the end (delta: 71.3MB). Free memory was 54.8MB in the beginning and 105.1MB in the end (delta: -50.3MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. [2021-12-17 15:07:15,943 INFO L158 Benchmark]: Witness Printer took 64.40ms. Allocated memory is still 180.4MB. Free memory was 105.1MB in the beginning and 97.8MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 15:07:15,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 109.1MB. Free memory was 82.1MB in the beginning and 82.1MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.47ms. Allocated memory is still 109.1MB. Free memory was 72.8MB in the beginning and 75.8MB in the end (delta: -3.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.49ms. Allocated memory is still 109.1MB. Free memory was 75.8MB in the beginning and 73.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.47ms. Allocated memory is still 109.1MB. Free memory was 73.7MB in the beginning and 72.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 331.70ms. Allocated memory is still 109.1MB. Free memory was 71.6MB in the beginning and 55.4MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7665.22ms. Allocated memory was 109.1MB in the beginning and 180.4MB in the end (delta: 71.3MB). Free memory was 54.8MB in the beginning and 105.1MB in the end (delta: -50.3MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. * Witness Printer took 64.40ms. Allocated memory is still 180.4MB. Free memory was 105.1MB in the beginning and 97.8MB in the end (delta: 7.3MB). 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: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1445 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1423 mSDsluCounter, 3601 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2255 mSDsCounter, 395 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1503 IncrementalHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 395 mSolverCounterUnsat, 1346 mSDtfsCounter, 1503 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 468 GetRequests, 355 SyntacticMatches, 6 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=692occurred in iteration=11, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 176 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 1453 PreInvPairs, 1603 NumberOfFragments, 2677 HoareAnnotationTreeSize, 1453 FomulaSimplifications, 123 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 43 FomulaSimplificationsInter, 5973 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 884 NumberOfCodeBlocks, 884 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 869 ConstructedInterpolants, 0 QuantifiedInterpolants, 1559 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1338 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 133/139 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: 604]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: (((systemActive == \result && waterLevel == 1) && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 372]: Loop Invariant Derived loop invariant: (((((((methaneLevelCritical <= \result && 2 <= waterLevel) && pumpRunning == 0) && methaneLevelCritical <= tmp) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && ((((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: ((((((2 <= waterLevel && pumpRunning == 0) || ((tmp___0 == 0 && \result == 0) && pumpRunning == 0)) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) && ((((((2 <= waterLevel && pumpRunning == 0) || ((tmp___0 == 0 && \result == 0) && pumpRunning == 0)) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 472]: Loop Invariant Derived loop invariant: (((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || (((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && 0 < tmp + 1) && \result <= 0) && 1 <= \result) && pumpRunning == \old(pumpRunning)) && 1 <= waterLevel)) || !(systemActive == 1)) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(2 <= \old(waterLevel)) || !(methaneLevelCritical == 0)) || (((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && 0 < tmp + 1) && \result <= 0) && 1 <= \result) && pumpRunning == \old(pumpRunning)) && 1 <= waterLevel)) || !(systemActive == 1)) - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: (((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || ((((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && \result <= 0) && 0 < tmp + 1) && 1 <= tmp) && 1 <= \result) && 1 <= waterLevel) && pumpRunning == 0)) || !(systemActive == 1)) && (((!(2 <= \old(waterLevel)) || ((((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && \result <= 0) && 0 < tmp + 1) && 1 <= tmp) && 1 <= \result) && 1 <= waterLevel) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 227]: Loop Invariant Derived loop invariant: ((((systemActive == tmp && systemActive == \result) && waterLevel == 1) && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 160]: Loop Invariant Derived loop invariant: (((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || !(systemActive == 1)) || (((0 <= \result && \result <= 0) && pumpRunning == \old(pumpRunning)) && 1 <= waterLevel)) && (((!(2 <= \old(waterLevel)) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || (((0 <= \result && \result <= 0) && pumpRunning == \old(pumpRunning)) && 1 <= waterLevel))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && systemActive == tmp) && systemActive == \result) && methaneLevelCritical == 0) && 2 <= waterLevel) && systemActive == 1) || (((((splverifierCounter == 0 && systemActive == tmp) && systemActive == \result) && 2 <= waterLevel) && 1 <= methaneLevelCritical) && systemActive == 1)) || ((((((splverifierCounter == 0 && systemActive == tmp) && systemActive == \result) && 1 <= methaneLevelCritical) && 1 <= waterLevel) && systemActive == 1) && pumpRunning == 0)) || ((((((splverifierCounter == 0 && systemActive == tmp) && systemActive == \result) && methaneLevelCritical == 0) && 1 <= waterLevel) && systemActive == 1) && pumpRunning == 0) - InvariantResult [Line: 397]: Loop Invariant Derived loop invariant: ((((!(waterLevel == 1) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && (((((methaneLevelCritical <= \result && pumpRunning == 0) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(2 <= waterLevel))) && (((((2 <= waterLevel && pumpRunning == 0) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) - InvariantResult [Line: 500]: Loop Invariant Derived loop invariant: ((((((((!(2 <= \old(waterLevel)) || ((methaneLevelCritical == 0 && tmp == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || (((((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && \result <= 0) && 0 < tmp + 1) && 1 <= tmp) && 1 <= \result) && tmp == 0) && 1 <= waterLevel) && pumpRunning == 0)) || !(systemActive == 1)) && ((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || (((((((((1 <= tmp___0 && tmp <= 0) && !(0 == \old(pumpRunning))) && 0 <= \result) && 0 < tmp + 1) && \result <= 0) && 1 <= tmp) && 1 <= \result) && 1 <= waterLevel) && pumpRunning == 0)) || ((pumpRunning == \old(pumpRunning) && 2 <= waterLevel) && pumpRunning == 0)) || !(systemActive == 1))) && ((((!(\old(waterLevel) == 1) || waterLevel == 1) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && ((((!(2 <= \old(waterLevel)) || ((methaneLevelCritical == 0 && tmp == 0) && 2 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && ((((!(\old(waterLevel) == 1) || ((waterLevel == 1 && tmp == 0) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && ((((!(1 <= methaneLevelCritical) || pumpRunning == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 338]: Loop Invariant Derived loop invariant: ((((((((((((methaneLevelCritical == 0 && 2 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) || pumpRunning == 0) && ((((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) || pumpRunning == 0)) && ((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || ((pumpRunning == \old(pumpRunning) && 2 <= waterLevel) && pumpRunning == 0)) || !(systemActive == 1))) && ((((!(\old(waterLevel) == 1) || waterLevel == 1) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && ((((!(2 <= \old(waterLevel)) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && ((((!(\old(waterLevel) == 1) || waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && ((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || ((((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && \result <= 0) && 0 < tmp + 1) && 1 <= tmp) && 1 <= \result) && 1 <= waterLevel) && pumpRunning == 0)) || ((pumpRunning == \old(pumpRunning) && 2 <= waterLevel) && pumpRunning == 0)) || !(systemActive == 1))) && ((((!(2 <= \old(waterLevel)) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || ((((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && \result <= 0) && 0 < tmp + 1) && 1 <= tmp) && 1 <= \result) && 1 <= waterLevel) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) - InvariantResult [Line: 535]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: (((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(systemActive == 1)) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(2 <= \old(waterLevel)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && (((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: (((((((((\result == 0 && pumpRunning == 0) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) && ((!(2 <= \old(waterLevel)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && ((((!(\old(waterLevel) == 1) || waterLevel == 1) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && ((((!(2 <= \old(waterLevel)) || (((\result == 0 && pumpRunning == \old(pumpRunning)) && 2 <= waterLevel) && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && ((((!(2 <= \old(waterLevel)) || (((\result == 0 && pumpRunning == \old(pumpRunning)) && 2 <= waterLevel) && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || (((((((((1 <= tmp___0 && tmp <= 0) && 0 <= \result) && \result == 0) && \result <= 0) && 0 < tmp + 1) && 1 <= tmp) && 1 <= \result) && 1 <= waterLevel) && pumpRunning == 0)) || !(systemActive == 1)) - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: ((((!(2 <= \old(waterLevel)) || !(1 <= methaneLevelCritical)) || !(systemActive == 1)) && ((!(2 <= \old(waterLevel)) || !(methaneLevelCritical == 0)) || !(systemActive == 1))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 235]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 363]: Loop Invariant Derived loop invariant: (((!(1 <= waterLevel) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) - InvariantResult [Line: 536]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && systemActive == tmp) && systemActive == \result) && methaneLevelCritical == 0) && 2 <= waterLevel) && systemActive == 1) || ((((((splverifierCounter == 0 && systemActive == tmp) && systemActive == \result) && 1 <= methaneLevelCritical) && 1 <= waterLevel) && systemActive == 1) && pumpRunning == 0)) || ((((((splverifierCounter == 0 && systemActive == tmp) && systemActive == \result) && methaneLevelCritical == 0) && 1 <= waterLevel) && systemActive == 1) && pumpRunning == 0) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((((((1 <= \result && pumpRunning == 0) || !(waterLevel == 1)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) && ((((((2 <= waterLevel && pumpRunning == 0) || (1 <= \result && pumpRunning == 0)) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && ((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) || !(2 <= waterLevel)) || pumpRunning == 0) RESULT: Ultimate proved your program to be correct! [2021-12-17 15:07:16,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE