./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product49.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_spec3_product49.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 837951bb35a66379a80a07f15314d2b43ee3f47728002b8b604897c09f36abe4 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:08:22,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:08:22,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:08:22,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:08:22,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:08:22,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:08:22,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:08:22,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:08:22,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:08:22,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:08:22,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:08:22,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:08:22,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:08:22,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:08:22,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:08:22,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:08:22,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:08:22,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:08:22,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:08:22,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:08:22,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:08:22,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:08:22,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:08:22,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:08:23,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:08:23,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:08:23,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:08:23,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:08:23,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:08:23,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:08:23,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:08:23,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:08:23,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:08:23,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:08:23,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:08:23,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:08:23,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:08:23,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:08:23,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:08:23,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:08:23,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:08:23,011 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:08:23,035 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:08:23,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:08:23,037 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:08:23,037 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:08:23,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:08:23,038 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:08:23,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:08:23,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:08:23,039 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:08:23,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:08:23,040 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:08:23,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:08:23,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:08:23,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:08:23,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:08:23,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:08:23,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:08:23,041 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:08:23,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:08:23,041 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:08:23,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:08:23,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:08:23,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:08:23,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:08:23,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:08:23,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:08:23,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:08:23,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:08:23,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:08:23,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:08:23,044 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:08:23,044 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:08:23,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:08:23,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:08:23,045 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 837951bb35a66379a80a07f15314d2b43ee3f47728002b8b604897c09f36abe4 [2021-12-17 15:08:23,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:08:23,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:08:23,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:08:23,273 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:08:23,287 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:08:23,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2021-12-17 15:08:23,340 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/779ed33ac/8f8cdcd0d2ff4a1982686b8e73333ee7/FLAG33f94c161 [2021-12-17 15:08:23,723 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:08:23,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2021-12-17 15:08:23,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/779ed33ac/8f8cdcd0d2ff4a1982686b8e73333ee7/FLAG33f94c161 [2021-12-17 15:08:24,127 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/779ed33ac/8f8cdcd0d2ff4a1982686b8e73333ee7 [2021-12-17 15:08:24,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:08:24,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:08:24,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:08:24,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:08:24,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:08:24,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:08:24" (1/1) ... [2021-12-17 15:08:24,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0337d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:24, skipping insertion in model container [2021-12-17 15:08:24,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:08:24" (1/1) ... [2021-12-17 15:08:24,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:08:24,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:08:24,430 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_spec3_product49.cil.c[18588,18601] [2021-12-17 15:08:24,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:08:24,445 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:08:24,521 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_spec3_product49.cil.c[18588,18601] [2021-12-17 15:08:24,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:08:24,538 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:08:24,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:24 WrapperNode [2021-12-17 15:08:24,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:08:24,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:08:24,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:08:24,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:08:24,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:24" (1/1) ... [2021-12-17 15:08:24,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:24" (1/1) ... [2021-12-17 15:08:24,601 INFO L137 Inliner]: procedures = 55, calls = 155, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 263 [2021-12-17 15:08:24,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:08:24,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:08:24,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:08:24,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:08:24,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:24" (1/1) ... [2021-12-17 15:08:24,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:24" (1/1) ... [2021-12-17 15:08:24,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:24" (1/1) ... [2021-12-17 15:08:24,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:24" (1/1) ... [2021-12-17 15:08:24,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:24" (1/1) ... [2021-12-17 15:08:24,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:24" (1/1) ... [2021-12-17 15:08:24,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:24" (1/1) ... [2021-12-17 15:08:24,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:08:24,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:08:24,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:08:24,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:08:24,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:24" (1/1) ... [2021-12-17 15:08:24,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:08:24,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:08:24,678 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 15:08:24,684 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 15:08:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:08:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-17 15:08:24,712 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-17 15:08:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-17 15:08:24,712 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-17 15:08:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-17 15:08:24,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-17 15:08:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-17 15:08:24,715 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-17 15:08:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:08:24,716 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:08:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-17 15:08:24,716 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-17 15:08:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:08:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-17 15:08:24,716 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-17 15:08:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:08:24,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:08:24,773 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:08:24,775 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:08:25,015 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:08:25,020 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:08:25,020 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 15:08:25,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:08:25 BoogieIcfgContainer [2021-12-17 15:08:25,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:08:25,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:08:25,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:08:25,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:08:25,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:08:24" (1/3) ... [2021-12-17 15:08:25,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e18a187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:08:25, skipping insertion in model container [2021-12-17 15:08:25,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:24" (2/3) ... [2021-12-17 15:08:25,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e18a187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:08:25, skipping insertion in model container [2021-12-17 15:08:25,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:08:25" (3/3) ... [2021-12-17 15:08:25,028 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product49.cil.c [2021-12-17 15:08:25,032 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:08:25,032 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:08:25,068 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:08:25,073 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 15:08:25,074 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:08:25,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-17 15:08:25,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-17 15:08:25,094 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:25,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:25,095 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:25,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:25,099 INFO L85 PathProgramCache]: Analyzing trace with hash 644770988, now seen corresponding path program 1 times [2021-12-17 15:08:25,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:25,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046708201] [2021-12-17 15:08:25,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:25,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-17 15:08:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,249 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 15:08:25,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:25,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046708201] [2021-12-17 15:08:25,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046708201] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:25,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:25,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:08:25,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402434414] [2021-12-17 15:08:25,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:25,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:08:25,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:25,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:08:25,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:08:25,285 INFO L87 Difference]: Start difference. First operand has 88 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:25,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:25,314 INFO L93 Difference]: Finished difference Result 168 states and 229 transitions. [2021-12-17 15:08:25,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:08:25,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-12-17 15:08:25,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:25,321 INFO L225 Difference]: With dead ends: 168 [2021-12-17 15:08:25,322 INFO L226 Difference]: Without dead ends: 79 [2021-12-17 15:08:25,324 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 15:08:25,327 INFO L933 BasicCegarLoop]: 111 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, 111 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 15:08:25,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:25,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-12-17 15:08:25,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-12-17 15:08:25,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 68 states have internal predecessors, (81), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-17 15:08:25,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 102 transitions. [2021-12-17 15:08:25,356 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 102 transitions. Word has length 25 [2021-12-17 15:08:25,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:25,356 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 102 transitions. [2021-12-17 15:08:25,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:25,357 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2021-12-17 15:08:25,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-17 15:08:25,359 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:25,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:25,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 15:08:25,359 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:25,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:25,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1977303075, now seen corresponding path program 1 times [2021-12-17 15:08:25,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:25,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994375631] [2021-12-17 15:08:25,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:25,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-17 15:08:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,438 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 15:08:25,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:25,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994375631] [2021-12-17 15:08:25,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994375631] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:25,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:25,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:08:25,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12828739] [2021-12-17 15:08:25,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:25,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:08:25,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:25,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:08:25,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:25,441 INFO L87 Difference]: Start difference. First operand 79 states and 102 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:25,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:25,461 INFO L93 Difference]: Finished difference Result 124 states and 160 transitions. [2021-12-17 15:08:25,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:08:25,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-12-17 15:08:25,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:25,464 INFO L225 Difference]: With dead ends: 124 [2021-12-17 15:08:25,466 INFO L226 Difference]: Without dead ends: 70 [2021-12-17 15:08:25,467 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 15:08:25,468 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 12 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 162 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 15:08:25,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 162 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:25,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-12-17 15:08:25,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-12-17 15:08:25,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 62 states have internal predecessors, (74), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-17 15:08:25,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2021-12-17 15:08:25,476 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 26 [2021-12-17 15:08:25,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:25,476 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2021-12-17 15:08:25,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:25,476 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2021-12-17 15:08:25,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-17 15:08:25,477 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:25,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:25,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 15:08:25,478 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:25,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:25,478 INFO L85 PathProgramCache]: Analyzing trace with hash 378859764, now seen corresponding path program 1 times [2021-12-17 15:08:25,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:25,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034335539] [2021-12-17 15:08:25,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:25,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:08:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,537 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 15:08:25,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:25,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034335539] [2021-12-17 15:08:25,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034335539] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:25,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:25,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:08:25,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848809660] [2021-12-17 15:08:25,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:25,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:08:25,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:25,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:08:25,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:25,542 INFO L87 Difference]: Start difference. First operand 70 states and 90 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:25,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:25,558 INFO L93 Difference]: Finished difference Result 133 states and 174 transitions. [2021-12-17 15:08:25,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:08:25,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-17 15:08:25,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:25,561 INFO L225 Difference]: With dead ends: 133 [2021-12-17 15:08:25,562 INFO L226 Difference]: Without dead ends: 70 [2021-12-17 15:08:25,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:25,567 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 72 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 88 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 15:08:25,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:25,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-12-17 15:08:25,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-12-17 15:08:25,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 62 states have internal predecessors, (73), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-17 15:08:25,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2021-12-17 15:08:25,587 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 30 [2021-12-17 15:08:25,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:25,588 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2021-12-17 15:08:25,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:25,588 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2021-12-17 15:08:25,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-17 15:08:25,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:25,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:25,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 15:08:25,592 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:25,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:25,593 INFO L85 PathProgramCache]: Analyzing trace with hash 533499176, now seen corresponding path program 1 times [2021-12-17 15:08:25,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:25,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118671192] [2021-12-17 15:08:25,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:25,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-17 15:08:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,673 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 15:08:25,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:25,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118671192] [2021-12-17 15:08:25,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118671192] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:25,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:25,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:08:25,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138400780] [2021-12-17 15:08:25,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:25,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:08:25,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:25,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:08:25,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:25,675 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 15:08:25,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:25,717 INFO L93 Difference]: Finished difference Result 177 states and 231 transitions. [2021-12-17 15:08:25,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:08:25,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 38 [2021-12-17 15:08:25,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:25,719 INFO L225 Difference]: With dead ends: 177 [2021-12-17 15:08:25,720 INFO L226 Difference]: Without dead ends: 114 [2021-12-17 15:08:25,720 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 15:08:25,721 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 54 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:25,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 172 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:25,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-12-17 15:08:25,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2021-12-17 15:08:25,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 87 states have (on average 1.3103448275862069) internal successors, (114), 94 states have internal predecessors, (114), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2021-12-17 15:08:25,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 142 transitions. [2021-12-17 15:08:25,739 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 142 transitions. Word has length 38 [2021-12-17 15:08:25,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:25,740 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 142 transitions. [2021-12-17 15:08:25,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 15:08:25,741 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 142 transitions. [2021-12-17 15:08:25,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-17 15:08:25,743 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:25,744 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] [2021-12-17 15:08:25,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 15:08:25,744 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:25,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:25,745 INFO L85 PathProgramCache]: Analyzing trace with hash -504847281, now seen corresponding path program 1 times [2021-12-17 15:08:25,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:25,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130813587] [2021-12-17 15:08:25,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:25,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:08:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 15:08:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,838 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 15:08:25,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:25,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130813587] [2021-12-17 15:08:25,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130813587] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:25,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:25,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:08:25,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491775976] [2021-12-17 15:08:25,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:25,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:08:25,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:25,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:08:25,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:08:25,841 INFO L87 Difference]: Start difference. First operand 112 states and 142 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-17 15:08:25,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:26,000 INFO L93 Difference]: Finished difference Result 251 states and 325 transitions. [2021-12-17 15:08:26,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 15:08:26,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-12-17 15:08:26,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:26,002 INFO L225 Difference]: With dead ends: 251 [2021-12-17 15:08:26,002 INFO L226 Difference]: Without dead ends: 146 [2021-12-17 15:08:26,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:08:26,007 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 62 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:26,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 381 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:26,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-12-17 15:08:26,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 141. [2021-12-17 15:08:26,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 118 states have internal predecessors, (144), 14 states have call successors, (14), 12 states have call predecessors, (14), 15 states have return successors, (21), 15 states have call predecessors, (21), 14 states have call successors, (21) [2021-12-17 15:08:26,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 179 transitions. [2021-12-17 15:08:26,021 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 179 transitions. Word has length 44 [2021-12-17 15:08:26,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:26,021 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 179 transitions. [2021-12-17 15:08:26,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-17 15:08:26,022 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 179 transitions. [2021-12-17 15:08:26,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-17 15:08:26,022 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:26,022 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] [2021-12-17 15:08:26,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 15:08:26,023 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:26,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:26,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1322495731, now seen corresponding path program 1 times [2021-12-17 15:08:26,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:26,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081060647] [2021-12-17 15:08:26,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:26,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:08:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 15:08:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,096 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 15:08:26,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:26,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081060647] [2021-12-17 15:08:26,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081060647] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:26,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:26,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:08:26,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350379343] [2021-12-17 15:08:26,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:26,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:08:26,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:26,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:08:26,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:08:26,098 INFO L87 Difference]: Start difference. First operand 141 states and 179 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-17 15:08:26,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:26,215 INFO L93 Difference]: Finished difference Result 285 states and 371 transitions. [2021-12-17 15:08:26,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 15:08:26,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-12-17 15:08:26,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:26,216 INFO L225 Difference]: With dead ends: 285 [2021-12-17 15:08:26,216 INFO L226 Difference]: Without dead ends: 151 [2021-12-17 15:08:26,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 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 15:08:26,220 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 133 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:26,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 293 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:26,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-12-17 15:08:26,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 143. [2021-12-17 15:08:26,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 113 states have (on average 1.2920353982300885) internal successors, (146), 120 states have internal predecessors, (146), 14 states have call successors, (14), 12 states have call predecessors, (14), 15 states have return successors, (21), 15 states have call predecessors, (21), 14 states have call successors, (21) [2021-12-17 15:08:26,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 181 transitions. [2021-12-17 15:08:26,237 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 181 transitions. Word has length 44 [2021-12-17 15:08:26,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:26,238 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 181 transitions. [2021-12-17 15:08:26,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-17 15:08:26,238 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 181 transitions. [2021-12-17 15:08:26,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-17 15:08:26,239 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:26,239 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] [2021-12-17 15:08:26,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 15:08:26,239 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:26,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:26,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1103641013, now seen corresponding path program 1 times [2021-12-17 15:08:26,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:26,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366367611] [2021-12-17 15:08:26,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:26,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:08:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 15:08:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,284 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 15:08:26,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:26,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366367611] [2021-12-17 15:08:26,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366367611] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:26,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:26,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 15:08:26,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630013966] [2021-12-17 15:08:26,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:26,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:08:26,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:26,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:08:26,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 15:08:26,286 INFO L87 Difference]: Start difference. First operand 143 states and 181 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-17 15:08:26,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:26,417 INFO L93 Difference]: Finished difference Result 406 states and 532 transitions. [2021-12-17 15:08:26,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 15:08:26,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-12-17 15:08:26,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:26,419 INFO L225 Difference]: With dead ends: 406 [2021-12-17 15:08:26,420 INFO L226 Difference]: Without dead ends: 270 [2021-12-17 15:08:26,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:08:26,421 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 204 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:26,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 311 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:26,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-12-17 15:08:26,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 262. [2021-12-17 15:08:26,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 203 states have (on average 1.270935960591133) internal successors, (258), 214 states have internal predecessors, (258), 29 states have call successors, (29), 28 states have call predecessors, (29), 29 states have return successors, (48), 29 states have call predecessors, (48), 29 states have call successors, (48) [2021-12-17 15:08:26,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 335 transitions. [2021-12-17 15:08:26,435 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 335 transitions. Word has length 44 [2021-12-17 15:08:26,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:26,435 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 335 transitions. [2021-12-17 15:08:26,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-17 15:08:26,435 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 335 transitions. [2021-12-17 15:08:26,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-17 15:08:26,436 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:26,436 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] [2021-12-17 15:08:26,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 15:08:26,437 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:26,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:26,437 INFO L85 PathProgramCache]: Analyzing trace with hash 636133877, now seen corresponding path program 1 times [2021-12-17 15:08:26,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:26,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768797697] [2021-12-17 15:08:26,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:26,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:08:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:08:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-17 15:08:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,478 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 15:08:26,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:26,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768797697] [2021-12-17 15:08:26,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768797697] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:26,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:26,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:08:26,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984399389] [2021-12-17 15:08:26,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:26,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:08:26,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:26,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:08:26,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:08:26,480 INFO L87 Difference]: Start difference. First operand 262 states and 335 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:08:26,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:26,583 INFO L93 Difference]: Finished difference Result 520 states and 665 transitions. [2021-12-17 15:08:26,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 15:08:26,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2021-12-17 15:08:26,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:26,585 INFO L225 Difference]: With dead ends: 520 [2021-12-17 15:08:26,585 INFO L226 Difference]: Without dead ends: 265 [2021-12-17 15:08:26,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 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 15:08:26,587 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 111 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:26,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 349 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:26,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-12-17 15:08:26,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 260. [2021-12-17 15:08:26,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 201 states have (on average 1.263681592039801) internal successors, (254), 212 states have internal predecessors, (254), 29 states have call successors, (29), 28 states have call predecessors, (29), 29 states have return successors, (48), 29 states have call predecessors, (48), 29 states have call successors, (48) [2021-12-17 15:08:26,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 331 transitions. [2021-12-17 15:08:26,598 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 331 transitions. Word has length 46 [2021-12-17 15:08:26,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:26,598 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 331 transitions. [2021-12-17 15:08:26,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:08:26,599 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 331 transitions. [2021-12-17 15:08:26,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-17 15:08:26,599 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:26,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:26,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 15:08:26,600 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:26,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:26,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1068859185, now seen corresponding path program 1 times [2021-12-17 15:08:26,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:26,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719926234] [2021-12-17 15:08:26,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:26,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:08:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-17 15:08:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,664 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 15:08:26,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:26,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719926234] [2021-12-17 15:08:26,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719926234] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:26,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:26,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 15:08:26,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25309797] [2021-12-17 15:08:26,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:26,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 15:08:26,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:26,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 15:08:26,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:08:26,666 INFO L87 Difference]: Start difference. First operand 260 states and 331 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 15:08:26,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:26,991 INFO L93 Difference]: Finished difference Result 528 states and 679 transitions. [2021-12-17 15:08:26,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 15:08:26,992 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2021-12-17 15:08:26,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:26,993 INFO L225 Difference]: With dead ends: 528 [2021-12-17 15:08:26,994 INFO L226 Difference]: Without dead ends: 321 [2021-12-17 15:08:26,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2021-12-17 15:08:26,995 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 305 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:26,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 553 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:08:26,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-12-17 15:08:27,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 296. [2021-12-17 15:08:27,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 231 states have (on average 1.2337662337662338) internal successors, (285), 245 states have internal predecessors, (285), 32 states have call successors, (32), 28 states have call predecessors, (32), 32 states have return successors, (44), 32 states have call predecessors, (44), 32 states have call successors, (44) [2021-12-17 15:08:27,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 361 transitions. [2021-12-17 15:08:27,007 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 361 transitions. Word has length 48 [2021-12-17 15:08:27,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:27,008 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 361 transitions. [2021-12-17 15:08:27,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 15:08:27,008 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 361 transitions. [2021-12-17 15:08:27,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-17 15:08:27,009 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:27,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:27,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 15:08:27,009 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:27,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:27,010 INFO L85 PathProgramCache]: Analyzing trace with hash 920704793, now seen corresponding path program 1 times [2021-12-17 15:08:27,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:27,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347993481] [2021-12-17 15:08:27,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:27,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:08:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:08:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-17 15:08:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,049 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 15:08:27,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:27,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347993481] [2021-12-17 15:08:27,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347993481] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:27,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:27,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:08:27,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965102679] [2021-12-17 15:08:27,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:27,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:08:27,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:27,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:08:27,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:08:27,051 INFO L87 Difference]: Start difference. First operand 296 states and 361 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (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 15:08:27,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:27,161 INFO L93 Difference]: Finished difference Result 538 states and 664 transitions. [2021-12-17 15:08:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 15:08:27,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (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 50 [2021-12-17 15:08:27,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:27,163 INFO L225 Difference]: With dead ends: 538 [2021-12-17 15:08:27,163 INFO L226 Difference]: Without dead ends: 297 [2021-12-17 15:08:27,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:08:27,164 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 138 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:27,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 317 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:27,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-12-17 15:08:27,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 293. [2021-12-17 15:08:27,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 228 states have (on average 1.2324561403508771) internal successors, (281), 242 states have internal predecessors, (281), 32 states have call successors, (32), 28 states have call predecessors, (32), 32 states have return successors, (44), 32 states have call predecessors, (44), 32 states have call successors, (44) [2021-12-17 15:08:27,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 357 transitions. [2021-12-17 15:08:27,182 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 357 transitions. Word has length 50 [2021-12-17 15:08:27,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:27,183 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 357 transitions. [2021-12-17 15:08:27,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (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 15:08:27,183 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 357 transitions. [2021-12-17 15:08:27,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-17 15:08:27,184 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:27,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:27,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 15:08:27,184 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:27,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:27,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1139559511, now seen corresponding path program 1 times [2021-12-17 15:08:27,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:27,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933326673] [2021-12-17 15:08:27,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:27,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:08:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:08:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-17 15:08:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,232 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 15:08:27,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:27,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933326673] [2021-12-17 15:08:27,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933326673] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:27,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:27,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 15:08:27,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182972164] [2021-12-17 15:08:27,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:27,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 15:08:27,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:27,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 15:08:27,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-17 15:08:27,234 INFO L87 Difference]: Start difference. First operand 293 states and 357 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-17 15:08:27,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:27,403 INFO L93 Difference]: Finished difference Result 509 states and 626 transitions. [2021-12-17 15:08:27,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 15:08:27,403 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 50 [2021-12-17 15:08:27,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:27,405 INFO L225 Difference]: With dead ends: 509 [2021-12-17 15:08:27,405 INFO L226 Difference]: Without dead ends: 271 [2021-12-17 15:08:27,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 15:08:27,406 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 209 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:27,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 389 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:27,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-12-17 15:08:27,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 267. [2021-12-17 15:08:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 209 states have (on average 1.229665071770335) internal successors, (257), 222 states have internal predecessors, (257), 29 states have call successors, (29), 25 states have call predecessors, (29), 28 states have return successors, (37), 28 states have call predecessors, (37), 29 states have call successors, (37) [2021-12-17 15:08:27,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 323 transitions. [2021-12-17 15:08:27,416 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 323 transitions. Word has length 50 [2021-12-17 15:08:27,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:27,417 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 323 transitions. [2021-12-17 15:08:27,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-17 15:08:27,417 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 323 transitions. [2021-12-17 15:08:27,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-17 15:08:27,417 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:27,418 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-17 15:08:27,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 15:08:27,418 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:27,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:27,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1869867840, now seen corresponding path program 1 times [2021-12-17 15:08:27,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:27,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284460556] [2021-12-17 15:08:27,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:27,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:08:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:08:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-17 15:08:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 15:08:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,497 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 15:08:27,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:27,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284460556] [2021-12-17 15:08:27,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284460556] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:08:27,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086930604] [2021-12-17 15:08:27,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:27,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:08:27,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:08:27,499 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 15:08:27,525 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 15:08:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:27,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-17 15:08:27,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:08:27,858 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-17 15:08:27,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 15:08:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-17 15:08:28,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086930604] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 15:08:28,088 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 15:08:28,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 19 [2021-12-17 15:08:28,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486349745] [2021-12-17 15:08:28,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 15:08:28,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-17 15:08:28,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:28,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-17 15:08:28,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2021-12-17 15:08:28,090 INFO L87 Difference]: Start difference. First operand 267 states and 323 transitions. Second operand has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 14 states have internal predecessors, (129), 7 states have call successors, (17), 10 states have call predecessors, (17), 8 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) [2021-12-17 15:08:29,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:29,250 INFO L93 Difference]: Finished difference Result 801 states and 1041 transitions. [2021-12-17 15:08:29,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-12-17 15:08:29,251 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 14 states have internal predecessors, (129), 7 states have call successors, (17), 10 states have call predecessors, (17), 8 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) Word has length 79 [2021-12-17 15:08:29,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:29,252 INFO L225 Difference]: With dead ends: 801 [2021-12-17 15:08:29,252 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 15:08:29,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1194 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=927, Invalid=3765, Unknown=0, NotChecked=0, Total=4692 [2021-12-17 15:08:29,256 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 848 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:29,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [848 Valid, 872 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 15:08:29,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 15:08:29,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 15:08:29,257 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 15:08:29,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 15:08:29,257 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2021-12-17 15:08:29,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:29,258 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 15:08:29,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 14 states have internal predecessors, (129), 7 states have call successors, (17), 10 states have call predecessors, (17), 8 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) [2021-12-17 15:08:29,258 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 15:08:29,258 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 15:08:29,260 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 15:08:29,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 15:08:29,473 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,SelfDestructingSolverStorable11 [2021-12-17 15:08:29,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 15:08:32,833 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 88 94) no Hoare annotation was computed. [2021-12-17 15:08:32,833 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 88 94) the Hoare annotation is: true [2021-12-17 15:08:32,833 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 388 399) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse2 (not (<= 1 ~pumpRunning~0))) (.cse5 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (<= ~waterLevel~0 2))) (.cse6 (= 0 |old(~methaneLevelCritical~0)|)) (.cse7 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse3 .cse4) (or .cse1 .cse2 .cse4 .cse6 .cse7) (or .cse5 .cse1 .cse4 .cse6 .cse7))) [2021-12-17 15:08:32,833 INFO L858 garLoopResultBuilder]: For program point L392-1(lines 388 399) no Hoare annotation was computed. [2021-12-17 15:08:32,834 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 388 399) no Hoare annotation was computed. [2021-12-17 15:08:32,834 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 870 899) no Hoare annotation was computed. [2021-12-17 15:08:32,834 INFO L861 garLoopResultBuilder]: At program point L895(lines 870 899) the Hoare annotation is: true [2021-12-17 15:08:32,834 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 870 899) the Hoare annotation is: true [2021-12-17 15:08:32,834 INFO L858 garLoopResultBuilder]: For program point L891(line 891) no Hoare annotation was computed. [2021-12-17 15:08:32,834 INFO L858 garLoopResultBuilder]: For program point L884(lines 884 888) no Hoare annotation was computed. [2021-12-17 15:08:32,834 INFO L861 garLoopResultBuilder]: At program point L884-1(lines 884 888) the Hoare annotation is: true [2021-12-17 15:08:32,834 INFO L858 garLoopResultBuilder]: For program point L881(line 881) no Hoare annotation was computed. [2021-12-17 15:08:32,834 INFO L861 garLoopResultBuilder]: At program point L880-2(lines 880 894) the Hoare annotation is: true [2021-12-17 15:08:32,834 INFO L861 garLoopResultBuilder]: At program point L876(line 876) the Hoare annotation is: true [2021-12-17 15:08:32,834 INFO L858 garLoopResultBuilder]: For program point L876-1(line 876) no Hoare annotation was computed. [2021-12-17 15:08:32,834 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 400 408) the Hoare annotation is: true [2021-12-17 15:08:32,834 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 400 408) no Hoare annotation was computed. [2021-12-17 15:08:32,834 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 400 408) no Hoare annotation was computed. [2021-12-17 15:08:32,834 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 143) no Hoare annotation was computed. [2021-12-17 15:08:32,834 INFO L858 garLoopResultBuilder]: For program point L337(lines 337 357) no Hoare annotation was computed. [2021-12-17 15:08:32,834 INFO L858 garLoopResultBuilder]: For program point L969(line 969) no Hoare annotation was computed. [2021-12-17 15:08:32,834 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 64 87) no Hoare annotation was computed. [2021-12-17 15:08:32,834 INFO L854 garLoopResultBuilder]: At program point L160(lines 155 162) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0))) (or .cse0 .cse1 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= ~waterLevel~0 1) (= ~pumpRunning~0 0)) (not (<= 1 |old(~pumpRunning~0)|))))) [2021-12-17 15:08:32,835 INFO L858 garLoopResultBuilder]: For program point L247(lines 247 251) no Hoare annotation was computed. [2021-12-17 15:08:32,835 INFO L858 garLoopResultBuilder]: For program point L247-2(lines 247 251) no Hoare annotation was computed. [2021-12-17 15:08:32,835 INFO L854 garLoopResultBuilder]: At program point L437(lines 432 440) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~5#1|)) (.cse6 (<= |timeShift_getWaterLevel_#res#1| 1)) (.cse9 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse8 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 (= 0 ~methaneLevelCritical~0)) (let ((.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (<= ~waterLevel~0 1)) (.cse7 (= ~methaneLevelCritical~0 0))) (or .cse0 (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) .cse1 (and .cse3 .cse4 .cse5 .cse6 .cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~pumpRunning~0)|)))) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1 .cse2 (and .cse4 .cse9 (<= 1 ~pumpRunning~0))) (or .cse1 .cse2 (and .cse4 .cse6 .cse9 .cse8) (not (<= |old(~waterLevel~0)| 1))) (or (not (= |old(~waterLevel~0)| 1)) .cse1 (= |timeShift_getWaterLevel_#res#1| 1) .cse2))) [2021-12-17 15:08:32,835 INFO L854 garLoopResultBuilder]: At program point L970(lines 965 972) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0))))) [2021-12-17 15:08:32,835 INFO L854 garLoopResultBuilder]: At program point L136(line 136) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= ~waterLevel~0 1) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0))))) [2021-12-17 15:08:32,835 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 353) no Hoare annotation was computed. [2021-12-17 15:08:32,835 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 356) no Hoare annotation was computed. [2021-12-17 15:08:32,835 INFO L854 garLoopResultBuilder]: At program point L343-1(lines 328 360) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~5#1|)) (.cse11 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse6 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (<= ~waterLevel~0 1)) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse9 (and .cse1 .cse11 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0))) (.cse5 (not (= 1 ~systemActive~0))) (.cse10 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (and (<= |timeShift_getWaterLevel_#res#1| 1) (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~3#1| 1))) (.cse8 (not (= ~methaneLevelCritical~0 0)))) (and (let ((.cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse0 (and .cse1 .cse2 .cse3 .cse4) .cse5 (and .cse1 .cse2 .cse3 (= ~pumpRunning~0 0)) .cse6)) (or .cse0 .cse5 .cse7 .cse8 .cse6) (or .cse0 .cse9 .cse5 .cse10 (and .cse1 .cse3 .cse11 .cse4)) (or .cse0 .cse9 .cse5 .cse10 .cse7 .cse8)))) [2021-12-17 15:08:32,835 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 372) no Hoare annotation was computed. [2021-12-17 15:08:32,835 INFO L854 garLoopResultBuilder]: At program point L335(line 335) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (<= ~waterLevel~0 1)) (.cse4 (= ~pumpRunning~0 0))) (and (let ((.cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse0 .cse1 (and .cse2 .cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (and .cse2 .cse3 .cse4) (not (<= 1 |old(~pumpRunning~0)|)))) (let ((.cse5 (= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and .cse5 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0)) .cse0 .cse1 (and .cse3 .cse5 .cse4) (not (= |old(~pumpRunning~0)| 0)))))) [2021-12-17 15:08:32,835 INFO L854 garLoopResultBuilder]: At program point L368-2(lines 364 375) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= ~waterLevel~0 1) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0))))) [2021-12-17 15:08:32,835 INFO L858 garLoopResultBuilder]: For program point L335-1(line 335) no Hoare annotation was computed. [2021-12-17 15:08:32,836 INFO L854 garLoopResultBuilder]: At program point L141(line 141) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse3 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1 .cse2 (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2) .cse3)) (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))) (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse3) .cse1 .cse2 (not (<= |old(~waterLevel~0)| 1))))) [2021-12-17 15:08:32,836 INFO L854 garLoopResultBuilder]: At program point L141-1(lines 122 146) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (<= ~waterLevel~0 1)) (.cse4 (= ~pumpRunning~0 0))) (and (let ((.cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse0 .cse1 (and .cse2 .cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (and .cse2 .cse3 .cse4) (not (<= 1 |old(~pumpRunning~0)|)))) (let ((.cse5 (= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and .cse5 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0)) .cse0 .cse1 (and .cse3 .cse5 .cse4) (not (= |old(~pumpRunning~0)| 0)))))) [2021-12-17 15:08:32,836 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2021-12-17 15:08:32,836 INFO L854 garLoopResultBuilder]: At program point L253(lines 238 256) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= ~waterLevel~0 1) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0))))) [2021-12-17 15:08:32,836 INFO L854 garLoopResultBuilder]: At program point L179(lines 174 182) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse1 .cse2 (and (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~5#1|) (= ~waterLevel~0 |old(~waterLevel~0)|) (<= 1 ~pumpRunning~0) (not (= 0 |timeShift_isPumpRunning_#res#1|)))) (or .cse0 .cse1 .cse2 (= 0 ~methaneLevelCritical~0)) (or .cse1 .cse2 (not (<= |old(~waterLevel~0)| 1))))) [2021-12-17 15:08:32,836 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 64 87) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse2 (not (<= 1 |old(~pumpRunning~0)|))) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse2 .cse3 (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2) .cse4)) (or (and .cse1 .cse4) .cse2 .cse3 (not (<= |old(~waterLevel~0)| 1))))) [2021-12-17 15:08:32,836 INFO L854 garLoopResultBuilder]: At program point L460(lines 455 463) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= ~waterLevel~0 1) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0))))) [2021-12-17 15:08:32,836 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 64 87) no Hoare annotation was computed. [2021-12-17 15:08:32,836 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 969) no Hoare annotation was computed. [2021-12-17 15:08:32,836 INFO L858 garLoopResultBuilder]: For program point L68-1(lines 67 86) no Hoare annotation was computed. [2021-12-17 15:08:32,836 INFO L858 garLoopResultBuilder]: For program point L130(lines 130 138) no Hoare annotation was computed. [2021-12-17 15:08:32,836 INFO L861 garLoopResultBuilder]: At program point L320(lines 261 324) the Hoare annotation is: true [2021-12-17 15:08:32,836 INFO L861 garLoopResultBuilder]: At program point L960(lines 941 963) the Hoare annotation is: true [2021-12-17 15:08:32,837 INFO L854 garLoopResultBuilder]: At program point L283(line 283) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 1))) (or (and .cse0 (<= 1 ~pumpRunning~0) (<= ~waterLevel~0 2) .cse1) (and .cse0 (<= ~waterLevel~0 1) .cse1 (= ~pumpRunning~0 0)))) [2021-12-17 15:08:32,837 INFO L854 garLoopResultBuilder]: At program point L498(lines 493 501) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:32,837 INFO L854 garLoopResultBuilder]: At program point L490(lines 486 492) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:32,837 INFO L854 garLoopResultBuilder]: At program point L928(lines 924 930) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:32,837 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 15:08:32,837 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 15:08:32,837 INFO L854 garLoopResultBuilder]: At program point L317(lines 270 318) the Hoare annotation is: false [2021-12-17 15:08:32,837 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 15:08:32,837 INFO L858 garLoopResultBuilder]: For program point L272(lines 271 316) no Hoare annotation was computed. [2021-12-17 15:08:32,837 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 312) no Hoare annotation was computed. [2021-12-17 15:08:32,837 INFO L854 garLoopResultBuilder]: At program point L293(line 293) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (<= ~waterLevel~0 2)) (.cse2 (= ~systemActive~0 1))) (or (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 0)) (and .cse0 (<= 1 ~pumpRunning~0) .cse1 .cse2))) [2021-12-17 15:08:32,837 INFO L854 garLoopResultBuilder]: At program point L483(lines 479 485) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:32,837 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 15:08:32,837 INFO L854 garLoopResultBuilder]: At program point L314(lines 271 316) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 1))) (or (and .cse0 (<= 1 ~pumpRunning~0) (<= ~waterLevel~0 2) .cse1) (and .cse0 (<= ~waterLevel~0 1) .cse1 (= ~pumpRunning~0 0)))) [2021-12-17 15:08:32,837 INFO L858 garLoopResultBuilder]: For program point L281(lines 281 287) no Hoare annotation was computed. [2021-12-17 15:08:32,837 INFO L858 garLoopResultBuilder]: For program point L281-1(lines 281 287) no Hoare annotation was computed. [2021-12-17 15:08:32,838 INFO L858 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2021-12-17 15:08:32,838 INFO L861 garLoopResultBuilder]: At program point L938(lines 931 940) the Hoare annotation is: true [2021-12-17 15:08:32,838 INFO L858 garLoopResultBuilder]: For program point L951(lines 951 958) no Hoare annotation was computed. [2021-12-17 15:08:32,838 INFO L858 garLoopResultBuilder]: For program point L951-2(lines 951 958) no Hoare annotation was computed. [2021-12-17 15:08:32,838 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 311) no Hoare annotation was computed. [2021-12-17 15:08:32,838 INFO L854 garLoopResultBuilder]: At program point L307-2(lines 301 312) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (<= ~waterLevel~0 2)) (.cse2 (= ~systemActive~0 1))) (or (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 0)) (and .cse0 (<= 1 ~pumpRunning~0) .cse1 .cse2))) [2021-12-17 15:08:32,838 INFO L858 garLoopResultBuilder]: For program point L291(lines 291 297) no Hoare annotation was computed. [2021-12-17 15:08:32,838 INFO L858 garLoopResultBuilder]: For program point L291-1(lines 291 297) no Hoare annotation was computed. [2021-12-17 15:08:32,838 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 96 120) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= ~waterLevel~0 2)) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) (or (not (<= ~waterLevel~0 1)) .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|))))) [2021-12-17 15:08:32,838 INFO L854 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (let ((.cse0 (not (<= ~waterLevel~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 (and (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse1 .cse2) (or .cse1 (not (<= ~waterLevel~0 2)) .cse2 (not (<= 2 ~waterLevel~0))))) [2021-12-17 15:08:32,838 INFO L854 garLoopResultBuilder]: At program point L234(lines 219 237) the Hoare annotation is: (let ((.cse0 (<= ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not .cse0) .cse1 (not (<= 1 |old(~pumpRunning~0)|))) (let ((.cse2 (= ~pumpRunning~0 0))) (or (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~2#1| 0) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1|) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|) (<= 2 ~waterLevel~0) .cse2 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) .cse0 .cse2) .cse1 (not (<= ~waterLevel~0 2)) (not (= |old(~pumpRunning~0)| 0)))))) [2021-12-17 15:08:32,838 INFO L858 garLoopResultBuilder]: For program point L104(lines 104 112) no Hoare annotation was computed. [2021-12-17 15:08:32,838 INFO L858 garLoopResultBuilder]: For program point L100(lines 100 117) no Hoare annotation was computed. [2021-12-17 15:08:32,838 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 232) no Hoare annotation was computed. [2021-12-17 15:08:32,838 INFO L858 garLoopResultBuilder]: For program point L228-2(lines 228 232) no Hoare annotation was computed. [2021-12-17 15:08:32,838 INFO L858 garLoopResultBuilder]: For program point L445(lines 445 451) no Hoare annotation was computed. [2021-12-17 15:08:32,839 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 96 120) no Hoare annotation was computed. [2021-12-17 15:08:32,839 INFO L854 garLoopResultBuilder]: At program point L152(lines 147 154) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (<= ~waterLevel~0 1)) .cse0 (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= |old(~pumpRunning~0)| 0)) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~2#1| 0) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1|) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|) (<= 1 ~pumpRunning~0) (<= 1 |processEnvironment__wrappee__highWaterSensor_~tmp~0#1|) (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))))) [2021-12-17 15:08:32,839 INFO L854 garLoopResultBuilder]: At program point L115(line 115) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= ~waterLevel~0 2)) (not (= |old(~pumpRunning~0)| 0))) (or (not (<= ~waterLevel~0 1)) .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|))))) [2021-12-17 15:08:32,839 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 96 120) no Hoare annotation was computed. [2021-12-17 15:08:32,839 INFO L854 garLoopResultBuilder]: At program point L450(lines 441 454) the Hoare annotation is: (let ((.cse2 (<= ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0)))) (and (let ((.cse0 (= ~pumpRunning~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) .cse1 (and .cse2 (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0) (not (<= ~waterLevel~0 2)) (not (= |old(~pumpRunning~0)| 0)))) (or (not .cse2) .cse1 (not (<= 1 |old(~pumpRunning~0)|))))) [2021-12-17 15:08:32,839 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 376 387) no Hoare annotation was computed. [2021-12-17 15:08:32,839 INFO L858 garLoopResultBuilder]: For program point L380-1(lines 376 387) no Hoare annotation was computed. [2021-12-17 15:08:32,839 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 376 387) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (= ~pumpRunning~0 0)) .cse0 .cse2 .cse3) (or (not (<= 2 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2)) .cse0 .cse1))) [2021-12-17 15:08:32,841 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:32,842 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 15:08:32,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:08:32 BoogieIcfgContainer [2021-12-17 15:08:32,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 15:08:32,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 15:08:32,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 15:08:32,877 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 15:08:32,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:08:25" (3/4) ... [2021-12-17 15:08:32,879 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 15:08:32,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-17 15:08:32,886 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-17 15:08:32,886 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-17 15:08:32,886 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-12-17 15:08:32,886 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-17 15:08:32,886 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:08:32,886 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-17 15:08:32,905 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2021-12-17 15:08:32,906 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-17 15:08:32,906 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 15:08:32,906 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 15:08:32,906 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 15:08:32,906 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:08:32,907 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:08:32,936 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning))) && ((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) [2021-12-17 15:08:32,936 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) && ((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || ((waterLevel <= 1 && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) [2021-12-17 15:08:32,937 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(waterLevel) <= 2) || (((methaneLevelCritical == tmp && waterLevel <= \old(waterLevel)) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(1 == systemActive)) || (((methaneLevelCritical == tmp && waterLevel <= \old(waterLevel)) && waterLevel <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) && ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || (\result <= 1 && tmp___0 <= 1)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && ((((!(\old(waterLevel) <= 2) || (((methaneLevelCritical == tmp && waterLevel == \old(waterLevel)) && 1 <= pumpRunning) && 2 <= waterLevel)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || (((methaneLevelCritical == tmp && waterLevel <= 1) && waterLevel == \old(waterLevel)) && pumpRunning == \old(pumpRunning)))) && (((((!(\old(waterLevel) <= 2) || (((methaneLevelCritical == tmp && waterLevel == \old(waterLevel)) && 1 <= pumpRunning) && 2 <= waterLevel)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || (\result <= 1 && tmp___0 <= 1)) || !(methaneLevelCritical == 0)) [2021-12-17 15:08:32,937 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning))) && ((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) [2021-12-17 15:08:32,937 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || 0 == methaneLevelCritical) && ((((!(\old(waterLevel) <= 2) || (((((waterLevel <= \old(waterLevel) && methaneLevelCritical == tmp) && waterLevel <= 1) && \result <= 1) && methaneLevelCritical == 0) && pumpRunning == 0)) || !(1 == systemActive)) || (((((waterLevel <= \old(waterLevel) && methaneLevelCritical == tmp) && waterLevel <= 1) && \result <= 1) && methaneLevelCritical == 0) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning)))) && ((((!(2 <= \old(waterLevel)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || ((methaneLevelCritical == tmp && waterLevel == \old(waterLevel)) && 1 <= pumpRunning))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || (((methaneLevelCritical == tmp && \result <= 1) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(\old(waterLevel) <= 1))) && (((!(\old(waterLevel) == 1) || !(1 == systemActive)) || \result == 1) || !(\old(pumpRunning) == 0)) [2021-12-17 15:08:32,938 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((2 <= waterLevel && pumpRunning == 0) && \result == 0) || !(1 == systemActive)) || ((waterLevel <= 1 && 1 <= \result) && pumpRunning == 0)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) && ((!(waterLevel <= 1) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) [2021-12-17 15:08:32,938 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning))) && ((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) [2021-12-17 15:08:32,938 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || (((methaneLevelCritical == tmp && waterLevel == \old(waterLevel)) && 1 <= pumpRunning) && !(0 == \result)))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || 0 == methaneLevelCritical)) && ((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) <= 1)) [2021-12-17 15:08:32,938 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(waterLevel <= 1) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) && (((((((((tmp == 0 && 1 <= tmp___0) && 1 <= \result) && 2 <= waterLevel) && pumpRunning == 0) && \result == 0) || (((tmp___0 == 0 && \result == 0) && waterLevel <= 1) && pumpRunning == 0)) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) [2021-12-17 15:08:32,938 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) [2021-12-17 15:08:32,939 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(waterLevel <= 1) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) && (((!(1 == systemActive) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) || ((((((tmp == 0 && 1 <= tmp___0) && 1 <= \result) && 1 <= pumpRunning) && 1 <= tmp) && 2 <= waterLevel) && \result == 0)) [2021-12-17 15:08:32,940 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) && ((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) [2021-12-17 15:08:32,966 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 15:08:32,969 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 15:08:32,970 INFO L158 Benchmark]: Toolchain (without parser) took 8839.39ms. Allocated memory was 92.3MB in the beginning and 165.7MB in the end (delta: 73.4MB). Free memory was 63.2MB in the beginning and 46.9MB in the end (delta: 16.3MB). Peak memory consumption was 90.7MB. Max. memory is 16.1GB. [2021-12-17 15:08:32,970 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 92.3MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 15:08:32,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.85ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 62.9MB in the beginning and 104.2MB in the end (delta: -41.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 15:08:32,971 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.13ms. Allocated memory is still 136.3MB. Free memory was 104.2MB in the beginning and 101.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:08:32,971 INFO L158 Benchmark]: Boogie Preprocessor took 38.18ms. Allocated memory is still 136.3MB. Free memory was 101.4MB in the beginning and 100.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:08:32,971 INFO L158 Benchmark]: RCFGBuilder took 379.67ms. Allocated memory is still 136.3MB. Free memory was 100.0MB in the beginning and 83.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-17 15:08:32,972 INFO L158 Benchmark]: TraceAbstraction took 7852.83ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 83.2MB in the beginning and 53.2MB in the end (delta: 30.0MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. [2021-12-17 15:08:32,972 INFO L158 Benchmark]: Witness Printer took 93.00ms. Allocated memory is still 165.7MB. Free memory was 53.2MB in the beginning and 46.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 15:08:32,973 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 92.3MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.85ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 62.9MB in the beginning and 104.2MB in the end (delta: -41.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.13ms. Allocated memory is still 136.3MB. Free memory was 104.2MB in the beginning and 101.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.18ms. Allocated memory is still 136.3MB. Free memory was 101.4MB in the beginning and 100.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 379.67ms. Allocated memory is still 136.3MB. Free memory was 100.0MB in the beginning and 83.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7852.83ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 83.2MB in the beginning and 53.2MB in the end (delta: 30.0MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. * Witness Printer took 93.00ms. Allocated memory is still 165.7MB. Free memory was 53.2MB in the beginning and 46.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 969]: 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, 88 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.8s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2176 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2148 mSDsluCounter, 3998 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2729 mSDsCounter, 656 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2150 IncrementalHoareTripleChecker+Invalid, 2806 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 656 mSolverCounterUnsat, 1269 mSDtfsCounter, 2150 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 379 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1319 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=296occurred in iteration=9, InterpolantAutomatonStates: 127, 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, 61 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 40 LocationsWithAnnotation, 1114 PreInvPairs, 1351 NumberOfFragments, 1400 HoareAnnotationTreeSize, 1114 FomulaSimplifications, 1149 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 40 FomulaSimplificationsInter, 12441 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 603 NumberOfCodeBlocks, 603 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 668 ConstructedInterpolants, 0 QuantifiedInterpolants, 1388 SizeOfPredicates, 4 NumberOfNonLiveVariables, 432 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 42/60 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: 122]: Loop Invariant Derived loop invariant: ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) && ((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || ((waterLevel <= 1 && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 486]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 270]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 941]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: ((((((2 <= waterLevel && pumpRunning == 0) && \result == 0) || !(1 == systemActive)) || ((waterLevel <= 1 && 1 <= \result) && pumpRunning == 0)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) && ((!(waterLevel <= 1) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || (((methaneLevelCritical == tmp && waterLevel == \old(waterLevel)) && 1 <= pumpRunning) && !(0 == \result)))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || 0 == methaneLevelCritical)) && ((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) <= 1)) - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning))) && ((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 238]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning))) && ((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: ((!(waterLevel <= 1) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) && (((((((((tmp == 0 && 1 <= tmp___0) && 1 <= \result) && 2 <= waterLevel) && pumpRunning == 0) && \result == 0) || (((tmp___0 == 0 && \result == 0) && waterLevel <= 1) && pumpRunning == 0)) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 870]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 271]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && 1 <= pumpRunning) && waterLevel <= 2) && systemActive == 1) || (((splverifierCounter == 0 && waterLevel <= 1) && systemActive == 1) && pumpRunning == 0) - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: ((((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || 0 == methaneLevelCritical) && ((((!(\old(waterLevel) <= 2) || (((((waterLevel <= \old(waterLevel) && methaneLevelCritical == tmp) && waterLevel <= 1) && \result <= 1) && methaneLevelCritical == 0) && pumpRunning == 0)) || !(1 == systemActive)) || (((((waterLevel <= \old(waterLevel) && methaneLevelCritical == tmp) && waterLevel <= 1) && \result <= 1) && methaneLevelCritical == 0) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning)))) && ((((!(2 <= \old(waterLevel)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || ((methaneLevelCritical == tmp && waterLevel == \old(waterLevel)) && 1 <= pumpRunning))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || (((methaneLevelCritical == tmp && \result <= 1) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(\old(waterLevel) <= 1))) && (((!(\old(waterLevel) == 1) || !(1 == systemActive)) || \result == 1) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: ((!(waterLevel <= 1) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) && (((!(1 == systemActive) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) || ((((((tmp == 0 && 1 <= tmp___0) && 1 <= \result) && 1 <= pumpRunning) && 1 <= tmp) && 2 <= waterLevel) && \result == 0)) - InvariantResult [Line: 931]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 328]: Loop Invariant Derived loop invariant: ((((((!(\old(waterLevel) <= 2) || (((methaneLevelCritical == tmp && waterLevel <= \old(waterLevel)) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(1 == systemActive)) || (((methaneLevelCritical == tmp && waterLevel <= \old(waterLevel)) && waterLevel <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) && ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || (\result <= 1 && tmp___0 <= 1)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && ((((!(\old(waterLevel) <= 2) || (((methaneLevelCritical == tmp && waterLevel == \old(waterLevel)) && 1 <= pumpRunning) && 2 <= waterLevel)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || (((methaneLevelCritical == tmp && waterLevel <= 1) && waterLevel == \old(waterLevel)) && pumpRunning == \old(pumpRunning)))) && (((((!(\old(waterLevel) <= 2) || (((methaneLevelCritical == tmp && waterLevel == \old(waterLevel)) && 1 <= pumpRunning) && 2 <= waterLevel)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || (\result <= 1 && tmp___0 <= 1)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 965]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) && ((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 924]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 364]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning))) && ((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) RESULT: Ultimate proved your program to be correct! [2021-12-17 15:08:33,033 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