./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_spec4_product04.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 5b8d1d7ceb68ac6e6630901277fde5f28b3f6a5d2baa824d9bcd68a03d4bbbff --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:24:54,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:24:54,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:24:54,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:24:54,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:24:54,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:24:54,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:24:54,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:24:54,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:24:54,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:24:54,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:24:54,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:24:54,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:24:54,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:24:54,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:24:54,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:24:54,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:24:54,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:24:54,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:24:54,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:24:54,701 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:24:54,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:24:54,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:24:54,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:24:54,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:24:54,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:24:54,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:24:54,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:24:54,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:24:54,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:24:54,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:24:54,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:24:54,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:24:54,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:24:54,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:24:54,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:24:54,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:24:54,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:24:54,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:24:54,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:24:54,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:24:54,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:24:54,724 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:24:54,760 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:24:54,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:24:54,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:24:54,761 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:24:54,762 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:24:54,762 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:24:54,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:24:54,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:24:54,763 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:24:54,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:24:54,764 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:24:54,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:24:54,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:24:54,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:24:54,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:24:54,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:24:54,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:24:54,766 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:24:54,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:24:54,766 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:24:54,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:24:54,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:24:54,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:24:54,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:24:54,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:24:54,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:24:54,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:24:54,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:24:54,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:24:54,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:24:54,768 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:24:54,769 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:24:54,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:24:54,769 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b8d1d7ceb68ac6e6630901277fde5f28b3f6a5d2baa824d9bcd68a03d4bbbff [2022-07-19 17:24:55,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:24:55,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:24:55,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:24:55,062 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:24:55,062 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:24:55,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c [2022-07-19 17:24:55,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/746e37117/d239766dd6be46cebb6ec18ffaafe55b/FLAG73907d46a [2022-07-19 17:24:55,541 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:24:55,541 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c [2022-07-19 17:24:55,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/746e37117/d239766dd6be46cebb6ec18ffaafe55b/FLAG73907d46a [2022-07-19 17:24:55,565 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/746e37117/d239766dd6be46cebb6ec18ffaafe55b [2022-07-19 17:24:55,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:24:55,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:24:55,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:24:55,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:24:55,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:24:55,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:24:55" (1/1) ... [2022-07-19 17:24:55,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b94eb12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:55, skipping insertion in model container [2022-07-19 17:24:55,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:24:55" (1/1) ... [2022-07-19 17:24:55,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:24:55,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:24:55,990 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_spec4_product04.cil.c[16697,16710] [2022-07-19 17:24:56,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:24:56,011 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:24:56,097 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_spec4_product04.cil.c[16697,16710] [2022-07-19 17:24:56,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:24:56,116 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:24:56,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:56 WrapperNode [2022-07-19 17:24:56,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:24:56,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:24:56,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:24:56,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:24:56,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:56" (1/1) ... [2022-07-19 17:24:56,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:56" (1/1) ... [2022-07-19 17:24:56,163 INFO L137 Inliner]: procedures = 51, calls = 147, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 196 [2022-07-19 17:24:56,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:24:56,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:24:56,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:24:56,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:24:56,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:56" (1/1) ... [2022-07-19 17:24:56,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:56" (1/1) ... [2022-07-19 17:24:56,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:56" (1/1) ... [2022-07-19 17:24:56,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:56" (1/1) ... [2022-07-19 17:24:56,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:56" (1/1) ... [2022-07-19 17:24:56,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:56" (1/1) ... [2022-07-19 17:24:56,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:56" (1/1) ... [2022-07-19 17:24:56,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:24:56,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:24:56,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:24:56,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:24:56,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:56" (1/1) ... [2022-07-19 17:24:56,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:24:56,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:24:56,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 17:24:56,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 17:24:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:24:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-19 17:24:56,275 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-19 17:24:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-19 17:24:56,276 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-19 17:24:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-19 17:24:56,276 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-19 17:24:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:24:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-19 17:24:56,276 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-19 17:24:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:24:56,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:24:56,350 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:24:56,352 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:24:56,533 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:24:56,539 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:24:56,539 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 17:24:56,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:24:56 BoogieIcfgContainer [2022-07-19 17:24:56,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:24:56,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:24:56,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:24:56,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:24:56,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:24:55" (1/3) ... [2022-07-19 17:24:56,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e67236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:24:56, skipping insertion in model container [2022-07-19 17:24:56,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:56" (2/3) ... [2022-07-19 17:24:56,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e67236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:24:56, skipping insertion in model container [2022-07-19 17:24:56,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:24:56" (3/3) ... [2022-07-19 17:24:56,548 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product04.cil.c [2022-07-19 17:24:56,560 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:24:56,560 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:24:56,599 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:24:56,605 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2b653d9d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@e158011 [2022-07-19 17:24:56,606 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:24:56,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 51 states have (on average 1.392156862745098) internal successors, (71), 55 states have internal predecessors, (71), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-19 17:24:56,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-19 17:24:56,616 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:56,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:24:56,617 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:56,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:56,622 INFO L85 PathProgramCache]: Analyzing trace with hash 104536911, now seen corresponding path program 1 times [2022-07-19 17:24:56,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:56,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469692801] [2022-07-19 17:24:56,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:56,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:56,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:24:56,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:56,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469692801] [2022-07-19 17:24:56,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469692801] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:56,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:24:56,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:24:56,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708478319] [2022-07-19 17:24:56,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:56,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:24:56,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:56,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:24:56,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:24:56,929 INFO L87 Difference]: Start difference. First operand has 63 states, 51 states have (on average 1.392156862745098) internal successors, (71), 55 states have internal predecessors, (71), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:24:56,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:56,958 INFO L93 Difference]: Finished difference Result 118 states and 161 transitions. [2022-07-19 17:24:56,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:24:56,961 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-19 17:24:56,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:56,967 INFO L225 Difference]: With dead ends: 118 [2022-07-19 17:24:56,967 INFO L226 Difference]: Without dead ends: 54 [2022-07-19 17:24:56,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:24:56,975 INFO L413 NwaCegarLoop]: 77 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, 77 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:24:56,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:24:56,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-07-19 17:24:57,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-07-19 17:24:57,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 47 states have internal predecessors, (57), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-19 17:24:57,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2022-07-19 17:24:57,010 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 19 [2022-07-19 17:24:57,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:57,010 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2022-07-19 17:24:57,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:24:57,011 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2022-07-19 17:24:57,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-19 17:24:57,012 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:57,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:24:57,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 17:24:57,013 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:57,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:57,014 INFO L85 PathProgramCache]: Analyzing trace with hash -2010419421, now seen corresponding path program 1 times [2022-07-19 17:24:57,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:57,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562322422] [2022-07-19 17:24:57,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:57,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:57,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:24:57,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:57,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562322422] [2022-07-19 17:24:57,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562322422] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:57,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:24:57,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:24:57,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867442296] [2022-07-19 17:24:57,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:57,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:24:57,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:57,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:24:57,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:24:57,127 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:24:57,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:57,143 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2022-07-19 17:24:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:24:57,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-19 17:24:57,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:57,146 INFO L225 Difference]: With dead ends: 69 [2022-07-19 17:24:57,147 INFO L226 Difference]: Without dead ends: 45 [2022-07-19 17:24:57,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:24:57,150 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 18 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 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 [2022-07-19 17:24:57,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:24:57,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-07-19 17:24:57,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-07-19 17:24:57,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 41 states have internal predecessors, (50), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-19 17:24:57,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2022-07-19 17:24:57,163 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 20 [2022-07-19 17:24:57,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:57,164 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2022-07-19 17:24:57,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:24:57,165 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2022-07-19 17:24:57,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-19 17:24:57,166 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:57,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:24:57,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 17:24:57,168 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:57,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:57,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1391456279, now seen corresponding path program 1 times [2022-07-19 17:24:57,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:57,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830034637] [2022-07-19 17:24:57,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:57,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:57,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:24:57,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:57,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830034637] [2022-07-19 17:24:57,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830034637] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:57,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:24:57,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:24:57,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696596904] [2022-07-19 17:24:57,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:57,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:24:57,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:57,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:24:57,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:24:57,314 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:24:57,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:57,398 INFO L93 Difference]: Finished difference Result 118 states and 153 transitions. [2022-07-19 17:24:57,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:24:57,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-07-19 17:24:57,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:57,401 INFO L225 Difference]: With dead ends: 118 [2022-07-19 17:24:57,401 INFO L226 Difference]: Without dead ends: 80 [2022-07-19 17:24:57,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:24:57,403 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 124 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:24:57,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 155 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:24:57,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-07-19 17:24:57,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 75. [2022-07-19 17:24:57,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 67 states have internal predecessors, (84), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-07-19 17:24:57,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2022-07-19 17:24:57,419 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 25 [2022-07-19 17:24:57,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:57,420 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2022-07-19 17:24:57,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:24:57,420 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2022-07-19 17:24:57,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-19 17:24:57,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:57,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:24:57,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 17:24:57,422 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:57,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:57,423 INFO L85 PathProgramCache]: Analyzing trace with hash 2118082784, now seen corresponding path program 1 times [2022-07-19 17:24:57,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:57,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113324639] [2022-07-19 17:24:57,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:57,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:24:57,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:57,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113324639] [2022-07-19 17:24:57,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113324639] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:57,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:24:57,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:24:57,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036588627] [2022-07-19 17:24:57,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:57,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:24:57,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:57,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:24:57,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:24:57,537 INFO L87 Difference]: Start difference. First operand 75 states and 97 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:24:57,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:57,602 INFO L93 Difference]: Finished difference Result 199 states and 274 transitions. [2022-07-19 17:24:57,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:24:57,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-07-19 17:24:57,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:57,605 INFO L225 Difference]: With dead ends: 199 [2022-07-19 17:24:57,605 INFO L226 Difference]: Without dead ends: 131 [2022-07-19 17:24:57,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:24:57,607 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 30 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:24:57,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 208 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:24:57,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-07-19 17:24:57,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2022-07-19 17:24:57,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 108 states have (on average 1.3333333333333333) internal successors, (144), 115 states have internal predecessors, (144), 12 states have call successors, (12), 12 states have call predecessors, (12), 10 states have return successors, (17), 10 states have call predecessors, (17), 12 states have call successors, (17) [2022-07-19 17:24:57,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 173 transitions. [2022-07-19 17:24:57,625 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 173 transitions. Word has length 26 [2022-07-19 17:24:57,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:57,625 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 173 transitions. [2022-07-19 17:24:57,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:24:57,626 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 173 transitions. [2022-07-19 17:24:57,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-19 17:24:57,627 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:57,627 INFO L195 NwaCegarLoop]: 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] [2022-07-19 17:24:57,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 17:24:57,628 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:57,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:57,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1144185819, now seen corresponding path program 1 times [2022-07-19 17:24:57,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:57,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231990983] [2022-07-19 17:24:57,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:57,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:57,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:24:57,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:57,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231990983] [2022-07-19 17:24:57,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231990983] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:57,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:24:57,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:24:57,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012711603] [2022-07-19 17:24:57,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:57,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:24:57,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:57,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:24:57,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:24:57,672 INFO L87 Difference]: Start difference. First operand 131 states and 173 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:24:57,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:57,685 INFO L93 Difference]: Finished difference Result 247 states and 332 transitions. [2022-07-19 17:24:57,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:24:57,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-07-19 17:24:57,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:57,687 INFO L225 Difference]: With dead ends: 247 [2022-07-19 17:24:57,687 INFO L226 Difference]: Without dead ends: 123 [2022-07-19 17:24:57,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:24:57,689 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:24:57,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 47 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:24:57,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-07-19 17:24:57,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2022-07-19 17:24:57,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 100 states have (on average 1.28) internal successors, (128), 107 states have internal predecessors, (128), 12 states have call successors, (12), 12 states have call predecessors, (12), 10 states have return successors, (14), 10 states have call predecessors, (14), 12 states have call successors, (14) [2022-07-19 17:24:57,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 154 transitions. [2022-07-19 17:24:57,705 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 154 transitions. Word has length 28 [2022-07-19 17:24:57,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:57,706 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 154 transitions. [2022-07-19 17:24:57,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:24:57,706 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 154 transitions. [2022-07-19 17:24:57,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-19 17:24:57,707 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:57,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:24:57,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 17:24:57,708 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:57,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:57,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1922048634, now seen corresponding path program 1 times [2022-07-19 17:24:57,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:57,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298868217] [2022-07-19 17:24:57,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:57,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:57,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:24:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:57,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:24:57,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:57,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298868217] [2022-07-19 17:24:57,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298868217] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:57,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:24:57,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:24:57,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806396313] [2022-07-19 17:24:57,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:57,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:24:57,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:57,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:24:57,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:24:57,767 INFO L87 Difference]: Start difference. First operand 123 states and 154 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:24:57,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:57,820 INFO L93 Difference]: Finished difference Result 133 states and 165 transitions. [2022-07-19 17:24:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:24:57,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-07-19 17:24:57,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:57,821 INFO L225 Difference]: With dead ends: 133 [2022-07-19 17:24:57,821 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 17:24:57,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:24:57,823 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 46 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:24:57,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 147 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:24:57,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 17:24:57,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 17:24:57,824 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) [2022-07-19 17:24:57,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 17:24:57,824 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2022-07-19 17:24:57,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:57,825 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 17:24:57,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:24:57,825 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 17:24:57,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 17:24:57,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 17:24:57,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 17:24:57,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 17:24:58,278 INFO L899 garLoopResultBuilder]: For program point L223-1(lines 219 230) no Hoare annotation was computed. [2022-07-19 17:24:58,279 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 219 230) the Hoare annotation is: true [2022-07-19 17:24:58,279 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 219 230) no Hoare annotation was computed. [2022-07-19 17:24:58,279 INFO L899 garLoopResultBuilder]: For program point L865(lines 865 871) no Hoare annotation was computed. [2022-07-19 17:24:58,279 INFO L899 garLoopResultBuilder]: For program point L861(lines 861 874) no Hoare annotation was computed. [2022-07-19 17:24:58,279 INFO L895 garLoopResultBuilder]: At program point L861-1(lines 853 877) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~5#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))) (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2022-07-19 17:24:58,279 INFO L895 garLoopResultBuilder]: At program point L345(lines 340 348) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or (and (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2022-07-19 17:24:58,279 INFO L895 garLoopResultBuilder]: At program point L310(lines 306 312) the Hoare annotation is: (or (and (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0))) (not (= ~pumpRunning~0 0))) [2022-07-19 17:24:58,279 INFO L895 garLoopResultBuilder]: At program point L849(lines 844 851) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2022-07-19 17:24:58,279 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 203) no Hoare annotation was computed. [2022-07-19 17:24:58,279 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 282 305) no Hoare annotation was computed. [2022-07-19 17:24:58,280 INFO L895 garLoopResultBuilder]: At program point L199-2(lines 195 206) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2022-07-19 17:24:58,280 INFO L899 garLoopResultBuilder]: For program point L286-1(lines 285 304) no Hoare annotation was computed. [2022-07-19 17:24:58,280 INFO L899 garLoopResultBuilder]: For program point L848(line 848) no Hoare annotation was computed. [2022-07-19 17:24:58,280 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 282 305) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-07-19 17:24:58,280 INFO L895 garLoopResultBuilder]: At program point L268(lines 263 271) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1)) (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2022-07-19 17:24:58,280 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 282 305) no Hoare annotation was computed. [2022-07-19 17:24:58,280 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 848) no Hoare annotation was computed. [2022-07-19 17:24:58,280 INFO L899 garLoopResultBuilder]: For program point L293-1(lines 293 299) no Hoare annotation was computed. [2022-07-19 17:24:58,280 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-07-19 17:24:58,280 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-07-19 17:24:58,280 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2022-07-19 17:24:58,281 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2022-07-19 17:24:58,281 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-07-19 17:24:58,281 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-07-19 17:24:58,281 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-07-19 17:24:58,281 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-07-19 17:24:58,281 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-07-19 17:24:58,281 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-07-19 17:24:58,281 INFO L895 garLoopResultBuilder]: At program point L184(lines 179 187) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-19 17:24:58,281 INFO L895 garLoopResultBuilder]: At program point L469(lines 418 470) the Hoare annotation is: false [2022-07-19 17:24:58,281 INFO L895 garLoopResultBuilder]: At program point L176(lines 172 178) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-19 17:24:58,281 INFO L899 garLoopResultBuilder]: For program point L457(lines 457 463) no Hoare annotation was computed. [2022-07-19 17:24:58,281 INFO L895 garLoopResultBuilder]: At program point L457-2(lines 449 464) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:24:58,282 INFO L899 garLoopResultBuilder]: For program point L420(lines 419 468) no Hoare annotation was computed. [2022-07-19 17:24:58,282 INFO L899 garLoopResultBuilder]: For program point L449(lines 449 464) no Hoare annotation was computed. [2022-07-19 17:24:58,282 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 17:24:58,282 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 17:24:58,282 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 17:24:58,282 INFO L895 garLoopResultBuilder]: At program point L441(line 441) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:24:58,282 INFO L895 garLoopResultBuilder]: At program point L466(lines 419 468) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:24:58,282 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 435) no Hoare annotation was computed. [2022-07-19 17:24:58,282 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2022-07-19 17:24:58,282 INFO L899 garLoopResultBuilder]: For program point L429-1(lines 429 435) no Hoare annotation was computed. [2022-07-19 17:24:58,282 INFO L899 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2022-07-19 17:24:58,282 INFO L895 garLoopResultBuilder]: At program point L169(lines 165 171) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-19 17:24:58,282 INFO L895 garLoopResultBuilder]: At program point L326(lines 321 328) the Hoare annotation is: false [2022-07-19 17:24:58,283 INFO L899 garLoopResultBuilder]: For program point L421(lines 421 425) no Hoare annotation was computed. [2022-07-19 17:24:58,283 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 17:24:58,283 INFO L902 garLoopResultBuilder]: At program point L124(lines 117 126) the Hoare annotation is: true [2022-07-19 17:24:58,283 INFO L895 garLoopResultBuilder]: At program point L405(lines 400 407) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2022-07-19 17:24:58,283 INFO L902 garLoopResultBuilder]: At program point L149(lines 130 152) the Hoare annotation is: true [2022-07-19 17:24:58,283 INFO L895 garLoopResultBuilder]: At program point L397(lines 385 399) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:24:58,283 INFO L899 garLoopResultBuilder]: For program point L389(lines 389 395) no Hoare annotation was computed. [2022-07-19 17:24:58,283 INFO L899 garLoopResultBuilder]: For program point L389-2(lines 389 395) no Hoare annotation was computed. [2022-07-19 17:24:58,283 INFO L902 garLoopResultBuilder]: At program point L472(lines 409 476) the Hoare annotation is: true [2022-07-19 17:24:58,283 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 445) no Hoare annotation was computed. [2022-07-19 17:24:58,283 INFO L899 garLoopResultBuilder]: For program point L439-1(lines 439 445) no Hoare annotation was computed. [2022-07-19 17:24:58,284 INFO L895 garLoopResultBuilder]: At program point L113(lines 109 115) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-19 17:24:58,284 INFO L895 garLoopResultBuilder]: At program point L431(line 431) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:24:58,284 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 207 218) no Hoare annotation was computed. [2022-07-19 17:24:58,284 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 207 218) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-07-19 17:24:58,284 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 207 218) no Hoare annotation was computed. [2022-07-19 17:24:58,286 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-19 17:24:58,292 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 17:24:58,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 05:24:58 BoogieIcfgContainer [2022-07-19 17:24:58,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 17:24:58,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 17:24:58,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 17:24:58,318 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 17:24:58,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:24:56" (3/4) ... [2022-07-19 17:24:58,321 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 17:24:58,326 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-19 17:24:58,327 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-19 17:24:58,327 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-19 17:24:58,327 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-19 17:24:58,334 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2022-07-19 17:24:58,335 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-19 17:24:58,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-19 17:24:58,341 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-19 17:24:58,341 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 17:24:58,341 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:24:58,341 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:24:58,361 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-19 17:24:58,362 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-19 17:24:58,362 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 [2022-07-19 17:24:58,362 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\old(waterLevel) == waterLevel && !(0 == systemActive)) || !(pumpRunning == 0) [2022-07-19 17:24:58,363 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive) [2022-07-19 17:24:58,363 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || \result == 1) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) [2022-07-19 17:24:58,364 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 [2022-07-19 17:24:58,364 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) [2022-07-19 17:24:58,364 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == 0 && \old(waterLevel) == waterLevel) || !(pumpRunning == 0)) && (!(pumpRunning == 0) || !(\old(waterLevel) == 1)) [2022-07-19 17:24:58,387 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 17:24:58,388 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 17:24:58,389 INFO L158 Benchmark]: Toolchain (without parser) took 2819.96ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 60.0MB in the beginning and 80.9MB in the end (delta: -20.9MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2022-07-19 17:24:58,389 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 17:24:58,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 547.35ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 59.8MB in the beginning and 85.4MB in the end (delta: -25.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 17:24:58,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.91ms. Allocated memory is still 117.4MB. Free memory was 85.4MB in the beginning and 82.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:24:58,390 INFO L158 Benchmark]: Boogie Preprocessor took 35.65ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 81.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:24:58,390 INFO L158 Benchmark]: RCFGBuilder took 340.48ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 67.6MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 17:24:58,391 INFO L158 Benchmark]: TraceAbstraction took 1774.89ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 85.4MB in the end (delta: -18.5MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2022-07-19 17:24:58,391 INFO L158 Benchmark]: Witness Printer took 69.78ms. Allocated memory is still 117.4MB. Free memory was 85.1MB in the beginning and 80.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 17:24:58,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 547.35ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 59.8MB in the beginning and 85.4MB in the end (delta: -25.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.91ms. Allocated memory is still 117.4MB. Free memory was 85.4MB in the beginning and 82.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.65ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 81.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 340.48ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 67.6MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1774.89ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 85.4MB in the end (delta: -18.5MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Witness Printer took 69.78ms. Allocated memory is still 117.4MB. Free memory was 85.1MB in the beginning and 80.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 848]: 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 5 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 256 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 251 mSDsluCounter, 722 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 390 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 332 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 29 LocationsWithAnnotation, 161 PreInvPairs, 207 NumberOfFragments, 251 HoareAnnotationTreeSize, 161 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 29 FomulaSimplificationsInter, 868 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 294 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 409]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 263]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || \result == 1) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: (\old(waterLevel) == waterLevel && !(0 == systemActive)) || !(pumpRunning == 0) - InvariantResult [Line: 385]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 321]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive) - InvariantResult [Line: 853]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) - InvariantResult [Line: 340]: Loop Invariant Derived loop invariant: ((\result == 0 && \old(waterLevel) == waterLevel) || !(pumpRunning == 0)) && (!(pumpRunning == 0) || !(\old(waterLevel) == 1)) RESULT: Ultimate proved your program to be correct! [2022-07-19 17:24:58,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE