./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product05.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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_product05.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 54de820f8826d5a923d0e18bf6368976e6ed9c86 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 16:16:06,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 16:16:06,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 16:16:06,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 16:16:06,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 16:16:06,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 16:16:06,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 16:16:06,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 16:16:06,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 16:16:06,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 16:16:06,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 16:16:06,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 16:16:06,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 16:16:06,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 16:16:06,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 16:16:06,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 16:16:06,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 16:16:06,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 16:16:06,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 16:16:06,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 16:16:06,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 16:16:06,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 16:16:06,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 16:16:06,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 16:16:06,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 16:16:06,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 16:16:06,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 16:16:06,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 16:16:06,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 16:16:06,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 16:16:06,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 16:16:06,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 16:16:06,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 16:16:06,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 16:16:06,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 16:16:06,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 16:16:06,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 16:16:06,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 16:16:06,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 16:16:06,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 16:16:06,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 16:16:06,730 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 16:16:06,760 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 16:16:06,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 16:16:06,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 16:16:06,761 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 16:16:06,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 16:16:06,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 16:16:06,763 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 16:16:06,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 16:16:06,763 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 16:16:06,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 16:16:06,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 16:16:06,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 16:16:06,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 16:16:06,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 16:16:06,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 16:16:06,765 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 16:16:06,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 16:16:06,765 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 16:16:06,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 16:16:06,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 16:16:06,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 16:16:06,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 16:16:06,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 16:16:06,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 16:16:06,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 16:16:06,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 16:16:06,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 16:16:06,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 16:16:06,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 16:16:06,767 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 16:16:06,767 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54de820f8826d5a923d0e18bf6368976e6ed9c86 [2021-08-29 16:16:07,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 16:16:07,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 16:16:07,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 16:16:07,154 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 16:16:07,155 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 16:16:07,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product05.cil.c [2021-08-29 16:16:07,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ef3bf3d3/b874c41a3c26404fb5b97e41507fb873/FLAGffd79ab20 [2021-08-29 16:16:07,652 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 16:16:07,659 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product05.cil.c [2021-08-29 16:16:07,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ef3bf3d3/b874c41a3c26404fb5b97e41507fb873/FLAGffd79ab20 [2021-08-29 16:16:07,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ef3bf3d3/b874c41a3c26404fb5b97e41507fb873 [2021-08-29 16:16:07,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 16:16:07,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 16:16:07,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 16:16:07,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 16:16:07,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 16:16:07,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:16:07" (1/1) ... [2021-08-29 16:16:07,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71314b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:07, skipping insertion in model container [2021-08-29 16:16:07,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:16:07" (1/1) ... [2021-08-29 16:16:07,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 16:16:07,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 16:16:07,906 WARN L228 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_product05.cil.c[16318,16331] [2021-08-29 16:16:07,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 16:16:07,915 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 16:16:07,953 WARN L228 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_product05.cil.c[16318,16331] [2021-08-29 16:16:07,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 16:16:07,966 INFO L208 MainTranslator]: Completed translation [2021-08-29 16:16:07,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:07 WrapperNode [2021-08-29 16:16:07,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 16:16:07,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 16:16:07,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 16:16:07,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 16:16:07,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:07" (1/1) ... [2021-08-29 16:16:07,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:07" (1/1) ... [2021-08-29 16:16:08,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 16:16:08,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 16:16:08,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 16:16:08,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 16:16:08,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:07" (1/1) ... [2021-08-29 16:16:08,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:07" (1/1) ... [2021-08-29 16:16:08,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:07" (1/1) ... [2021-08-29 16:16:08,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:07" (1/1) ... [2021-08-29 16:16:08,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:07" (1/1) ... [2021-08-29 16:16:08,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:07" (1/1) ... [2021-08-29 16:16:08,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:07" (1/1) ... [2021-08-29 16:16:08,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 16:16:08,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 16:16:08,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 16:16:08,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 16:16:08,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:07" (1/1) ... [2021-08-29 16:16:08,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 16:16:08,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 16:16:08,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 16:16:08,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 16:16:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 16:16:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 16:16:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 16:16:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 16:16:08,560 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 16:16:08,560 INFO L299 CfgBuilder]: Removed 96 assume(true) statements. [2021-08-29 16:16:08,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:16:08 BoogieIcfgContainer [2021-08-29 16:16:08,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 16:16:08,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 16:16:08,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 16:16:08,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 16:16:08,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:16:07" (1/3) ... [2021-08-29 16:16:08,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14976bf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:16:08, skipping insertion in model container [2021-08-29 16:16:08,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:07" (2/3) ... [2021-08-29 16:16:08,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14976bf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:16:08, skipping insertion in model container [2021-08-29 16:16:08,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:16:08" (3/3) ... [2021-08-29 16:16:08,566 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product05.cil.c [2021-08-29 16:16:08,568 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 16:16:08,568 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-29 16:16:08,621 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 16:16:08,629 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 16:16:08,630 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-29 16:16:08,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 65 states have (on average 1.5692307692307692) internal successors, (102), 68 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:08,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 16:16:08,652 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:08,652 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:16:08,653 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:08,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:08,660 INFO L82 PathProgramCache]: Analyzing trace with hash -196866246, now seen corresponding path program 1 times [2021-08-29 16:16:08,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:08,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996115350] [2021-08-29 16:16:08,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:08,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:08,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:08,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:08,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996115350] [2021-08-29 16:16:08,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996115350] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:08,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:08,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 16:16:08,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566058767] [2021-08-29 16:16:08,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 16:16:08,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:08,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 16:16:08,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 16:16:08,941 INFO L87 Difference]: Start difference. First operand has 69 states, 65 states have (on average 1.5692307692307692) internal successors, (102), 68 states have internal predecessors, (102), 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) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:09,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:09,132 INFO L93 Difference]: Finished difference Result 132 states and 197 transitions. [2021-08-29 16:16:09,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 16:16:09,135 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) Word has length 16 [2021-08-29 16:16:09,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:09,142 INFO L225 Difference]: With dead ends: 132 [2021-08-29 16:16:09,142 INFO L226 Difference]: Without dead ends: 65 [2021-08-29 16:16:09,145 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 16:16:09,148 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 131.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.79ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 163.44ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:09,149 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 95 Unknown, 0 Unchecked, 0.79ms Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 163.44ms Time] [2021-08-29 16:16:09,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-08-29 16:16:09,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-08-29 16:16:09,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 64 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:09,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2021-08-29 16:16:09,180 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 90 transitions. Word has length 16 [2021-08-29 16:16:09,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:09,181 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-08-29 16:16:09,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:09,181 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 90 transitions. [2021-08-29 16:16:09,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-29 16:16:09,182 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:09,183 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:16:09,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 16:16:09,183 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:09,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:09,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1243623143, now seen corresponding path program 1 times [2021-08-29 16:16:09,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:09,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426102378] [2021-08-29 16:16:09,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:09,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:09,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:09,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:09,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426102378] [2021-08-29 16:16:09,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426102378] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:09,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:09,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 16:16:09,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227959535] [2021-08-29 16:16:09,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 16:16:09,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:09,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 16:16:09,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:16:09,276 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:09,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:09,356 INFO L93 Difference]: Finished difference Result 65 states and 90 transitions. [2021-08-29 16:16:09,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 16:16:09,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) Word has length 17 [2021-08-29 16:16:09,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:09,358 INFO L225 Difference]: With dead ends: 65 [2021-08-29 16:16:09,359 INFO L226 Difference]: Without dead ends: 31 [2021-08-29 16:16:09,360 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.77ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:16:09,361 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 36 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.43ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.30ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:09,362 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 0 Invalid, 48 Unknown, 0 Unchecked, 0.43ms Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 74.30ms Time] [2021-08-29 16:16:09,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-08-29 16:16:09,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-08-29 16:16:09,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 30 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:09,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2021-08-29 16:16:09,369 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 17 [2021-08-29 16:16:09,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:09,369 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2021-08-29 16:16:09,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:09,370 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2021-08-29 16:16:09,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-29 16:16:09,371 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:09,371 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:16:09,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 16:16:09,372 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:09,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:09,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1744986874, now seen corresponding path program 1 times [2021-08-29 16:16:09,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:09,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310410451] [2021-08-29 16:16:09,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:09,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:09,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:09,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:09,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310410451] [2021-08-29 16:16:09,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310410451] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:09,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:09,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 16:16:09,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565995179] [2021-08-29 16:16:09,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 16:16:09,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:09,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 16:16:09,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-29 16:16:09,465 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:09,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:09,587 INFO L93 Difference]: Finished difference Result 56 states and 80 transitions. [2021-08-29 16:16:09,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 16:16:09,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) Word has length 22 [2021-08-29 16:16:09,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:09,588 INFO L225 Difference]: With dead ends: 56 [2021-08-29 16:16:09,588 INFO L226 Difference]: Without dead ends: 31 [2021-08-29 16:16:09,588 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.01ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-29 16:16:09,589 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 118 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.01ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.34ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:09,590 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 0 Invalid, 48 Unknown, 0 Unchecked, 1.01ms Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 103.34ms Time] [2021-08-29 16:16:09,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-08-29 16:16:09,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-08-29 16:16:09,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:09,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2021-08-29 16:16:09,593 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 22 [2021-08-29 16:16:09,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:09,593 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2021-08-29 16:16:09,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:09,594 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2021-08-29 16:16:09,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-29 16:16:09,594 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:09,594 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:16:09,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 16:16:09,595 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:09,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:09,595 INFO L82 PathProgramCache]: Analyzing trace with hash 75210305, now seen corresponding path program 1 times [2021-08-29 16:16:09,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:09,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193020325] [2021-08-29 16:16:09,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:09,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:09,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:09,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:09,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193020325] [2021-08-29 16:16:09,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193020325] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:09,653 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:09,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-29 16:16:09,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034930667] [2021-08-29 16:16:09,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 16:16:09,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:09,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 16:16:09,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-29 16:16:09,655 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:10,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:10,098 INFO L93 Difference]: Finished difference Result 178 states and 266 transitions. [2021-08-29 16:16:10,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-29 16:16:10,099 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 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) Word has length 23 [2021-08-29 16:16:10,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:10,100 INFO L225 Difference]: With dead ends: 178 [2021-08-29 16:16:10,100 INFO L226 Difference]: Without dead ends: 153 [2021-08-29 16:16:10,101 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 64.74ms TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-08-29 16:16:10,101 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 271 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 294.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.84ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 366.27ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:10,102 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 0 Invalid, 457 Unknown, 0 Unchecked, 3.84ms Time], IncrementalHoareTripleChecker [15 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 366.27ms Time] [2021-08-29 16:16:10,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-08-29 16:16:10,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 72. [2021-08-29 16:16:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.408450704225352) internal successors, (100), 71 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:10,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 100 transitions. [2021-08-29 16:16:10,114 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 100 transitions. Word has length 23 [2021-08-29 16:16:10,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:10,115 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 100 transitions. [2021-08-29 16:16:10,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:10,115 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2021-08-29 16:16:10,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-29 16:16:10,117 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:10,117 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:16:10,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 16:16:10,118 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:10,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:10,119 INFO L82 PathProgramCache]: Analyzing trace with hash -840805216, now seen corresponding path program 1 times [2021-08-29 16:16:10,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:10,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084570392] [2021-08-29 16:16:10,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:10,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:10,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:10,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:10,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084570392] [2021-08-29 16:16:10,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084570392] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:10,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:10,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 16:16:10,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741499926] [2021-08-29 16:16:10,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 16:16:10,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:10,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 16:16:10,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:16:10,171 INFO L87 Difference]: Start difference. First operand 72 states and 100 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:10,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:10,222 INFO L93 Difference]: Finished difference Result 126 states and 177 transitions. [2021-08-29 16:16:10,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 16:16:10,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) Word has length 24 [2021-08-29 16:16:10,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:10,225 INFO L225 Difference]: With dead ends: 126 [2021-08-29 16:16:10,225 INFO L226 Difference]: Without dead ends: 60 [2021-08-29 16:16:10,225 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.36ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:16:10,229 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.39ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.76ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:10,230 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 35 Unknown, 0 Unchecked, 0.39ms Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 43.76ms Time] [2021-08-29 16:16:10,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-08-29 16:16:10,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-08-29 16:16:10,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.305084745762712) internal successors, (77), 59 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:10,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 77 transitions. [2021-08-29 16:16:10,237 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 77 transitions. Word has length 24 [2021-08-29 16:16:10,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:10,238 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 77 transitions. [2021-08-29 16:16:10,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:10,238 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2021-08-29 16:16:10,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-08-29 16:16:10,239 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:10,239 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:16:10,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 16:16:10,239 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:10,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:10,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1260992860, now seen corresponding path program 1 times [2021-08-29 16:16:10,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:10,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085321528] [2021-08-29 16:16:10,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:10,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:10,289 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:10,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:10,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085321528] [2021-08-29 16:16:10,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085321528] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 16:16:10,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680067940] [2021-08-29 16:16:10,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:10,290 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 16:16:10,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 16:16:10,292 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 16:16:10,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-29 16:16:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:10,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 16:16:10,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 16:16:10,520 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:10,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 16:16:10,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680067940] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:10,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 16:16:10,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-08-29 16:16:10,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128277706] [2021-08-29 16:16:10,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 16:16:10,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:10,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 16:16:10,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:16:10,521 INFO L87 Difference]: Start difference. First operand 60 states and 77 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:10,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:10,643 INFO L93 Difference]: Finished difference Result 77 states and 100 transitions. [2021-08-29 16:16:10,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 16:16:10,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) Word has length 39 [2021-08-29 16:16:10,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:10,644 INFO L225 Difference]: With dead ends: 77 [2021-08-29 16:16:10,644 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 16:16:10,644 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.04ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:16:10,645 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 25 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.34ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 116.80ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:10,645 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 0 Invalid, 78 Unknown, 0 Unchecked, 0.34ms Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 116.80ms Time] [2021-08-29 16:16:10,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 16:16:10,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 16:16:10,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:10,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 16:16:10,646 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2021-08-29 16:16:10,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:10,646 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 16:16:10,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:10,647 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 16:16:10,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 16:16:10,649 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-08-29 16:16:10,650 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-08-29 16:16:10,650 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-08-29 16:16:10,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-29 16:16:10,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-08-29 16:16:10,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 16:16:10,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,932 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,932 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:10,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:11,216 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 829) no Hoare annotation was computed. [2021-08-29 16:16:11,216 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 16:16:11,216 INFO L858 garLoopResultBuilder]: For program point L829(line 829) no Hoare annotation was computed. [2021-08-29 16:16:11,216 INFO L858 garLoopResultBuilder]: For program point L829-1(line 829) no Hoare annotation was computed. [2021-08-29 16:16:11,216 INFO L858 garLoopResultBuilder]: For program point L829-2(line 829) no Hoare annotation was computed. [2021-08-29 16:16:11,216 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 589) no Hoare annotation was computed. [2021-08-29 16:16:11,217 INFO L861 garLoopResultBuilder]: At program point L582-1(lines 582 589) the Hoare annotation is: true [2021-08-29 16:16:11,217 INFO L858 garLoopResultBuilder]: For program point L54(lines 54 58) no Hoare annotation was computed. [2021-08-29 16:16:11,217 INFO L858 garLoopResultBuilder]: For program point L54-3(lines 54 58) no Hoare annotation was computed. [2021-08-29 16:16:11,217 INFO L858 garLoopResultBuilder]: For program point L54-6(lines 54 58) no Hoare annotation was computed. [2021-08-29 16:16:11,217 INFO L854 garLoopResultBuilder]: At program point L748(lines 741 751) the Hoare annotation is: false [2021-08-29 16:16:11,217 INFO L854 garLoopResultBuilder]: At program point L748-1(lines 741 751) the Hoare annotation is: false [2021-08-29 16:16:11,217 INFO L854 garLoopResultBuilder]: At program point L748-2(lines 741 751) the Hoare annotation is: false [2021-08-29 16:16:11,217 INFO L858 garLoopResultBuilder]: For program point L616(lines 616 622) no Hoare annotation was computed. [2021-08-29 16:16:11,217 INFO L854 garLoopResultBuilder]: At program point L616-1(lines 616 622) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= ULTIMATE.start_main_~tmp~3 ~systemActive~0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse2 .cse3 (= ~waterLevel~0 1)))) [2021-08-29 16:16:11,217 INFO L854 garLoopResultBuilder]: At program point L864(lines 859 867) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-29 16:16:11,217 INFO L854 garLoopResultBuilder]: At program point L123(lines 118 126) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= ULTIMATE.start_main_~tmp~3 ~systemActive~0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse3 .cse4 (= ~waterLevel~0 1)))) [2021-08-29 16:16:11,217 INFO L854 garLoopResultBuilder]: At program point L123-1(lines 118 126) the Hoare annotation is: false [2021-08-29 16:16:11,217 INFO L854 garLoopResultBuilder]: At program point L123-2(lines 118 126) the Hoare annotation is: false [2021-08-29 16:16:11,217 INFO L854 garLoopResultBuilder]: At program point L652(lines 605 653) the Hoare annotation is: false [2021-08-29 16:16:11,218 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 16:16:11,218 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 647) no Hoare annotation was computed. [2021-08-29 16:16:11,218 INFO L854 garLoopResultBuilder]: At program point L91(lines 86 94) the Hoare annotation is: false [2021-08-29 16:16:11,218 INFO L854 garLoopResultBuilder]: At program point L91-1(lines 86 94) the Hoare annotation is: false [2021-08-29 16:16:11,218 INFO L854 garLoopResultBuilder]: At program point L91-2(lines 86 94) the Hoare annotation is: false [2021-08-29 16:16:11,218 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 829) no Hoare annotation was computed. [2021-08-29 16:16:11,219 INFO L854 garLoopResultBuilder]: At program point L555(lines 551 557) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~systemActive~0) (= ULTIMATE.start_main_~tmp~3 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-29 16:16:11,219 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 721) no Hoare annotation was computed. [2021-08-29 16:16:11,219 INFO L858 garLoopResultBuilder]: For program point L704-1(lines 704 721) no Hoare annotation was computed. [2021-08-29 16:16:11,219 INFO L858 garLoopResultBuilder]: For program point L704-2(lines 704 721) no Hoare annotation was computed. [2021-08-29 16:16:11,219 INFO L854 garLoopResultBuilder]: At program point L506-2(lines 506 520) the Hoare annotation is: false [2021-08-29 16:16:11,220 INFO L854 garLoopResultBuilder]: At program point L672(lines 671 690) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= ULTIMATE.start_main_~tmp~3 ~systemActive~0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse2 .cse3 (= ~waterLevel~0 1)))) [2021-08-29 16:16:11,220 INFO L858 garLoopResultBuilder]: For program point L672-1(lines 672 678) no Hoare annotation was computed. [2021-08-29 16:16:11,220 INFO L854 garLoopResultBuilder]: At program point L672-2(lines 671 690) the Hoare annotation is: false [2021-08-29 16:16:11,220 INFO L854 garLoopResultBuilder]: At program point L672-3(lines 671 690) the Hoare annotation is: false [2021-08-29 16:16:11,220 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 16:16:11,220 INFO L858 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2021-08-29 16:16:11,220 INFO L858 garLoopResultBuilder]: For program point L78(lines 78 82) no Hoare annotation was computed. [2021-08-29 16:16:11,220 INFO L858 garLoopResultBuilder]: For program point L607(lines 606 651) no Hoare annotation was computed. [2021-08-29 16:16:11,220 INFO L861 garLoopResultBuilder]: At program point L591(lines 572 594) the Hoare annotation is: true [2021-08-29 16:16:11,220 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 612) no Hoare annotation was computed. [2021-08-29 16:16:11,220 INFO L854 garLoopResultBuilder]: At program point L856(lines 1 867) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-29 16:16:11,220 INFO L854 garLoopResultBuilder]: At program point L757(lines 752 760) the Hoare annotation is: false [2021-08-29 16:16:11,220 INFO L854 garLoopResultBuilder]: At program point L757-1(lines 752 760) the Hoare annotation is: false [2021-08-29 16:16:11,220 INFO L854 garLoopResultBuilder]: At program point L757-2(lines 752 760) the Hoare annotation is: false [2021-08-29 16:16:11,220 INFO L858 garLoopResultBuilder]: For program point L807(lines 807 820) no Hoare annotation was computed. [2021-08-29 16:16:11,220 INFO L854 garLoopResultBuilder]: At program point L807-1(lines 1 867) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= ULTIMATE.start_main_~tmp~3 ~systemActive~0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 0)) (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse2 .cse3) (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse2 .cse3 (= ~waterLevel~0 1)))) [2021-08-29 16:16:11,221 INFO L858 garLoopResultBuilder]: For program point L807-2(lines 807 820) no Hoare annotation was computed. [2021-08-29 16:16:11,221 INFO L858 garLoopResultBuilder]: For program point L708(lines 708 716) no Hoare annotation was computed. [2021-08-29 16:16:11,221 INFO L854 garLoopResultBuilder]: At program point L807-3(lines 1 867) the Hoare annotation is: false [2021-08-29 16:16:11,221 INFO L858 garLoopResultBuilder]: For program point L708-1(lines 708 716) no Hoare annotation was computed. [2021-08-29 16:16:11,221 INFO L858 garLoopResultBuilder]: For program point L807-4(lines 807 820) no Hoare annotation was computed. [2021-08-29 16:16:11,221 INFO L858 garLoopResultBuilder]: For program point L642(lines 642 646) no Hoare annotation was computed. [2021-08-29 16:16:11,221 INFO L858 garLoopResultBuilder]: For program point L708-2(lines 708 716) no Hoare annotation was computed. [2021-08-29 16:16:11,221 INFO L854 garLoopResultBuilder]: At program point L807-5(lines 1 867) the Hoare annotation is: false [2021-08-29 16:16:11,221 INFO L858 garLoopResultBuilder]: For program point L642-2(lines 672 678) no Hoare annotation was computed. [2021-08-29 16:16:11,221 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 514) no Hoare annotation was computed. [2021-08-29 16:16:11,221 INFO L858 garLoopResultBuilder]: For program point L510-1(lines 672 678) no Hoare annotation was computed. [2021-08-29 16:16:11,221 INFO L858 garLoopResultBuilder]: For program point L626(lines 626 632) no Hoare annotation was computed. [2021-08-29 16:16:11,221 INFO L854 garLoopResultBuilder]: At program point L626-1(lines 626 632) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= ULTIMATE.start_main_~tmp~3 ~systemActive~0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse2 .cse3 (= ~waterLevel~0 1)))) [2021-08-29 16:16:11,221 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 16:16:11,221 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 829) no Hoare annotation was computed. [2021-08-29 16:16:11,221 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-08-29 16:16:11,221 INFO L858 garLoopResultBuilder]: For program point L811(lines 811 817) no Hoare annotation was computed. [2021-08-29 16:16:11,221 INFO L858 garLoopResultBuilder]: For program point L811-2(lines 811 817) no Hoare annotation was computed. [2021-08-29 16:16:11,222 INFO L854 garLoopResultBuilder]: At program point L679(lines 679 685) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= ULTIMATE.start_main_~tmp~3 ~systemActive~0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse2 .cse3 (= ~waterLevel~0 1)))) [2021-08-29 16:16:11,222 INFO L858 garLoopResultBuilder]: For program point L811-4(lines 811 817) no Hoare annotation was computed. [2021-08-29 16:16:11,222 INFO L854 garLoopResultBuilder]: At program point L679-1(lines 679 685) the Hoare annotation is: false [2021-08-29 16:16:11,222 INFO L854 garLoopResultBuilder]: At program point L679-2(lines 679 685) the Hoare annotation is: false [2021-08-29 16:16:11,224 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 16:16:11,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:16:11 BoogieIcfgContainer [2021-08-29 16:16:11,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 16:16:11,251 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 16:16:11,251 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 16:16:11,251 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 16:16:11,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:16:08" (3/4) ... [2021-08-29 16:16:11,253 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 16:16:11,265 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-08-29 16:16:11,265 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-08-29 16:16:11,266 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-08-29 16:16:11,266 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-08-29 16:16:11,266 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-29 16:16:11,267 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 16:16:11,267 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 16:16:11,281 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == waterLevel) && 1 == systemActive) && waterLevel == 1 [2021-08-29 16:16:11,281 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == waterLevel) && 1 == systemActive) && tmp == systemActive) && waterLevel == 1 [2021-08-29 16:16:11,281 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && !(tmp == 0)) && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && tmp == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == waterLevel) && 1 == systemActive) && tmp == systemActive) && waterLevel == 1) [2021-08-29 16:16:11,282 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && 2 <= waterLevel) && 1 == systemActive) && tmp == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == waterLevel) && 1 == systemActive) && tmp == systemActive) && waterLevel == 1) [2021-08-29 16:16:11,282 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && 2 <= waterLevel) && 1 == systemActive) && tmp == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == waterLevel) && 1 == systemActive) && tmp == systemActive) && waterLevel == 1) [2021-08-29 16:16:11,283 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && 2 <= waterLevel) && 1 == systemActive) && tmp == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == waterLevel) && 1 == systemActive) && tmp == systemActive) && waterLevel == 1) [2021-08-29 16:16:11,283 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && 2 <= waterLevel) && 1 == systemActive) && tmp == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == waterLevel) && 1 == systemActive) && tmp == systemActive) && waterLevel == 1) [2021-08-29 16:16:11,285 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && tmp == systemActive) || ((((((splverifierCounter == 0 && pumpRunning == 0) && !(\result == 0)) && \result == waterLevel) && 1 == systemActive) && tmp == systemActive) && waterLevel == 1) [2021-08-29 16:16:11,308 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 16:16:11,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 16:16:11,308 INFO L158 Benchmark]: Toolchain (without parser) took 3620.52ms. Allocated memory was 54.5MB in the beginning and 94.4MB in the end (delta: 39.8MB). Free memory was 31.2MB in the beginning and 61.0MB in the end (delta: -29.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2021-08-29 16:16:11,308 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory is still 36.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 16:16:11,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.54ms. Allocated memory was 54.5MB in the beginning and 77.6MB in the end (delta: 23.1MB). Free memory was 31.0MB in the beginning and 53.8MB in the end (delta: -22.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2021-08-29 16:16:11,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.97ms. Allocated memory is still 77.6MB. Free memory was 53.8MB in the beginning and 50.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 16:16:11,309 INFO L158 Benchmark]: Boogie Preprocessor took 35.86ms. Allocated memory is still 77.6MB. Free memory was 50.7MB in the beginning and 48.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 16:16:11,309 INFO L158 Benchmark]: RCFGBuilder took 521.56ms. Allocated memory is still 77.6MB. Free memory was 48.6MB in the beginning and 56.1MB in the end (delta: -7.5MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2021-08-29 16:16:11,309 INFO L158 Benchmark]: TraceAbstraction took 2687.95ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 55.6MB in the beginning and 67.2MB in the end (delta: -11.6MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. [2021-08-29 16:16:11,309 INFO L158 Benchmark]: Witness Printer took 57.29ms. Allocated memory is still 94.4MB. Free memory was 67.2MB in the beginning and 61.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-29 16:16:11,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory is still 36.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.54ms. Allocated memory was 54.5MB in the beginning and 77.6MB in the end (delta: 23.1MB). Free memory was 31.0MB in the beginning and 53.8MB in the end (delta: -22.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.97ms. Allocated memory is still 77.6MB. Free memory was 53.8MB in the beginning and 50.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.86ms. Allocated memory is still 77.6MB. Free memory was 50.7MB in the beginning and 48.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 521.56ms. Allocated memory is still 77.6MB. Free memory was 48.6MB in the beginning and 56.1MB in the end (delta: -7.5MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2687.95ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 55.6MB in the beginning and 67.2MB in the end (delta: -11.6MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. * Witness Printer took 57.29ms. Allocated memory is still 94.4MB. Free memory was 67.2MB in the beginning and 61.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 829]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 829]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 829]: 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 1 procedures, 69 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2604.33ms, OverallIterations: 6, TraceHistogramMax: 2, EmptinessCheckTime: 18.10ms, AutomataDifference: 1088.00ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 365.05ms, InitialAbstractionConstructionTime: 9.24ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 470 SdHoareTripleChecker+Valid, 867.91ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 470 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 687.73ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 342 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 743 IncrementalHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 0 mSDtfsCounter, 743 mSolverCounterSat, 6.81ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 112.96ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=4, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 50.32ms AutomataMinimizationTime, 6 MinimizatonAttempts, 81 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 30 LocationsWithAnnotation, 30 PreInvPairs, 44 NumberOfFragments, 310 HoareAnnotationTreeSize, 30 FomulaSimplifications, 352 FormulaSimplificationTreeSizeReduction, 83.75ms HoareSimplificationTime, 30 FomulaSimplificationsInter, 96 FormulaSimplificationTreeSizeReductionInter, 273.61ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 38.24ms SsaConstructionTime, 215.80ms SatisfiabilityAnalysisTime, 431.33ms InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 399 SizeOfPredicates, 0 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 25/30 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 3 specifications checked. All of them hold - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 741]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 741]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 506]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 671]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && 2 <= waterLevel) && 1 == systemActive) && tmp == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == waterLevel) && 1 == systemActive) && tmp == systemActive) && waterLevel == 1) - InvariantResult [Line: 679]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 859]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == waterLevel) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 671]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 679]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 741]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 671]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 626]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && 2 <= waterLevel) && 1 == systemActive) && tmp == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == waterLevel) && 1 == systemActive) && tmp == systemActive) && waterLevel == 1) - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && tmp == systemActive) || ((((((splverifierCounter == 0 && pumpRunning == 0) && !(\result == 0)) && \result == waterLevel) && 1 == systemActive) && tmp == systemActive) && waterLevel == 1) - InvariantResult [Line: 752]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && !(tmp == 0)) && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && tmp == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == waterLevel) && 1 == systemActive) && tmp == systemActive) && waterLevel == 1) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && 2 <= waterLevel) && 1 == systemActive) && tmp == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == waterLevel) && 1 == systemActive) && tmp == systemActive) && waterLevel == 1) - InvariantResult [Line: 752]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == waterLevel) && 1 == systemActive) && tmp == systemActive) && waterLevel == 1 - InvariantResult [Line: 605]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 752]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 679]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && 2 <= waterLevel) && 1 == systemActive) && tmp == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == waterLevel) && 1 == systemActive) && tmp == systemActive) && waterLevel == 1) RESULT: Ultimate proved your program to be correct! [2021-08-29 16:16:11,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...