./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/bin/uautomizer --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 cf24413c974632111c219883460f59cc521163aa ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:56:20,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:20,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:20,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:20,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:20,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:20,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:20,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:20,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:20,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:20,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:20,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:20,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:20,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:20,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:20,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:20,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:20,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:20,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:20,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:20,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:20,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:20,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:20,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:20,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:20,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:20,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:20,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:20,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:20,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:20,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:20,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:20,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:20,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:20,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:20,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:20,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:20,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:20,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:20,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:20,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:20,764 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:56:20,801 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:20,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:20,803 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:20,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:20,803 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:20,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:20,804 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:56:20,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:56:20,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:56:20,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:20,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:56:20,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:56:20,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:56:20,805 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:56:20,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:20,806 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:20,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:56:20,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:20,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:20,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:56:20,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:56:20,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:20,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:20,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:56:20,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:56:20,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:56:20,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:56:20,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:56:20,809 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:20,809 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:/tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf24413c974632111c219883460f59cc521163aa [2020-11-28 02:56:21,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:21,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:21,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:21,218 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:21,219 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:21,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2020-11-28 02:56:21,296 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/bin/uautomizer/data/b4d8e6149/8e6cb64b157948a9ad4b2144493794bf/FLAG7ea2465f8 [2020-11-28 02:56:22,083 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:22,083 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2020-11-28 02:56:22,101 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/bin/uautomizer/data/b4d8e6149/8e6cb64b157948a9ad4b2144493794bf/FLAG7ea2465f8 [2020-11-28 02:56:22,368 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/bin/uautomizer/data/b4d8e6149/8e6cb64b157948a9ad4b2144493794bf [2020-11-28 02:56:22,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:22,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:22,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:22,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:22,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:22,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@291b5a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22, skipping insertion in model container [2020-11-28 02:56:22,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:22,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:22,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:22,943 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:56:23,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:23,093 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:56:23,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:23 WrapperNode [2020-11-28 02:56:23,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:23,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:23,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:56:23,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:56:23,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:23" (1/1) ... [2020-11-28 02:56:23,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:23" (1/1) ... [2020-11-28 02:56:23,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:23,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:56:23,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:56:23,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:56:23,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:23" (1/1) ... [2020-11-28 02:56:23,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:23" (1/1) ... [2020-11-28 02:56:23,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:23" (1/1) ... [2020-11-28 02:56:23,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:23" (1/1) ... [2020-11-28 02:56:23,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:23" (1/1) ... [2020-11-28 02:56:23,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:23" (1/1) ... [2020-11-28 02:56:23,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:23" (1/1) ... [2020-11-28 02:56:23,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:56:23,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:56:23,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:56:23,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:56:23,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:56:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:56:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:56:23,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:56:24,691 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:56:24,691 INFO L298 CfgBuilder]: Removed 210 assume(true) statements. [2020-11-28 02:56:24,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:24 BoogieIcfgContainer [2020-11-28 02:56:24,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:56:24,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:56:24,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:56:24,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:56:24,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:22" (1/3) ... [2020-11-28 02:56:24,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1854bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:24, skipping insertion in model container [2020-11-28 02:56:24,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:23" (2/3) ... [2020-11-28 02:56:24,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1854bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:24, skipping insertion in model container [2020-11-28 02:56:24,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:24" (3/3) ... [2020-11-28 02:56:24,703 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2020-11-28 02:56:24,716 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:56:24,721 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 02:56:24,735 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 02:56:24,764 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:56:24,764 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:56:24,764 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:56:24,765 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:56:24,765 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:56:24,765 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:56:24,765 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:56:24,765 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:56:24,785 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2020-11-28 02:56:24,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 02:56:24,792 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:24,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:24,793 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:24,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:24,799 INFO L82 PathProgramCache]: Analyzing trace with hash -2125503066, now seen corresponding path program 1 times [2020-11-28 02:56:24,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:24,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009251773] [2020-11-28 02:56:24,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:25,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:25,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009251773] [2020-11-28 02:56:25,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:25,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:56:25,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697788921] [2020-11-28 02:56:25,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 02:56:25,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:25,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 02:56:25,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:56:25,181 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 2 states. [2020-11-28 02:56:25,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:25,246 INFO L93 Difference]: Finished difference Result 283 states and 422 transitions. [2020-11-28 02:56:25,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 02:56:25,251 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 02:56:25,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:25,269 INFO L225 Difference]: With dead ends: 283 [2020-11-28 02:56:25,269 INFO L226 Difference]: Without dead ends: 139 [2020-11-28 02:56:25,292 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:56:25,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-11-28 02:56:25,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2020-11-28 02:56:25,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-11-28 02:56:25,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2020-11-28 02:56:25,349 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18 [2020-11-28 02:56:25,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:25,350 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2020-11-28 02:56:25,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 02:56:25,351 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2020-11-28 02:56:25,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 02:56:25,353 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:25,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:25,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:56:25,354 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:25,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:25,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1757209084, now seen corresponding path program 1 times [2020-11-28 02:56:25,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:25,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270187649] [2020-11-28 02:56:25,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:25,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:25,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270187649] [2020-11-28 02:56:25,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:25,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:25,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435272945] [2020-11-28 02:56:25,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:25,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:25,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:25,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:25,490 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand 3 states. [2020-11-28 02:56:25,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:25,529 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2020-11-28 02:56:25,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:25,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 02:56:25,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:25,536 INFO L225 Difference]: With dead ends: 139 [2020-11-28 02:56:25,536 INFO L226 Difference]: Without dead ends: 57 [2020-11-28 02:56:25,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:25,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-28 02:56:25,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-11-28 02:56:25,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-28 02:56:25,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2020-11-28 02:56:25,545 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2020-11-28 02:56:25,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:25,545 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2020-11-28 02:56:25,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:25,546 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2020-11-28 02:56:25,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 02:56:25,547 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:25,547 INFO L422 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] [2020-11-28 02:56:25,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:56:25,548 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:25,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:25,549 INFO L82 PathProgramCache]: Analyzing trace with hash 691260675, now seen corresponding path program 1 times [2020-11-28 02:56:25,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:25,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976470291] [2020-11-28 02:56:25,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:25,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:25,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:25,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976470291] [2020-11-28 02:56:25,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:25,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:56:25,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717600921] [2020-11-28 02:56:25,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:56:25,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:25,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:56:25,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:25,726 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand 5 states. [2020-11-28 02:56:25,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:25,890 INFO L93 Difference]: Finished difference Result 133 states and 195 transitions. [2020-11-28 02:56:25,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:56:25,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-28 02:56:25,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:25,894 INFO L225 Difference]: With dead ends: 133 [2020-11-28 02:56:25,897 INFO L226 Difference]: Without dead ends: 82 [2020-11-28 02:56:25,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 02:56:25,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-11-28 02:56:25,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2020-11-28 02:56:25,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-28 02:56:25,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2020-11-28 02:56:25,926 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 24 [2020-11-28 02:56:25,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:25,926 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2020-11-28 02:56:25,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:56:25,927 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2020-11-28 02:56:25,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 02:56:25,930 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:25,930 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:25,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:56:25,930 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:25,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:25,932 INFO L82 PathProgramCache]: Analyzing trace with hash 2134675258, now seen corresponding path program 1 times [2020-11-28 02:56:25,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:25,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214959391] [2020-11-28 02:56:25,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:26,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:26,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214959391] [2020-11-28 02:56:26,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:26,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:56:26,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621005944] [2020-11-28 02:56:26,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:26,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:26,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:26,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:26,055 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand 3 states. [2020-11-28 02:56:26,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:26,147 INFO L93 Difference]: Finished difference Result 173 states and 255 transitions. [2020-11-28 02:56:26,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:26,147 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-11-28 02:56:26,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:26,149 INFO L225 Difference]: With dead ends: 173 [2020-11-28 02:56:26,149 INFO L226 Difference]: Without dead ends: 101 [2020-11-28 02:56:26,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:26,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-11-28 02:56:26,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2020-11-28 02:56:26,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-28 02:56:26,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2020-11-28 02:56:26,183 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 26 [2020-11-28 02:56:26,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:26,183 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2020-11-28 02:56:26,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:26,184 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2020-11-28 02:56:26,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 02:56:26,185 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:26,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:26,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:56:26,186 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:26,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:26,188 INFO L82 PathProgramCache]: Analyzing trace with hash 127920088, now seen corresponding path program 1 times [2020-11-28 02:56:26,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:26,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799825556] [2020-11-28 02:56:26,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:26,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:26,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799825556] [2020-11-28 02:56:26,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:26,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:56:26,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313898437] [2020-11-28 02:56:26,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:56:26,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:26,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:56:26,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:26,318 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand 5 states. [2020-11-28 02:56:26,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:26,494 INFO L93 Difference]: Finished difference Result 515 states and 751 transitions. [2020-11-28 02:56:26,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 02:56:26,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-28 02:56:26,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:26,503 INFO L225 Difference]: With dead ends: 515 [2020-11-28 02:56:26,503 INFO L226 Difference]: Without dead ends: 422 [2020-11-28 02:56:26,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 02:56:26,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-11-28 02:56:26,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 167. [2020-11-28 02:56:26,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-11-28 02:56:26,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 233 transitions. [2020-11-28 02:56:26,571 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 233 transitions. Word has length 27 [2020-11-28 02:56:26,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:26,572 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 233 transitions. [2020-11-28 02:56:26,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:56:26,572 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 233 transitions. [2020-11-28 02:56:26,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 02:56:26,574 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:26,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:26,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 02:56:26,575 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:26,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:26,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1572343654, now seen corresponding path program 1 times [2020-11-28 02:56:26,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:26,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796464084] [2020-11-28 02:56:26,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:26,662 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:26,765 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:26,833 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:56:26,834 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:56:26,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 02:56:26,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:26 BoogieIcfgContainer [2020-11-28 02:56:26,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:56:26,970 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:56:26,970 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:56:26,970 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:56:26,971 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:24" (3/4) ... [2020-11-28 02:56:26,973 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 02:56:27,058 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3cb514c6-db7f-4a9d-855d-e11114cf48a1/bin/uautomizer/witness.graphml [2020-11-28 02:56:27,058 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:56:27,060 INFO L168 Benchmark]: Toolchain (without parser) took 4678.17 ms. Allocated memory was 136.3 MB in the beginning and 172.0 MB in the end (delta: 35.7 MB). Free memory was 109.3 MB in the beginning and 103.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:27,061 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 96.5 MB. Free memory was 53.7 MB in the beginning and 53.7 MB in the end (delta: 50.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:27,062 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.54 ms. Allocated memory is still 136.3 MB. Free memory was 109.0 MB in the beginning and 101.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:27,063 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.02 ms. Allocated memory is still 136.3 MB. Free memory was 101.5 MB in the beginning and 97.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:27,063 INFO L168 Benchmark]: Boogie Preprocessor took 85.29 ms. Allocated memory is still 136.3 MB. Free memory was 97.3 MB in the beginning and 94.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:27,064 INFO L168 Benchmark]: RCFGBuilder took 1399.10 ms. Allocated memory is still 136.3 MB. Free memory was 94.2 MB in the beginning and 86.3 MB in the end (delta: 7.9 MB). Peak memory consumption was 50.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:27,064 INFO L168 Benchmark]: TraceAbstraction took 2274.49 ms. Allocated memory was 136.3 MB in the beginning and 172.0 MB in the end (delta: 35.7 MB). Free memory was 85.7 MB in the beginning and 113.9 MB in the end (delta: -28.2 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:27,065 INFO L168 Benchmark]: Witness Printer took 88.08 ms. Allocated memory is still 172.0 MB. Free memory was 113.9 MB in the beginning and 103.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:27,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 96.5 MB. Free memory was 53.7 MB in the beginning and 53.7 MB in the end (delta: 50.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 713.54 ms. Allocated memory is still 136.3 MB. Free memory was 109.0 MB in the beginning and 101.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.02 ms. Allocated memory is still 136.3 MB. Free memory was 101.5 MB in the beginning and 97.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.29 ms. Allocated memory is still 136.3 MB. Free memory was 97.3 MB in the beginning and 94.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1399.10 ms. Allocated memory is still 136.3 MB. Free memory was 94.2 MB in the beginning and 86.3 MB in the end (delta: 7.9 MB). Peak memory consumption was 50.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2274.49 ms. Allocated memory was 136.3 MB in the beginning and 172.0 MB in the end (delta: 35.7 MB). Free memory was 85.7 MB in the beginning and 113.9 MB in the end (delta: -28.2 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Witness Printer took 88.08 ms. Allocated memory is still 172.0 MB. Free memory was 113.9 MB in the beginning and 103.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L126] int pumpRunning = 0; [L127] int systemActive = 1; [L570] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L814] int waterLevel = 1; [L815] int methaneLevelCritical = 0; [L917] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L990] int retValue_acc ; [L991] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L805] int retValue_acc ; [L808] retValue_acc = 1 [L809] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L997] tmp = valid_product() [L999] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L49] int splverifierCounter ; [L50] int tmp ; [L51] int tmp___0 ; [L52] int tmp___1 ; [L53] int tmp___2 ; [L56] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] tmp = __VERIFIER_nondet_int() [L68] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] COND TRUE waterLevel < 2 [L833] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND FALSE !(\read(tmp___2)) [L94] tmp___1 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L345] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L352] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L134] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L141] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L368] int tmp ; [L369] int tmp___0 ; [L370] int tmp___1 ; [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L374] tmp = isMethaneLevelCritical() [L376] COND FALSE !(\read(tmp)) [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L380] tmp___0 = getWaterLevel() [L382] COND TRUE tmp___0 == 2 [L259] int retValue_acc ; [L262] retValue_acc = pumpRunning [L263] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L384] tmp___1 = isPumpRunning() [L386] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product60.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 146 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 581 SDtfs, 753 SDslu, 413 SDs, 0 SdLazy, 67 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 261 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 4791 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...