./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.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_cc9693a8-84bc-428c-aed9-593d155b9767/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cc9693a8-84bc-428c-aed9-593d155b9767/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cc9693a8-84bc-428c-aed9-593d155b9767/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cc9693a8-84bc-428c-aed9-593d155b9767/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cc9693a8-84bc-428c-aed9-593d155b9767/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cc9693a8-84bc-428c-aed9-593d155b9767/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 40c03acb761953b49167bc0508d57daafd17b745 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 03:18:24,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:18:24,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:18:24,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:18:24,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:18:24,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:18:24,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:18:24,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:18:24,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:18:24,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:18:24,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:18:24,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:18:24,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:18:24,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:18:24,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:18:24,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:18:24,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:18:24,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:18:24,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:18:24,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:18:24,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:18:24,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:18:24,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:18:24,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:18:24,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:18:24,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:18:24,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:18:24,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:18:24,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:18:24,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:18:24,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:18:24,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:18:24,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:18:24,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:18:24,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:18:24,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:18:24,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:18:24,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:18:24,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:18:24,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:18:24,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:18:24,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cc9693a8-84bc-428c-aed9-593d155b9767/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:18:24,719 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:18:24,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:18:24,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:18:24,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:18:24,721 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:18:24,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:18:24,722 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:18:24,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:18:24,722 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:18:24,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:18:24,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:18:24,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:18:24,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:18:24,723 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:18:24,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:18:24,724 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:18:24,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:18:24,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:18:24,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:18:24,725 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:18:24,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:18:24,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:18:24,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:18:24,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:18:24,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:18:24,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:18:24,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:18:24,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:18:24,727 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:18:24,727 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_cc9693a8-84bc-428c-aed9-593d155b9767/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cc9693a8-84bc-428c-aed9-593d155b9767/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40c03acb761953b49167bc0508d57daafd17b745 [2020-11-28 03:18:24,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:18:24,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:18:24,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:18:24,996 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:18:24,998 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:18:24,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cc9693a8-84bc-428c-aed9-593d155b9767/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2020-11-28 03:18:25,078 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cc9693a8-84bc-428c-aed9-593d155b9767/bin/uautomizer/data/f729d79d4/df8d486b11094f6fbf933480122d45d1/FLAG947cff82e [2020-11-28 03:18:25,716 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:18:25,718 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cc9693a8-84bc-428c-aed9-593d155b9767/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2020-11-28 03:18:25,738 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cc9693a8-84bc-428c-aed9-593d155b9767/bin/uautomizer/data/f729d79d4/df8d486b11094f6fbf933480122d45d1/FLAG947cff82e [2020-11-28 03:18:25,993 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cc9693a8-84bc-428c-aed9-593d155b9767/bin/uautomizer/data/f729d79d4/df8d486b11094f6fbf933480122d45d1 [2020-11-28 03:18:25,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:18:25,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:18:26,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:26,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:18:26,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:18:26,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:25" (1/1) ... [2020-11-28 03:18:26,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23022493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:26, skipping insertion in model container [2020-11-28 03:18:26,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:25" (1/1) ... [2020-11-28 03:18:26,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:18:26,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:18:26,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:26,399 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:18:26,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:26,536 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:18:26,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:26 WrapperNode [2020-11-28 03:18:26,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:26,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:26,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:18:26,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:18:26,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:26" (1/1) ... [2020-11-28 03:18:26,577 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:26" (1/1) ... [2020-11-28 03:18:26,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:26,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:18:26,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:18:26,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:18:26,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:26" (1/1) ... [2020-11-28 03:18:26,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:26" (1/1) ... [2020-11-28 03:18:26,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:26" (1/1) ... [2020-11-28 03:18:26,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:26" (1/1) ... [2020-11-28 03:18:26,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:26" (1/1) ... [2020-11-28 03:18:26,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:26" (1/1) ... [2020-11-28 03:18:26,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:26" (1/1) ... [2020-11-28 03:18:26,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:18:26,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:18:26,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:18:26,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:18:26,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cc9693a8-84bc-428c-aed9-593d155b9767/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 03:18:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:18:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:18:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:18:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:18:27,667 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:18:27,667 INFO L298 CfgBuilder]: Removed 122 assume(true) statements. [2020-11-28 03:18:27,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:27 BoogieIcfgContainer [2020-11-28 03:18:27,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:18:27,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:18:27,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:18:27,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:18:27,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:18:25" (1/3) ... [2020-11-28 03:18:27,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619bd2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:27, skipping insertion in model container [2020-11-28 03:18:27,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:26" (2/3) ... [2020-11-28 03:18:27,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619bd2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:27, skipping insertion in model container [2020-11-28 03:18:27,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:27" (3/3) ... [2020-11-28 03:18:27,679 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2020-11-28 03:18:27,688 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:18:27,707 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:18:27,722 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:18:27,748 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:18:27,749 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:18:27,749 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:18:27,749 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:18:27,749 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:18:27,749 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:18:27,750 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:18:27,750 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:18:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-11-28 03:18:27,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:18:27,772 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:27,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:27,773 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:27,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:27,779 INFO L82 PathProgramCache]: Analyzing trace with hash 109983179, now seen corresponding path program 1 times [2020-11-28 03:18:27,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:27,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4708956] [2020-11-28 03:18:27,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:28,117 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 03:18:28,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4708956] [2020-11-28 03:18:28,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:28,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:18:28,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248111588] [2020-11-28 03:18:28,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:18:28,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:28,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:18:28,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:18:28,145 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-11-28 03:18:28,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:28,192 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2020-11-28 03:18:28,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:18:28,194 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-28 03:18:28,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:28,213 INFO L225 Difference]: With dead ends: 171 [2020-11-28 03:18:28,214 INFO L226 Difference]: Without dead ends: 83 [2020-11-28 03:18:28,222 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 03:18:28,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-11-28 03:18:28,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-11-28 03:18:28,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-11-28 03:18:28,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2020-11-28 03:18:28,284 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2020-11-28 03:18:28,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:28,285 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2020-11-28 03:18:28,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:18:28,286 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2020-11-28 03:18:28,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:18:28,287 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:28,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:28,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:18:28,288 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:28,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:28,291 INFO L82 PathProgramCache]: Analyzing trace with hash -936773718, now seen corresponding path program 1 times [2020-11-28 03:18:28,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:28,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363619715] [2020-11-28 03:18:28,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:28,446 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 03:18:28,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363619715] [2020-11-28 03:18:28,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:28,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:18:28,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230546415] [2020-11-28 03:18:28,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:28,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:28,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:28,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:28,450 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 3 states. [2020-11-28 03:18:28,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:28,460 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2020-11-28 03:18:28,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:28,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 03:18:28,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:28,462 INFO L225 Difference]: With dead ends: 83 [2020-11-28 03:18:28,462 INFO L226 Difference]: Without dead ends: 37 [2020-11-28 03:18:28,463 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 03:18:28,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-28 03:18:28,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-28 03:18:28,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-28 03:18:28,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2020-11-28 03:18:28,468 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2020-11-28 03:18:28,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:28,468 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2020-11-28 03:18:28,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:28,469 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2020-11-28 03:18:28,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:18:28,470 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:28,470 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] [2020-11-28 03:18:28,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:18:28,471 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:28,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:28,471 INFO L82 PathProgramCache]: Analyzing trace with hash 533078269, now seen corresponding path program 1 times [2020-11-28 03:18:28,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:28,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992899175] [2020-11-28 03:18:28,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:28,585 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 03:18:28,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992899175] [2020-11-28 03:18:28,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:28,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:18:28,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226000126] [2020-11-28 03:18:28,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:28,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:28,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:28,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:28,588 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 3 states. [2020-11-28 03:18:28,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:28,622 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2020-11-28 03:18:28,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:28,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-28 03:18:28,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:28,625 INFO L225 Difference]: With dead ends: 68 [2020-11-28 03:18:28,625 INFO L226 Difference]: Without dead ends: 37 [2020-11-28 03:18:28,626 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 03:18:28,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-28 03:18:28,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-28 03:18:28,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-28 03:18:28,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2020-11-28 03:18:28,631 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2020-11-28 03:18:28,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:28,631 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2020-11-28 03:18:28,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:28,632 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2020-11-28 03:18:28,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 03:18:28,633 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:28,633 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] [2020-11-28 03:18:28,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:18:28,633 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:28,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:28,634 INFO L82 PathProgramCache]: Analyzing trace with hash 545820985, now seen corresponding path program 1 times [2020-11-28 03:18:28,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:28,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086366015] [2020-11-28 03:18:28,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:28,704 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 03:18:28,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086366015] [2020-11-28 03:18:28,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:28,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:18:28,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529758377] [2020-11-28 03:18:28,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:28,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:28,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:28,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:28,706 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2020-11-28 03:18:28,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:28,772 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2020-11-28 03:18:28,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:28,772 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-28 03:18:28,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:28,773 INFO L225 Difference]: With dead ends: 89 [2020-11-28 03:18:28,773 INFO L226 Difference]: Without dead ends: 58 [2020-11-28 03:18:28,774 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 03:18:28,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-11-28 03:18:28,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-11-28 03:18:28,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-28 03:18:28,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2020-11-28 03:18:28,782 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2020-11-28 03:18:28,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:28,782 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2020-11-28 03:18:28,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:28,782 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2020-11-28 03:18:28,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-28 03:18:28,783 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:28,783 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, 1] [2020-11-28 03:18:28,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:18:28,784 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:28,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:28,784 INFO L82 PathProgramCache]: Analyzing trace with hash 2110814541, now seen corresponding path program 1 times [2020-11-28 03:18:28,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:28,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189062535] [2020-11-28 03:18:28,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:28,850 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 03:18:28,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189062535] [2020-11-28 03:18:28,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:28,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:18:28,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200188548] [2020-11-28 03:18:28,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:18:28,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:28,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:18:28,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:18:28,853 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 5 states. [2020-11-28 03:18:28,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:28,963 INFO L93 Difference]: Finished difference Result 266 states and 385 transitions. [2020-11-28 03:18:28,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:18:28,963 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-11-28 03:18:28,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:28,966 INFO L225 Difference]: With dead ends: 266 [2020-11-28 03:18:28,966 INFO L226 Difference]: Without dead ends: 216 [2020-11-28 03:18:28,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:18:28,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-11-28 03:18:28,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 100. [2020-11-28 03:18:28,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-28 03:18:28,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 139 transitions. [2020-11-28 03:18:28,986 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 139 transitions. Word has length 29 [2020-11-28 03:18:28,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:28,987 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 139 transitions. [2020-11-28 03:18:28,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:18:28,987 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 139 transitions. [2020-11-28 03:18:28,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 03:18:28,989 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:28,989 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, 1, 1] [2020-11-28 03:18:28,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:18:28,989 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:28,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:28,990 INFO L82 PathProgramCache]: Analyzing trace with hash 331369175, now seen corresponding path program 1 times [2020-11-28 03:18:28,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:28,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348762089] [2020-11-28 03:18:28,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:29,105 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 03:18:29,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348762089] [2020-11-28 03:18:29,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:29,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:18:29,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657108396] [2020-11-28 03:18:29,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:18:29,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:29,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:18:29,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:18:29,107 INFO L87 Difference]: Start difference. First operand 100 states and 139 transitions. Second operand 5 states. [2020-11-28 03:18:29,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:29,307 INFO L93 Difference]: Finished difference Result 280 states and 394 transitions. [2020-11-28 03:18:29,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:18:29,307 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-28 03:18:29,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:29,310 INFO L225 Difference]: With dead ends: 280 [2020-11-28 03:18:29,310 INFO L226 Difference]: Without dead ends: 278 [2020-11-28 03:18:29,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:18:29,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-11-28 03:18:29,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 100. [2020-11-28 03:18:29,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-28 03:18:29,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 138 transitions. [2020-11-28 03:18:29,326 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 138 transitions. Word has length 30 [2020-11-28 03:18:29,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:29,327 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 138 transitions. [2020-11-28 03:18:29,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:18:29,327 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 138 transitions. [2020-11-28 03:18:29,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 03:18:29,328 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:29,328 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, 1, 1, 1, 1, 1] [2020-11-28 03:18:29,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:18:29,329 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:29,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:29,329 INFO L82 PathProgramCache]: Analyzing trace with hash 261712181, now seen corresponding path program 1 times [2020-11-28 03:18:29,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:29,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046767796] [2020-11-28 03:18:29,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:29,389 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 03:18:29,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046767796] [2020-11-28 03:18:29,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:29,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:18:29,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408720634] [2020-11-28 03:18:29,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:18:29,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:29,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:18:29,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:18:29,391 INFO L87 Difference]: Start difference. First operand 100 states and 138 transitions. Second operand 5 states. [2020-11-28 03:18:29,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:29,442 INFO L93 Difference]: Finished difference Result 270 states and 372 transitions. [2020-11-28 03:18:29,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:18:29,443 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-11-28 03:18:29,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:29,444 INFO L225 Difference]: With dead ends: 270 [2020-11-28 03:18:29,444 INFO L226 Difference]: Without dead ends: 176 [2020-11-28 03:18:29,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:18:29,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-11-28 03:18:29,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 106. [2020-11-28 03:18:29,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-28 03:18:29,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 144 transitions. [2020-11-28 03:18:29,462 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 144 transitions. Word has length 33 [2020-11-28 03:18:29,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:29,463 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 144 transitions. [2020-11-28 03:18:29,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:18:29,463 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 144 transitions. [2020-11-28 03:18:29,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 03:18:29,467 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:29,468 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, 1, 1, 1, 1, 1] [2020-11-28 03:18:29,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:18:29,468 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:29,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:29,469 INFO L82 PathProgramCache]: Analyzing trace with hash -325093833, now seen corresponding path program 1 times [2020-11-28 03:18:29,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:29,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937337523] [2020-11-28 03:18:29,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:29,538 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 03:18:29,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937337523] [2020-11-28 03:18:29,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:29,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:18:29,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988471670] [2020-11-28 03:18:29,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:18:29,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:29,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:18:29,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:18:29,540 INFO L87 Difference]: Start difference. First operand 106 states and 144 transitions. Second operand 4 states. [2020-11-28 03:18:29,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:29,577 INFO L93 Difference]: Finished difference Result 252 states and 342 transitions. [2020-11-28 03:18:29,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:18:29,578 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-11-28 03:18:29,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:29,579 INFO L225 Difference]: With dead ends: 252 [2020-11-28 03:18:29,579 INFO L226 Difference]: Without dead ends: 152 [2020-11-28 03:18:29,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:18:29,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-11-28 03:18:29,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 110. [2020-11-28 03:18:29,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-11-28 03:18:29,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 148 transitions. [2020-11-28 03:18:29,595 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 148 transitions. Word has length 33 [2020-11-28 03:18:29,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:29,596 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 148 transitions. [2020-11-28 03:18:29,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:18:29,596 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 148 transitions. [2020-11-28 03:18:29,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 03:18:29,597 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:29,597 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, 1, 1, 1, 1, 1] [2020-11-28 03:18:29,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:18:29,604 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:29,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:29,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1604957511, now seen corresponding path program 1 times [2020-11-28 03:18:29,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:29,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037762355] [2020-11-28 03:18:29,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:29,666 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 03:18:29,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037762355] [2020-11-28 03:18:29,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:29,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:18:29,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407525534] [2020-11-28 03:18:29,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:29,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:29,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:29,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:29,668 INFO L87 Difference]: Start difference. First operand 110 states and 148 transitions. Second operand 3 states. [2020-11-28 03:18:29,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:29,716 INFO L93 Difference]: Finished difference Result 262 states and 352 transitions. [2020-11-28 03:18:29,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:29,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-11-28 03:18:29,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:29,718 INFO L225 Difference]: With dead ends: 262 [2020-11-28 03:18:29,718 INFO L226 Difference]: Without dead ends: 158 [2020-11-28 03:18:29,719 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 03:18:29,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-11-28 03:18:29,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-11-28 03:18:29,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-11-28 03:18:29,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 206 transitions. [2020-11-28 03:18:29,747 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 206 transitions. Word has length 33 [2020-11-28 03:18:29,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:29,748 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 206 transitions. [2020-11-28 03:18:29,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:29,748 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 206 transitions. [2020-11-28 03:18:29,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 03:18:29,752 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:29,753 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, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:29,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:18:29,753 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:29,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:29,754 INFO L82 PathProgramCache]: Analyzing trace with hash -447661573, now seen corresponding path program 1 times [2020-11-28 03:18:29,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:29,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325046381] [2020-11-28 03:18:29,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:29,862 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 03:18:29,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325046381] [2020-11-28 03:18:29,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:29,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:18:29,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681461700] [2020-11-28 03:18:29,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:18:29,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:29,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:18:29,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:18:29,864 INFO L87 Difference]: Start difference. First operand 158 states and 206 transitions. Second operand 8 states. [2020-11-28 03:18:30,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:30,576 INFO L93 Difference]: Finished difference Result 776 states and 1011 transitions. [2020-11-28 03:18:30,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-28 03:18:30,577 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-11-28 03:18:30,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:30,581 INFO L225 Difference]: With dead ends: 776 [2020-11-28 03:18:30,581 INFO L226 Difference]: Without dead ends: 624 [2020-11-28 03:18:30,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2020-11-28 03:18:30,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-11-28 03:18:30,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 158. [2020-11-28 03:18:30,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-11-28 03:18:30,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 202 transitions. [2020-11-28 03:18:30,604 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 202 transitions. Word has length 34 [2020-11-28 03:18:30,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:30,604 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 202 transitions. [2020-11-28 03:18:30,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:18:30,605 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 202 transitions. [2020-11-28 03:18:30,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-28 03:18:30,606 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:30,606 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:30,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:18:30,606 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:30,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:30,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1418096472, now seen corresponding path program 1 times [2020-11-28 03:18:30,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:30,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587678903] [2020-11-28 03:18:30,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:18:30,685 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:18:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:18:30,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:18:30,823 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:18:30,823 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:18:30,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:18:30,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:18:30 BoogieIcfgContainer [2020-11-28 03:18:30,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:18:30,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:18:30,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:18:30,974 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:18:30,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:27" (3/4) ... [2020-11-28 03:18:30,977 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:18:31,115 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cc9693a8-84bc-428c-aed9-593d155b9767/bin/uautomizer/witness.graphml [2020-11-28 03:18:31,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:18:31,117 INFO L168 Benchmark]: Toolchain (without parser) took 5117.54 ms. Allocated memory was 94.4 MB in the beginning and 157.3 MB in the end (delta: 62.9 MB). Free memory was 66.3 MB in the beginning and 61.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 68.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:31,118 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:31,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.63 ms. Allocated memory is still 94.4 MB. Free memory was 66.1 MB in the beginning and 62.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:31,118 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.75 ms. Allocated memory is still 94.4 MB. Free memory was 62.0 MB in the beginning and 59.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:31,119 INFO L168 Benchmark]: Boogie Preprocessor took 44.38 ms. Allocated memory is still 94.4 MB. Free memory was 59.2 MB in the beginning and 56.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:31,119 INFO L168 Benchmark]: RCFGBuilder took 1007.11 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 56.7 MB in the beginning and 61.3 MB in the end (delta: -4.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:31,120 INFO L168 Benchmark]: TraceAbstraction took 3303.11 ms. Allocated memory was 123.7 MB in the beginning and 157.3 MB in the end (delta: 33.6 MB). Free memory was 60.7 MB in the beginning and 81.1 MB in the end (delta: -20.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:31,120 INFO L168 Benchmark]: Witness Printer took 141.74 ms. Allocated memory is still 157.3 MB. Free memory was 81.1 MB in the beginning and 61.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:31,122 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 533.63 ms. Allocated memory is still 94.4 MB. Free memory was 66.1 MB in the beginning and 62.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.75 ms. Allocated memory is still 94.4 MB. Free memory was 62.0 MB in the beginning and 59.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.38 ms. Allocated memory is still 94.4 MB. Free memory was 59.2 MB in the beginning and 56.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1007.11 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 56.7 MB in the beginning and 61.3 MB in the end (delta: -4.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3303.11 ms. Allocated memory was 123.7 MB in the beginning and 157.3 MB in the end (delta: 33.6 MB). Free memory was 60.7 MB in the beginning and 81.1 MB in the end (delta: -20.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. * Witness Printer took 141.74 ms. Allocated memory is still 157.3 MB. Free memory was 81.1 MB in the beginning and 61.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L583] int pumpRunning = 0; [L584] int systemActive = 1; [L835] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L908] int retValue_acc ; [L909] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L826] int retValue_acc ; [L829] retValue_acc = 1 [L830] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L915] tmp = valid_product() [L917] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L513] int splverifierCounter ; [L514] int tmp ; [L515] int tmp___0 ; [L516] int tmp___1 ; [L517] int tmp___2 ; [L520] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] tmp = __VERIFIER_nondet_int() [L532] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE waterLevel < 2 [L434] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L540] tmp___0 = __VERIFIER_nondet_int() [L542] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L550] tmp___2 = __VERIFIER_nondet_int() [L552] COND TRUE \read(tmp___2) [L757] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L591] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L598] COND TRUE \read(systemActive) [L620] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] COND TRUE ! pumpRunning [L735] int retValue_acc ; [L736] int tmp ; [L737] int tmp___0 ; [L495] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L498] COND FALSE !(waterLevel < 2) [L502] retValue_acc = 0 [L503] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L741] tmp = isHighWaterSensorDry() [L743] COND FALSE !(\read(tmp)) [L746] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L748] retValue_acc = tmp___0 [L749] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L625] tmp = isHighWaterLevel() [L627] COND TRUE \read(tmp) [L654] int tmp ; [L679] int retValue_acc ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L683] retValue_acc = isMethaneLevelCritical() [L685] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L658] tmp = isMethaneAlarm() [L660] COND FALSE !(\read(tmp)) [L648] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L772] int tmp ; [L773] int tmp___0 ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L777] tmp = isMethaneLevelCritical() [L779] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L522] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L524] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L530] tmp = __VERIFIER_nondet_int() [L532] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L540] tmp___0 = __VERIFIER_nondet_int() [L542] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L445] COND FALSE !(\read(methaneLevelCritical)) [L448] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L550] tmp___2 = __VERIFIER_nondet_int() [L552] COND TRUE \read(tmp___2) [L757] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L591] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L421] COND TRUE waterLevel > 0 [L422] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L598] COND TRUE \read(systemActive) [L620] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L623] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L772] int tmp ; [L773] int tmp___0 ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L777] tmp = isMethaneLevelCritical() [L779] COND TRUE \read(tmp) [L690] int retValue_acc ; [L693] retValue_acc = pumpRunning [L694] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L781] tmp___0 = isPumpRunning() [L783] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec1_product42.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 90 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.0s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 793 SDtfs, 1010 SDslu, 1621 SDs, 0 SdLazy, 236 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=9, 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, 10 MinimizatonAttempts, 874 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 13794 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...