./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_65dc9f1b-9efb-4d4b-aadc-96d43ac6cb80/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_65dc9f1b-9efb-4d4b-aadc-96d43ac6cb80/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_65dc9f1b-9efb-4d4b-aadc-96d43ac6cb80/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_65dc9f1b-9efb-4d4b-aadc-96d43ac6cb80/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_65dc9f1b-9efb-4d4b-aadc-96d43ac6cb80/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_65dc9f1b-9efb-4d4b-aadc-96d43ac6cb80/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75ad40de7ac44b78584ba916fa204e981921222d .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-cad4683 [2019-10-22 11:24:33,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:24:33,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:24:33,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:24:33,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:24:33,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:24:33,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:24:33,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:24:33,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:24:33,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:24:33,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:24:33,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:24:33,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:24:33,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:24:33,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:24:33,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:24:33,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:24:33,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:24:33,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:24:33,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:24:33,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:24:33,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:24:33,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:24:33,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:24:33,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:24:33,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:24:33,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:24:33,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:24:33,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:24:33,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:24:33,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:24:33,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:24:33,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:24:33,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:24:33,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:24:33,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:24:33,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:24:33,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:24:33,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:24:33,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:24:33,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:24:33,600 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_65dc9f1b-9efb-4d4b-aadc-96d43ac6cb80/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:24:33,613 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:24:33,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:24:33,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:24:33,622 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:24:33,622 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:24:33,622 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:24:33,622 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:24:33,623 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:24:33,623 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:24:33,623 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:24:33,623 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:24:33,623 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:24:33,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:24:33,624 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:24:33,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:24:33,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:24:33,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:24:33,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:24:33,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:24:33,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:24:33,625 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:24:33,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:24:33,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:24:33,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:24:33,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:24:33,626 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:24:33,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:24:33,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:33,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:24:33,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:24:33,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:24:33,627 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:24:33,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:24:33,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:24:33,628 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:24:33,628 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_65dc9f1b-9efb-4d4b-aadc-96d43ac6cb80/bin/utaipan 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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> 75ad40de7ac44b78584ba916fa204e981921222d [2019-10-22 11:24:33,653 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:24:33,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:24:33,665 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:24:33,667 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:24:33,667 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:24:33,668 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_65dc9f1b-9efb-4d4b-aadc-96d43ac6cb80/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2019-10-22 11:24:33,712 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65dc9f1b-9efb-4d4b-aadc-96d43ac6cb80/bin/utaipan/data/8425a05ba/2e233f7492dd4999843ca982898e9b5f/FLAGfec3eeec1 [2019-10-22 11:24:34,143 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:24:34,144 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_65dc9f1b-9efb-4d4b-aadc-96d43ac6cb80/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2019-10-22 11:24:34,154 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65dc9f1b-9efb-4d4b-aadc-96d43ac6cb80/bin/utaipan/data/8425a05ba/2e233f7492dd4999843ca982898e9b5f/FLAGfec3eeec1 [2019-10-22 11:24:34,165 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_65dc9f1b-9efb-4d4b-aadc-96d43ac6cb80/bin/utaipan/data/8425a05ba/2e233f7492dd4999843ca982898e9b5f [2019-10-22 11:24:34,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:34,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:34,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:34,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:34,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:34,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:34" (1/1) ... [2019-10-22 11:24:34,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@121e4b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:34, skipping insertion in model container [2019-10-22 11:24:34,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:34" (1/1) ... [2019-10-22 11:24:34,182 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:34,214 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:34,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:34,573 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:34,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:34,697 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:34,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:34 WrapperNode [2019-10-22 11:24:34,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:34,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:34,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:34,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:34,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:34" (1/1) ... [2019-10-22 11:24:34,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:34" (1/1) ... [2019-10-22 11:24:34,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:34,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:34,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:34,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:34,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:34" (1/1) ... [2019-10-22 11:24:34,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:34" (1/1) ... [2019-10-22 11:24:34,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:34" (1/1) ... [2019-10-22 11:24:34,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:34" (1/1) ... [2019-10-22 11:24:34,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:34" (1/1) ... [2019-10-22 11:24:34,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:34" (1/1) ... [2019-10-22 11:24:34,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:34" (1/1) ... [2019-10-22 11:24:34,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:34,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:34,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:34,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:34,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65dc9f1b-9efb-4d4b-aadc-96d43ac6cb80/bin/utaipan/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 [2019-10-22 11:24:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:24:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:24:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:35,627 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:35,627 INFO L284 CfgBuilder]: Removed 106 assume(true) statements. [2019-10-22 11:24:35,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:35 BoogieIcfgContainer [2019-10-22 11:24:35,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:35,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:35,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:35,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:35,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:34" (1/3) ... [2019-10-22 11:24:35,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f645fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:35, skipping insertion in model container [2019-10-22 11:24:35,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:34" (2/3) ... [2019-10-22 11:24:35,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f645fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:35, skipping insertion in model container [2019-10-22 11:24:35,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:35" (3/3) ... [2019-10-22 11:24:35,637 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2019-10-22 11:24:35,648 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:35,657 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:24:35,668 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:24:35,691 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:35,692 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:24:35,692 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:35,692 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:35,692 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:35,692 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:35,692 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:35,692 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:35,706 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-10-22 11:24:35,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:24:35,712 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:35,713 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:35,715 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:35,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:35,720 INFO L82 PathProgramCache]: Analyzing trace with hash 625606487, now seen corresponding path program 1 times [2019-10-22 11:24:35,728 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:35,728 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952533226] [2019-10-22 11:24:35,728 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:35,729 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:35,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:35,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:35,901 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952533226] [2019-10-22 11:24:35,902 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:35,902 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:35,902 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828003042] [2019-10-22 11:24:35,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:24:35,907 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:35,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:24:35,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:24:35,920 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 2 states. [2019-10-22 11:24:35,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:35,941 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2019-10-22 11:24:35,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:24:35,942 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 11:24:35,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:35,952 INFO L225 Difference]: With dead ends: 166 [2019-10-22 11:24:35,952 INFO L226 Difference]: Without dead ends: 82 [2019-10-22 11:24:35,955 INFO L600 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 [2019-10-22 11:24:35,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-10-22 11:24:35,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-10-22 11:24:35,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-10-22 11:24:35,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2019-10-22 11:24:35,992 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 18 [2019-10-22 11:24:35,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:35,992 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2019-10-22 11:24:35,993 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:24:35,993 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2019-10-22 11:24:35,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:24:35,993 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:35,994 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:35,994 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:35,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:35,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1306218461, now seen corresponding path program 1 times [2019-10-22 11:24:35,995 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:35,995 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602166913] [2019-10-22 11:24:35,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:35,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:35,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:36,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:36,126 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602166913] [2019-10-22 11:24:36,127 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:36,127 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:24:36,127 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399727165] [2019-10-22 11:24:36,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:36,128 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:36,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:36,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:36,129 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand 3 states. [2019-10-22 11:24:36,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:36,138 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2019-10-22 11:24:36,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:36,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:24:36,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:36,139 INFO L225 Difference]: With dead ends: 82 [2019-10-22 11:24:36,139 INFO L226 Difference]: Without dead ends: 38 [2019-10-22 11:24:36,140 INFO L600 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 [2019-10-22 11:24:36,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-22 11:24:36,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-10-22 11:24:36,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-22 11:24:36,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2019-10-22 11:24:36,144 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2019-10-22 11:24:36,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:36,145 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2019-10-22 11:24:36,145 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:36,145 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2019-10-22 11:24:36,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:24:36,146 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:36,146 INFO L380 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] [2019-10-22 11:24:36,146 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:36,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:36,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810196, now seen corresponding path program 1 times [2019-10-22 11:24:36,146 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:36,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587392125] [2019-10-22 11:24:36,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:36,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:36,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:36,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:36,251 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587392125] [2019-10-22 11:24:36,251 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:36,251 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:24:36,252 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109675043] [2019-10-22 11:24:36,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:24:36,252 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:36,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:24:36,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:36,253 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 6 states. [2019-10-22 11:24:36,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:36,366 INFO L93 Difference]: Finished difference Result 127 states and 187 transitions. [2019-10-22 11:24:36,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:36,367 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-10-22 11:24:36,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:36,368 INFO L225 Difference]: With dead ends: 127 [2019-10-22 11:24:36,368 INFO L226 Difference]: Without dead ends: 95 [2019-10-22 11:24:36,369 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:24:36,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-10-22 11:24:36,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 59. [2019-10-22 11:24:36,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-10-22 11:24:36,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2019-10-22 11:24:36,380 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 24 [2019-10-22 11:24:36,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:36,380 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2019-10-22 11:24:36,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:24:36,381 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2019-10-22 11:24:36,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:24:36,381 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:36,382 INFO L380 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] [2019-10-22 11:24:36,382 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:36,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:36,382 INFO L82 PathProgramCache]: Analyzing trace with hash -718050600, now seen corresponding path program 1 times [2019-10-22 11:24:36,383 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:36,383 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284579112] [2019-10-22 11:24:36,383 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:36,383 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:36,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:36,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:36,430 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284579112] [2019-10-22 11:24:36,430 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:36,430 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:36,430 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399533189] [2019-10-22 11:24:36,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:36,431 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:36,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:36,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:36,432 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand 3 states. [2019-10-22 11:24:36,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:36,482 INFO L93 Difference]: Finished difference Result 135 states and 199 transitions. [2019-10-22 11:24:36,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:36,482 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-22 11:24:36,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:36,483 INFO L225 Difference]: With dead ends: 135 [2019-10-22 11:24:36,483 INFO L226 Difference]: Without dead ends: 82 [2019-10-22 11:24:36,484 INFO L600 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 [2019-10-22 11:24:36,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-10-22 11:24:36,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2019-10-22 11:24:36,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-10-22 11:24:36,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2019-10-22 11:24:36,502 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 25 [2019-10-22 11:24:36,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:36,502 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2019-10-22 11:24:36,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:36,502 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2019-10-22 11:24:36,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:24:36,503 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:36,503 INFO L380 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] [2019-10-22 11:24:36,503 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:36,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:36,504 INFO L82 PathProgramCache]: Analyzing trace with hash -979667415, now seen corresponding path program 1 times [2019-10-22 11:24:36,504 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:36,504 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127578902] [2019-10-22 11:24:36,504 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:36,504 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:36,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:36,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:36,594 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127578902] [2019-10-22 11:24:36,595 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:36,595 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:24:36,595 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524442784] [2019-10-22 11:24:36,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:36,596 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:36,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:36,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:36,596 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand 5 states. [2019-10-22 11:24:36,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:36,860 INFO L93 Difference]: Finished difference Result 427 states and 628 transitions. [2019-10-22 11:24:36,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:24:36,861 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 11:24:36,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:36,863 INFO L225 Difference]: With dead ends: 427 [2019-10-22 11:24:36,863 INFO L226 Difference]: Without dead ends: 353 [2019-10-22 11:24:36,864 INFO L600 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 [2019-10-22 11:24:36,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2019-10-22 11:24:36,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 144. [2019-10-22 11:24:36,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-22 11:24:36,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 201 transitions. [2019-10-22 11:24:36,906 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 201 transitions. Word has length 27 [2019-10-22 11:24:36,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:36,906 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 201 transitions. [2019-10-22 11:24:36,906 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:36,906 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 201 transitions. [2019-10-22 11:24:36,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:24:36,907 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:36,907 INFO L380 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] [2019-10-22 11:24:36,908 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:36,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:36,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1615036139, now seen corresponding path program 1 times [2019-10-22 11:24:36,908 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:36,909 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243446767] [2019-10-22 11:24:36,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:36,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:36,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:24:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:24:37,715 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:24:37,715 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:24:37,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:24:37 BoogieIcfgContainer [2019-10-22 11:24:37,825 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:24:37,825 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:24:37,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:24:37,826 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:24:37,826 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:35" (3/4) ... [2019-10-22 11:24:37,828 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:24:37,922 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_65dc9f1b-9efb-4d4b-aadc-96d43ac6cb80/bin/utaipan/witness.graphml [2019-10-22 11:24:37,923 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:24:37,925 INFO L168 Benchmark]: Toolchain (without parser) took 3756.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 940.5 MB in the beginning and 1.0 GB in the end (delta: -62.6 MB). Peak memory consumption was 73.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:37,925 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:37,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 529.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:37,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:37,926 INFO L168 Benchmark]: Boogie Preprocessor took 45.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:37,926 INFO L168 Benchmark]: RCFGBuilder took 817.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.8 MB). Peak memory consumption was 58.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:37,927 INFO L168 Benchmark]: TraceAbstraction took 2195.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:37,927 INFO L168 Benchmark]: Witness Printer took 97.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:37,929 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 529.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 817.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.8 MB). Peak memory consumption was 58.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2195.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * Witness Printer took 97.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L276] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L283] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L128] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L135] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L556] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 86 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 361 SDtfs, 484 SDslu, 517 SDs, 0 SdLazy, 72 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 247 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 5373 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...