./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product44.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_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cd9d3373e3670d73493569b1c43b551709fc0f6c ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:54:11,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:11,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:11,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:11,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:11,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:11,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:11,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:11,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:11,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:11,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:11,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:11,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:11,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:11,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:11,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:11,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:11,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:11,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:11,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:11,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:11,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:11,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:11,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:11,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:11,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:11,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:11,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:11,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:11,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:11,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:11,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:11,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:11,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:11,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:11,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:11,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:11,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:11,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:11,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:11,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:11,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:54:11,720 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:11,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:11,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:11,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:11,721 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:11,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:11,721 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:11,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:11,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:11,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:11,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:11,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:11,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:11,732 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:11,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:11,732 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:11,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:11,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:11,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:11,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:11,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:11,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:11,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:11,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:11,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:11,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:11,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:54:11,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:11,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/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(__VERIFIER_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 -> cd9d3373e3670d73493569b1c43b551709fc0f6c [2019-10-22 08:54:11,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:11,774 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:11,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:11,777 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:11,778 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:11,778 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2019-10-22 08:54:11,830 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/bin/uautomizer/data/e1ed6aa58/3b573e46408a4a6a9f13465fa3c55d5f/FLAG6f4fe7a86 [2019-10-22 08:54:12,251 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:12,252 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2019-10-22 08:54:12,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/bin/uautomizer/data/e1ed6aa58/3b573e46408a4a6a9f13465fa3c55d5f/FLAG6f4fe7a86 [2019-10-22 08:54:12,273 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/bin/uautomizer/data/e1ed6aa58/3b573e46408a4a6a9f13465fa3c55d5f [2019-10-22 08:54:12,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:12,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:12,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:12,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:12,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:12,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a3561c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12, skipping insertion in model container [2019-10-22 08:54:12,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,290 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:12,322 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:12,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:12,611 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:12,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:12,693 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:12,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12 WrapperNode [2019-10-22 08:54:12,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:12,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:12,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:12,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:12,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:12,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:12,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:12,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:12,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:12,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:12,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:12,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:12,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/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 [2019-10-22 08:54:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:54:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:54:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:12,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:13,467 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:13,467 INFO L284 CfgBuilder]: Removed 120 assume(true) statements. [2019-10-22 08:54:13,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:13 BoogieIcfgContainer [2019-10-22 08:54:13,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:13,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:13,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:13,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:13,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:12" (1/3) ... [2019-10-22 08:54:13,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8a5ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:13, skipping insertion in model container [2019-10-22 08:54:13,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (2/3) ... [2019-10-22 08:54:13,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8a5ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:13, skipping insertion in model container [2019-10-22 08:54:13,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:13" (3/3) ... [2019-10-22 08:54:13,476 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product44.cil.c [2019-10-22 08:54:13,483 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:13,493 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 08:54:13,502 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 08:54:13,530 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:13,531 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:13,531 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:13,532 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:13,532 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:13,532 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:13,532 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:13,532 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:13,553 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2019-10-22 08:54:13,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 08:54:13,562 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:13,563 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:13,565 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:13,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:13,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1782116946, now seen corresponding path program 1 times [2019-10-22 08:54:13,579 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:13,580 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408511396] [2019-10-22 08:54:13,580 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,580 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:13,809 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 08:54:13,810 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408511396] [2019-10-22 08:54:13,810 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:13,811 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:54:13,811 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985460235] [2019-10-22 08:54:13,815 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:54:13,815 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:13,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:54:13,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:54:13,826 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2019-10-22 08:54:13,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:13,850 INFO L93 Difference]: Finished difference Result 172 states and 257 transitions. [2019-10-22 08:54:13,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:54:13,851 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 08:54:13,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:13,860 INFO L225 Difference]: With dead ends: 172 [2019-10-22 08:54:13,861 INFO L226 Difference]: Without dead ends: 85 [2019-10-22 08:54:13,863 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 08:54:13,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-10-22 08:54:13,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-10-22 08:54:13,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-10-22 08:54:13,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2019-10-22 08:54:13,899 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2019-10-22 08:54:13,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:13,899 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2019-10-22 08:54:13,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:54:13,900 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2019-10-22 08:54:13,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 08:54:13,900 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:13,901 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:13,901 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:13,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:13,901 INFO L82 PathProgramCache]: Analyzing trace with hash 735360049, now seen corresponding path program 1 times [2019-10-22 08:54:13,901 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:13,902 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51722053] [2019-10-22 08:54:13,902 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,902 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:13,972 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 08:54:13,972 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51722053] [2019-10-22 08:54:13,972 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:13,973 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:13,973 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434919074] [2019-10-22 08:54:13,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:13,974 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:13,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:13,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:13,975 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2019-10-22 08:54:13,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:13,984 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2019-10-22 08:54:13,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:13,984 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-10-22 08:54:13,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:13,985 INFO L225 Difference]: With dead ends: 85 [2019-10-22 08:54:13,985 INFO L226 Difference]: Without dead ends: 39 [2019-10-22 08:54:13,986 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 08:54:13,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-22 08:54:13,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-10-22 08:54:13,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-22 08:54:13,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2019-10-22 08:54:13,990 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2019-10-22 08:54:13,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:13,991 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2019-10-22 08:54:13,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:13,991 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2019-10-22 08:54:13,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 08:54:13,991 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:13,992 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] [2019-10-22 08:54:13,992 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:13,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:13,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1297648259, now seen corresponding path program 1 times [2019-10-22 08:54:13,992 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:13,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873580122] [2019-10-22 08:54:13,993 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,993 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:14,073 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 08:54:14,073 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873580122] [2019-10-22 08:54:14,073 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:14,073 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:14,074 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882918671] [2019-10-22 08:54:14,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:14,074 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:14,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:14,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:14,075 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 3 states. [2019-10-22 08:54:14,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:14,118 INFO L93 Difference]: Finished difference Result 105 states and 153 transitions. [2019-10-22 08:54:14,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:14,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-10-22 08:54:14,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:14,120 INFO L225 Difference]: With dead ends: 105 [2019-10-22 08:54:14,120 INFO L226 Difference]: Without dead ends: 72 [2019-10-22 08:54:14,120 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 08:54:14,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-22 08:54:14,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2019-10-22 08:54:14,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-10-22 08:54:14,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2019-10-22 08:54:14,135 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 22 [2019-10-22 08:54:14,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:14,136 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2019-10-22 08:54:14,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:14,136 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2019-10-22 08:54:14,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 08:54:14,137 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:14,137 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] [2019-10-22 08:54:14,137 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:14,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:14,137 INFO L82 PathProgramCache]: Analyzing trace with hash -372126526, now seen corresponding path program 1 times [2019-10-22 08:54:14,137 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:14,138 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275057141] [2019-10-22 08:54:14,138 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,138 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:14,217 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 08:54:14,217 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275057141] [2019-10-22 08:54:14,217 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:14,218 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:54:14,218 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099376448] [2019-10-22 08:54:14,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:14,218 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:14,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:14,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:14,218 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 3 states. [2019-10-22 08:54:14,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:14,281 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2019-10-22 08:54:14,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:14,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-10-22 08:54:14,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:14,283 INFO L225 Difference]: With dead ends: 171 [2019-10-22 08:54:14,283 INFO L226 Difference]: Without dead ends: 109 [2019-10-22 08:54:14,283 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 08:54:14,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-10-22 08:54:14,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2019-10-22 08:54:14,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-10-22 08:54:14,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 155 transitions. [2019-10-22 08:54:14,303 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 155 transitions. Word has length 23 [2019-10-22 08:54:14,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:14,303 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 155 transitions. [2019-10-22 08:54:14,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:14,303 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 155 transitions. [2019-10-22 08:54:14,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 08:54:14,304 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:14,304 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 08:54:14,304 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:14,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:14,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1852423790, now seen corresponding path program 1 times [2019-10-22 08:54:14,305 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:14,305 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121603524] [2019-10-22 08:54:14,305 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,305 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:14,383 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 08:54:14,384 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121603524] [2019-10-22 08:54:14,384 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:14,384 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:54:14,384 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930513580] [2019-10-22 08:54:14,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:54:14,385 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:14,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:54:14,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:14,385 INFO L87 Difference]: Start difference. First operand 107 states and 155 transitions. Second operand 5 states. [2019-10-22 08:54:14,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:14,504 INFO L93 Difference]: Finished difference Result 399 states and 585 transitions. [2019-10-22 08:54:14,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:54:14,506 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-22 08:54:14,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:14,507 INFO L225 Difference]: With dead ends: 399 [2019-10-22 08:54:14,508 INFO L226 Difference]: Without dead ends: 298 [2019-10-22 08:54:14,508 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 08:54:14,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2019-10-22 08:54:14,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 194. [2019-10-22 08:54:14,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2019-10-22 08:54:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 272 transitions. [2019-10-22 08:54:14,540 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 272 transitions. Word has length 25 [2019-10-22 08:54:14,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:14,540 INFO L462 AbstractCegarLoop]: Abstraction has 194 states and 272 transitions. [2019-10-22 08:54:14,540 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:54:14,540 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 272 transitions. [2019-10-22 08:54:14,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:54:14,541 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:14,541 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] [2019-10-22 08:54:14,541 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:14,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:14,543 INFO L82 PathProgramCache]: Analyzing trace with hash 483234516, now seen corresponding path program 1 times [2019-10-22 08:54:14,543 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:14,544 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184137537] [2019-10-22 08:54:14,544 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,544 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:14,615 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 08:54:14,615 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184137537] [2019-10-22 08:54:14,615 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:14,615 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:54:14,616 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523731629] [2019-10-22 08:54:14,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:54:14,616 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:14,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:54:14,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:14,617 INFO L87 Difference]: Start difference. First operand 194 states and 272 transitions. Second operand 5 states. [2019-10-22 08:54:14,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:14,726 INFO L93 Difference]: Finished difference Result 398 states and 570 transitions. [2019-10-22 08:54:14,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:54:14,726 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-22 08:54:14,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:14,728 INFO L225 Difference]: With dead ends: 398 [2019-10-22 08:54:14,728 INFO L226 Difference]: Without dead ends: 396 [2019-10-22 08:54:14,729 INFO L600 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 [2019-10-22 08:54:14,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2019-10-22 08:54:14,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 194. [2019-10-22 08:54:14,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2019-10-22 08:54:14,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 270 transitions. [2019-10-22 08:54:14,753 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 270 transitions. Word has length 26 [2019-10-22 08:54:14,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:14,753 INFO L462 AbstractCegarLoop]: Abstraction has 194 states and 270 transitions. [2019-10-22 08:54:14,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:54:14,753 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 270 transitions. [2019-10-22 08:54:14,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 08:54:14,756 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:14,756 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, 1, 1, 1, 1, 1] [2019-10-22 08:54:14,757 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:14,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:14,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1957615203, now seen corresponding path program 1 times [2019-10-22 08:54:14,757 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:14,757 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773167783] [2019-10-22 08:54:14,757 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,758 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:14,810 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 08:54:14,811 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773167783] [2019-10-22 08:54:14,811 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:14,811 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:54:14,811 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439184109] [2019-10-22 08:54:14,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:54:14,812 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:14,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:54:14,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:14,812 INFO L87 Difference]: Start difference. First operand 194 states and 270 transitions. Second operand 5 states. [2019-10-22 08:54:14,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:14,878 INFO L93 Difference]: Finished difference Result 542 states and 750 transitions. [2019-10-22 08:54:14,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:54:14,879 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-10-22 08:54:14,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:14,880 INFO L225 Difference]: With dead ends: 542 [2019-10-22 08:54:14,880 INFO L226 Difference]: Without dead ends: 354 [2019-10-22 08:54:14,881 INFO L600 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 [2019-10-22 08:54:14,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2019-10-22 08:54:14,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 206. [2019-10-22 08:54:14,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2019-10-22 08:54:14,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 282 transitions. [2019-10-22 08:54:14,897 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 282 transitions. Word has length 33 [2019-10-22 08:54:14,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:14,897 INFO L462 AbstractCegarLoop]: Abstraction has 206 states and 282 transitions. [2019-10-22 08:54:14,898 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:54:14,898 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 282 transitions. [2019-10-22 08:54:14,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 08:54:14,899 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:14,899 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, 1, 1, 1, 1, 1] [2019-10-22 08:54:14,899 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:14,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:14,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1750546079, now seen corresponding path program 1 times [2019-10-22 08:54:14,900 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:14,900 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868732000] [2019-10-22 08:54:14,900 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,900 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:14,943 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 08:54:14,943 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868732000] [2019-10-22 08:54:14,943 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:14,944 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:54:14,944 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471413973] [2019-10-22 08:54:14,944 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:54:14,944 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:14,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:54:14,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:14,945 INFO L87 Difference]: Start difference. First operand 206 states and 282 transitions. Second operand 4 states. [2019-10-22 08:54:14,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:14,972 INFO L93 Difference]: Finished difference Result 444 states and 607 transitions. [2019-10-22 08:54:14,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:54:14,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-10-22 08:54:14,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:14,974 INFO L225 Difference]: With dead ends: 444 [2019-10-22 08:54:14,974 INFO L226 Difference]: Without dead ends: 244 [2019-10-22 08:54:14,975 INFO L600 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 [2019-10-22 08:54:14,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2019-10-22 08:54:14,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 165. [2019-10-22 08:54:14,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2019-10-22 08:54:14,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 222 transitions. [2019-10-22 08:54:14,985 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 222 transitions. Word has length 33 [2019-10-22 08:54:14,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:14,985 INFO L462 AbstractCegarLoop]: Abstraction has 165 states and 222 transitions. [2019-10-22 08:54:14,985 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:54:14,985 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 222 transitions. [2019-10-22 08:54:14,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 08:54:14,986 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:14,986 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, 1, 1, 1, 1, 1] [2019-10-22 08:54:14,986 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:14,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:14,986 INFO L82 PathProgramCache]: Analyzing trace with hash 470682401, now seen corresponding path program 1 times [2019-10-22 08:54:14,987 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:14,987 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653447294] [2019-10-22 08:54:14,987 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,987 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:15,033 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 08:54:15,033 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653447294] [2019-10-22 08:54:15,033 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:15,034 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:54:15,034 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104001846] [2019-10-22 08:54:15,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:54:15,034 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:15,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:54:15,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:15,035 INFO L87 Difference]: Start difference. First operand 165 states and 222 transitions. Second operand 5 states. [2019-10-22 08:54:15,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:15,171 INFO L93 Difference]: Finished difference Result 613 states and 858 transitions. [2019-10-22 08:54:15,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:54:15,172 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-10-22 08:54:15,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:15,174 INFO L225 Difference]: With dead ends: 613 [2019-10-22 08:54:15,174 INFO L226 Difference]: Without dead ends: 502 [2019-10-22 08:54:15,174 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:54:15,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2019-10-22 08:54:15,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 242. [2019-10-22 08:54:15,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2019-10-22 08:54:15,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 323 transitions. [2019-10-22 08:54:15,203 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 323 transitions. Word has length 33 [2019-10-22 08:54:15,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:15,203 INFO L462 AbstractCegarLoop]: Abstraction has 242 states and 323 transitions. [2019-10-22 08:54:15,203 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:54:15,203 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 323 transitions. [2019-10-22 08:54:15,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-22 08:54:15,204 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:15,204 INFO L380 BasicCegarLoop]: trace histogram [2, 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] [2019-10-22 08:54:15,205 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:15,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:15,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1853071629, now seen corresponding path program 1 times [2019-10-22 08:54:15,205 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:15,205 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512269414] [2019-10-22 08:54:15,213 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:15,213 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:15,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:15,292 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:15,292 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512269414] [2019-10-22 08:54:15,292 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338389168] [2019-10-22 08:54:15,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:54:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:15,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 08:54:15,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:15,469 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:15,471 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:54:15,471 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2019-10-22 08:54:15,471 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820632084] [2019-10-22 08:54:15,472 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:54:15,473 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:15,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:54:15,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:54:15,474 INFO L87 Difference]: Start difference. First operand 242 states and 323 transitions. Second operand 8 states. [2019-10-22 08:54:15,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:15,682 INFO L93 Difference]: Finished difference Result 879 states and 1211 transitions. [2019-10-22 08:54:15,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-22 08:54:15,682 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2019-10-22 08:54:15,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:15,685 INFO L225 Difference]: With dead ends: 879 [2019-10-22 08:54:15,685 INFO L226 Difference]: Without dead ends: 691 [2019-10-22 08:54:15,685 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2019-10-22 08:54:15,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2019-10-22 08:54:15,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 327. [2019-10-22 08:54:15,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2019-10-22 08:54:15,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 441 transitions. [2019-10-22 08:54:15,720 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 441 transitions. Word has length 48 [2019-10-22 08:54:15,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:15,720 INFO L462 AbstractCegarLoop]: Abstraction has 327 states and 441 transitions. [2019-10-22 08:54:15,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:54:15,720 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 441 transitions. [2019-10-22 08:54:15,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-22 08:54:15,721 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:15,721 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-22 08:54:15,922 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:54:15,923 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:15,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:15,923 INFO L82 PathProgramCache]: Analyzing trace with hash 82160865, now seen corresponding path program 2 times [2019-10-22 08:54:15,924 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:15,924 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110989907] [2019-10-22 08:54:15,924 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:15,924 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:15,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:16,623 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:16,623 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:54:16,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:16 BoogieIcfgContainer [2019-10-22 08:54:16,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:16,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:16,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:16,755 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:16,755 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:13" (3/4) ... [2019-10-22 08:54:16,757 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:54:16,884 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6af9c033-b1d4-46ee-893c-eaf2a2de1ef5/bin/uautomizer/witness.graphml [2019-10-22 08:54:16,884 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:16,885 INFO L168 Benchmark]: Toolchain (without parser) took 4608.73 ms. Allocated memory was 1.3 GB in the beginning and 1.7 GB in the end (delta: 378.5 MB). Free memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: -293.4 MB). Peak memory consumption was 85.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:16,886 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:16,886 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.32 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -31.5 MB). Peak memory consumption was 36.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:16,887 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.51 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:16,887 INFO L168 Benchmark]: Boogie Preprocessor took 34.65 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:16,887 INFO L168 Benchmark]: RCFGBuilder took 690.22 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:16,887 INFO L168 Benchmark]: TraceAbstraction took 3285.50 ms. Allocated memory was 1.3 GB in the beginning and 1.7 GB in the end (delta: 378.5 MB). Free memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: -365.7 MB). Peak memory consumption was 435.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:16,887 INFO L168 Benchmark]: Witness Printer took 129.13 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:16,889 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 416.32 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -31.5 MB). Peak memory consumption was 36.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.51 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.65 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 690.22 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3285.50 ms. Allocated memory was 1.3 GB in the beginning and 1.7 GB in the end (delta: 378.5 MB). Free memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: -365.7 MB). Peak memory consumption was 435.7 MB. Max. memory is 11.5 GB. * Witness Printer took 129.13 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 752]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L238] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L757] int cleanupTimeShifts = 4; [L853] int waterLevel = 1; [L854] int methaneLevelCritical = 0; [L830] int retValue_acc ; [L831] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L464] int retValue_acc ; [L467] retValue_acc = 1 [L468] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L837] tmp = valid_product() [L839] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L480] int splverifierCounter ; [L481] int tmp ; [L482] int tmp___0 ; [L483] int tmp___1 ; [L484] int tmp___2 ; [L487] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L489] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L491] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] tmp = __VERIFIER_nondet_int() [L499] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L871] COND TRUE waterLevel < 2 [L872] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L507] tmp___0 = __VERIFIER_nondet_int() [L509] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L517] tmp___2 = __VERIFIER_nondet_int() [L519] COND TRUE \read(tmp___2) [L743] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L562] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] COND TRUE \read(systemActive) [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L594] COND TRUE ! pumpRunning [L706] int retValue_acc ; [L707] int tmp ; [L708] int tmp___0 ; [L933] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L936] COND FALSE !(waterLevel < 2) [L940] retValue_acc = 0 [L941] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L712] tmp = isHighWaterSensorDry() [L714] COND FALSE !(\read(tmp)) [L717] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L719] retValue_acc = tmp___0 [L720] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] tmp = isHighWaterLevel() [L598] COND TRUE \read(tmp) [L625] int tmp ; [L650] int retValue_acc ; [L892] int retValue_acc ; [L895] retValue_acc = methaneLevelCritical [L896] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] retValue_acc = isMethaneLevelCritical() [L656] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L629] tmp = isMethaneAlarm() [L631] COND FALSE !(\read(tmp)) [L619] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; [L924] int retValue_acc ; [L927] retValue_acc = waterLevel [L928] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L489] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L491] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L497] tmp = __VERIFIER_nondet_int() [L499] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L507] tmp___0 = __VERIFIER_nondet_int() [L509] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L517] tmp___2 = __VERIFIER_nondet_int() [L519] COND TRUE \read(tmp___2) [L743] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L562] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L859] COND TRUE waterLevel > 0 [L860] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L569] COND TRUE \read(systemActive) [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L594] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L44] int tmp ; [L45] int tmp___0 ; [L924] int retValue_acc ; [L927] retValue_acc = waterLevel [L928] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L489] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L491] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L497] tmp = __VERIFIER_nondet_int() [L499] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L507] tmp___0 = __VERIFIER_nondet_int() [L509] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L517] tmp___2 = __VERIFIER_nondet_int() [L519] COND TRUE \read(tmp___2) [L743] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L562] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L859] COND TRUE waterLevel > 0 [L860] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L569] COND TRUE \read(systemActive) [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L594] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L44] int tmp ; [L45] int tmp___0 ; [L924] int retValue_acc ; [L927] retValue_acc = waterLevel [L928] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] tmp = getWaterLevel() [L51] COND TRUE tmp == 0 [L661] int retValue_acc ; [L664] retValue_acc = pumpRunning [L665] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L752] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.2s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 900 SDtfs, 1160 SDslu, 1447 SDs, 0 SdLazy, 201 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=327occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 1163 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 387 NumberOfCodeBlocks, 387 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 19227 SizeOfPredicates, 4 NumberOfNonLiveVariables, 394 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 22/28 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...