./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_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_8de5c30f-183f-41a5-981b-45be6f48c9e3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8de5c30f-183f-41a5-981b-45be6f48c9e3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8de5c30f-183f-41a5-981b-45be6f48c9e3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8de5c30f-183f-41a5-981b-45be6f48c9e3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8de5c30f-183f-41a5-981b-45be6f48c9e3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8de5c30f-183f-41a5-981b-45be6f48c9e3/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 c300c29b8d9fc061a97d8a30a731a0ec640f0644 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 09:00:27,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:27,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:27,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:27,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:27,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:27,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:27,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:27,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:27,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:27,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:27,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:27,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:27,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:27,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:27,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:27,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:27,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:27,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:27,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:27,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:27,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:27,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:27,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:27,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:27,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:27,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:27,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:27,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:27,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:27,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:27,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:27,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:27,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:27,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:27,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:27,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:27,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:27,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:27,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:27,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:27,828 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8de5c30f-183f-41a5-981b-45be6f48c9e3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:00:27,841 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:27,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:27,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:27,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:27,843 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:27,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:27,844 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:27,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:27,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:27,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:27,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:27,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:27,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:27,845 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:27,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:27,845 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:27,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:27,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:27,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:27,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:27,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:27,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:27,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:27,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:27,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:27,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:27,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:27,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:27,848 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_8de5c30f-183f-41a5-981b-45be6f48c9e3/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 -> c300c29b8d9fc061a97d8a30a731a0ec640f0644 [2019-10-22 09:00:27,876 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:27,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:27,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:27,895 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:27,895 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:27,896 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8de5c30f-183f-41a5-981b-45be6f48c9e3/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2019-10-22 09:00:27,947 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8de5c30f-183f-41a5-981b-45be6f48c9e3/bin/uautomizer/data/f82b02d6d/9d2b2263339145978768fc3a8dfc4e00/FLAG3771c9884 [2019-10-22 09:00:28,407 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:28,408 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8de5c30f-183f-41a5-981b-45be6f48c9e3/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2019-10-22 09:00:28,425 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8de5c30f-183f-41a5-981b-45be6f48c9e3/bin/uautomizer/data/f82b02d6d/9d2b2263339145978768fc3a8dfc4e00/FLAG3771c9884 [2019-10-22 09:00:28,920 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8de5c30f-183f-41a5-981b-45be6f48c9e3/bin/uautomizer/data/f82b02d6d/9d2b2263339145978768fc3a8dfc4e00 [2019-10-22 09:00:28,922 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:28,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:28,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:28,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:28,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:28,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:28" (1/1) ... [2019-10-22 09:00:28,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a99c76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:28, skipping insertion in model container [2019-10-22 09:00:28,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:28" (1/1) ... [2019-10-22 09:00:28,943 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:28,997 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:29,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:29,444 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:29,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:29,579 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:29,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:29 WrapperNode [2019-10-22 09:00:29,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:29,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:29,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:29,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:29,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:29" (1/1) ... [2019-10-22 09:00:29,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:29" (1/1) ... [2019-10-22 09:00:29,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:29,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:29,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:29,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:29,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:29" (1/1) ... [2019-10-22 09:00:29,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:29" (1/1) ... [2019-10-22 09:00:29,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:29" (1/1) ... [2019-10-22 09:00:29,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:29" (1/1) ... [2019-10-22 09:00:29,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:29" (1/1) ... [2019-10-22 09:00:29,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:29" (1/1) ... [2019-10-22 09:00:29,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:29" (1/1) ... [2019-10-22 09:00:29,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:29,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:29,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:29,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:29,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8de5c30f-183f-41a5-981b-45be6f48c9e3/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 09:00:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:00:29,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:30,497 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:30,498 INFO L284 CfgBuilder]: Removed 102 assume(true) statements. [2019-10-22 09:00:30,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:30 BoogieIcfgContainer [2019-10-22 09:00:30,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:30,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:30,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:30,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:30,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:28" (1/3) ... [2019-10-22 09:00:30,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f6416d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:30, skipping insertion in model container [2019-10-22 09:00:30,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:29" (2/3) ... [2019-10-22 09:00:30,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f6416d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:30, skipping insertion in model container [2019-10-22 09:00:30,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:30" (3/3) ... [2019-10-22 09:00:30,509 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2019-10-22 09:00:30,522 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:30,531 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 09:00:30,543 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 09:00:30,583 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:30,583 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:00:30,583 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:30,583 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:30,583 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:30,584 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:30,584 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:30,584 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:30,604 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-10-22 09:00:30,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 09:00:30,613 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:30,614 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 09:00:30,615 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:30,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:30,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1673386384, now seen corresponding path program 1 times [2019-10-22 09:00:30,634 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:30,634 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588358244] [2019-10-22 09:00:30,634 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:30,634 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:30,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:30,872 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 09:00:30,873 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588358244] [2019-10-22 09:00:30,874 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:30,874 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:00:30,874 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929764161] [2019-10-22 09:00:30,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:00:30,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:30,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:00:30,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:00:30,896 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2019-10-22 09:00:30,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:30,925 INFO L93 Difference]: Finished difference Result 161 states and 246 transitions. [2019-10-22 09:00:30,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:00:30,927 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 09:00:30,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:30,947 INFO L225 Difference]: With dead ends: 161 [2019-10-22 09:00:30,947 INFO L226 Difference]: Without dead ends: 80 [2019-10-22 09:00:30,952 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 09:00:30,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-10-22 09:00:31,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2019-10-22 09:00:31,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-10-22 09:00:31,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2019-10-22 09:00:31,005 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 18 [2019-10-22 09:00:31,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:31,009 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2019-10-22 09:00:31,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:00:31,009 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2019-10-22 09:00:31,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:00:31,010 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:31,010 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 09:00:31,011 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:31,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:31,011 INFO L82 PathProgramCache]: Analyzing trace with hash 572864739, now seen corresponding path program 1 times [2019-10-22 09:00:31,012 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:31,012 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455883710] [2019-10-22 09:00:31,012 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,012 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,185 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 09:00:31,185 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455883710] [2019-10-22 09:00:31,186 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:31,186 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:31,186 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938649755] [2019-10-22 09:00:31,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:31,188 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:31,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:31,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:31,189 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand 3 states. [2019-10-22 09:00:31,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:31,208 INFO L93 Difference]: Finished difference Result 80 states and 115 transitions. [2019-10-22 09:00:31,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:31,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 09:00:31,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:31,212 INFO L225 Difference]: With dead ends: 80 [2019-10-22 09:00:31,212 INFO L226 Difference]: Without dead ends: 38 [2019-10-22 09:00:31,213 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 09:00:31,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-22 09:00:31,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-10-22 09:00:31,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-22 09:00:31,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2019-10-22 09:00:31,219 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2019-10-22 09:00:31,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:31,219 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2019-10-22 09:00:31,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:31,219 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2019-10-22 09:00:31,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 09:00:31,220 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:31,220 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 09:00:31,221 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:31,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:31,221 INFO L82 PathProgramCache]: Analyzing trace with hash -2071848385, now seen corresponding path program 1 times [2019-10-22 09:00:31,222 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:31,222 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071465940] [2019-10-22 09:00:31,222 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,222 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,356 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 09:00:31,356 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071465940] [2019-10-22 09:00:31,356 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:31,357 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:00:31,357 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47438274] [2019-10-22 09:00:31,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:00:31,363 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:31,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:00:31,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:31,364 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 6 states. [2019-10-22 09:00:31,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:31,491 INFO L93 Difference]: Finished difference Result 124 states and 184 transitions. [2019-10-22 09:00:31,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:31,492 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-10-22 09:00:31,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:31,493 INFO L225 Difference]: With dead ends: 124 [2019-10-22 09:00:31,493 INFO L226 Difference]: Without dead ends: 93 [2019-10-22 09:00:31,494 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 09:00:31,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-10-22 09:00:31,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2019-10-22 09:00:31,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-10-22 09:00:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 85 transitions. [2019-10-22 09:00:31,506 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 85 transitions. Word has length 24 [2019-10-22 09:00:31,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:31,507 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 85 transitions. [2019-10-22 09:00:31,507 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:00:31,507 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions. [2019-10-22 09:00:31,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 09:00:31,508 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:31,508 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 09:00:31,508 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:31,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:31,509 INFO L82 PathProgramCache]: Analyzing trace with hash 343514617, now seen corresponding path program 1 times [2019-10-22 09:00:31,510 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:31,510 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679238076] [2019-10-22 09:00:31,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,594 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 09:00:31,594 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679238076] [2019-10-22 09:00:31,594 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:31,595 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:00:31,595 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543138079] [2019-10-22 09:00:31,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:31,595 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:31,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:31,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:31,596 INFO L87 Difference]: Start difference. First operand 58 states and 85 transitions. Second operand 3 states. [2019-10-22 09:00:31,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:31,648 INFO L93 Difference]: Finished difference Result 131 states and 195 transitions. [2019-10-22 09:00:31,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:31,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-22 09:00:31,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:31,650 INFO L225 Difference]: With dead ends: 131 [2019-10-22 09:00:31,650 INFO L226 Difference]: Without dead ends: 80 [2019-10-22 09:00:31,650 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 09:00:31,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-10-22 09:00:31,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2019-10-22 09:00:31,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-10-22 09:00:31,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2019-10-22 09:00:31,662 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 25 [2019-10-22 09:00:31,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:31,662 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2019-10-22 09:00:31,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:31,662 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2019-10-22 09:00:31,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 09:00:31,663 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:31,663 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 09:00:31,663 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:31,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:31,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1750340408, now seen corresponding path program 1 times [2019-10-22 09:00:31,664 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:31,664 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475066050] [2019-10-22 09:00:31,664 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,665 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,758 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 09:00:31,765 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475066050] [2019-10-22 09:00:31,765 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:31,766 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:00:31,766 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092502698] [2019-10-22 09:00:31,766 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:00:31,767 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:31,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:00:31,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:31,767 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand 5 states. [2019-10-22 09:00:31,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:31,926 INFO L93 Difference]: Finished difference Result 361 states and 530 transitions. [2019-10-22 09:00:31,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:00:31,927 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 09:00:31,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:31,929 INFO L225 Difference]: With dead ends: 361 [2019-10-22 09:00:31,929 INFO L226 Difference]: Without dead ends: 290 [2019-10-22 09:00:31,930 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 09:00:31,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2019-10-22 09:00:31,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 138. [2019-10-22 09:00:31,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-10-22 09:00:31,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 195 transitions. [2019-10-22 09:00:31,972 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 195 transitions. Word has length 27 [2019-10-22 09:00:31,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:31,972 INFO L462 AbstractCegarLoop]: Abstraction has 138 states and 195 transitions. [2019-10-22 09:00:31,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:00:31,972 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 195 transitions. [2019-10-22 09:00:31,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 09:00:31,979 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:31,979 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 09:00:31,979 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:31,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:31,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1110481728, now seen corresponding path program 1 times [2019-10-22 09:00:31,980 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:31,980 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683020019] [2019-10-22 09:00:31,980 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,980 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:32,066 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 09:00:32,066 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683020019] [2019-10-22 09:00:32,066 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:32,067 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:00:32,067 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477758321] [2019-10-22 09:00:32,067 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:00:32,067 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:32,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:00:32,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:32,068 INFO L87 Difference]: Start difference. First operand 138 states and 195 transitions. Second operand 5 states. [2019-10-22 09:00:32,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:32,208 INFO L93 Difference]: Finished difference Result 499 states and 711 transitions. [2019-10-22 09:00:32,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 09:00:32,209 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-10-22 09:00:32,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:32,210 INFO L225 Difference]: With dead ends: 499 [2019-10-22 09:00:32,211 INFO L226 Difference]: Without dead ends: 368 [2019-10-22 09:00:32,212 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 09:00:32,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2019-10-22 09:00:32,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 136. [2019-10-22 09:00:32,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-22 09:00:32,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 189 transitions. [2019-10-22 09:00:32,235 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 189 transitions. Word has length 28 [2019-10-22 09:00:32,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:32,235 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 189 transitions. [2019-10-22 09:00:32,235 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:00:32,235 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 189 transitions. [2019-10-22 09:00:32,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 09:00:32,236 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:32,237 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] [2019-10-22 09:00:32,237 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:32,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:32,237 INFO L82 PathProgramCache]: Analyzing trace with hash -2071146496, now seen corresponding path program 1 times [2019-10-22 09:00:32,238 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:32,238 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295070145] [2019-10-22 09:00:32,238 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,238 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:32,302 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 09:00:32,303 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295070145] [2019-10-22 09:00:32,303 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:32,303 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:00:32,303 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729193015] [2019-10-22 09:00:32,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:00:32,304 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:32,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:00:32,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:32,305 INFO L87 Difference]: Start difference. First operand 136 states and 189 transitions. Second operand 5 states. [2019-10-22 09:00:32,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:32,384 INFO L93 Difference]: Finished difference Result 401 states and 556 transitions. [2019-10-22 09:00:32,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:32,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-10-22 09:00:32,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:32,387 INFO L225 Difference]: With dead ends: 401 [2019-10-22 09:00:32,387 INFO L226 Difference]: Without dead ends: 272 [2019-10-22 09:00:32,388 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 09:00:32,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2019-10-22 09:00:32,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 142. [2019-10-22 09:00:32,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-10-22 09:00:32,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2019-10-22 09:00:32,426 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 195 transitions. Word has length 32 [2019-10-22 09:00:32,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:32,427 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 195 transitions. [2019-10-22 09:00:32,427 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:00:32,427 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 195 transitions. [2019-10-22 09:00:32,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 09:00:32,429 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:32,429 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] [2019-10-22 09:00:32,429 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:32,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:32,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1370081918, now seen corresponding path program 1 times [2019-10-22 09:00:32,430 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:32,430 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663007589] [2019-10-22 09:00:32,430 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,430 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:32,512 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 09:00:32,512 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663007589] [2019-10-22 09:00:32,513 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:32,513 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:00:32,513 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670290938] [2019-10-22 09:00:32,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:00:32,514 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:32,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:00:32,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:32,514 INFO L87 Difference]: Start difference. First operand 142 states and 195 transitions. Second operand 6 states. [2019-10-22 09:00:32,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:32,618 INFO L93 Difference]: Finished difference Result 435 states and 595 transitions. [2019-10-22 09:00:32,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:00:32,619 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-10-22 09:00:32,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:32,621 INFO L225 Difference]: With dead ends: 435 [2019-10-22 09:00:32,621 INFO L226 Difference]: Without dead ends: 300 [2019-10-22 09:00:32,622 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:00:32,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-10-22 09:00:32,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 146. [2019-10-22 09:00:32,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-10-22 09:00:32,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 199 transitions. [2019-10-22 09:00:32,651 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 199 transitions. Word has length 32 [2019-10-22 09:00:32,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:32,652 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 199 transitions. [2019-10-22 09:00:32,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:00:32,652 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 199 transitions. [2019-10-22 09:00:32,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 09:00:32,657 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:32,658 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] [2019-10-22 09:00:32,658 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:32,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:32,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1956887932, now seen corresponding path program 1 times [2019-10-22 09:00:32,658 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:32,659 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529308488] [2019-10-22 09:00:32,659 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,659 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:32,708 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 09:00:32,708 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529308488] [2019-10-22 09:00:32,708 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:32,709 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:00:32,709 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202347917] [2019-10-22 09:00:32,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:32,710 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:32,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:32,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:32,711 INFO L87 Difference]: Start difference. First operand 146 states and 199 transitions. Second operand 3 states. [2019-10-22 09:00:32,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:32,766 INFO L93 Difference]: Finished difference Result 371 states and 505 transitions. [2019-10-22 09:00:32,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:32,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2019-10-22 09:00:32,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:32,768 INFO L225 Difference]: With dead ends: 371 [2019-10-22 09:00:32,768 INFO L226 Difference]: Without dead ends: 232 [2019-10-22 09:00:32,769 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 09:00:32,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2019-10-22 09:00:32,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2019-10-22 09:00:32,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2019-10-22 09:00:32,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 307 transitions. [2019-10-22 09:00:32,804 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 307 transitions. Word has length 32 [2019-10-22 09:00:32,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:32,805 INFO L462 AbstractCegarLoop]: Abstraction has 232 states and 307 transitions. [2019-10-22 09:00:32,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:32,805 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 307 transitions. [2019-10-22 09:00:32,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 09:00:32,808 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:32,808 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 09:00:32,811 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:32,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:32,815 INFO L82 PathProgramCache]: Analyzing trace with hash 875175876, now seen corresponding path program 1 times [2019-10-22 09:00:32,815 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:32,815 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631949367] [2019-10-22 09:00:32,816 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,816 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:32,872 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 09:00:32,872 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631949367] [2019-10-22 09:00:32,873 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:32,873 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:32,873 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897493644] [2019-10-22 09:00:32,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:32,878 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:32,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:32,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:32,879 INFO L87 Difference]: Start difference. First operand 232 states and 307 transitions. Second operand 3 states. [2019-10-22 09:00:32,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:32,950 INFO L93 Difference]: Finished difference Result 315 states and 418 transitions. [2019-10-22 09:00:32,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:32,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-10-22 09:00:32,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:32,952 INFO L225 Difference]: With dead ends: 315 [2019-10-22 09:00:32,952 INFO L226 Difference]: Without dead ends: 313 [2019-10-22 09:00:32,953 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 09:00:32,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-10-22 09:00:33,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 265. [2019-10-22 09:00:33,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2019-10-22 09:00:33,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 356 transitions. [2019-10-22 09:00:33,011 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 356 transitions. Word has length 33 [2019-10-22 09:00:33,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:33,011 INFO L462 AbstractCegarLoop]: Abstraction has 265 states and 356 transitions. [2019-10-22 09:00:33,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:33,011 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 356 transitions. [2019-10-22 09:00:33,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 09:00:33,012 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:33,013 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 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] [2019-10-22 09:00:33,013 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:33,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:33,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1646221848, now seen corresponding path program 1 times [2019-10-22 09:00:33,015 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:33,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276576822] [2019-10-22 09:00:33,016 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:33,016 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:33,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:33,715 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:33,715 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:00:33,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:33 BoogieIcfgContainer [2019-10-22 09:00:33,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:33,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:33,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:33,834 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:33,835 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:30" (3/4) ... [2019-10-22 09:00:33,837 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:00:33,957 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8de5c30f-183f-41a5-981b-45be6f48c9e3/bin/uautomizer/witness.graphml [2019-10-22 09:00:33,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:33,959 INFO L168 Benchmark]: Toolchain (without parser) took 5035.18 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 240.1 MB). Free memory was 944.5 MB in the beginning and 1.0 GB in the end (delta: -88.6 MB). Peak memory consumption was 151.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:33,961 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:33,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -202.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:33,962 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.77 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:33,962 INFO L168 Benchmark]: Boogie Preprocessor took 37.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:33,962 INFO L168 Benchmark]: RCFGBuilder took 813.33 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: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:33,963 INFO L168 Benchmark]: TraceAbstraction took 3333.95 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.4 MB). Peak memory consumption was 92.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:33,963 INFO L168 Benchmark]: Witness Printer took 123.22 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:33,964 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 655.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -202.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.77 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 813.33 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: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3333.95 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.4 MB). Peak memory consumption was 92.4 MB. Max. memory is 11.5 GB. * Witness Printer took 123.22 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 736]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int pumpRunning = 0; [L417] int systemActive = 1; [L655] int methAndRunningLastTime ; [L741] int cleanupTimeShifts = 4; [L839] int waterLevel = 1; [L840] int methaneLevelCritical = 0; [L815] int retValue_acc ; [L816] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L723] int retValue_acc ; [L726] retValue_acc = 1 [L727] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L822] tmp = valid_product() [L824] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L660] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L588] int splverifierCounter ; [L589] int tmp ; [L590] int tmp___0 ; [L591] int tmp___1 ; [L592] int tmp___2 ; [L595] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L597] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L599] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L605] tmp = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L857] COND TRUE waterLevel < 2 [L858] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L615] tmp___0 = __VERIFIER_nondet_int() [L617] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L869] COND FALSE !(\read(methaneLevelCritical)) [L872] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L625] tmp___2 = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L424] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L431] COND TRUE \read(systemActive) [L453] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L456] COND TRUE ! pumpRunning [L550] int retValue_acc ; [L551] int tmp ; [L552] int tmp___0 ; [L919] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L922] COND FALSE !(waterLevel < 2) [L926] retValue_acc = 0 [L927] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L556] tmp = isHighWaterSensorDry() [L558] COND FALSE !(\read(tmp)) [L561] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L563] retValue_acc = tmp___0 [L564] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L458] tmp = isHighWaterLevel() [L460] COND TRUE \read(tmp) [L481] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L665] int tmp ; [L666] int tmp___0 ; [L878] int retValue_acc ; [L881] retValue_acc = methaneLevelCritical [L882] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L670] tmp = isMethaneLevelCritical() [L672] COND TRUE \read(tmp) [L505] int retValue_acc ; [L508] retValue_acc = pumpRunning [L509] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L674] tmp___0 = isPumpRunning() [L676] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L677] COND FALSE !(\read(methAndRunningLastTime)) [L682] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L597] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L599] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L605] tmp = __VERIFIER_nondet_int() [L607] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L615] tmp___0 = __VERIFIER_nondet_int() [L617] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L625] tmp___2 = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L424] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L845] COND TRUE waterLevel > 0 [L846] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L431] COND TRUE \read(systemActive) [L453] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L456] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L665] int tmp ; [L666] int tmp___0 ; [L878] int retValue_acc ; [L881] retValue_acc = methaneLevelCritical [L882] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L670] tmp = isMethaneLevelCritical() [L672] COND TRUE \read(tmp) [L505] int retValue_acc ; [L508] retValue_acc = pumpRunning [L509] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L674] tmp___0 = isPumpRunning() [L676] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L677] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L736] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.2s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 708 SDtfs, 995 SDslu, 1212 SDs, 0 SdLazy, 134 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=265occurred 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, 753 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 14762 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...