./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product52.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/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/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 8aa13c479cead5ea7576ebfa7eb0df26504503d1 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:40:12,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:40:12,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:40:12,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:40:12,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:40:12,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:40:12,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:40:12,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:40:12,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:40:12,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:40:12,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:40:12,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:40:12,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:40:12,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:40:12,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:40:12,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:40:12,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:40:12,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:40:12,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:40:12,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:40:12,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:40:12,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:40:12,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:40:12,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:40:12,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:40:12,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:40:12,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:40:12,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:40:12,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:40:12,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:40:12,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:40:12,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:40:12,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:40:12,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:40:12,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:40:12,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:40:12,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:40:12,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:40:12,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:40:12,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:40:12,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:40:12,805 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:40:12,822 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:40:12,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:40:12,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:40:12,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:40:12,824 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:40:12,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:40:12,825 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:40:12,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:40:12,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:40:12,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:40:12,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:40:12,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:40:12,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:40:12,826 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:40:12,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:40:12,827 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:40:12,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:40:12,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:40:12,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:40:12,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:40:12,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:40:12,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:40:12,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:40:12,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:40:12,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:40:12,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:40:12,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:40:12,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:40:12,830 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/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/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 -> 8aa13c479cead5ea7576ebfa7eb0df26504503d1 [2019-11-15 23:40:12,865 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:40:12,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:40:12,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:40:12,883 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:40:12,883 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:40:12,884 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2019-11-15 23:40:12,969 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/bin/uautomizer/data/5599ec4b0/6eca9c52a529461d9e80357239e47269/FLAG9d39d6660 [2019-11-15 23:40:13,522 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:40:13,523 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2019-11-15 23:40:13,538 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/bin/uautomizer/data/5599ec4b0/6eca9c52a529461d9e80357239e47269/FLAG9d39d6660 [2019-11-15 23:40:13,779 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/bin/uautomizer/data/5599ec4b0/6eca9c52a529461d9e80357239e47269 [2019-11-15 23:40:13,782 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:40:13,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:40:13,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:40:13,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:40:13,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:40:13,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:40:13" (1/1) ... [2019-11-15 23:40:13,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f16afc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:40:13, skipping insertion in model container [2019-11-15 23:40:13,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:40:13" (1/1) ... [2019-11-15 23:40:13,805 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:40:13,885 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:40:14,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:40:14,463 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:40:14,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:40:14,639 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:40:14,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:40:14 WrapperNode [2019-11-15 23:40:14,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:40:14,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:40:14,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:40:14,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:40:14,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:40:14" (1/1) ... [2019-11-15 23:40:14,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:40:14" (1/1) ... [2019-11-15 23:40:14,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:40:14,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:40:14,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:40:14,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:40:14,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:40:14" (1/1) ... [2019-11-15 23:40:14,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:40:14" (1/1) ... [2019-11-15 23:40:14,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:40:14" (1/1) ... [2019-11-15 23:40:14,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:40:14" (1/1) ... [2019-11-15 23:40:14,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:40:14" (1/1) ... [2019-11-15 23:40:14,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:40:14" (1/1) ... [2019-11-15 23:40:14,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:40:14" (1/1) ... [2019-11-15 23:40:14,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:40:14,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:40:14,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:40:14,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:40:14,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:40:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/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 [2019-11-15 23:40:14,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:40:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 23:40:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:40:14,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:40:15,983 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:40:15,983 INFO L284 CfgBuilder]: Removed 164 assume(true) statements. [2019-11-15 23:40:15,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:40:15 BoogieIcfgContainer [2019-11-15 23:40:15,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:40:15,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:40:15,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:40:15,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:40:15,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:40:13" (1/3) ... [2019-11-15 23:40:15,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36eea16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:40:15, skipping insertion in model container [2019-11-15 23:40:15,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:40:14" (2/3) ... [2019-11-15 23:40:15,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36eea16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:40:15, skipping insertion in model container [2019-11-15 23:40:15,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:40:15" (3/3) ... [2019-11-15 23:40:16,000 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2019-11-15 23:40:16,011 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:40:16,023 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-15 23:40:16,035 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-15 23:40:16,076 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:40:16,076 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:40:16,077 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:40:16,077 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:40:16,079 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:40:16,079 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:40:16,079 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:40:16,079 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:40:16,107 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2019-11-15 23:40:16,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 23:40:16,116 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:40:16,117 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:40:16,119 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:40:16,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:40:16,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1471206820, now seen corresponding path program 1 times [2019-11-15 23:40:16,135 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:40:16,136 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463020110] [2019-11-15 23:40:16,136 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:16,136 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:16,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:40:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:16,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:40:16,477 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463020110] [2019-11-15 23:40:16,478 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:40:16,478 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 23:40:16,479 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576866960] [2019-11-15 23:40:16,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:40:16,483 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:40:16,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:40:16,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:40:16,502 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 2 states. [2019-11-15 23:40:16,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:40:16,564 INFO L93 Difference]: Finished difference Result 239 states and 366 transitions. [2019-11-15 23:40:16,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:40:16,567 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-15 23:40:16,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:40:16,587 INFO L225 Difference]: With dead ends: 239 [2019-11-15 23:40:16,588 INFO L226 Difference]: Without dead ends: 119 [2019-11-15 23:40:16,592 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 [2019-11-15 23:40:16,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-11-15 23:40:16,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-11-15 23:40:16,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-15 23:40:16,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 175 transitions. [2019-11-15 23:40:16,648 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 175 transitions. Word has length 18 [2019-11-15 23:40:16,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:40:16,649 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 175 transitions. [2019-11-15 23:40:16,649 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:40:16,649 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 175 transitions. [2019-11-15 23:40:16,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 23:40:16,651 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:40:16,651 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:40:16,651 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:40:16,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:40:16,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1252370851, now seen corresponding path program 1 times [2019-11-15 23:40:16,652 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:40:16,652 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378941565] [2019-11-15 23:40:16,652 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:16,653 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:16,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:40:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:16,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:40:16,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378941565] [2019-11-15 23:40:16,796 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:40:16,796 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:40:16,796 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103649399] [2019-11-15 23:40:16,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 23:40:16,798 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:40:16,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:40:16,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:40:16,799 INFO L87 Difference]: Start difference. First operand 119 states and 175 transitions. Second operand 3 states. [2019-11-15 23:40:16,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:40:16,829 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2019-11-15 23:40:16,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:40:16,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-15 23:40:16,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:40:16,833 INFO L225 Difference]: With dead ends: 119 [2019-11-15 23:40:16,834 INFO L226 Difference]: Without dead ends: 51 [2019-11-15 23:40:16,835 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 [2019-11-15 23:40:16,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-15 23:40:16,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-11-15 23:40:16,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-11-15 23:40:16,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2019-11-15 23:40:16,855 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2019-11-15 23:40:16,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:40:16,856 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2019-11-15 23:40:16,856 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 23:40:16,856 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2019-11-15 23:40:16,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-15 23:40:16,858 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:40:16,859 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] [2019-11-15 23:40:16,859 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:40:16,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:40:16,859 INFO L82 PathProgramCache]: Analyzing trace with hash 70895168, now seen corresponding path program 1 times [2019-11-15 23:40:16,860 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:40:16,860 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214814521] [2019-11-15 23:40:16,860 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:16,860 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:16,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:40:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:40:16,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214814521] [2019-11-15 23:40:16,986 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:40:16,986 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:40:16,986 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801421202] [2019-11-15 23:40:16,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 23:40:16,987 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:40:16,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:40:16,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:40:16,988 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 3 states. [2019-11-15 23:40:17,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:40:17,036 INFO L93 Difference]: Finished difference Result 139 states and 208 transitions. [2019-11-15 23:40:17,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:40:17,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-15 23:40:17,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:40:17,038 INFO L225 Difference]: With dead ends: 139 [2019-11-15 23:40:17,039 INFO L226 Difference]: Without dead ends: 95 [2019-11-15 23:40:17,039 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 [2019-11-15 23:40:17,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-15 23:40:17,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91. [2019-11-15 23:40:17,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-15 23:40:17,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 136 transitions. [2019-11-15 23:40:17,067 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 136 transitions. Word has length 24 [2019-11-15 23:40:17,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:40:17,070 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 136 transitions. [2019-11-15 23:40:17,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 23:40:17,070 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 136 transitions. [2019-11-15 23:40:17,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 23:40:17,072 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:40:17,072 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] [2019-11-15 23:40:17,072 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:40:17,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:40:17,073 INFO L82 PathProgramCache]: Analyzing trace with hash 2090863582, now seen corresponding path program 1 times [2019-11-15 23:40:17,073 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:40:17,073 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644460320] [2019-11-15 23:40:17,073 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:17,074 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:17,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:40:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:17,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:40:17,146 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644460320] [2019-11-15 23:40:17,146 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:40:17,146 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 23:40:17,146 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180535724] [2019-11-15 23:40:17,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 23:40:17,147 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:40:17,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:40:17,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:40:17,148 INFO L87 Difference]: Start difference. First operand 91 states and 136 transitions. Second operand 3 states. [2019-11-15 23:40:17,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:40:17,215 INFO L93 Difference]: Finished difference Result 218 states and 331 transitions. [2019-11-15 23:40:17,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:40:17,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-11-15 23:40:17,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:40:17,218 INFO L225 Difference]: With dead ends: 218 [2019-11-15 23:40:17,218 INFO L226 Difference]: Without dead ends: 134 [2019-11-15 23:40:17,219 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 [2019-11-15 23:40:17,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-11-15 23:40:17,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2019-11-15 23:40:17,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-15 23:40:17,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 194 transitions. [2019-11-15 23:40:17,235 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 194 transitions. Word has length 26 [2019-11-15 23:40:17,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:40:17,235 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 194 transitions. [2019-11-15 23:40:17,235 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 23:40:17,236 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 194 transitions. [2019-11-15 23:40:17,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 23:40:17,237 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:40:17,237 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] [2019-11-15 23:40:17,237 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:40:17,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:40:17,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1765382007, now seen corresponding path program 1 times [2019-11-15 23:40:17,238 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:40:17,238 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186844090] [2019-11-15 23:40:17,238 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:17,238 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:17,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:40:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:17,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:40:17,348 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186844090] [2019-11-15 23:40:17,348 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:40:17,348 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:40:17,349 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063521246] [2019-11-15 23:40:17,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:40:17,349 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:40:17,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:40:17,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:40:17,350 INFO L87 Difference]: Start difference. First operand 132 states and 194 transitions. Second operand 5 states. [2019-11-15 23:40:17,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:40:17,462 INFO L93 Difference]: Finished difference Result 692 states and 1031 transitions. [2019-11-15 23:40:17,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 23:40:17,462 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-15 23:40:17,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:40:17,467 INFO L225 Difference]: With dead ends: 692 [2019-11-15 23:40:17,467 INFO L226 Difference]: Without dead ends: 567 [2019-11-15 23:40:17,469 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 [2019-11-15 23:40:17,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2019-11-15 23:40:17,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 243. [2019-11-15 23:40:17,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2019-11-15 23:40:17,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 352 transitions. [2019-11-15 23:40:17,507 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 352 transitions. Word has length 27 [2019-11-15 23:40:17,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:40:17,508 INFO L462 AbstractCegarLoop]: Abstraction has 243 states and 352 transitions. [2019-11-15 23:40:17,508 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:40:17,508 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 352 transitions. [2019-11-15 23:40:17,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-15 23:40:17,513 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:40:17,513 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] [2019-11-15 23:40:17,514 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:40:17,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:40:17,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1095440129, now seen corresponding path program 1 times [2019-11-15 23:40:17,514 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:40:17,515 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34545977] [2019-11-15 23:40:17,515 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:17,515 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:17,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:40:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:17,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:40:17,589 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34545977] [2019-11-15 23:40:17,589 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:40:17,589 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:40:17,589 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849038019] [2019-11-15 23:40:17,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:40:17,590 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:40:17,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:40:17,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:40:17,591 INFO L87 Difference]: Start difference. First operand 243 states and 352 transitions. Second operand 5 states. [2019-11-15 23:40:17,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:40:17,772 INFO L93 Difference]: Finished difference Result 921 states and 1339 transitions. [2019-11-15 23:40:17,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 23:40:17,776 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-11-15 23:40:17,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:40:17,781 INFO L225 Difference]: With dead ends: 921 [2019-11-15 23:40:17,781 INFO L226 Difference]: Without dead ends: 685 [2019-11-15 23:40:17,782 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 [2019-11-15 23:40:17,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2019-11-15 23:40:17,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 241. [2019-11-15 23:40:17,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2019-11-15 23:40:17,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 346 transitions. [2019-11-15 23:40:17,819 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 346 transitions. Word has length 28 [2019-11-15 23:40:17,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:40:17,819 INFO L462 AbstractCegarLoop]: Abstraction has 241 states and 346 transitions. [2019-11-15 23:40:17,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:40:17,820 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 346 transitions. [2019-11-15 23:40:17,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 23:40:17,824 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:40:17,824 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] [2019-11-15 23:40:17,831 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:40:17,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:40:17,832 INFO L82 PathProgramCache]: Analyzing trace with hash 494548661, now seen corresponding path program 1 times [2019-11-15 23:40:17,832 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:40:17,832 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806731491] [2019-11-15 23:40:17,833 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:17,833 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:17,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:40:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:17,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:40:17,905 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806731491] [2019-11-15 23:40:17,906 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:40:17,906 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:40:17,906 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629507047] [2019-11-15 23:40:17,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:40:17,907 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:40:17,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:40:17,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:40:17,907 INFO L87 Difference]: Start difference. First operand 241 states and 346 transitions. Second operand 5 states. [2019-11-15 23:40:18,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:40:18,016 INFO L93 Difference]: Finished difference Result 655 states and 925 transitions. [2019-11-15 23:40:18,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:40:18,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-11-15 23:40:18,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:40:18,020 INFO L225 Difference]: With dead ends: 655 [2019-11-15 23:40:18,020 INFO L226 Difference]: Without dead ends: 421 [2019-11-15 23:40:18,021 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 [2019-11-15 23:40:18,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2019-11-15 23:40:18,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 265. [2019-11-15 23:40:18,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2019-11-15 23:40:18,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 370 transitions. [2019-11-15 23:40:18,051 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 370 transitions. Word has length 33 [2019-11-15 23:40:18,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:40:18,052 INFO L462 AbstractCegarLoop]: Abstraction has 265 states and 370 transitions. [2019-11-15 23:40:18,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:40:18,052 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 370 transitions. [2019-11-15 23:40:18,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 23:40:18,053 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:40:18,053 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] [2019-11-15 23:40:18,053 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:40:18,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:40:18,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1195613239, now seen corresponding path program 1 times [2019-11-15 23:40:18,054 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:40:18,054 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060291689] [2019-11-15 23:40:18,055 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:18,055 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:18,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:40:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:18,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:40:18,118 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060291689] [2019-11-15 23:40:18,118 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:40:18,118 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:40:18,118 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739845961] [2019-11-15 23:40:18,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:40:18,119 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:40:18,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:40:18,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:40:18,120 INFO L87 Difference]: Start difference. First operand 265 states and 370 transitions. Second operand 5 states. [2019-11-15 23:40:18,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:40:18,300 INFO L93 Difference]: Finished difference Result 739 states and 1010 transitions. [2019-11-15 23:40:18,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 23:40:18,301 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-11-15 23:40:18,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:40:18,305 INFO L225 Difference]: With dead ends: 739 [2019-11-15 23:40:18,306 INFO L226 Difference]: Without dead ends: 481 [2019-11-15 23:40:18,308 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:40:18,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2019-11-15 23:40:18,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 281. [2019-11-15 23:40:18,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2019-11-15 23:40:18,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 386 transitions. [2019-11-15 23:40:18,341 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 386 transitions. Word has length 33 [2019-11-15 23:40:18,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:40:18,342 INFO L462 AbstractCegarLoop]: Abstraction has 281 states and 386 transitions. [2019-11-15 23:40:18,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:40:18,342 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 386 transitions. [2019-11-15 23:40:18,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 23:40:18,343 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:40:18,343 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] [2019-11-15 23:40:18,344 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:40:18,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:40:18,344 INFO L82 PathProgramCache]: Analyzing trace with hash 608807225, now seen corresponding path program 1 times [2019-11-15 23:40:18,345 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:40:18,345 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204223558] [2019-11-15 23:40:18,345 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:18,345 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:18,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:40:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:18,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:40:18,408 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204223558] [2019-11-15 23:40:18,408 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:40:18,408 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 23:40:18,408 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359817199] [2019-11-15 23:40:18,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 23:40:18,409 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:40:18,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:40:18,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:40:18,412 INFO L87 Difference]: Start difference. First operand 281 states and 386 transitions. Second operand 3 states. [2019-11-15 23:40:18,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:40:18,471 INFO L93 Difference]: Finished difference Result 659 states and 899 transitions. [2019-11-15 23:40:18,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:40:18,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-11-15 23:40:18,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:40:18,475 INFO L225 Difference]: With dead ends: 659 [2019-11-15 23:40:18,475 INFO L226 Difference]: Without dead ends: 385 [2019-11-15 23:40:18,476 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 [2019-11-15 23:40:18,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2019-11-15 23:40:18,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2019-11-15 23:40:18,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2019-11-15 23:40:18,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 512 transitions. [2019-11-15 23:40:18,519 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 512 transitions. Word has length 33 [2019-11-15 23:40:18,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:40:18,520 INFO L462 AbstractCegarLoop]: Abstraction has 385 states and 512 transitions. [2019-11-15 23:40:18,520 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 23:40:18,520 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 512 transitions. [2019-11-15 23:40:18,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-15 23:40:18,522 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:40:18,526 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, 1] [2019-11-15 23:40:18,527 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:40:18,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:40:18,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1791527943, now seen corresponding path program 1 times [2019-11-15 23:40:18,528 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:40:18,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121604828] [2019-11-15 23:40:18,529 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:18,529 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:18,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:40:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:18,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:40:18,621 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121604828] [2019-11-15 23:40:18,621 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:40:18,622 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:40:18,622 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552411239] [2019-11-15 23:40:18,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 23:40:18,622 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:40:18,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:40:18,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:40:18,623 INFO L87 Difference]: Start difference. First operand 385 states and 512 transitions. Second operand 3 states. [2019-11-15 23:40:18,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:40:18,692 INFO L93 Difference]: Finished difference Result 595 states and 799 transitions. [2019-11-15 23:40:18,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:40:18,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-11-15 23:40:18,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:40:18,697 INFO L225 Difference]: With dead ends: 595 [2019-11-15 23:40:18,697 INFO L226 Difference]: Without dead ends: 593 [2019-11-15 23:40:18,698 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 [2019-11-15 23:40:18,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-11-15 23:40:18,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 472. [2019-11-15 23:40:18,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2019-11-15 23:40:18,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 642 transitions. [2019-11-15 23:40:18,739 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 642 transitions. Word has length 34 [2019-11-15 23:40:18,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:40:18,739 INFO L462 AbstractCegarLoop]: Abstraction has 472 states and 642 transitions. [2019-11-15 23:40:18,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 23:40:18,740 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 642 transitions. [2019-11-15 23:40:18,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-11-15 23:40:18,741 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:40:18,741 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2019-11-15 23:40:18,742 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:40:18,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:40:18,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1550920378, now seen corresponding path program 1 times [2019-11-15 23:40:18,742 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:40:18,743 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768907999] [2019-11-15 23:40:18,743 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:18,743 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:18,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:40:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:18,787 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-15 23:40:18,787 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768907999] [2019-11-15 23:40:18,787 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:40:18,787 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:40:18,788 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823536534] [2019-11-15 23:40:18,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 23:40:18,788 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:40:18,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:40:18,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:40:18,789 INFO L87 Difference]: Start difference. First operand 472 states and 642 transitions. Second operand 3 states. [2019-11-15 23:40:18,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:40:18,861 INFO L93 Difference]: Finished difference Result 789 states and 1068 transitions. [2019-11-15 23:40:18,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:40:18,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2019-11-15 23:40:18,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:40:18,864 INFO L225 Difference]: With dead ends: 789 [2019-11-15 23:40:18,864 INFO L226 Difference]: Without dead ends: 324 [2019-11-15 23:40:18,865 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 [2019-11-15 23:40:18,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-11-15 23:40:18,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 312. [2019-11-15 23:40:18,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2019-11-15 23:40:18,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 415 transitions. [2019-11-15 23:40:18,893 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 415 transitions. Word has length 55 [2019-11-15 23:40:18,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:40:18,893 INFO L462 AbstractCegarLoop]: Abstraction has 312 states and 415 transitions. [2019-11-15 23:40:18,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 23:40:18,894 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 415 transitions. [2019-11-15 23:40:18,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-15 23:40:18,895 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:40:18,895 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:40:18,895 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:40:18,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:40:18,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1315379813, now seen corresponding path program 1 times [2019-11-15 23:40:18,896 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:40:18,896 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477593541] [2019-11-15 23:40:18,896 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:18,896 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:18,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:40:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:19,023 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:40:19,023 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477593541] [2019-11-15 23:40:19,024 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:40:19,024 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 23:40:19,024 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398427764] [2019-11-15 23:40:19,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:40:19,025 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:40:19,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:40:19,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:40:19,025 INFO L87 Difference]: Start difference. First operand 312 states and 415 transitions. Second operand 6 states. [2019-11-15 23:40:19,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:40:19,375 INFO L93 Difference]: Finished difference Result 1729 states and 2355 transitions. [2019-11-15 23:40:19,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 23:40:19,375 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-15 23:40:19,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:40:19,386 INFO L225 Difference]: With dead ends: 1729 [2019-11-15 23:40:19,386 INFO L226 Difference]: Without dead ends: 1512 [2019-11-15 23:40:19,387 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-11-15 23:40:19,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2019-11-15 23:40:19,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 537. [2019-11-15 23:40:19,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-11-15 23:40:19,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 718 transitions. [2019-11-15 23:40:19,447 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 718 transitions. Word has length 58 [2019-11-15 23:40:19,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:40:19,448 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 718 transitions. [2019-11-15 23:40:19,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:40:19,448 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 718 transitions. [2019-11-15 23:40:19,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-15 23:40:19,449 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:40:19,450 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:40:19,450 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:40:19,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:40:19,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1573545251, now seen corresponding path program 1 times [2019-11-15 23:40:19,451 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:40:19,451 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61848078] [2019-11-15 23:40:19,451 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:19,451 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:19,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:40:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:19,531 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-15 23:40:19,531 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61848078] [2019-11-15 23:40:19,532 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636097111] [2019-11-15 23:40:19,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/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 [2019-11-15 23:40:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:19,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 23:40:19,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:40:19,787 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-15 23:40:19,787 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 23:40:19,788 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2019-11-15 23:40:19,788 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701941215] [2019-11-15 23:40:19,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:40:19,788 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:40:19,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:40:19,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:40:19,789 INFO L87 Difference]: Start difference. First operand 537 states and 718 transitions. Second operand 5 states. [2019-11-15 23:40:19,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:40:19,916 INFO L93 Difference]: Finished difference Result 1192 states and 1575 transitions. [2019-11-15 23:40:19,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:40:19,917 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-15 23:40:19,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:40:19,922 INFO L225 Difference]: With dead ends: 1192 [2019-11-15 23:40:19,922 INFO L226 Difference]: Without dead ends: 750 [2019-11-15 23:40:19,923 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:40:19,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2019-11-15 23:40:19,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 362. [2019-11-15 23:40:19,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2019-11-15 23:40:19,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 461 transitions. [2019-11-15 23:40:19,976 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 461 transitions. Word has length 58 [2019-11-15 23:40:19,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:40:19,976 INFO L462 AbstractCegarLoop]: Abstraction has 362 states and 461 transitions. [2019-11-15 23:40:19,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:40:19,976 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 461 transitions. [2019-11-15 23:40:19,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-15 23:40:19,977 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:40:19,978 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-15 23:40:20,183 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:40:20,184 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:40:20,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:40:20,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1084126975, now seen corresponding path program 1 times [2019-11-15 23:40:20,184 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:40:20,184 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035481377] [2019-11-15 23:40:20,185 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:20,185 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:40:20,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:40:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:20,270 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:40:20,271 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035481377] [2019-11-15 23:40:20,271 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106827215] [2019-11-15 23:40:20,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:40:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:40:20,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 23:40:20,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:40:20,473 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:40:20,475 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 23:40:20,476 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-11-15 23:40:20,476 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135764611] [2019-11-15 23:40:20,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 23:40:20,479 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:40:20,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:40:20,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:40:20,480 INFO L87 Difference]: Start difference. First operand 362 states and 461 transitions. Second operand 3 states. [2019-11-15 23:40:20,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:40:20,569 INFO L93 Difference]: Finished difference Result 610 states and 783 transitions. [2019-11-15 23:40:20,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:40:20,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2019-11-15 23:40:20,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:40:20,570 INFO L225 Difference]: With dead ends: 610 [2019-11-15 23:40:20,571 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:40:20,572 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:40:20,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:40:20,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:40:20,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:40:20,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:40:20,573 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2019-11-15 23:40:20,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:40:20,573 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:40:20,573 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 23:40:20,573 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:40:20,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:40:20,774 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:40:20,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 23:40:21,470 WARN L191 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 112 [2019-11-15 23:40:21,592 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 60 [2019-11-15 23:40:21,747 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-11-15 23:40:21,933 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 79 [2019-11-15 23:40:22,441 WARN L191 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 148 [2019-11-15 23:40:22,810 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 132 [2019-11-15 23:40:23,413 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 156 [2019-11-15 23:40:23,766 WARN L191 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 126 [2019-11-15 23:40:24,318 WARN L191 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 162 [2019-11-15 23:40:24,642 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 134 [2019-11-15 23:40:25,047 WARN L191 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 163 [2019-11-15 23:40:26,032 WARN L191 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 6 [2019-11-15 23:40:26,375 WARN L191 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 22 [2019-11-15 23:40:26,899 WARN L191 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 22 [2019-11-15 23:40:27,281 WARN L191 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 26 [2019-11-15 23:40:28,527 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 142 DAG size of output: 21 [2019-11-15 23:40:29,300 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 22 [2019-11-15 23:40:30,230 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 21 [2019-11-15 23:40:30,835 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 26 [2019-11-15 23:40:31,828 WARN L191 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 24 [2019-11-15 23:40:32,493 WARN L191 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 22 [2019-11-15 23:40:33,564 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 157 DAG size of output: 24 [2019-11-15 23:40:33,566 INFO L443 ceAbstractionStarter]: For program point L432(lines 432 439) no Hoare annotation was computed. [2019-11-15 23:40:33,566 INFO L446 ceAbstractionStarter]: At program point L432-1(lines 432 439) the Hoare annotation is: true [2019-11-15 23:40:33,567 INFO L443 ceAbstractionStarter]: For program point L168(lines 168 176) no Hoare annotation was computed. [2019-11-15 23:40:33,567 INFO L443 ceAbstractionStarter]: For program point L168-1(lines 168 176) no Hoare annotation was computed. [2019-11-15 23:40:33,567 INFO L443 ceAbstractionStarter]: For program point L168-2(lines 168 176) no Hoare annotation was computed. [2019-11-15 23:40:33,567 INFO L443 ceAbstractionStarter]: For program point L168-3(lines 168 176) no Hoare annotation was computed. [2019-11-15 23:40:33,567 INFO L443 ceAbstractionStarter]: For program point L168-4(lines 168 176) no Hoare annotation was computed. [2019-11-15 23:40:33,567 INFO L443 ceAbstractionStarter]: For program point L168-5(lines 168 176) no Hoare annotation was computed. [2019-11-15 23:40:33,567 INFO L439 ceAbstractionStarter]: At program point L565(lines 560 568) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (and .cse1 (= 0 ~methaneLevelCritical~0) .cse2 (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|) .cse3)) (and .cse1 .cse0 .cse2 .cse3 (= 0 ~methAndRunningLastTime~0)) (and .cse1 .cse4 .cse3) (and (and .cse4 .cse3) (= 0 ~systemActive~0)))) [2019-11-15 23:40:33,567 INFO L439 ceAbstractionStarter]: At program point L565-1(lines 560 568) the Hoare annotation is: false [2019-11-15 23:40:33,568 INFO L439 ceAbstractionStarter]: At program point L565-2(lines 560 568) the Hoare annotation is: false [2019-11-15 23:40:33,568 INFO L443 ceAbstractionStarter]: For program point L995(line 995) no Hoare annotation was computed. [2019-11-15 23:40:33,568 INFO L443 ceAbstractionStarter]: For program point L995-1(line 995) no Hoare annotation was computed. [2019-11-15 23:40:33,568 INFO L443 ceAbstractionStarter]: For program point L995-2(line 995) no Hoare annotation was computed. [2019-11-15 23:40:33,568 INFO L443 ceAbstractionStarter]: For program point L468(lines 468 478) no Hoare annotation was computed. [2019-11-15 23:40:33,568 INFO L443 ceAbstractionStarter]: For program point L468-2(lines 468 478) no Hoare annotation was computed. [2019-11-15 23:40:33,568 INFO L443 ceAbstractionStarter]: For program point L468-4(lines 468 478) no Hoare annotation was computed. [2019-11-15 23:40:33,568 INFO L443 ceAbstractionStarter]: For program point L469(lines 469 475) no Hoare annotation was computed. [2019-11-15 23:40:33,568 INFO L443 ceAbstractionStarter]: For program point L469-2(lines 469 475) no Hoare annotation was computed. [2019-11-15 23:40:33,569 INFO L443 ceAbstractionStarter]: For program point L469-4(lines 469 475) no Hoare annotation was computed. [2019-11-15 23:40:33,569 INFO L439 ceAbstractionStarter]: At program point L139(lines 139 145) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (and .cse1 (= 0 ~methaneLevelCritical~0) .cse2 .cse3)) (and .cse1 .cse0 .cse2 .cse3 (= 0 ~methAndRunningLastTime~0)) (and .cse1 .cse4 .cse3) (and (and .cse4 .cse3) (= 0 ~systemActive~0)))) [2019-11-15 23:40:33,569 INFO L439 ceAbstractionStarter]: At program point L106(lines 55 107) the Hoare annotation is: false [2019-11-15 23:40:33,569 INFO L439 ceAbstractionStarter]: At program point L139-1(lines 139 145) the Hoare annotation is: false [2019-11-15 23:40:33,569 INFO L439 ceAbstractionStarter]: At program point L139-2(lines 139 145) the Hoare annotation is: false [2019-11-15 23:40:33,569 INFO L439 ceAbstractionStarter]: At program point L404(lines 400 406) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-11-15 23:40:33,569 INFO L443 ceAbstractionStarter]: For program point L76(lines 76 82) no Hoare annotation was computed. [2019-11-15 23:40:33,570 INFO L439 ceAbstractionStarter]: At program point L76-1(lines 76 82) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 0 ULTIMATE.start_test_~splverifierCounter~0)) (.cse3 (= 0 ~methAndRunningLastTime~0))) (or (and .cse0 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse1) (and (and .cse2 .cse1) .cse3 (= 0 ~systemActive~0)) (and (and .cse0 .cse2 .cse1) .cse3))) [2019-11-15 23:40:33,570 INFO L443 ceAbstractionStarter]: For program point L605(lines 605 611) no Hoare annotation was computed. [2019-11-15 23:40:33,570 INFO L443 ceAbstractionStarter]: For program point L605-1(lines 605 611) no Hoare annotation was computed. [2019-11-15 23:40:33,570 INFO L443 ceAbstractionStarter]: For program point L605-2(lines 605 611) no Hoare annotation was computed. [2019-11-15 23:40:33,570 INFO L443 ceAbstractionStarter]: For program point L605-3(lines 605 611) no Hoare annotation was computed. [2019-11-15 23:40:33,570 INFO L443 ceAbstractionStarter]: For program point L605-4(lines 605 611) no Hoare annotation was computed. [2019-11-15 23:40:33,570 INFO L443 ceAbstractionStarter]: For program point L605-5(lines 605 611) no Hoare annotation was computed. [2019-11-15 23:40:33,570 INFO L443 ceAbstractionStarter]: For program point L540(lines 540 544) no Hoare annotation was computed. [2019-11-15 23:40:33,571 INFO L446 ceAbstractionStarter]: At program point L441(lines 422 444) the Hoare annotation is: true [2019-11-15 23:40:33,571 INFO L439 ceAbstractionStarter]: At program point L243(lines 238 246) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_isPumpRunning_#res| 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse3 (= 0 ~methAndRunningLastTime~0)) (and (and .cse1 .cse2 .cse3) (= 0 ~systemActive~0)))) [2019-11-15 23:40:33,571 INFO L439 ceAbstractionStarter]: At program point L243-1(lines 238 246) the Hoare annotation is: false [2019-11-15 23:40:33,571 INFO L439 ceAbstractionStarter]: At program point L243-2(lines 238 246) the Hoare annotation is: false [2019-11-15 23:40:33,571 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 995) no Hoare annotation was computed. [2019-11-15 23:40:33,571 INFO L439 ceAbstractionStarter]: At program point L508(lines 1 998) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-11-15 23:40:33,571 INFO L443 ceAbstractionStarter]: For program point L311(lines 311 315) no Hoare annotation was computed. [2019-11-15 23:40:33,572 INFO L443 ceAbstractionStarter]: For program point L311-2(lines 311 315) no Hoare annotation was computed. [2019-11-15 23:40:33,572 INFO L443 ceAbstractionStarter]: For program point L311-3(lines 311 315) no Hoare annotation was computed. [2019-11-15 23:40:33,572 INFO L443 ceAbstractionStarter]: For program point L311-5(lines 311 315) no Hoare annotation was computed. [2019-11-15 23:40:33,572 INFO L443 ceAbstractionStarter]: For program point L311-6(lines 311 315) no Hoare annotation was computed. [2019-11-15 23:40:33,572 INFO L443 ceAbstractionStarter]: For program point L311-8(lines 311 315) no Hoare annotation was computed. [2019-11-15 23:40:33,572 INFO L439 ceAbstractionStarter]: At program point L610(lines 601 614) the Hoare annotation is: false [2019-11-15 23:40:33,572 INFO L439 ceAbstractionStarter]: At program point L610-1(lines 601 614) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (= 0 ~methaneLevelCritical~0) .cse1 .cse2 .cse3) (and .cse0 (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= 0 ~methAndRunningLastTime~0)))) [2019-11-15 23:40:33,572 INFO L439 ceAbstractionStarter]: At program point L610-2(lines 601 614) the Hoare annotation is: false [2019-11-15 23:40:33,573 INFO L439 ceAbstractionStarter]: At program point L610-3(lines 601 614) the Hoare annotation is: false [2019-11-15 23:40:33,573 INFO L439 ceAbstractionStarter]: At program point L610-4(lines 601 614) the Hoare annotation is: false [2019-11-15 23:40:33,573 INFO L439 ceAbstractionStarter]: At program point L610-5(lines 601 614) the Hoare annotation is: false [2019-11-15 23:40:33,574 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 23:40:33,575 INFO L439 ceAbstractionStarter]: At program point L317(lines 302 320) the Hoare annotation is: (and (= 1 ~systemActive~0) (<= 1 ~pumpRunning~0) (<= 1 ULTIMATE.start_isLowWaterLevel_~tmp___0~2) (= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|) (not (= 0 ~waterLevel~0)) (<= 1 |ULTIMATE.start_isLowWaterLevel_#res|) (= 0 ULTIMATE.start_isLowWaterLevel_~tmp~4) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-11-15 23:40:33,575 INFO L439 ceAbstractionStarter]: At program point L317-1(lines 302 320) the Hoare annotation is: false [2019-11-15 23:40:33,575 INFO L439 ceAbstractionStarter]: At program point L317-2(lines 302 320) the Hoare annotation is: false [2019-11-15 23:40:33,575 INFO L443 ceAbstractionStarter]: For program point L86(lines 86 101) no Hoare annotation was computed. [2019-11-15 23:40:33,575 INFO L439 ceAbstractionStarter]: At program point L516(lines 511 519) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-11-15 23:40:33,576 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 995) no Hoare annotation was computed. [2019-11-15 23:40:33,576 INFO L443 ceAbstractionStarter]: For program point L552(lines 552 556) no Hoare annotation was computed. [2019-11-15 23:40:33,576 INFO L439 ceAbstractionStarter]: At program point L453(lines 448 455) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-11-15 23:40:33,576 INFO L443 ceAbstractionStarter]: For program point L57(lines 56 105) no Hoare annotation was computed. [2019-11-15 23:40:33,576 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 23:40:33,576 INFO L443 ceAbstractionStarter]: For program point L190(lines 190 207) no Hoare annotation was computed. [2019-11-15 23:40:33,577 INFO L443 ceAbstractionStarter]: For program point L190-1(lines 190 207) no Hoare annotation was computed. [2019-11-15 23:40:33,577 INFO L443 ceAbstractionStarter]: For program point L190-2(lines 190 207) no Hoare annotation was computed. [2019-11-15 23:40:33,577 INFO L443 ceAbstractionStarter]: For program point L58(lines 58 62) no Hoare annotation was computed. [2019-11-15 23:40:33,577 INFO L439 ceAbstractionStarter]: At program point L620(lines 615 623) the Hoare annotation is: (and (= 1 ~systemActive~0) (<= 1 ~pumpRunning~0) (= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|) (not (= 0 ~waterLevel~0)) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-11-15 23:40:33,577 INFO L439 ceAbstractionStarter]: At program point L620-1(lines 615 623) the Hoare annotation is: false [2019-11-15 23:40:33,578 INFO L439 ceAbstractionStarter]: At program point L620-2(lines 615 623) the Hoare annotation is: false [2019-11-15 23:40:33,578 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 995) no Hoare annotation was computed. [2019-11-15 23:40:33,578 INFO L439 ceAbstractionStarter]: At program point L356-2(lines 356 370) the Hoare annotation is: false [2019-11-15 23:40:33,578 INFO L443 ceAbstractionStarter]: For program point L357(line 357) no Hoare annotation was computed. [2019-11-15 23:40:33,578 INFO L443 ceAbstractionStarter]: For program point L325(lines 325 331) no Hoare annotation was computed. [2019-11-15 23:40:33,578 INFO L439 ceAbstractionStarter]: At program point L325-1(lines 325 331) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-11-15 23:40:33,579 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 296) no Hoare annotation was computed. [2019-11-15 23:40:33,579 INFO L443 ceAbstractionStarter]: For program point L292-2(lines 292 296) no Hoare annotation was computed. [2019-11-15 23:40:33,579 INFO L443 ceAbstractionStarter]: For program point L292-3(lines 292 296) no Hoare annotation was computed. [2019-11-15 23:40:33,579 INFO L443 ceAbstractionStarter]: For program point L292-5(lines 292 296) no Hoare annotation was computed. [2019-11-15 23:40:33,579 INFO L443 ceAbstractionStarter]: For program point L94(lines 94 100) no Hoare annotation was computed. [2019-11-15 23:40:33,580 INFO L443 ceAbstractionStarter]: For program point L292-6(lines 292 296) no Hoare annotation was computed. [2019-11-15 23:40:33,580 INFO L439 ceAbstractionStarter]: At program point L94-1(lines 132 138) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse1) (and (and .cse0 .cse2 .cse1) (= 0 ~methAndRunningLastTime~0)) (and (and .cse2 .cse1) (= 0 ~systemActive~0)))) [2019-11-15 23:40:33,580 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 23:40:33,580 INFO L443 ceAbstractionStarter]: For program point L292-8(lines 292 296) no Hoare annotation was computed. [2019-11-15 23:40:33,580 INFO L443 ceAbstractionStarter]: For program point L292-9(lines 292 296) no Hoare annotation was computed. [2019-11-15 23:40:33,580 INFO L443 ceAbstractionStarter]: For program point L292-11(lines 292 296) no Hoare annotation was computed. [2019-11-15 23:40:33,581 INFO L443 ceAbstractionStarter]: For program point L292-12(lines 292 296) no Hoare annotation was computed. [2019-11-15 23:40:33,581 INFO L443 ceAbstractionStarter]: For program point L292-14(lines 292 296) no Hoare annotation was computed. [2019-11-15 23:40:33,581 INFO L443 ceAbstractionStarter]: For program point L292-15(lines 292 296) no Hoare annotation was computed. [2019-11-15 23:40:33,581 INFO L443 ceAbstractionStarter]: For program point L292-17(lines 292 296) no Hoare annotation was computed. [2019-11-15 23:40:33,581 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 202) no Hoare annotation was computed. [2019-11-15 23:40:33,581 INFO L443 ceAbstractionStarter]: For program point L194-1(lines 194 202) no Hoare annotation was computed. [2019-11-15 23:40:33,582 INFO L443 ceAbstractionStarter]: For program point L194-2(lines 194 202) no Hoare annotation was computed. [2019-11-15 23:40:33,582 INFO L443 ceAbstractionStarter]: For program point L360(lines 360 364) no Hoare annotation was computed. [2019-11-15 23:40:33,582 INFO L443 ceAbstractionStarter]: For program point L360-1(lines 132 138) no Hoare annotation was computed. [2019-11-15 23:40:33,582 INFO L443 ceAbstractionStarter]: For program point L164(lines 164 181) no Hoare annotation was computed. [2019-11-15 23:40:33,582 INFO L443 ceAbstractionStarter]: For program point L164-1(lines 164 181) no Hoare annotation was computed. [2019-11-15 23:40:33,583 INFO L443 ceAbstractionStarter]: For program point L164-2(lines 164 181) no Hoare annotation was computed. [2019-11-15 23:40:33,583 INFO L443 ceAbstractionStarter]: For program point L164-3(lines 164 181) no Hoare annotation was computed. [2019-11-15 23:40:33,583 INFO L443 ceAbstractionStarter]: For program point L164-4(lines 164 181) no Hoare annotation was computed. [2019-11-15 23:40:33,583 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 23:40:33,583 INFO L443 ceAbstractionStarter]: For program point L164-5(lines 164 181) no Hoare annotation was computed. [2019-11-15 23:40:33,583 INFO L443 ceAbstractionStarter]: For program point L528(lines 528 532) no Hoare annotation was computed. [2019-11-15 23:40:33,584 INFO L443 ceAbstractionStarter]: For program point L528-3(lines 528 532) no Hoare annotation was computed. [2019-11-15 23:40:33,584 INFO L443 ceAbstractionStarter]: For program point L528-6(lines 528 532) no Hoare annotation was computed. [2019-11-15 23:40:33,584 INFO L439 ceAbstractionStarter]: At program point L132(lines 131 150) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (= 0 ~methaneLevelCritical~0) .cse1 .cse2) (and (and .cse1 .cse2) (= 0 ~systemActive~0)) (and .cse0 (<= 1 ~pumpRunning~0) (not (= 0 ~waterLevel~0)) .cse2) (and (and .cse0 .cse1 .cse2) (= 0 ~methAndRunningLastTime~0)))) [2019-11-15 23:40:33,584 INFO L443 ceAbstractionStarter]: For program point L132-1(lines 132 138) no Hoare annotation was computed. [2019-11-15 23:40:33,584 INFO L443 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2019-11-15 23:40:33,585 INFO L439 ceAbstractionStarter]: At program point L132-2(lines 131 150) the Hoare annotation is: false [2019-11-15 23:40:33,585 INFO L439 ceAbstractionStarter]: At program point L66-1(lines 66 72) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 0 ULTIMATE.start_test_~splverifierCounter~0)) (.cse3 (= 0 ~methAndRunningLastTime~0))) (or (and (and .cse0 .cse1) (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0)) (and (and .cse2 .cse1) .cse3 (= 0 ~systemActive~0)) (and (and .cse0 .cse2 .cse1) .cse3))) [2019-11-15 23:40:33,585 INFO L439 ceAbstractionStarter]: At program point L132-3(lines 131 150) the Hoare annotation is: false [2019-11-15 23:40:33,585 INFO L439 ceAbstractionStarter]: At program point L298(lines 283 301) the Hoare annotation is: false [2019-11-15 23:40:33,585 INFO L439 ceAbstractionStarter]: At program point L298-1(lines 283 301) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 .cse1 .cse2 .cse3 (= 0 ~methAndRunningLastTime~0)) (and .cse0 (= 0 ~methaneLevelCritical~0) .cse1 .cse2 .cse3) (and (= 0 |ULTIMATE.start_isHighWaterLevel_#res|) .cse0 (= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~1) (not (= 0 ULTIMATE.start_isHighWaterLevel_~tmp~3)) .cse2 .cse3))) [2019-11-15 23:40:33,586 INFO L439 ceAbstractionStarter]: At program point L298-2(lines 283 301) the Hoare annotation is: false [2019-11-15 23:40:33,586 INFO L439 ceAbstractionStarter]: At program point L298-3(lines 283 301) the Hoare annotation is: false [2019-11-15 23:40:33,586 INFO L439 ceAbstractionStarter]: At program point L298-4(lines 283 301) the Hoare annotation is: false [2019-11-15 23:40:33,586 INFO L439 ceAbstractionStarter]: At program point L298-5(lines 283 301) the Hoare annotation is: false [2019-11-15 23:40:33,586 INFO L443 ceAbstractionStarter]: For program point L464(lines 464 481) no Hoare annotation was computed. [2019-11-15 23:40:33,587 INFO L439 ceAbstractionStarter]: At program point L464-1(lines 1 998) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 0 ULTIMATE.start_test_~splverifierCounter~0)) (.cse3 (= 0 ~methAndRunningLastTime~0))) (or (and (and .cse0 .cse1) (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0)) (and (and .cse2 .cse1) .cse3 (= 0 ~systemActive~0)) (and (and .cse0 .cse2 .cse1) .cse3))) [2019-11-15 23:40:33,587 INFO L443 ceAbstractionStarter]: For program point L464-2(lines 464 481) no Hoare annotation was computed. [2019-11-15 23:40:33,587 INFO L439 ceAbstractionStarter]: At program point L464-3(lines 1 998) the Hoare annotation is: false [2019-11-15 23:40:33,587 INFO L443 ceAbstractionStarter]: For program point L464-4(lines 464 481) no Hoare annotation was computed. [2019-11-15 23:40:33,587 INFO L439 ceAbstractionStarter]: At program point L464-5(lines 1 998) the Hoare annotation is: false [2019-11-15 23:40:33,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:40:33 BoogieIcfgContainer [2019-11-15 23:40:33,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:40:33,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:40:33,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:40:33,616 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:40:33,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:40:15" (3/4) ... [2019-11-15 23:40:33,621 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:40:33,643 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-11-15 23:40:33,645 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-11-15 23:40:33,646 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-15 23:40:33,647 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-15 23:40:33,649 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 23:40:33,650 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-15 23:40:33,687 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 <= pumpRunning && (((1 == systemActive && 0 == methaneLevelCritical) && 2 <= waterLevel) && 0 == \result) && 0 == splverifierCounter) || ((((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || ((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive) [2019-11-15 23:40:33,688 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 == systemActive && 1 <= pumpRunning) && 0 == \result) && !(0 == waterLevel)) && 0 == splverifierCounter [2019-11-15 23:40:33,689 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == systemActive && 0 == methaneLevelCritical) && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter) || (((1 == systemActive && !(\result == 0)) && pumpRunning == 0) && 0 == splverifierCounter)) || ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) [2019-11-15 23:40:33,689 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && \result == 0) && pumpRunning == 0) && 0 == splverifierCounter) || ((((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((\result == 0 && pumpRunning == 0) && 0 == splverifierCounter) && 0 == systemActive) [2019-11-15 23:40:33,690 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 == systemActive && 1 <= pumpRunning) && 1 <= tmp___0) && 0 == \result) && !(0 == waterLevel)) && 1 <= \result) && 0 == tmp) && 0 == splverifierCounter [2019-11-15 23:40:33,690 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) || ((((1 == systemActive && 0 == methaneLevelCritical) && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter)) || (((((0 == \result && 1 == systemActive) && 0 == tmp___0) && !(0 == tmp)) && pumpRunning == 0) && 0 == splverifierCounter) [2019-11-15 23:40:33,766 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_27f98e4c-e097-40d2-b88c-c2d077f4af8e/bin/uautomizer/witness.graphml [2019-11-15 23:40:33,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:40:33,767 INFO L168 Benchmark]: Toolchain (without parser) took 19984.77 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 519.6 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -171.1 MB). Peak memory consumption was 348.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:40:33,768 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:40:33,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 856.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:40:33,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.87 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. [2019-11-15 23:40:33,769 INFO L168 Benchmark]: Boogie Preprocessor took 98.77 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. [2019-11-15 23:40:33,769 INFO L168 Benchmark]: RCFGBuilder took 1163.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.4 MB). Peak memory consumption was 71.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:40:33,770 INFO L168 Benchmark]: TraceAbstraction took 17629.27 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 387.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -93.5 MB). Peak memory consumption was 529.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:40:33,770 INFO L168 Benchmark]: Witness Printer took 150.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:40:33,772 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 856.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.87 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. * Boogie Preprocessor took 98.77 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 1163.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.4 MB). Peak memory consumption was 71.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17629.27 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 387.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -93.5 MB). Peak memory consumption was 529.6 MB. Max. memory is 11.5 GB. * Witness Printer took 150.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 995]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 995]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 995]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 325]: Loop Invariant Derived loop invariant: pumpRunning == 0 && 0 == splverifierCounter - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 238]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 356]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 238]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: (((((1 == systemActive && 0 == methaneLevelCritical) && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter) || (((1 == systemActive && !(\result == 0)) && pumpRunning == 0) && 0 == splverifierCounter)) || ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 238]: Loop Invariant Derived loop invariant: ((((1 == systemActive && \result == 0) && pumpRunning == 0) && 0 == splverifierCounter) || ((((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((\result == 0 && pumpRunning == 0) && 0 == splverifierCounter) && 0 == systemActive) - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: (((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) || ((((1 == systemActive && 0 == methaneLevelCritical) && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter)) || (((((0 == \result && 1 == systemActive) && 0 == tmp___0) && !(0 == tmp)) && pumpRunning == 0) && 0 == splverifierCounter) - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 560]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 560]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) || (((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive)) || (((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 448]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 0 == splverifierCounter) && 1 <= pumpRunning) && 2 <= waterLevel) || (((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive)) || (((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 422]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: (((1 == systemActive && 1 <= pumpRunning) && 0 == \result) && !(0 == waterLevel)) && 0 == splverifierCounter - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) || (((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive) - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 560]: Loop Invariant Derived loop invariant: (((1 <= pumpRunning && (((1 == systemActive && 0 == methaneLevelCritical) && 2 <= waterLevel) && 0 == \result) && 0 == splverifierCounter) || ((((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || ((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive) - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: (((1 <= pumpRunning && ((1 == systemActive && 0 == methaneLevelCritical) && 2 <= waterLevel) && 0 == splverifierCounter) || ((((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || ((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive) - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: ((((((1 == systemActive && 1 <= pumpRunning) && 1 <= tmp___0) && 0 == \result) && !(0 == waterLevel)) && 1 <= \result) && 0 == tmp) && 0 == splverifierCounter - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 0 == splverifierCounter) && 1 <= pumpRunning) && 2 <= waterLevel) || (((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive)) || (((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive)) || (((1 == systemActive && 1 <= pumpRunning) && !(0 == waterLevel)) && 0 == splverifierCounter)) || (((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 123 locations, 3 error locations. Result: SAFE, OverallTime: 17.5s, OverallIterations: 14, TraceHistogramMax: 2, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.7s, HoareTripleCheckerStatistics: 1427 SDtfs, 1814 SDslu, 2247 SDs, 0 SdLazy, 258 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 203 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=537occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 2626 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 181 NumberOfFragments, 619 HoareAnnotationTreeSize, 45 FomulaSimplifications, 2016349 FormulaSimplificationTreeSizeReduction, 4.2s HoareSimplificationTime, 45 FomulaSimplificationsInter, 341407 FormulaSimplificationTreeSizeReductionInter, 8.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 620 NumberOfCodeBlocks, 620 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 604 ConstructedInterpolants, 0 QuantifiedInterpolants, 42392 SizeOfPredicates, 5 NumberOfNonLiveVariables, 848 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 113/116 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 correct! Received shutdown request...