./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 96fab9ebc0a7c1449817f0fde656dfd4d62824fd .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 96fab9ebc0a7c1449817f0fde656dfd4d62824fd ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:21:31,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:31,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:31,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:31,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:31,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:31,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:31,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:31,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:31,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:31,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:31,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:31,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:31,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:31,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:31,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:31,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:31,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:31,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:31,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:31,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:31,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:31,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:31,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:31,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:31,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:31,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:31,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:31,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:31,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:31,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:31,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:31,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:31,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:31,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:31,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:31,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:31,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:31,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:31,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:31,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:31,734 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:21:31,744 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:31,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:31,745 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:31,745 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:31,746 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:31,746 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:31,746 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:21:31,746 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:31,746 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:31,746 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:21:31,747 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:21:31,747 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:31,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:31,748 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:31,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:21:31,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:31,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:31,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:31,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:31,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:31,749 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:31,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:31,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:31,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:31,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:31,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:31,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:31,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:31,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:31,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:31,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:31,751 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:21:31,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:21:31,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:31,751 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:31,752 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96fab9ebc0a7c1449817f0fde656dfd4d62824fd [2019-10-22 11:21:31,780 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:31,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:31,800 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:31,801 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:31,802 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:31,802 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2019-10-22 11:21:31,858 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/data/7da735959/d7b4b4fd39d34794a020d69a7c49989e/FLAG0733ea7d2 [2019-10-22 11:21:32,314 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:32,315 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2019-10-22 11:21:32,325 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/data/7da735959/d7b4b4fd39d34794a020d69a7c49989e/FLAG0733ea7d2 [2019-10-22 11:21:32,339 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/data/7da735959/d7b4b4fd39d34794a020d69a7c49989e [2019-10-22 11:21:32,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:32,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:32,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:32,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:32,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:32,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:32" (1/1) ... [2019-10-22 11:21:32,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c7e792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:32, skipping insertion in model container [2019-10-22 11:21:32,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:32" (1/1) ... [2019-10-22 11:21:32,360 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:32,415 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:32,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:32,858 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:32,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:32,984 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:32,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:32 WrapperNode [2019-10-22 11:21:32,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:32,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:32,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:32,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:32,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:32" (1/1) ... [2019-10-22 11:21:33,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:32" (1/1) ... [2019-10-22 11:21:33,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:33,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:33,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:33,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:33,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:32" (1/1) ... [2019-10-22 11:21:33,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:32" (1/1) ... [2019-10-22 11:21:33,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:32" (1/1) ... [2019-10-22 11:21:33,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:32" (1/1) ... [2019-10-22 11:21:33,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:32" (1/1) ... [2019-10-22 11:21:33,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:32" (1/1) ... [2019-10-22 11:21:33,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:32" (1/1) ... [2019-10-22 11:21:33,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:33,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:33,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:33,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:33,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:33,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:21:33,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:33,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:34,045 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:34,045 INFO L284 CfgBuilder]: Removed 158 assume(true) statements. [2019-10-22 11:21:34,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:34 BoogieIcfgContainer [2019-10-22 11:21:34,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:34,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:34,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:34,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:34,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:32" (1/3) ... [2019-10-22 11:21:34,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3481d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:34, skipping insertion in model container [2019-10-22 11:21:34,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:32" (2/3) ... [2019-10-22 11:21:34,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3481d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:34, skipping insertion in model container [2019-10-22 11:21:34,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:34" (3/3) ... [2019-10-22 11:21:34,061 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2019-10-22 11:21:34,074 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:34,085 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:21:34,098 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:21:34,132 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:34,132 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:34,133 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:34,133 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:34,133 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:34,133 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:34,133 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:34,133 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:34,154 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2019-10-22 11:21:34,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:21:34,164 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:34,165 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:34,167 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:34,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:34,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1800894747, now seen corresponding path program 1 times [2019-10-22 11:21:34,185 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:34,185 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278390751] [2019-10-22 11:21:34,185 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:34,185 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:34,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:34,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:34,436 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278390751] [2019-10-22 11:21:34,436 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:34,437 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:34,437 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393912447] [2019-10-22 11:21:34,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:21:34,442 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:34,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:21:34,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:34,454 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 2 states. [2019-10-22 11:21:34,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:34,482 INFO L93 Difference]: Finished difference Result 228 states and 347 transitions. [2019-10-22 11:21:34,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:21:34,484 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 11:21:34,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:34,498 INFO L225 Difference]: With dead ends: 228 [2019-10-22 11:21:34,500 INFO L226 Difference]: Without dead ends: 113 [2019-10-22 11:21:34,503 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:34,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-22 11:21:34,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-22 11:21:34,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-22 11:21:34,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2019-10-22 11:21:34,549 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2019-10-22 11:21:34,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:34,550 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-10-22 11:21:34,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:21:34,550 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2019-10-22 11:21:34,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:21:34,551 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:34,551 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:34,552 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:34,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:34,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1447315652, now seen corresponding path program 1 times [2019-10-22 11:21:34,552 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:34,552 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542819992] [2019-10-22 11:21:34,552 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:34,553 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:34,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:34,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:34,650 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542819992] [2019-10-22 11:21:34,650 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:34,651 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:21:34,651 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884748250] [2019-10-22 11:21:34,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:34,652 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:34,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:34,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:34,653 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 3 states. [2019-10-22 11:21:34,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:34,664 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2019-10-22 11:21:34,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:34,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-10-22 11:21:34,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:34,666 INFO L225 Difference]: With dead ends: 113 [2019-10-22 11:21:34,666 INFO L226 Difference]: Without dead ends: 47 [2019-10-22 11:21:34,667 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:34,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-22 11:21:34,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-10-22 11:21:34,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-10-22 11:21:34,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2019-10-22 11:21:34,672 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2019-10-22 11:21:34,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:34,673 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2019-10-22 11:21:34,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:34,673 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2019-10-22 11:21:34,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:21:34,674 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:34,674 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:34,674 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:34,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:34,674 INFO L82 PathProgramCache]: Analyzing trace with hash -230586389, now seen corresponding path program 1 times [2019-10-22 11:21:34,674 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:34,675 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141441950] [2019-10-22 11:21:34,675 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:34,675 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:34,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:34,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:34,755 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141441950] [2019-10-22 11:21:34,755 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:34,755 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:21:34,755 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249988155] [2019-10-22 11:21:34,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:34,756 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:34,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:34,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:34,756 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 5 states. [2019-10-22 11:21:34,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:34,832 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2019-10-22 11:21:34,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:34,835 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-10-22 11:21:34,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:34,836 INFO L225 Difference]: With dead ends: 88 [2019-10-22 11:21:34,836 INFO L226 Difference]: Without dead ends: 47 [2019-10-22 11:21:34,836 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:34,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-22 11:21:34,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-10-22 11:21:34,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-10-22 11:21:34,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2019-10-22 11:21:34,845 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2019-10-22 11:21:34,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:34,846 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2019-10-22 11:21:34,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:34,846 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2019-10-22 11:21:34,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:21:34,847 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:34,847 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:34,847 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:34,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:34,847 INFO L82 PathProgramCache]: Analyzing trace with hash -108421843, now seen corresponding path program 1 times [2019-10-22 11:21:34,847 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:34,848 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118823526] [2019-10-22 11:21:34,848 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:34,848 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:34,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:34,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:34,981 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118823526] [2019-10-22 11:21:34,981 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:34,981 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:34,981 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926900762] [2019-10-22 11:21:34,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:34,982 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:34,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:34,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:34,982 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2019-10-22 11:21:35,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:35,045 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2019-10-22 11:21:35,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:35,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 11:21:35,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:35,046 INFO L225 Difference]: With dead ends: 109 [2019-10-22 11:21:35,046 INFO L226 Difference]: Without dead ends: 68 [2019-10-22 11:21:35,047 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:35,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-10-22 11:21:35,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2019-10-22 11:21:35,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-10-22 11:21:35,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2019-10-22 11:21:35,062 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2019-10-22 11:21:35,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:35,062 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2019-10-22 11:21:35,063 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:35,063 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2019-10-22 11:21:35,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:21:35,063 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:35,063 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] [2019-10-22 11:21:35,064 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:35,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:35,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1619186466, now seen corresponding path program 1 times [2019-10-22 11:21:35,064 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:35,064 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215581523] [2019-10-22 11:21:35,068 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:35,068 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:35,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:35,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:35,177 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215581523] [2019-10-22 11:21:35,178 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:35,178 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:21:35,178 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632860339] [2019-10-22 11:21:35,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:35,179 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:35,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:35,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:35,179 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. Second operand 5 states. [2019-10-22 11:21:35,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:35,259 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2019-10-22 11:21:35,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:35,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 11:21:35,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:35,261 INFO L225 Difference]: With dead ends: 175 [2019-10-22 11:21:35,261 INFO L226 Difference]: Without dead ends: 115 [2019-10-22 11:21:35,261 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:35,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-10-22 11:21:35,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2019-10-22 11:21:35,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-10-22 11:21:35,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2019-10-22 11:21:35,272 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2019-10-22 11:21:35,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:35,272 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2019-10-22 11:21:35,272 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:35,272 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2019-10-22 11:21:35,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:21:35,273 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:35,274 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] [2019-10-22 11:21:35,274 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:35,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:35,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1043324577, now seen corresponding path program 1 times [2019-10-22 11:21:35,275 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:35,275 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543021014] [2019-10-22 11:21:35,275 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:35,275 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:35,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:35,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:35,367 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543021014] [2019-10-22 11:21:35,367 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:35,368 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:21:35,368 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692100295] [2019-10-22 11:21:35,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:35,369 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:35,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:35,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:35,370 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand 8 states. [2019-10-22 11:21:35,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:35,749 INFO L93 Difference]: Finished difference Result 461 states and 653 transitions. [2019-10-22 11:21:35,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-22 11:21:35,751 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2019-10-22 11:21:35,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:35,753 INFO L225 Difference]: With dead ends: 461 [2019-10-22 11:21:35,754 INFO L226 Difference]: Without dead ends: 395 [2019-10-22 11:21:35,754 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2019-10-22 11:21:35,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2019-10-22 11:21:35,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 173. [2019-10-22 11:21:35,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-10-22 11:21:35,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 235 transitions. [2019-10-22 11:21:35,799 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 235 transitions. Word has length 30 [2019-10-22 11:21:35,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:35,799 INFO L462 AbstractCegarLoop]: Abstraction has 173 states and 235 transitions. [2019-10-22 11:21:35,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:35,800 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 235 transitions. [2019-10-22 11:21:35,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-22 11:21:35,805 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:35,806 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] [2019-10-22 11:21:35,806 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:35,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:35,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1625643979, now seen corresponding path program 1 times [2019-10-22 11:21:35,807 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:35,807 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391358661] [2019-10-22 11:21:35,807 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:35,807 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:35,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:35,873 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 11:21:35,873 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391358661] [2019-10-22 11:21:35,874 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:35,874 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:21:35,874 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203435849] [2019-10-22 11:21:35,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:35,875 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:35,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:35,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:35,875 INFO L87 Difference]: Start difference. First operand 173 states and 235 transitions. Second operand 4 states. [2019-10-22 11:21:35,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:35,920 INFO L93 Difference]: Finished difference Result 379 states and 513 transitions. [2019-10-22 11:21:35,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:21:35,921 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2019-10-22 11:21:35,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:35,922 INFO L225 Difference]: With dead ends: 379 [2019-10-22 11:21:35,922 INFO L226 Difference]: Without dead ends: 212 [2019-10-22 11:21:35,923 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:35,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2019-10-22 11:21:35,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 152. [2019-10-22 11:21:35,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-10-22 11:21:35,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 202 transitions. [2019-10-22 11:21:35,946 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 202 transitions. Word has length 50 [2019-10-22 11:21:35,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:35,946 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 202 transitions. [2019-10-22 11:21:35,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:35,947 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 202 transitions. [2019-10-22 11:21:35,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 11:21:35,948 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:35,948 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:35,949 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:35,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:35,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1653055247, now seen corresponding path program 1 times [2019-10-22 11:21:35,949 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:35,949 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897761797] [2019-10-22 11:21:35,949 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:35,950 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:35,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:36,031 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:21:36,031 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897761797] [2019-10-22 11:21:36,031 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:36,032 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:21:36,032 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332560442] [2019-10-22 11:21:36,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:36,034 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:36,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:36,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:36,034 INFO L87 Difference]: Start difference. First operand 152 states and 202 transitions. Second operand 5 states. [2019-10-22 11:21:36,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:36,110 INFO L93 Difference]: Finished difference Result 514 states and 704 transitions. [2019-10-22 11:21:36,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:36,111 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-10-22 11:21:36,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:36,112 INFO L225 Difference]: With dead ends: 514 [2019-10-22 11:21:36,113 INFO L226 Difference]: Without dead ends: 392 [2019-10-22 11:21:36,113 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:36,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-10-22 11:21:36,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 158. [2019-10-22 11:21:36,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-22 11:21:36,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 208 transitions. [2019-10-22 11:21:36,142 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 208 transitions. Word has length 51 [2019-10-22 11:21:36,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:36,142 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 208 transitions. [2019-10-22 11:21:36,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:36,142 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 208 transitions. [2019-10-22 11:21:36,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 11:21:36,143 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:36,144 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:36,144 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:36,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:36,144 INFO L82 PathProgramCache]: Analyzing trace with hash -2046082257, now seen corresponding path program 1 times [2019-10-22 11:21:36,148 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:36,148 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978530835] [2019-10-22 11:21:36,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:36,149 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:36,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:36,214 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:21:36,214 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978530835] [2019-10-22 11:21:36,214 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:36,214 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:21:36,215 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043008012] [2019-10-22 11:21:36,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:36,215 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:36,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:36,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:36,216 INFO L87 Difference]: Start difference. First operand 158 states and 208 transitions. Second operand 5 states. [2019-10-22 11:21:36,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:36,383 INFO L93 Difference]: Finished difference Result 414 states and 551 transitions. [2019-10-22 11:21:36,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:21:36,384 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-10-22 11:21:36,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:36,386 INFO L225 Difference]: With dead ends: 414 [2019-10-22 11:21:36,386 INFO L226 Difference]: Without dead ends: 412 [2019-10-22 11:21:36,387 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:36,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2019-10-22 11:21:36,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 158. [2019-10-22 11:21:36,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-22 11:21:36,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 207 transitions. [2019-10-22 11:21:36,410 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 207 transitions. Word has length 51 [2019-10-22 11:21:36,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:36,411 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 207 transitions. [2019-10-22 11:21:36,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:36,411 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 207 transitions. [2019-10-22 11:21:36,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 11:21:36,412 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:36,412 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:36,413 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:36,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:36,417 INFO L82 PathProgramCache]: Analyzing trace with hash 772811102, now seen corresponding path program 1 times [2019-10-22 11:21:36,418 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:36,418 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134130877] [2019-10-22 11:21:36,418 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:36,418 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:36,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:36,547 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:36,548 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134130877] [2019-10-22 11:21:36,548 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122788217] [2019-10-22 11:21:36,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:36,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:21:36,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:36,746 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:36,746 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:36,784 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:36,786 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [253794495] [2019-10-22 11:21:36,794 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 53 [2019-10-22 11:21:36,842 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:21:36,842 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:21:37,322 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:37,322 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:21:37,327 INFO L168 Benchmark]: Toolchain (without parser) took 4983.79 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 236.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -191.1 MB). Peak memory consumption was 45.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:37,327 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:37,328 INFO L168 Benchmark]: CACSL2BoogieTranslator took 641.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:37,328 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:37,333 INFO L168 Benchmark]: Boogie Preprocessor took 38.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:37,334 INFO L168 Benchmark]: RCFGBuilder took 960.49 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: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:37,334 INFO L168 Benchmark]: TraceAbstraction took 3277.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 100.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -95.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:37,341 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 641.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.43 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 960.49 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: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3277.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 100.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -95.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:21:39,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:39,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:39,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:39,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:39,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:39,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:39,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:39,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:39,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:39,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:39,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:39,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:39,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:39,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:39,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:39,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:39,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:39,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:39,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:39,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:39,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:39,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:39,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:39,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:39,516 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:39,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:39,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:39,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:39,519 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:39,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:39,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:39,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:39,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:39,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:39,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:39,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:39,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:39,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:39,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:39,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:39,526 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:21:39,538 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:39,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:39,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:39,539 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:39,539 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:39,539 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:39,539 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:39,540 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:39,540 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:39,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:39,541 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:39,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:39,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:39,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:39,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:39,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:39,542 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:21:39,542 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:21:39,542 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:39,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:39,542 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:21:39,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:39,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:39,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:39,543 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:39,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:39,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:39,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:39,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:39,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:39,544 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:21:39,544 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:21:39,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:39,544 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:39,544 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96fab9ebc0a7c1449817f0fde656dfd4d62824fd [2019-10-22 11:21:39,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:39,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:39,586 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:39,588 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:39,588 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:39,589 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2019-10-22 11:21:39,636 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/data/6cd9f171c/3c1ef1053a7f470492f7e457acda0483/FLAGeb0e9ec50 [2019-10-22 11:21:40,028 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:40,028 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2019-10-22 11:21:40,038 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/data/6cd9f171c/3c1ef1053a7f470492f7e457acda0483/FLAGeb0e9ec50 [2019-10-22 11:21:40,370 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/data/6cd9f171c/3c1ef1053a7f470492f7e457acda0483 [2019-10-22 11:21:40,373 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:40,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:40,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:40,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:40,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:40,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:40" (1/1) ... [2019-10-22 11:21:40,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4292c50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:40, skipping insertion in model container [2019-10-22 11:21:40,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:40" (1/1) ... [2019-10-22 11:21:40,391 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:40,437 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:40,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:40,824 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:41,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:41,036 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:41,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:41 WrapperNode [2019-10-22 11:21:41,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:41,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:41,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:41,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:41,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:41" (1/1) ... [2019-10-22 11:21:41,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:41" (1/1) ... [2019-10-22 11:21:41,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:41,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:41,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:41,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:41,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:41" (1/1) ... [2019-10-22 11:21:41,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:41" (1/1) ... [2019-10-22 11:21:41,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:41" (1/1) ... [2019-10-22 11:21:41,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:41" (1/1) ... [2019-10-22 11:21:41,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:41" (1/1) ... [2019-10-22 11:21:41,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:41" (1/1) ... [2019-10-22 11:21:41,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:41" (1/1) ... [2019-10-22 11:21:41,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:41,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:41,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:41,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:41,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:21:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:41,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:42,043 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:42,044 INFO L284 CfgBuilder]: Removed 158 assume(true) statements. [2019-10-22 11:21:42,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:42 BoogieIcfgContainer [2019-10-22 11:21:42,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:42,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:42,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:42,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:42,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:40" (1/3) ... [2019-10-22 11:21:42,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4011078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:42, skipping insertion in model container [2019-10-22 11:21:42,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:41" (2/3) ... [2019-10-22 11:21:42,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4011078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:42, skipping insertion in model container [2019-10-22 11:21:42,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:42" (3/3) ... [2019-10-22 11:21:42,055 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2019-10-22 11:21:42,066 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:42,076 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:21:42,086 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:21:42,107 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:42,107 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:42,107 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:42,107 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:42,108 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:42,108 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:42,108 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:42,108 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:42,120 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2019-10-22 11:21:42,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:21:42,127 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:42,127 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:42,129 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:42,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:42,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1800894747, now seen corresponding path program 1 times [2019-10-22 11:21:42,142 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:42,143 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [281101925] [2019-10-22 11:21:42,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:42,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:21:42,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:42,329 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:42,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:42,335 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [281101925] [2019-10-22 11:21:42,336 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:42,336 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:21:42,336 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032107457] [2019-10-22 11:21:42,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:21:42,341 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:42,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:21:42,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:42,356 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 2 states. [2019-10-22 11:21:42,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:42,387 INFO L93 Difference]: Finished difference Result 228 states and 347 transitions. [2019-10-22 11:21:42,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:21:42,388 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 11:21:42,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:42,400 INFO L225 Difference]: With dead ends: 228 [2019-10-22 11:21:42,400 INFO L226 Difference]: Without dead ends: 113 [2019-10-22 11:21:42,404 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:42,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-22 11:21:42,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-22 11:21:42,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-22 11:21:42,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2019-10-22 11:21:42,448 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2019-10-22 11:21:42,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:42,448 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-10-22 11:21:42,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:21:42,449 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2019-10-22 11:21:42,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:21:42,449 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:42,450 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:42,651 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:42,651 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:42,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:42,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1447315652, now seen corresponding path program 1 times [2019-10-22 11:21:42,652 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:42,652 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [939422780] [2019-10-22 11:21:42,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:42,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:42,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:42,836 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:42,844 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [939422780] [2019-10-22 11:21:42,844 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:42,845 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:21:42,845 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798787332] [2019-10-22 11:21:42,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:42,847 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:42,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:42,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:42,848 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 4 states. [2019-10-22 11:21:42,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:42,890 INFO L93 Difference]: Finished difference Result 220 states and 324 transitions. [2019-10-22 11:21:42,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:42,893 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-10-22 11:21:42,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:42,895 INFO L225 Difference]: With dead ends: 220 [2019-10-22 11:21:42,895 INFO L226 Difference]: Without dead ends: 113 [2019-10-22 11:21:42,896 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:42,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-22 11:21:42,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-22 11:21:42,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-22 11:21:42,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 162 transitions. [2019-10-22 11:21:42,920 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 162 transitions. Word has length 17 [2019-10-22 11:21:42,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:42,921 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 162 transitions. [2019-10-22 11:21:42,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:42,921 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 162 transitions. [2019-10-22 11:21:42,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:21:42,924 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:42,925 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:43,126 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:43,127 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:43,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:43,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1742707878, now seen corresponding path program 1 times [2019-10-22 11:21:43,128 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:43,128 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1965077557] [2019-10-22 11:21:43,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:43,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:43,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:43,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:43,301 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:43,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:43,304 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1965077557] [2019-10-22 11:21:43,304 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:43,304 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:21:43,304 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250053362] [2019-10-22 11:21:43,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:43,306 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:43,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:43,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:43,307 INFO L87 Difference]: Start difference. First operand 113 states and 162 transitions. Second operand 3 states. [2019-10-22 11:21:43,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:43,492 INFO L93 Difference]: Finished difference Result 267 states and 381 transitions. [2019-10-22 11:21:43,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:43,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:21:43,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:43,494 INFO L225 Difference]: With dead ends: 267 [2019-10-22 11:21:43,495 INFO L226 Difference]: Without dead ends: 160 [2019-10-22 11:21:43,495 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:43,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-10-22 11:21:43,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2019-10-22 11:21:43,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-10-22 11:21:43,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 213 transitions. [2019-10-22 11:21:43,525 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 213 transitions. Word has length 19 [2019-10-22 11:21:43,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:43,525 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 213 transitions. [2019-10-22 11:21:43,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:43,526 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 213 transitions. [2019-10-22 11:21:43,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:21:43,526 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:43,527 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:43,729 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:43,730 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:43,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:43,730 INFO L82 PathProgramCache]: Analyzing trace with hash 2113271863, now seen corresponding path program 1 times [2019-10-22 11:21:43,731 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:43,731 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1151891900] [2019-10-22 11:21:43,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:43,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:43,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:43,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:43,891 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:43,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:43,898 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1151891900] [2019-10-22 11:21:43,899 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:43,899 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:43,899 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78220532] [2019-10-22 11:21:43,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:43,900 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:43,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:43,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:43,900 INFO L87 Difference]: Start difference. First operand 154 states and 213 transitions. Second operand 5 states. [2019-10-22 11:21:44,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:44,070 INFO L93 Difference]: Finished difference Result 417 states and 561 transitions. [2019-10-22 11:21:44,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:44,071 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-22 11:21:44,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:44,073 INFO L225 Difference]: With dead ends: 417 [2019-10-22 11:21:44,073 INFO L226 Difference]: Without dead ends: 269 [2019-10-22 11:21:44,074 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:44,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2019-10-22 11:21:44,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 172. [2019-10-22 11:21:44,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-10-22 11:21:44,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 231 transitions. [2019-10-22 11:21:44,098 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 231 transitions. Word has length 25 [2019-10-22 11:21:44,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:44,098 INFO L462 AbstractCegarLoop]: Abstraction has 172 states and 231 transitions. [2019-10-22 11:21:44,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:44,099 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 231 transitions. [2019-10-22 11:21:44,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:21:44,099 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:44,099 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:44,302 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:44,302 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:44,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:44,303 INFO L82 PathProgramCache]: Analyzing trace with hash 480815610, now seen corresponding path program 1 times [2019-10-22 11:21:44,303 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:44,303 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [845108558] [2019-10-22 11:21:44,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:44,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:21:44,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:44,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:44,493 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:44,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:44,529 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [845108558] [2019-10-22 11:21:44,529 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:44,529 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-10-22 11:21:44,529 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530523681] [2019-10-22 11:21:44,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:44,530 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:44,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:44,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:44,531 INFO L87 Difference]: Start difference. First operand 172 states and 231 transitions. Second operand 8 states. [2019-10-22 11:21:45,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:45,180 INFO L93 Difference]: Finished difference Result 1198 states and 1624 transitions. [2019-10-22 11:21:45,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-22 11:21:45,181 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-10-22 11:21:45,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:45,184 INFO L225 Difference]: With dead ends: 1198 [2019-10-22 11:21:45,184 INFO L226 Difference]: Without dead ends: 1032 [2019-10-22 11:21:45,186 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-10-22 11:21:45,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2019-10-22 11:21:45,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 415. [2019-10-22 11:21:45,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2019-10-22 11:21:45,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 543 transitions. [2019-10-22 11:21:45,257 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 543 transitions. Word has length 25 [2019-10-22 11:21:45,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:45,257 INFO L462 AbstractCegarLoop]: Abstraction has 415 states and 543 transitions. [2019-10-22 11:21:45,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:45,258 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 543 transitions. [2019-10-22 11:21:45,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-22 11:21:45,259 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:45,260 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:45,462 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:45,463 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:45,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:45,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1856535018, now seen corresponding path program 1 times [2019-10-22 11:21:45,464 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:45,464 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1341163754] [2019-10-22 11:21:45,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:45,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:45,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:45,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:45,639 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:45,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:45,662 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1341163754] [2019-10-22 11:21:45,662 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:45,662 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:21:45,663 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680242480] [2019-10-22 11:21:45,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:45,663 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:45,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:45,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:45,664 INFO L87 Difference]: Start difference. First operand 415 states and 543 transitions. Second operand 6 states. [2019-10-22 11:21:45,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:45,870 INFO L93 Difference]: Finished difference Result 950 states and 1227 transitions. [2019-10-22 11:21:45,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:45,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2019-10-22 11:21:45,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:45,872 INFO L225 Difference]: With dead ends: 950 [2019-10-22 11:21:45,872 INFO L226 Difference]: Without dead ends: 504 [2019-10-22 11:21:45,874 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:45,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2019-10-22 11:21:45,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 336. [2019-10-22 11:21:45,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-10-22 11:21:45,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 436 transitions. [2019-10-22 11:21:45,904 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 436 transitions. Word has length 41 [2019-10-22 11:21:45,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:45,904 INFO L462 AbstractCegarLoop]: Abstraction has 336 states and 436 transitions. [2019-10-22 11:21:45,904 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:45,905 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 436 transitions. [2019-10-22 11:21:45,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-22 11:21:45,906 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:45,907 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:46,107 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:46,108 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:46,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:46,108 INFO L82 PathProgramCache]: Analyzing trace with hash -629209101, now seen corresponding path program 1 times [2019-10-22 11:21:46,108 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:46,108 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1308999257] [2019-10-22 11:21:46,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:46,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:46,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:46,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:46,259 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:46,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:46,265 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1308999257] [2019-10-22 11:21:46,265 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:46,265 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:21:46,265 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555555202] [2019-10-22 11:21:46,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:46,266 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:46,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:46,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:46,266 INFO L87 Difference]: Start difference. First operand 336 states and 436 transitions. Second operand 3 states. [2019-10-22 11:21:46,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:46,283 INFO L93 Difference]: Finished difference Result 336 states and 436 transitions. [2019-10-22 11:21:46,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:46,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-10-22 11:21:46,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:46,285 INFO L225 Difference]: With dead ends: 336 [2019-10-22 11:21:46,285 INFO L226 Difference]: Without dead ends: 152 [2019-10-22 11:21:46,285 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:46,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-10-22 11:21:46,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2019-10-22 11:21:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-10-22 11:21:46,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 202 transitions. [2019-10-22 11:21:46,298 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 202 transitions. Word has length 46 [2019-10-22 11:21:46,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:46,298 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 202 transitions. [2019-10-22 11:21:46,299 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:46,299 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 202 transitions. [2019-10-22 11:21:46,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 11:21:46,300 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:46,300 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:46,500 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:46,501 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:46,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:46,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1653055247, now seen corresponding path program 1 times [2019-10-22 11:21:46,501 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:46,501 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1090760619] [2019-10-22 11:21:46,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:46,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:46,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:46,662 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:21:46,662 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:46,666 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:21:46,666 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1090760619] [2019-10-22 11:21:46,666 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:46,667 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:46,667 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727174616] [2019-10-22 11:21:46,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:46,667 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:46,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:46,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:46,668 INFO L87 Difference]: Start difference. First operand 152 states and 202 transitions. Second operand 5 states. [2019-10-22 11:21:46,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:46,738 INFO L93 Difference]: Finished difference Result 514 states and 704 transitions. [2019-10-22 11:21:46,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:46,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-10-22 11:21:46,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:46,740 INFO L225 Difference]: With dead ends: 514 [2019-10-22 11:21:46,741 INFO L226 Difference]: Without dead ends: 392 [2019-10-22 11:21:46,741 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:46,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-10-22 11:21:46,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 158. [2019-10-22 11:21:46,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-22 11:21:46,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 208 transitions. [2019-10-22 11:21:46,757 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 208 transitions. Word has length 51 [2019-10-22 11:21:46,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:46,758 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 208 transitions. [2019-10-22 11:21:46,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:46,758 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 208 transitions. [2019-10-22 11:21:46,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 11:21:46,758 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:46,759 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:46,959 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:46,959 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:46,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:46,960 INFO L82 PathProgramCache]: Analyzing trace with hash -2046082257, now seen corresponding path program 1 times [2019-10-22 11:21:46,960 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:46,960 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1580206778] [2019-10-22 11:21:46,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:47,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:47,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:47,106 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:21:47,106 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:47,112 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:21:47,112 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1580206778] [2019-10-22 11:21:47,112 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:47,112 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:47,112 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731353835] [2019-10-22 11:21:47,113 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:47,113 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:47,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:47,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:47,115 INFO L87 Difference]: Start difference. First operand 158 states and 208 transitions. Second operand 5 states. [2019-10-22 11:21:47,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:47,295 INFO L93 Difference]: Finished difference Result 414 states and 551 transitions. [2019-10-22 11:21:47,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:21:47,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-10-22 11:21:47,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:47,297 INFO L225 Difference]: With dead ends: 414 [2019-10-22 11:21:47,297 INFO L226 Difference]: Without dead ends: 412 [2019-10-22 11:21:47,298 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:47,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2019-10-22 11:21:47,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 158. [2019-10-22 11:21:47,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-22 11:21:47,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 207 transitions. [2019-10-22 11:21:47,316 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 207 transitions. Word has length 51 [2019-10-22 11:21:47,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:47,316 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 207 transitions. [2019-10-22 11:21:47,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:47,317 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 207 transitions. [2019-10-22 11:21:47,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 11:21:47,317 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:47,318 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:47,518 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:47,518 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:47,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:47,519 INFO L82 PathProgramCache]: Analyzing trace with hash 772811102, now seen corresponding path program 1 times [2019-10-22 11:21:47,519 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:47,519 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1547838679] [2019-10-22 11:21:47,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:47,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-22 11:21:47,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:47,689 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:21:47,690 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:47,752 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:21:47,753 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1547838679] [2019-10-22 11:21:47,753 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401659011] [2019-10-22 11:21:47,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:47,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:21:47,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:47,919 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:21:47,920 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:47,929 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:21:47,929 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:21:47,929 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5] total 10 [2019-10-22 11:21:47,929 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729202894] [2019-10-22 11:21:47,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-22 11:21:47,930 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:47,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-22 11:21:47,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:21:47,930 INFO L87 Difference]: Start difference. First operand 158 states and 207 transitions. Second operand 11 states. [2019-10-22 11:21:48,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:48,857 INFO L93 Difference]: Finished difference Result 1049 states and 1407 transitions. [2019-10-22 11:21:48,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-22 11:21:48,857 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2019-10-22 11:21:48,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:48,861 INFO L225 Difference]: With dead ends: 1049 [2019-10-22 11:21:48,861 INFO L226 Difference]: Without dead ends: 921 [2019-10-22 11:21:48,862 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2019-10-22 11:21:48,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2019-10-22 11:21:48,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 289. [2019-10-22 11:21:48,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2019-10-22 11:21:48,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 386 transitions. [2019-10-22 11:21:48,894 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 386 transitions. Word has length 52 [2019-10-22 11:21:48,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:48,894 INFO L462 AbstractCegarLoop]: Abstraction has 289 states and 386 transitions. [2019-10-22 11:21:48,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-22 11:21:48,895 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 386 transitions. [2019-10-22 11:21:48,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-22 11:21:48,896 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:48,896 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-22 11:21:49,297 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:49,297 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:49,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:49,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1104899688, now seen corresponding path program 2 times [2019-10-22 11:21:49,297 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:49,297 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1578280651] [2019-10-22 11:21:49,297 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:51,093 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 11:21:51,094 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 11:21:51,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:21:51,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:51,156 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:21:51,179 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:21:51,179 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:51,224 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:21:51,224 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1578280651] [2019-10-22 11:21:51,224 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:51,224 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-10-22 11:21:51,225 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602595463] [2019-10-22 11:21:51,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:21:51,226 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:51,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:21:51,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:51,226 INFO L87 Difference]: Start difference. First operand 289 states and 386 transitions. Second operand 9 states. [2019-10-22 11:21:52,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:52,141 INFO L93 Difference]: Finished difference Result 1184 states and 1591 transitions. [2019-10-22 11:21:52,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-22 11:21:52,142 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 73 [2019-10-22 11:21:52,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:52,145 INFO L225 Difference]: With dead ends: 1184 [2019-10-22 11:21:52,145 INFO L226 Difference]: Without dead ends: 845 [2019-10-22 11:21:52,146 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2019-10-22 11:21:52,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2019-10-22 11:21:52,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 332. [2019-10-22 11:21:52,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2019-10-22 11:21:52,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 440 transitions. [2019-10-22 11:21:52,194 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 440 transitions. Word has length 73 [2019-10-22 11:21:52,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:52,195 INFO L462 AbstractCegarLoop]: Abstraction has 332 states and 440 transitions. [2019-10-22 11:21:52,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:21:52,195 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 440 transitions. [2019-10-22 11:21:52,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-22 11:21:52,196 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:52,196 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-22 11:21:52,396 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:52,397 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:52,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:52,397 INFO L82 PathProgramCache]: Analyzing trace with hash -830140074, now seen corresponding path program 1 times [2019-10-22 11:21:52,397 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:52,398 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2078124165] [2019-10-22 11:21:52,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:52,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:21:52,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:52,599 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 11:21:52,599 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:52,637 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 11:21:52,639 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2078124165] [2019-10-22 11:21:52,640 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:52,640 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2019-10-22 11:21:52,640 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128509812] [2019-10-22 11:21:52,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:21:52,640 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:52,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:21:52,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:52,641 INFO L87 Difference]: Start difference. First operand 332 states and 440 transitions. Second operand 9 states. [2019-10-22 11:21:52,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:52,747 INFO L93 Difference]: Finished difference Result 499 states and 655 transitions. [2019-10-22 11:21:52,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:52,748 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 73 [2019-10-22 11:21:52,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:52,748 INFO L225 Difference]: With dead ends: 499 [2019-10-22 11:21:52,748 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:21:52,749 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:21:52,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:21:52,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:21:52,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:21:52,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:21:52,750 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2019-10-22 11:21:52,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:52,750 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:21:52,750 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:21:52,750 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:21:52,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:21:52,950 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:52,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:21:53,110 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 46 [2019-10-22 11:21:53,330 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 101 [2019-10-22 11:21:53,584 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 124 [2019-10-22 11:21:54,175 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 27 [2019-10-22 11:21:54,295 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 27 [2019-10-22 11:21:54,680 WARN L191 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 35 [2019-10-22 11:21:55,096 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 35 [2019-10-22 11:21:55,561 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 40 [2019-10-22 11:21:56,046 WARN L191 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 34 [2019-10-22 11:21:56,257 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 29 [2019-10-22 11:21:56,510 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 35 [2019-10-22 11:21:56,764 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 34 [2019-10-22 11:21:56,815 INFO L443 ceAbstractionStarter]: For program point L861(lines 861 865) no Hoare annotation was computed. [2019-10-22 11:21:56,815 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 543) no Hoare annotation was computed. [2019-10-22 11:21:56,815 INFO L443 ceAbstractionStarter]: For program point L861-2(lines 861 865) no Hoare annotation was computed. [2019-10-22 11:21:56,815 INFO L443 ceAbstractionStarter]: For program point L861-3(lines 861 865) no Hoare annotation was computed. [2019-10-22 11:21:56,816 INFO L443 ceAbstractionStarter]: For program point L861-5(lines 861 865) no Hoare annotation was computed. [2019-10-22 11:21:56,816 INFO L439 ceAbstractionStarter]: At program point L663(lines 658 666) the Hoare annotation is: (let ((.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 (and (= (_ bv0 32) ~pumpRunning~0) .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|))) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse1 .cse2 .cse0))) [2019-10-22 11:21:56,816 INFO L443 ceAbstractionStarter]: For program point L861-6(lines 861 865) no Hoare annotation was computed. [2019-10-22 11:21:56,816 INFO L439 ceAbstractionStarter]: At program point L663-1(lines 658 666) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:21:56,816 INFO L443 ceAbstractionStarter]: For program point L861-8(lines 861 865) no Hoare annotation was computed. [2019-10-22 11:21:56,816 INFO L439 ceAbstractionStarter]: At program point L663-2(lines 658 666) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:21:56,816 INFO L443 ceAbstractionStarter]: For program point L861-9(lines 861 865) no Hoare annotation was computed. [2019-10-22 11:21:56,816 INFO L439 ceAbstractionStarter]: At program point L498(lines 494 500) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:56,817 INFO L443 ceAbstractionStarter]: For program point L861-11(lines 861 865) no Hoare annotation was computed. [2019-10-22 11:21:56,818 INFO L443 ceAbstractionStarter]: For program point L861-12(lines 861 865) no Hoare annotation was computed. [2019-10-22 11:21:56,818 INFO L443 ceAbstractionStarter]: For program point L861-14(lines 861 865) no Hoare annotation was computed. [2019-10-22 11:21:56,818 INFO L443 ceAbstractionStarter]: For program point L861-15(lines 861 865) no Hoare annotation was computed. [2019-10-22 11:21:56,819 INFO L443 ceAbstractionStarter]: For program point L861-17(lines 861 865) no Hoare annotation was computed. [2019-10-22 11:21:56,819 INFO L443 ceAbstractionStarter]: For program point L763(lines 763 771) no Hoare annotation was computed. [2019-10-22 11:21:56,819 INFO L443 ceAbstractionStarter]: For program point L763-1(lines 763 771) no Hoare annotation was computed. [2019-10-22 11:21:56,819 INFO L443 ceAbstractionStarter]: For program point L763-2(lines 763 771) no Hoare annotation was computed. [2019-10-22 11:21:56,819 INFO L443 ceAbstractionStarter]: For program point L929(lines 929 935) no Hoare annotation was computed. [2019-10-22 11:21:56,819 INFO L439 ceAbstractionStarter]: At program point L929-1(lines 929 935) the Hoare annotation is: (let ((.cse1 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 (and .cse1 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse2 .cse3) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3 (_ bv0 32))))) (and .cse0 (and .cse1 (and (and .cse4 .cse3) .cse2))) (and (and .cse4 .cse2 .cse3 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse0))) [2019-10-22 11:21:56,819 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 543) no Hoare annotation was computed. [2019-10-22 11:21:56,819 INFO L446 ceAbstractionStarter]: At program point L534(lines 515 537) the Hoare annotation is: true [2019-10-22 11:21:56,819 INFO L443 ceAbstractionStarter]: For program point L733(lines 733 750) no Hoare annotation was computed. [2019-10-22 11:21:56,819 INFO L443 ceAbstractionStarter]: For program point L733-1(lines 733 750) no Hoare annotation was computed. [2019-10-22 11:21:56,820 INFO L443 ceAbstractionStarter]: For program point L733-2(lines 733 750) no Hoare annotation was computed. [2019-10-22 11:21:56,820 INFO L443 ceAbstractionStarter]: For program point L733-3(lines 733 750) no Hoare annotation was computed. [2019-10-22 11:21:56,820 INFO L443 ceAbstractionStarter]: For program point L733-4(lines 733 750) no Hoare annotation was computed. [2019-10-22 11:21:56,820 INFO L443 ceAbstractionStarter]: For program point L733-5(lines 733 750) no Hoare annotation was computed. [2019-10-22 11:21:56,820 INFO L439 ceAbstractionStarter]: At program point L701(lines 700 719) the Hoare annotation is: (let ((.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse4 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 (and .cse1 .cse2 .cse3 .cse4)) (and (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (and (and .cse1 .cse3) .cse2)) .cse0) (and (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse2 .cse3 .cse4 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3 (_ bv0 32)))) .cse0))) [2019-10-22 11:21:56,820 INFO L443 ceAbstractionStarter]: For program point L701-1(lines 701 707) no Hoare annotation was computed. [2019-10-22 11:21:56,820 INFO L439 ceAbstractionStarter]: At program point L701-2(lines 700 719) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:56,820 INFO L439 ceAbstractionStarter]: At program point L701-3(lines 700 719) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:21:56,820 INFO L439 ceAbstractionStarter]: At program point L867(lines 852 870) the Hoare annotation is: false [2019-10-22 11:21:56,821 INFO L439 ceAbstractionStarter]: At program point L867-1(lines 852 870) the Hoare annotation is: (let ((.cse3 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse3) (and .cse3 (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (and .cse0 .cse1 .cse2))))) [2019-10-22 11:21:56,821 INFO L439 ceAbstractionStarter]: At program point L867-2(lines 852 870) the Hoare annotation is: false [2019-10-22 11:21:56,821 INFO L439 ceAbstractionStarter]: At program point L867-3(lines 852 870) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:56,821 INFO L439 ceAbstractionStarter]: At program point L867-4(lines 852 870) the Hoare annotation is: false [2019-10-22 11:21:56,821 INFO L439 ceAbstractionStarter]: At program point L867-5(lines 852 870) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:21:56,821 INFO L439 ceAbstractionStarter]: At program point L570(lines 1 964) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:56,821 INFO L443 ceAbstractionStarter]: For program point L737(lines 737 745) no Hoare annotation was computed. [2019-10-22 11:21:56,821 INFO L443 ceAbstractionStarter]: For program point L737-1(lines 737 745) no Hoare annotation was computed. [2019-10-22 11:21:56,821 INFO L443 ceAbstractionStarter]: For program point L671(lines 671 677) no Hoare annotation was computed. [2019-10-22 11:21:56,821 INFO L443 ceAbstractionStarter]: For program point L737-2(lines 737 745) no Hoare annotation was computed. [2019-10-22 11:21:56,821 INFO L443 ceAbstractionStarter]: For program point L671-1(lines 671 677) no Hoare annotation was computed. [2019-10-22 11:21:56,822 INFO L443 ceAbstractionStarter]: For program point L737-3(lines 737 745) no Hoare annotation was computed. [2019-10-22 11:21:56,822 INFO L443 ceAbstractionStarter]: For program point L671-2(lines 671 677) no Hoare annotation was computed. [2019-10-22 11:21:56,822 INFO L443 ceAbstractionStarter]: For program point L737-4(lines 737 745) no Hoare annotation was computed. [2019-10-22 11:21:56,822 INFO L443 ceAbstractionStarter]: For program point L671-3(lines 671 677) no Hoare annotation was computed. [2019-10-22 11:21:56,822 INFO L443 ceAbstractionStarter]: For program point L737-5(lines 737 745) no Hoare annotation was computed. [2019-10-22 11:21:56,822 INFO L443 ceAbstractionStarter]: For program point L671-4(lines 671 677) no Hoare annotation was computed. [2019-10-22 11:21:56,822 INFO L443 ceAbstractionStarter]: For program point L671-5(lines 671 677) no Hoare annotation was computed. [2019-10-22 11:21:56,822 INFO L443 ceAbstractionStarter]: For program point L606(lines 606 610) no Hoare annotation was computed. [2019-10-22 11:21:56,822 INFO L443 ceAbstractionStarter]: For program point L939(lines 939 952) no Hoare annotation was computed. [2019-10-22 11:21:56,822 INFO L439 ceAbstractionStarter]: At program point L708(lines 708 714) the Hoare annotation is: (let ((.cse4 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse1 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3 (_ bv0 32))) (and (and .cse2 .cse3) .cse4)) (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) .cse2 .cse4 .cse3 .cse1)))) (and (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (and .cse4 .cse3)) .cse0))) [2019-10-22 11:21:56,822 INFO L439 ceAbstractionStarter]: At program point L708-1(lines 708 714) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:56,823 INFO L439 ceAbstractionStarter]: At program point L708-2(lines 708 714) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:21:56,823 INFO L443 ceAbstractionStarter]: For program point L543(line 543) no Hoare annotation was computed. [2019-10-22 11:21:56,823 INFO L443 ceAbstractionStarter]: For program point L543-1(line 543) no Hoare annotation was computed. [2019-10-22 11:21:56,823 INFO L443 ceAbstractionStarter]: For program point L543-2(line 543) no Hoare annotation was computed. [2019-10-22 11:21:56,823 INFO L439 ceAbstractionStarter]: At program point L676(lines 667 680) the Hoare annotation is: false [2019-10-22 11:21:56,823 INFO L439 ceAbstractionStarter]: At program point L676-1(lines 667 680) the Hoare annotation is: (let ((.cse3 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse0 .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse3) (and .cse3 (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (and .cse0 .cse1 .cse2))))) [2019-10-22 11:21:56,823 INFO L439 ceAbstractionStarter]: At program point L676-2(lines 667 680) the Hoare annotation is: false [2019-10-22 11:21:56,823 INFO L439 ceAbstractionStarter]: At program point L676-3(lines 667 680) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:56,823 INFO L439 ceAbstractionStarter]: At program point L676-4(lines 667 680) the Hoare annotation is: false [2019-10-22 11:21:56,823 INFO L439 ceAbstractionStarter]: At program point L676-5(lines 667 680) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:21:56,824 INFO L439 ceAbstractionStarter]: At program point L578(lines 573 581) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:56,824 INFO L439 ceAbstractionStarter]: At program point L447-2(lines 447 461) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:21:56,824 INFO L443 ceAbstractionStarter]: For program point L910(lines 909 956) no Hoare annotation was computed. [2019-10-22 11:21:56,824 INFO L443 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2019-10-22 11:21:56,824 INFO L443 ceAbstractionStarter]: For program point L911(lines 911 915) no Hoare annotation was computed. [2019-10-22 11:21:56,824 INFO L439 ceAbstractionStarter]: At program point L812(lines 807 815) the Hoare annotation is: false [2019-10-22 11:21:56,824 INFO L439 ceAbstractionStarter]: At program point L812-1(lines 807 815) the Hoare annotation is: false [2019-10-22 11:21:56,824 INFO L439 ceAbstractionStarter]: At program point L812-2(lines 807 815) the Hoare annotation is: false [2019-10-22 11:21:56,824 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:21:56,824 INFO L443 ceAbstractionStarter]: For program point L417(lines 417 430) no Hoare annotation was computed. [2019-10-22 11:21:56,824 INFO L439 ceAbstractionStarter]: At program point L417-1(lines 1 964) the Hoare annotation is: (let ((.cse2 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse0 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse0 .cse1 .cse2 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3 (_ bv0 32)))) (and .cse2 (and (= (_ bv0 32) ~pumpRunning~0) .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))))) [2019-10-22 11:21:56,845 INFO L443 ceAbstractionStarter]: For program point L417-2(lines 417 430) no Hoare annotation was computed. [2019-10-22 11:21:56,845 INFO L439 ceAbstractionStarter]: At program point L417-3(lines 1 964) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:21:56,845 INFO L443 ceAbstractionStarter]: For program point L417-4(lines 417 430) no Hoare annotation was computed. [2019-10-22 11:21:56,845 INFO L439 ceAbstractionStarter]: At program point L417-5(lines 1 964) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:21:56,845 INFO L443 ceAbstractionStarter]: For program point L880(lines 880 884) no Hoare annotation was computed. [2019-10-22 11:21:56,845 INFO L443 ceAbstractionStarter]: For program point L880-2(lines 880 884) no Hoare annotation was computed. [2019-10-22 11:21:56,846 INFO L443 ceAbstractionStarter]: For program point L880-3(lines 880 884) no Hoare annotation was computed. [2019-10-22 11:21:56,846 INFO L443 ceAbstractionStarter]: For program point L880-5(lines 880 884) no Hoare annotation was computed. [2019-10-22 11:21:56,846 INFO L443 ceAbstractionStarter]: For program point L880-6(lines 880 884) no Hoare annotation was computed. [2019-10-22 11:21:56,846 INFO L443 ceAbstractionStarter]: For program point L880-8(lines 880 884) no Hoare annotation was computed. [2019-10-22 11:21:56,846 INFO L443 ceAbstractionStarter]: For program point L451(lines 451 455) no Hoare annotation was computed. [2019-10-22 11:21:56,846 INFO L443 ceAbstractionStarter]: For program point L451-1(lines 701 707) no Hoare annotation was computed. [2019-10-22 11:21:56,846 INFO L443 ceAbstractionStarter]: For program point L947(lines 947 951) no Hoare annotation was computed. [2019-10-22 11:21:56,847 INFO L439 ceAbstractionStarter]: At program point L947-2(lines 701 707) the Hoare annotation is: (let ((.cse1 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 (and .cse1 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse2 .cse3) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3 (_ bv0 32))))) (and .cse0 (and .cse1 (and (and .cse4 .cse3) .cse2))) (and (and .cse4 .cse2 .cse3 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse0))) [2019-10-22 11:21:56,847 INFO L443 ceAbstractionStarter]: For program point L618(lines 618 622) no Hoare annotation was computed. [2019-10-22 11:21:56,847 INFO L443 ceAbstractionStarter]: For program point L421(lines 421 427) no Hoare annotation was computed. [2019-10-22 11:21:56,847 INFO L443 ceAbstractionStarter]: For program point L421-2(lines 421 427) no Hoare annotation was computed. [2019-10-22 11:21:56,847 INFO L443 ceAbstractionStarter]: For program point L421-4(lines 421 427) no Hoare annotation was computed. [2019-10-22 11:21:56,847 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:21:56,847 INFO L439 ceAbstractionStarter]: At program point L686(lines 681 689) the Hoare annotation is: (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3 (_ bv0 32)))) [2019-10-22 11:21:56,847 INFO L439 ceAbstractionStarter]: At program point L686-1(lines 681 689) the Hoare annotation is: false [2019-10-22 11:21:56,847 INFO L439 ceAbstractionStarter]: At program point L686-2(lines 681 689) the Hoare annotation is: false [2019-10-22 11:21:56,847 INFO L443 ceAbstractionStarter]: For program point L919(lines 919 925) no Hoare annotation was computed. [2019-10-22 11:21:56,847 INFO L439 ceAbstractionStarter]: At program point L919-1(lines 919 925) the Hoare annotation is: (let ((.cse1 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 (and .cse1 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse2 .cse3) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3 (_ bv0 32))))) (and .cse0 (and .cse1 (and (and .cse4 .cse3) .cse2))) (and (and .cse4 .cse2 .cse3 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse0))) [2019-10-22 11:21:56,848 INFO L439 ceAbstractionStarter]: At program point L886(lines 871 889) the Hoare annotation is: (and (= (bvadd ULTIMATE.start_isLowWaterLevel_~tmp___0~2 (_ bv4294967295 32)) (_ bv0 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd |ULTIMATE.start_isLowWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_isLowWaterLevel_~tmp~8 (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3 (_ bv0 32)))) [2019-10-22 11:21:56,848 INFO L439 ceAbstractionStarter]: At program point L886-1(lines 871 889) the Hoare annotation is: false [2019-10-22 11:21:56,848 INFO L439 ceAbstractionStarter]: At program point L886-2(lines 871 889) the Hoare annotation is: false [2019-10-22 11:21:56,848 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:21:56,848 INFO L443 ceAbstractionStarter]: For program point L525(lines 525 532) no Hoare annotation was computed. [2019-10-22 11:21:56,848 INFO L446 ceAbstractionStarter]: At program point L525-1(lines 525 532) the Hoare annotation is: true [2019-10-22 11:21:56,848 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:21:56,848 INFO L439 ceAbstractionStarter]: At program point L957(lines 908 958) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:56,848 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 543) no Hoare annotation was computed. [2019-10-22 11:21:56,848 INFO L443 ceAbstractionStarter]: For program point L759(lines 759 776) no Hoare annotation was computed. [2019-10-22 11:21:56,848 INFO L443 ceAbstractionStarter]: For program point L759-1(lines 759 776) no Hoare annotation was computed. [2019-10-22 11:21:56,849 INFO L443 ceAbstractionStarter]: For program point L759-2(lines 759 776) no Hoare annotation was computed. [2019-10-22 11:21:56,849 INFO L443 ceAbstractionStarter]: For program point L594(lines 594 598) no Hoare annotation was computed. [2019-10-22 11:21:56,849 INFO L443 ceAbstractionStarter]: For program point L594-3(lines 594 598) no Hoare annotation was computed. [2019-10-22 11:21:56,849 INFO L443 ceAbstractionStarter]: For program point L594-6(lines 594 598) no Hoare annotation was computed. [2019-10-22 11:21:56,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:56 BoogieIcfgContainer [2019-10-22 11:21:56,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:56,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:56,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:56,914 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:56,914 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:42" (3/4) ... [2019-10-22 11:21:56,922 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:21:56,936 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:21:56,937 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2019-10-22 11:21:56,937 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-10-22 11:21:56,938 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:21:56,938 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:21:56,939 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:21:56,964 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:21:56,964 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:21:56,964 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && !(tmp == 0bv32)) || (1bv32 == \result && ((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:21:56,964 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) || (1bv32 == \result && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) [2019-10-22 11:21:56,965 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:21:56,965 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) || (1bv32 == \result && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) [2019-10-22 11:21:56,965 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) || (1bv32 == \result && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) [2019-10-22 11:21:56,965 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && ((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result)) || (((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && 1bv32 == \result) [2019-10-22 11:21:56,966 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:21:56,966 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == \result && ((((!(0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) || (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32))) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) [2019-10-22 11:21:56,966 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:21:56,966 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:21:56,966 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == \result && (((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) [2019-10-22 11:21:56,967 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:21:56,967 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:21:56,967 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:21:56,967 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && !(tmp == 0bv32) [2019-10-22 11:21:56,968 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:21:56,968 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (1bv32 == \result && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2019-10-22 11:21:56,968 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:21:56,969 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && !(tmp == 0bv32) [2019-10-22 11:21:56,969 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:21:56,969 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (1bv32 == \result && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2019-10-22 11:21:56,969 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:21:56,970 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:21:57,011 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a4c70e5c-0e2a-4f61-a757-a665a369ce43/bin/utaipan/witness.graphml [2019-10-22 11:21:57,012 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:57,013 INFO L168 Benchmark]: Toolchain (without parser) took 16638.98 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 378.0 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -180.6 MB). Peak memory consumption was 197.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:57,013 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:57,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -208.3 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:57,013 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:57,014 INFO L168 Benchmark]: Boogie Preprocessor took 38.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:57,014 INFO L168 Benchmark]: RCFGBuilder took 908.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 69.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:57,014 INFO L168 Benchmark]: TraceAbstraction took 14866.58 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 209.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -58.7 MB). Peak memory consumption was 364.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:57,014 INFO L168 Benchmark]: Witness Printer took 97.92 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:57,016 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 662.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -208.3 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.23 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 38.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 908.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 69.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14866.58 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 209.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -58.7 MB). Peak memory consumption was 364.3 MB. Max. memory is 11.5 GB. * Witness Printer took 97.92 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 543]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 543]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 543]: 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: 667]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (1bv32 == \result && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 658]: Loop Invariant Derived loop invariant: (1bv32 == \result && (((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: ((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 919]: Loop Invariant Derived loop invariant: ((1bv32 == \result && ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) || (1bv32 == \result && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 658]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 871]: Loop Invariant Derived loop invariant: ((((((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && !(tmp == 0bv32) - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 871]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 658]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 852]: Loop Invariant Derived loop invariant: (((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 701]: Loop Invariant Derived loop invariant: ((1bv32 == \result && ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) || (1bv32 == \result && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 708]: Loop Invariant Derived loop invariant: (1bv32 == \result && ((((!(0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) || (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32))) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 681]: Loop Invariant Derived loop invariant: (((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && !(tmp == 0bv32) - InvariantResult [Line: 708]: Loop Invariant Derived loop invariant: (((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 852]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 681]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 708]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 852]: Loop Invariant Derived loop invariant: ((((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (1bv32 == \result && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 807]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 681]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 852]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 515]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 807]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 929]: Loop Invariant Derived loop invariant: ((1bv32 == \result && ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) || (1bv32 == \result && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 852]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && !(tmp == 0bv32)) || (1bv32 == \result && ((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 807]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 852]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 871]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 908]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 700]: Loop Invariant Derived loop invariant: ((1bv32 == \result && ((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result)) || (((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && 1bv32 == \result) - InvariantResult [Line: 447]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 700]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 700]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 117 locations, 3 error locations. Result: SAFE, OverallTime: 14.7s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, HoareTripleCheckerStatistics: 1838 SDtfs, 4333 SDslu, 4912 SDs, 0 SdLazy, 1024 SolverSat, 234 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1125 GetRequests, 1024 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=415occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 2521 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 43 PreInvPairs, 149 NumberOfFragments, 1052 HoareAnnotationTreeSize, 43 FomulaSimplifications, 859952 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 43 FomulaSimplificationsInter, 39046 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 541 NumberOfCodeBlocks, 541 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1056 ConstructedInterpolants, 0 QuantifiedInterpolants, 104560 SizeOfPredicates, 46 NumberOfNonLiveVariables, 2743 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 26 InterpolantComputations, 22 PerfectInterpolantSequences, 276/312 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...