./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ab53d3429947c30ff169bac7bc42ee99cd27cfaa ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:22:21,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:22:21,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:22:21,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:22:21,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:22:21,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:22:21,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:22:21,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:22:21,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:22:21,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:22:21,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:22:21,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:22:21,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:22:21,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:22:21,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:22:21,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:22:21,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:22:21,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:22:21,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:22:21,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:22:21,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:22:21,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:22:21,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:22:21,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:22:21,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:22:21,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:22:21,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:22:21,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:22:21,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:22:21,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:22:21,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:22:21,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:22:21,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:22:21,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:22:21,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:22:21,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:22:21,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:22:21,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:22:21,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:22:21,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:22:21,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:22:21,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 23:22:21,925 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:22:21,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:22:21,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:22:21,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:22:21,928 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:22:21,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:22:21,929 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:22:21,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:22:21,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:22:21,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:22:21,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:22:21,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:22:21,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:22:21,931 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:22:21,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:22:21,932 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:22:21,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:22:21,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:22:21,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:22:21,933 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:22:21,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:22:21,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:22:21,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:22:21,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:22:21,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:22:21,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:22:21,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:22:21,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:22:21,935 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:22:21,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab53d3429947c30ff169bac7bc42ee99cd27cfaa [2020-11-29 23:22:22,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:22:22,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:22:22,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:22:22,311 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:22:22,312 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:22:22,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2020-11-29 23:22:22,415 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer/data/495483896/1e5fe19b27644801a21cdb25a8520053/FLAG90e500113 [2020-11-29 23:22:23,059 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:22:23,060 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2020-11-29 23:22:23,071 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer/data/495483896/1e5fe19b27644801a21cdb25a8520053/FLAG90e500113 [2020-11-29 23:22:23,326 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer/data/495483896/1e5fe19b27644801a21cdb25a8520053 [2020-11-29 23:22:23,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:22:23,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:22:23,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:22:23,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:22:23,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:22:23,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:22:23" (1/1) ... [2020-11-29 23:22:23,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b6a4ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:22:23, skipping insertion in model container [2020-11-29 23:22:23,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:22:23" (1/1) ... [2020-11-29 23:22:23,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:22:23,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:22:23,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:22:23,869 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:22:24,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:22:24,049 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:22:24,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:22:24 WrapperNode [2020-11-29 23:22:24,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:22:24,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:22:24,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:22:24,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:22:24,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:22:24" (1/1) ... [2020-11-29 23:22:24,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:22:24" (1/1) ... [2020-11-29 23:22:24,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:22:24,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:22:24,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:22:24,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:22:24,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:22:24" (1/1) ... [2020-11-29 23:22:24,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:22:24" (1/1) ... [2020-11-29 23:22:24,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:22:24" (1/1) ... [2020-11-29 23:22:24,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:22:24" (1/1) ... [2020-11-29 23:22:24,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:22:24" (1/1) ... [2020-11-29 23:22:24,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:22:24" (1/1) ... [2020-11-29 23:22:24,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:22:24" (1/1) ... [2020-11-29 23:22:24,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:22:24,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:22:24,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:22:24,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:22:24,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:22:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:22:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:22:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:22:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:22:24,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:22:25,556 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:22:25,557 INFO L298 CfgBuilder]: Removed 162 assume(true) statements. [2020-11-29 23:22:25,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:22:25 BoogieIcfgContainer [2020-11-29 23:22:25,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:22:25,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:22:25,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:22:25,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:22:25,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:22:23" (1/3) ... [2020-11-29 23:22:25,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bce48e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:22:25, skipping insertion in model container [2020-11-29 23:22:25,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:22:24" (2/3) ... [2020-11-29 23:22:25,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bce48e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:22:25, skipping insertion in model container [2020-11-29 23:22:25,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:22:25" (3/3) ... [2020-11-29 23:22:25,569 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2020-11-29 23:22:25,579 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:22:25,584 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 23:22:25,595 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 23:22:25,633 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:22:25,633 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:22:25,633 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:22:25,633 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:22:25,633 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:22:25,633 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:22:25,634 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:22:25,634 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:22:25,652 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states. [2020-11-29 23:22:25,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 23:22:25,658 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:22:25,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:22:25,659 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:22:25,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:22:25,666 INFO L82 PathProgramCache]: Analyzing trace with hash -948451738, now seen corresponding path program 1 times [2020-11-29 23:22:25,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:22:25,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772577429] [2020-11-29 23:22:25,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:22:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:22:25,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:22:25,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772577429] [2020-11-29 23:22:25,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:22:25,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:22:25,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042666998] [2020-11-29 23:22:25,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 23:22:25,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:22:25,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 23:22:25,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:22:25,957 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 2 states. [2020-11-29 23:22:25,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:22:25,993 INFO L93 Difference]: Finished difference Result 231 states and 350 transitions. [2020-11-29 23:22:25,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:22:25,994 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-29 23:22:25,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:22:26,005 INFO L225 Difference]: With dead ends: 231 [2020-11-29 23:22:26,005 INFO L226 Difference]: Without dead ends: 113 [2020-11-29 23:22:26,009 INFO L677 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 [2020-11-29 23:22:26,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-29 23:22:26,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-11-29 23:22:26,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-29 23:22:26,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2020-11-29 23:22:26,080 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2020-11-29 23:22:26,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:22:26,081 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2020-11-29 23:22:26,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 23:22:26,082 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2020-11-29 23:22:26,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 23:22:26,086 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:22:26,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:22:26,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:22:26,087 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:22:26,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:22:26,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1995208635, now seen corresponding path program 1 times [2020-11-29 23:22:26,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:22:26,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512437805] [2020-11-29 23:22:26,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:22:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:22:26,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:22:26,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512437805] [2020-11-29 23:22:26,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:22:26,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:22:26,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386000861] [2020-11-29 23:22:26,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:22:26,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:22:26,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:22:26,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:22:26,280 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 3 states. [2020-11-29 23:22:26,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:22:26,300 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2020-11-29 23:22:26,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:22:26,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-29 23:22:26,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:22:26,303 INFO L225 Difference]: With dead ends: 113 [2020-11-29 23:22:26,304 INFO L226 Difference]: Without dead ends: 47 [2020-11-29 23:22:26,306 INFO L677 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 [2020-11-29 23:22:26,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-29 23:22:26,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-29 23:22:26,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-29 23:22:26,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2020-11-29 23:22:26,316 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2020-11-29 23:22:26,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:22:26,316 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2020-11-29 23:22:26,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:22:26,317 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2020-11-29 23:22:26,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 23:22:26,319 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:22:26,319 INFO L422 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] [2020-11-29 23:22:26,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:22:26,321 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:22:26,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:22:26,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1404483435, now seen corresponding path program 1 times [2020-11-29 23:22:26,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:22:26,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454062519] [2020-11-29 23:22:26,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:22:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:22:26,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:22:26,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454062519] [2020-11-29 23:22:26,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:22:26,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:22:26,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183615446] [2020-11-29 23:22:26,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:22:26,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:22:26,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:22:26,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:22:26,470 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 3 states. [2020-11-29 23:22:26,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:22:26,489 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2020-11-29 23:22:26,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:22:26,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-29 23:22:26,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:22:26,493 INFO L225 Difference]: With dead ends: 88 [2020-11-29 23:22:26,495 INFO L226 Difference]: Without dead ends: 47 [2020-11-29 23:22:26,496 INFO L677 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 [2020-11-29 23:22:26,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-29 23:22:26,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-29 23:22:26,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-29 23:22:26,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-11-29 23:22:26,504 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2020-11-29 23:22:26,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:22:26,504 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-11-29 23:22:26,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:22:26,505 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-11-29 23:22:26,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 23:22:26,507 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:22:26,507 INFO L422 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] [2020-11-29 23:22:26,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 23:22:26,507 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:22:26,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:22:26,510 INFO L82 PathProgramCache]: Analyzing trace with hash -764351347, now seen corresponding path program 1 times [2020-11-29 23:22:26,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:22:26,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496131621] [2020-11-29 23:22:26,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:22:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:22:26,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:22:26,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496131621] [2020-11-29 23:22:26,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:22:26,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:22:26,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426450206] [2020-11-29 23:22:26,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:22:26,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:22:26,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:22:26,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:22:26,612 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2020-11-29 23:22:26,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:22:26,685 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2020-11-29 23:22:26,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:22:26,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-29 23:22:26,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:22:26,687 INFO L225 Difference]: With dead ends: 109 [2020-11-29 23:22:26,687 INFO L226 Difference]: Without dead ends: 68 [2020-11-29 23:22:26,688 INFO L677 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 [2020-11-29 23:22:26,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-29 23:22:26,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-11-29 23:22:26,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-29 23:22:26,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2020-11-29 23:22:26,698 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2020-11-29 23:22:26,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:22:26,699 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2020-11-29 23:22:26,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:22:26,699 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2020-11-29 23:22:26,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 23:22:26,700 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:22:26,700 INFO L422 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] [2020-11-29 23:22:26,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 23:22:26,701 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:22:26,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:22:26,702 INFO L82 PathProgramCache]: Analyzing trace with hash -805303330, now seen corresponding path program 1 times [2020-11-29 23:22:26,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:22:26,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659873855] [2020-11-29 23:22:26,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:22:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:22:26,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:22:26,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659873855] [2020-11-29 23:22:26,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:22:26,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:22:26,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416488034] [2020-11-29 23:22:26,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:22:26,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:22:26,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:22:26,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:22:26,825 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. Second operand 5 states. [2020-11-29 23:22:26,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:22:26,981 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2020-11-29 23:22:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:22:26,982 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-29 23:22:26,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:22:26,983 INFO L225 Difference]: With dead ends: 175 [2020-11-29 23:22:26,983 INFO L226 Difference]: Without dead ends: 115 [2020-11-29 23:22:26,984 INFO L677 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 [2020-11-29 23:22:26,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-29 23:22:26,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2020-11-29 23:22:26,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-29 23:22:26,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2020-11-29 23:22:26,994 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2020-11-29 23:22:26,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:22:26,995 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2020-11-29 23:22:26,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:22:26,995 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2020-11-29 23:22:27,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 23:22:27,000 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:22:27,000 INFO L422 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] [2020-11-29 23:22:27,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 23:22:27,001 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:22:27,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:22:27,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1857207713, now seen corresponding path program 1 times [2020-11-29 23:22:27,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:22:27,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742623483] [2020-11-29 23:22:27,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:22:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:22:27,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:22:27,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742623483] [2020-11-29 23:22:27,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:22:27,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:22:27,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044288159] [2020-11-29 23:22:27,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 23:22:27,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:22:27,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 23:22:27,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:22:27,104 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand 6 states. [2020-11-29 23:22:27,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:22:27,581 INFO L93 Difference]: Finished difference Result 478 states and 677 transitions. [2020-11-29 23:22:27,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 23:22:27,583 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-11-29 23:22:27,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:22:27,586 INFO L225 Difference]: With dead ends: 478 [2020-11-29 23:22:27,586 INFO L226 Difference]: Without dead ends: 412 [2020-11-29 23:22:27,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-11-29 23:22:27,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-11-29 23:22:27,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 130. [2020-11-29 23:22:27,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-29 23:22:27,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 179 transitions. [2020-11-29 23:22:27,626 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 179 transitions. Word has length 30 [2020-11-29 23:22:27,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:22:27,629 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 179 transitions. [2020-11-29 23:22:27,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 23:22:27,630 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 179 transitions. [2020-11-29 23:22:27,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 23:22:27,633 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:22:27,633 INFO L422 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] [2020-11-29 23:22:27,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 23:22:27,634 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:22:27,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:22:27,635 INFO L82 PathProgramCache]: Analyzing trace with hash -150608481, now seen corresponding path program 1 times [2020-11-29 23:22:27,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:22:27,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274170897] [2020-11-29 23:22:27,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:22:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:22:27,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:22:27,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274170897] [2020-11-29 23:22:27,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:22:27,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:22:27,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786137563] [2020-11-29 23:22:27,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:22:27,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:22:27,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:22:27,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:22:27,710 INFO L87 Difference]: Start difference. First operand 130 states and 179 transitions. Second operand 4 states. [2020-11-29 23:22:27,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:22:27,861 INFO L93 Difference]: Finished difference Result 309 states and 432 transitions. [2020-11-29 23:22:27,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:22:27,862 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-29 23:22:27,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:22:27,863 INFO L225 Difference]: With dead ends: 309 [2020-11-29 23:22:27,863 INFO L226 Difference]: Without dead ends: 185 [2020-11-29 23:22:27,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:22:27,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-11-29 23:22:27,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 165. [2020-11-29 23:22:27,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-11-29 23:22:27,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 220 transitions. [2020-11-29 23:22:27,882 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 220 transitions. Word has length 31 [2020-11-29 23:22:27,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:22:27,883 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 220 transitions. [2020-11-29 23:22:27,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:22:27,883 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 220 transitions. [2020-11-29 23:22:27,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-29 23:22:27,884 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:22:27,885 INFO L422 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] [2020-11-29 23:22:27,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 23:22:27,885 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:22:27,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:22:27,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1612699853, now seen corresponding path program 1 times [2020-11-29 23:22:27,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:22:27,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141150096] [2020-11-29 23:22:27,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:22:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:22:27,959 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 23:22:27,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141150096] [2020-11-29 23:22:27,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:22:27,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:22:27,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862313735] [2020-11-29 23:22:27,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:22:27,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:22:27,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:22:27,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:22:27,963 INFO L87 Difference]: Start difference. First operand 165 states and 220 transitions. Second operand 5 states. [2020-11-29 23:22:28,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:22:28,141 INFO L93 Difference]: Finished difference Result 365 states and 487 transitions. [2020-11-29 23:22:28,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:22:28,142 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2020-11-29 23:22:28,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:22:28,143 INFO L225 Difference]: With dead ends: 365 [2020-11-29 23:22:28,144 INFO L226 Difference]: Without dead ends: 206 [2020-11-29 23:22:28,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:22:28,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-11-29 23:22:28,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 141. [2020-11-29 23:22:28,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-29 23:22:28,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 184 transitions. [2020-11-29 23:22:28,186 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 184 transitions. Word has length 50 [2020-11-29 23:22:28,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:22:28,186 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 184 transitions. [2020-11-29 23:22:28,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:22:28,187 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 184 transitions. [2020-11-29 23:22:28,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-29 23:22:28,189 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:22:28,190 INFO L422 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] [2020-11-29 23:22:28,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 23:22:28,191 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:22:28,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:22:28,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1640111121, now seen corresponding path program 1 times [2020-11-29 23:22:28,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:22:28,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580280426] [2020-11-29 23:22:28,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:22:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:22:28,292 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-29 23:22:28,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580280426] [2020-11-29 23:22:28,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:22:28,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:22:28,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167060616] [2020-11-29 23:22:28,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:22:28,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:22:28,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:22:28,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:22:28,294 INFO L87 Difference]: Start difference. First operand 141 states and 184 transitions. Second operand 5 states. [2020-11-29 23:22:28,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:22:28,452 INFO L93 Difference]: Finished difference Result 467 states and 621 transitions. [2020-11-29 23:22:28,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:22:28,453 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-11-29 23:22:28,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:22:28,455 INFO L225 Difference]: With dead ends: 467 [2020-11-29 23:22:28,456 INFO L226 Difference]: Without dead ends: 356 [2020-11-29 23:22:28,457 INFO L677 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 [2020-11-29 23:22:28,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-11-29 23:22:28,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 144. [2020-11-29 23:22:28,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-29 23:22:28,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 187 transitions. [2020-11-29 23:22:28,478 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 187 transitions. Word has length 51 [2020-11-29 23:22:28,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:22:28,480 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 187 transitions. [2020-11-29 23:22:28,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:22:28,481 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2020-11-29 23:22:28,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-29 23:22:28,482 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:22:28,482 INFO L422 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] [2020-11-29 23:22:28,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 23:22:28,482 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:22:28,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:22:28,483 INFO L82 PathProgramCache]: Analyzing trace with hash -2033138131, now seen corresponding path program 1 times [2020-11-29 23:22:28,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:22:28,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550421186] [2020-11-29 23:22:28,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:22:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:22:28,569 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-29 23:22:28,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550421186] [2020-11-29 23:22:28,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:22:28,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:22:28,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142295352] [2020-11-29 23:22:28,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:22:28,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:22:28,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:22:28,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:22:28,573 INFO L87 Difference]: Start difference. First operand 144 states and 187 transitions. Second operand 5 states. [2020-11-29 23:22:28,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:22:28,731 INFO L93 Difference]: Finished difference Result 368 states and 483 transitions. [2020-11-29 23:22:28,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 23:22:28,735 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-11-29 23:22:28,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:22:28,737 INFO L225 Difference]: With dead ends: 368 [2020-11-29 23:22:28,737 INFO L226 Difference]: Without dead ends: 366 [2020-11-29 23:22:28,738 INFO L677 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 [2020-11-29 23:22:28,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-11-29 23:22:28,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 144. [2020-11-29 23:22:28,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-29 23:22:28,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 186 transitions. [2020-11-29 23:22:28,764 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 186 transitions. Word has length 51 [2020-11-29 23:22:28,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:22:28,764 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 186 transitions. [2020-11-29 23:22:28,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:22:28,764 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 186 transitions. [2020-11-29 23:22:28,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-29 23:22:28,765 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:22:28,765 INFO L422 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] [2020-11-29 23:22:28,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 23:22:28,766 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:22:28,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:22:28,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1174079007, now seen corresponding path program 1 times [2020-11-29 23:22:28,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:22:28,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490066435] [2020-11-29 23:22:28,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:22:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:22:28,868 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:22:28,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490066435] [2020-11-29 23:22:28,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491049882] [2020-11-29 23:22:28,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:22:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:22:29,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:22:29,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:22:29,148 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:22:29,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:22:29,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-11-29 23:22:29,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109060079] [2020-11-29 23:22:29,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 23:22:29,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:22:29,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 23:22:29,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:22:29,152 INFO L87 Difference]: Start difference. First operand 144 states and 186 transitions. Second operand 8 states. [2020-11-29 23:22:29,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:22:29,621 INFO L93 Difference]: Finished difference Result 561 states and 742 transitions. [2020-11-29 23:22:29,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 23:22:29,623 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-11-29 23:22:29,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:22:29,625 INFO L225 Difference]: With dead ends: 561 [2020-11-29 23:22:29,626 INFO L226 Difference]: Without dead ends: 447 [2020-11-29 23:22:29,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-11-29 23:22:29,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-11-29 23:22:29,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 201. [2020-11-29 23:22:29,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-11-29 23:22:29,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 262 transitions. [2020-11-29 23:22:29,660 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 262 transitions. Word has length 52 [2020-11-29 23:22:29,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:22:29,661 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 262 transitions. [2020-11-29 23:22:29,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 23:22:29,661 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 262 transitions. [2020-11-29 23:22:29,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-11-29 23:22:29,662 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:22:29,662 INFO L422 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] [2020-11-29 23:22:29,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-11-29 23:22:29,873 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:22:29,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:22:29,873 INFO L82 PathProgramCache]: Analyzing trace with hash -112639176, now seen corresponding path program 2 times [2020-11-29 23:22:29,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:22:29,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966341196] [2020-11-29 23:22:29,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:22:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:22:30,015 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-29 23:22:30,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966341196] [2020-11-29 23:22:30,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:22:30,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:22:30,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85515278] [2020-11-29 23:22:30,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:22:30,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:22:30,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:22:30,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:22:30,019 INFO L87 Difference]: Start difference. First operand 201 states and 262 transitions. Second operand 5 states. [2020-11-29 23:22:30,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:22:30,249 INFO L93 Difference]: Finished difference Result 584 states and 775 transitions. [2020-11-29 23:22:30,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:22:30,250 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-11-29 23:22:30,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:22:30,253 INFO L225 Difference]: With dead ends: 584 [2020-11-29 23:22:30,253 INFO L226 Difference]: Without dead ends: 412 [2020-11-29 23:22:30,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:22:30,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-11-29 23:22:30,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 274. [2020-11-29 23:22:30,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-11-29 23:22:30,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 355 transitions. [2020-11-29 23:22:30,298 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 355 transitions. Word has length 73 [2020-11-29 23:22:30,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:22:30,298 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 355 transitions. [2020-11-29 23:22:30,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:22:30,298 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 355 transitions. [2020-11-29 23:22:30,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-11-29 23:22:30,299 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:22:30,300 INFO L422 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] [2020-11-29 23:22:30,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 23:22:30,300 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:22:30,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:22:30,301 INFO L82 PathProgramCache]: Analyzing trace with hash 162120438, now seen corresponding path program 1 times [2020-11-29 23:22:30,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:22:30,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701189283] [2020-11-29 23:22:30,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:22:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:22:30,395 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-29 23:22:30,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701189283] [2020-11-29 23:22:30,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:22:30,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:22:30,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959683801] [2020-11-29 23:22:30,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:22:30,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:22:30,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:22:30,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:22:30,397 INFO L87 Difference]: Start difference. First operand 274 states and 355 transitions. Second operand 5 states. [2020-11-29 23:22:30,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:22:30,475 INFO L93 Difference]: Finished difference Result 483 states and 625 transitions. [2020-11-29 23:22:30,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:22:30,476 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-11-29 23:22:30,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:22:30,476 INFO L225 Difference]: With dead ends: 483 [2020-11-29 23:22:30,476 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 23:22:30,477 INFO L677 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 [2020-11-29 23:22:30,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 23:22:30,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 23:22:30,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 23:22:30,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:22:30,478 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2020-11-29 23:22:30,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:22:30,478 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:22:30,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:22:30,478 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:22:30,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:22:30,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 23:22:30,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 23:22:30,755 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 100 [2020-11-29 23:22:30,990 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 100 [2020-11-29 23:22:31,137 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 98 [2020-11-29 23:22:31,532 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 97 [2020-11-29 23:22:32,048 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 17 [2020-11-29 23:22:32,521 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 17 [2020-11-29 23:22:32,830 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 16 [2020-11-29 23:22:32,977 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 25 [2020-11-29 23:22:33,160 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 18 [2020-11-29 23:22:33,301 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 18 [2020-11-29 23:22:33,623 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 9 [2020-11-29 23:22:34,043 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 21 [2020-11-29 23:22:34,072 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 23:22:34,072 INFO L274 CegarLoopResult]: For program point L333(lines 333 350) no Hoare annotation was computed. [2020-11-29 23:22:34,073 INFO L274 CegarLoopResult]: For program point L333-1(lines 333 350) no Hoare annotation was computed. [2020-11-29 23:22:34,073 INFO L274 CegarLoopResult]: For program point L333-2(lines 333 350) no Hoare annotation was computed. [2020-11-29 23:22:34,073 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 23:22:34,073 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 23:22:34,073 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-29 23:22:34,073 INFO L274 CegarLoopResult]: For program point L435(lines 435 439) no Hoare annotation was computed. [2020-11-29 23:22:34,073 INFO L274 CegarLoopResult]: For program point L435-2(lines 435 439) no Hoare annotation was computed. [2020-11-29 23:22:34,073 INFO L274 CegarLoopResult]: For program point L435-3(lines 435 439) no Hoare annotation was computed. [2020-11-29 23:22:34,073 INFO L274 CegarLoopResult]: For program point L435-5(lines 435 439) no Hoare annotation was computed. [2020-11-29 23:22:34,073 INFO L274 CegarLoopResult]: For program point L435-6(lines 435 439) no Hoare annotation was computed. [2020-11-29 23:22:34,073 INFO L274 CegarLoopResult]: For program point L435-8(lines 435 439) no Hoare annotation was computed. [2020-11-29 23:22:34,073 INFO L274 CegarLoopResult]: For program point L435-9(lines 435 439) no Hoare annotation was computed. [2020-11-29 23:22:34,073 INFO L274 CegarLoopResult]: For program point L435-11(lines 435 439) no Hoare annotation was computed. [2020-11-29 23:22:34,074 INFO L274 CegarLoopResult]: For program point L435-12(lines 435 439) no Hoare annotation was computed. [2020-11-29 23:22:34,074 INFO L274 CegarLoopResult]: For program point L435-14(lines 435 439) no Hoare annotation was computed. [2020-11-29 23:22:34,074 INFO L274 CegarLoopResult]: For program point L435-15(lines 435 439) no Hoare annotation was computed. [2020-11-29 23:22:34,074 INFO L274 CegarLoopResult]: For program point L435-17(lines 435 439) no Hoare annotation was computed. [2020-11-29 23:22:34,074 INFO L274 CegarLoopResult]: For program point L337(lines 337 345) no Hoare annotation was computed. [2020-11-29 23:22:34,074 INFO L274 CegarLoopResult]: For program point L337-1(lines 337 345) no Hoare annotation was computed. [2020-11-29 23:22:34,074 INFO L274 CegarLoopResult]: For program point L337-2(lines 337 345) no Hoare annotation was computed. [2020-11-29 23:22:34,074 INFO L270 CegarLoopResult]: At program point L174-2(lines 174 188) the Hoare annotation is: false [2020-11-29 23:22:34,074 INFO L274 CegarLoopResult]: For program point L505(lines 505 516) no Hoare annotation was computed. [2020-11-29 23:22:34,074 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 23:22:34,074 INFO L274 CegarLoopResult]: For program point L307(lines 307 324) no Hoare annotation was computed. [2020-11-29 23:22:34,075 INFO L274 CegarLoopResult]: For program point L307-1(lines 307 324) no Hoare annotation was computed. [2020-11-29 23:22:34,075 INFO L274 CegarLoopResult]: For program point L307-2(lines 307 324) no Hoare annotation was computed. [2020-11-29 23:22:34,075 INFO L274 CegarLoopResult]: For program point L307-3(lines 307 324) no Hoare annotation was computed. [2020-11-29 23:22:34,075 INFO L274 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-11-29 23:22:34,075 INFO L274 CegarLoopResult]: For program point L307-4(lines 307 324) no Hoare annotation was computed. [2020-11-29 23:22:34,075 INFO L274 CegarLoopResult]: For program point L142(lines 142 148) no Hoare annotation was computed. [2020-11-29 23:22:34,075 INFO L274 CegarLoopResult]: For program point L307-5(lines 307 324) no Hoare annotation was computed. [2020-11-29 23:22:34,075 INFO L274 CegarLoopResult]: For program point L142-1(lines 142 148) no Hoare annotation was computed. [2020-11-29 23:22:34,075 INFO L274 CegarLoopResult]: For program point L142-2(lines 142 148) no Hoare annotation was computed. [2020-11-29 23:22:34,075 INFO L274 CegarLoopResult]: For program point L142-3(lines 142 148) no Hoare annotation was computed. [2020-11-29 23:22:34,075 INFO L274 CegarLoopResult]: For program point L142-4(lines 142 148) no Hoare annotation was computed. [2020-11-29 23:22:34,075 INFO L274 CegarLoopResult]: For program point L142-5(lines 142 148) no Hoare annotation was computed. [2020-11-29 23:22:34,076 INFO L270 CegarLoopResult]: At program point L275(lines 274 293) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-11-29 23:22:34,076 INFO L274 CegarLoopResult]: For program point L275-1(lines 275 281) no Hoare annotation was computed. [2020-11-29 23:22:34,076 INFO L270 CegarLoopResult]: At program point L275-2(lines 274 293) the Hoare annotation is: false [2020-11-29 23:22:34,076 INFO L270 CegarLoopResult]: At program point L275-3(lines 274 293) the Hoare annotation is: false [2020-11-29 23:22:34,076 INFO L274 CegarLoopResult]: For program point L77(lines 77 81) no Hoare annotation was computed. [2020-11-29 23:22:34,076 INFO L274 CegarLoopResult]: For program point L573(lines 573 586) no Hoare annotation was computed. [2020-11-29 23:22:34,076 INFO L270 CegarLoopResult]: At program point L573-1(lines 1 955) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1) (and .cse0 (<= 2 ~waterLevel~0) (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) .cse1 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2020-11-29 23:22:34,076 INFO L274 CegarLoopResult]: For program point L573-2(lines 573 586) no Hoare annotation was computed. [2020-11-29 23:22:34,076 INFO L270 CegarLoopResult]: At program point L573-3(lines 1 955) the Hoare annotation is: false [2020-11-29 23:22:34,077 INFO L270 CegarLoopResult]: At program point L441(lines 426 444) the Hoare annotation is: false [2020-11-29 23:22:34,077 INFO L274 CegarLoopResult]: For program point L573-4(lines 573 586) no Hoare annotation was computed. [2020-11-29 23:22:34,077 INFO L270 CegarLoopResult]: At program point L441-1(lines 426 444) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) (not (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0)) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 0) (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2020-11-29 23:22:34,077 INFO L270 CegarLoopResult]: At program point L573-5(lines 1 955) the Hoare annotation is: false [2020-11-29 23:22:34,077 INFO L270 CegarLoopResult]: At program point L441-2(lines 426 444) the Hoare annotation is: false [2020-11-29 23:22:34,077 INFO L270 CegarLoopResult]: At program point L441-3(lines 426 444) the Hoare annotation is: false [2020-11-29 23:22:34,077 INFO L270 CegarLoopResult]: At program point L441-4(lines 426 444) the Hoare annotation is: false [2020-11-29 23:22:34,077 INFO L270 CegarLoopResult]: At program point L441-5(lines 426 444) the Hoare annotation is: false [2020-11-29 23:22:34,077 INFO L274 CegarLoopResult]: For program point L178(lines 178 182) no Hoare annotation was computed. [2020-11-29 23:22:34,077 INFO L274 CegarLoopResult]: For program point L178-1(lines 275 281) no Hoare annotation was computed. [2020-11-29 23:22:34,077 INFO L274 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-11-29 23:22:34,078 INFO L274 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-11-29 23:22:34,078 INFO L274 CegarLoopResult]: For program point L46-2(line 46) no Hoare annotation was computed. [2020-11-29 23:22:34,078 INFO L274 CegarLoopResult]: For program point L476(lines 475 520) no Hoare annotation was computed. [2020-11-29 23:22:34,078 INFO L274 CegarLoopResult]: For program point L311(lines 311 319) no Hoare annotation was computed. [2020-11-29 23:22:34,078 INFO L274 CegarLoopResult]: For program point L311-1(lines 311 319) no Hoare annotation was computed. [2020-11-29 23:22:34,078 INFO L274 CegarLoopResult]: For program point L311-2(lines 311 319) no Hoare annotation was computed. [2020-11-29 23:22:34,078 INFO L274 CegarLoopResult]: For program point L311-3(lines 311 319) no Hoare annotation was computed. [2020-11-29 23:22:34,078 INFO L274 CegarLoopResult]: For program point L311-4(lines 311 319) no Hoare annotation was computed. [2020-11-29 23:22:34,078 INFO L274 CegarLoopResult]: For program point L311-5(lines 311 319) no Hoare annotation was computed. [2020-11-29 23:22:34,078 INFO L274 CegarLoopResult]: For program point L477(lines 477 481) no Hoare annotation was computed. [2020-11-29 23:22:34,078 INFO L270 CegarLoopResult]: At program point L147(lines 138 151) the Hoare annotation is: false [2020-11-29 23:22:34,079 INFO L270 CegarLoopResult]: At program point L147-1(lines 138 151) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2020-11-29 23:22:34,079 INFO L270 CegarLoopResult]: At program point L147-2(lines 138 151) the Hoare annotation is: false [2020-11-29 23:22:34,079 INFO L270 CegarLoopResult]: At program point L147-3(lines 138 151) the Hoare annotation is: false [2020-11-29 23:22:34,079 INFO L270 CegarLoopResult]: At program point L147-4(lines 138 151) the Hoare annotation is: false [2020-11-29 23:22:34,079 INFO L270 CegarLoopResult]: At program point L147-5(lines 138 151) the Hoare annotation is: false [2020-11-29 23:22:34,079 INFO L274 CegarLoopResult]: For program point L577(lines 577 583) no Hoare annotation was computed. [2020-11-29 23:22:34,079 INFO L274 CegarLoopResult]: For program point L511(lines 511 515) no Hoare annotation was computed. [2020-11-29 23:22:34,079 INFO L274 CegarLoopResult]: For program point L577-2(lines 577 583) no Hoare annotation was computed. [2020-11-29 23:22:34,079 INFO L274 CegarLoopResult]: For program point L511-2(lines 275 281) no Hoare annotation was computed. [2020-11-29 23:22:34,079 INFO L274 CegarLoopResult]: For program point L577-4(lines 577 583) no Hoare annotation was computed. [2020-11-29 23:22:34,079 INFO L270 CegarLoopResult]: At program point L282(lines 282 288) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) .cse1))) [2020-11-29 23:22:34,079 INFO L270 CegarLoopResult]: At program point L282-1(lines 282 288) the Hoare annotation is: false [2020-11-29 23:22:34,080 INFO L270 CegarLoopResult]: At program point L282-2(lines 282 288) the Hoare annotation is: false [2020-11-29 23:22:34,080 INFO L274 CegarLoopResult]: For program point L250(lines 250 257) no Hoare annotation was computed. [2020-11-29 23:22:34,080 INFO L277 CegarLoopResult]: At program point L250-1(lines 250 257) the Hoare annotation is: true [2020-11-29 23:22:34,080 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 23:22:34,080 INFO L274 CegarLoopResult]: For program point L485(lines 485 491) no Hoare annotation was computed. [2020-11-29 23:22:34,080 INFO L270 CegarLoopResult]: At program point L485-1(lines 485 491) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1))) [2020-11-29 23:22:34,080 INFO L270 CegarLoopResult]: At program point L386(lines 381 389) the Hoare annotation is: false [2020-11-29 23:22:34,080 INFO L270 CegarLoopResult]: At program point L386-1(lines 381 389) the Hoare annotation is: false [2020-11-29 23:22:34,080 INFO L270 CegarLoopResult]: At program point L386-2(lines 381 389) the Hoare annotation is: false [2020-11-29 23:22:34,080 INFO L274 CegarLoopResult]: For program point L89(lines 89 93) no Hoare annotation was computed. [2020-11-29 23:22:34,081 INFO L270 CegarLoopResult]: At program point L552(lines 1 955) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-11-29 23:22:34,081 INFO L274 CegarLoopResult]: For program point L454(lines 454 458) no Hoare annotation was computed. [2020-11-29 23:22:34,081 INFO L274 CegarLoopResult]: For program point L454-2(lines 454 458) no Hoare annotation was computed. [2020-11-29 23:22:34,081 INFO L274 CegarLoopResult]: For program point L454-3(lines 454 458) no Hoare annotation was computed. [2020-11-29 23:22:34,081 INFO L274 CegarLoopResult]: For program point L454-5(lines 454 458) no Hoare annotation was computed. [2020-11-29 23:22:34,081 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 23:22:34,081 INFO L274 CegarLoopResult]: For program point L454-6(lines 454 458) no Hoare annotation was computed. [2020-11-29 23:22:34,081 INFO L270 CegarLoopResult]: At program point L223(lines 219 225) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-11-29 23:22:34,081 INFO L274 CegarLoopResult]: For program point L454-8(lines 454 458) no Hoare annotation was computed. [2020-11-29 23:22:34,081 INFO L270 CegarLoopResult]: At program point L157(lines 152 160) the Hoare annotation is: (and (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-11-29 23:22:34,081 INFO L270 CegarLoopResult]: At program point L157-1(lines 152 160) the Hoare annotation is: false [2020-11-29 23:22:34,081 INFO L270 CegarLoopResult]: At program point L157-2(lines 152 160) the Hoare annotation is: false [2020-11-29 23:22:34,082 INFO L270 CegarLoopResult]: At program point L521(lines 474 522) the Hoare annotation is: false [2020-11-29 23:22:34,082 INFO L277 CegarLoopResult]: At program point L259(lines 240 262) the Hoare annotation is: true [2020-11-29 23:22:34,082 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 23:22:34,082 INFO L270 CegarLoopResult]: At program point L460(lines 445 463) the Hoare annotation is: (and (= |ULTIMATE.start_isLowWaterLevel_#res| 1) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isLowWaterLevel_~tmp~4 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-11-29 23:22:34,082 INFO L270 CegarLoopResult]: At program point L460-1(lines 445 463) the Hoare annotation is: false [2020-11-29 23:22:34,082 INFO L270 CegarLoopResult]: At program point L460-2(lines 445 463) the Hoare annotation is: false [2020-11-29 23:22:34,082 INFO L270 CegarLoopResult]: At program point L560(lines 555 563) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-11-29 23:22:34,082 INFO L274 CegarLoopResult]: For program point L65(lines 65 69) no Hoare annotation was computed. [2020-11-29 23:22:34,082 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 23:22:34,082 INFO L274 CegarLoopResult]: For program point L65-3(lines 65 69) no Hoare annotation was computed. [2020-11-29 23:22:34,085 INFO L274 CegarLoopResult]: For program point L65-6(lines 65 69) no Hoare annotation was computed. [2020-11-29 23:22:34,085 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 23:22:34,085 INFO L274 CegarLoopResult]: For program point L495(lines 495 501) no Hoare annotation was computed. [2020-11-29 23:22:34,085 INFO L270 CegarLoopResult]: At program point L495-1(lines 495 501) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1))) [2020-11-29 23:22:34,086 INFO L270 CegarLoopResult]: At program point L134(lines 129 137) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2))) [2020-11-29 23:22:34,086 INFO L270 CegarLoopResult]: At program point L134-1(lines 129 137) the Hoare annotation is: false [2020-11-29 23:22:34,086 INFO L270 CegarLoopResult]: At program point L134-2(lines 129 137) the Hoare annotation is: false [2020-11-29 23:22:34,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:22:34 BoogieIcfgContainer [2020-11-29 23:22:34,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:22:34,108 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:22:34,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:22:34,108 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:22:34,109 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:22:25" (3/4) ... [2020-11-29 23:22:34,112 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:22:34,132 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-11-29 23:22:34,133 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-11-29 23:22:34,135 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-29 23:22:34,136 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-29 23:22:34,137 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 23:22:34,138 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:22:34,139 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:22:34,160 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 == systemActive && 2 <= waterLevel) && 1 <= tmp) && splverifierCounter == 0) && 1 <= \result) [2020-11-29 23:22:34,163 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) [2020-11-29 23:22:34,164 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1 == systemActive && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 [2020-11-29 23:22:34,164 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-11-29 23:22:34,165 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1 && tmp___0 == 1) && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 [2020-11-29 23:22:34,166 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && 1 == systemActive) && \result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-11-29 23:22:34,263 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a2c9c4c3-6d37-4904-9443-cbc8f4042efa/bin/uautomizer/witness.graphml [2020-11-29 23:22:34,263 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:22:34,264 INFO L168 Benchmark]: Toolchain (without parser) took 10934.61 ms. Allocated memory was 86.0 MB in the beginning and 163.6 MB in the end (delta: 77.6 MB). Free memory was 52.0 MB in the beginning and 119.7 MB in the end (delta: -67.6 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:22:34,264 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory was 58.9 MB in the beginning and 58.8 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:22:34,265 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.25 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 52.0 MB in the beginning and 78.5 MB in the end (delta: -26.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:22:34,265 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.18 ms. Allocated memory is still 111.1 MB. Free memory was 78.5 MB in the beginning and 74.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:22:34,266 INFO L168 Benchmark]: Boogie Preprocessor took 84.10 ms. Allocated memory is still 111.1 MB. Free memory was 74.5 MB in the beginning and 71.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:22:34,266 INFO L168 Benchmark]: RCFGBuilder took 1312.43 ms. Allocated memory is still 111.1 MB. Free memory was 71.8 MB in the beginning and 58.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:22:34,266 INFO L168 Benchmark]: TraceAbstraction took 8546.27 ms. Allocated memory was 111.1 MB in the beginning and 163.6 MB in the end (delta: 52.4 MB). Free memory was 58.8 MB in the beginning and 130.1 MB in the end (delta: -71.4 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:22:34,267 INFO L168 Benchmark]: Witness Printer took 155.14 ms. Allocated memory is still 163.6 MB. Free memory was 130.1 MB in the beginning and 119.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:22:34,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory was 58.9 MB in the beginning and 58.8 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 720.25 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 52.0 MB in the beginning and 78.5 MB in the end (delta: -26.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.18 ms. Allocated memory is still 111.1 MB. Free memory was 78.5 MB in the beginning and 74.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.10 ms. Allocated memory is still 111.1 MB. Free memory was 74.5 MB in the beginning and 71.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1312.43 ms. Allocated memory is still 111.1 MB. Free memory was 71.8 MB in the beginning and 58.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8546.27 ms. Allocated memory was 111.1 MB in the beginning and 163.6 MB in the end (delta: 52.4 MB). Free memory was 58.8 MB in the beginning and 130.1 MB in the end (delta: -71.4 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. * Witness Printer took 155.14 ms. Allocated memory is still 163.6 MB. Free memory was 130.1 MB in the beginning and 119.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: 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: 495]: Loop Invariant Derived loop invariant: ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: (((((\result == 1 && tmp___0 == 1) && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: ((1 == systemActive && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 485]: Loop Invariant Derived loop invariant: ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && 1 == systemActive) && \result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: (((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: ((((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: (1 == systemActive && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 == systemActive && 2 <= waterLevel) && 1 <= tmp) && splverifierCounter == 0) && 1 <= \result) - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 120 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.8s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1309 SDtfs, 2144 SDslu, 2362 SDs, 0 SdLazy, 386 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 1230 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 42 PreInvPairs, 115 NumberOfFragments, 308 HoareAnnotationTreeSize, 42 FomulaSimplifications, 1402475 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 42 FomulaSimplificationsInter, 71795 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 572 NumberOfCodeBlocks, 572 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 558 ConstructedInterpolants, 0 QuantifiedInterpolants, 43947 SizeOfPredicates, 4 NumberOfNonLiveVariables, 421 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 162/168 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...