./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_eaf4e8b9-a536-4451-b032-f976ffbb0a3a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eaf4e8b9-a536-4451-b032-f976ffbb0a3a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eaf4e8b9-a536-4451-b032-f976ffbb0a3a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eaf4e8b9-a536-4451-b032-f976ffbb0a3a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eaf4e8b9-a536-4451-b032-f976ffbb0a3a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eaf4e8b9-a536-4451-b032-f976ffbb0a3a/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63b48aee14c7431a4aa25f8de4f2dd8129d50ad4 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 03:55:18,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:55:18,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:55:18,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:55:18,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:55:18,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:55:18,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:55:18,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:55:18,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:55:18,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:55:18,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:55:18,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:55:18,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:55:18,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:55:18,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:55:18,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:55:18,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:55:18,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:55:18,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:55:18,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:55:18,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:55:18,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:55:18,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:55:18,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:55:18,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:55:18,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:55:18,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:55:18,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:55:18,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:55:18,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:55:18,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:55:18,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:55:18,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:55:18,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:55:18,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:55:18,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:55:18,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:55:18,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:55:18,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:55:18,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:55:18,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:55:18,969 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eaf4e8b9-a536-4451-b032-f976ffbb0a3a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 03:55:18,981 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:55:18,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:55:18,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:55:18,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:55:18,983 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:55:18,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:55:18,983 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:55:18,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:55:18,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:55:18,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:55:18,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 03:55:18,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:55:18,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 03:55:18,985 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:55:18,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:55:18,985 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:55:18,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 03:55:18,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:55:18,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:55:18,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:55:18,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 03:55:18,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 03:55:18,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:55:18,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:55:18,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 03:55:18,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 03:55:18,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 03:55:18,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 03:55:18,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_eaf4e8b9-a536-4451-b032-f976ffbb0a3a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63b48aee14c7431a4aa25f8de4f2dd8129d50ad4 [2019-11-20 03:55:19,124 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:55:19,134 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:55:19,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:55:19,138 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:55:19,139 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:55:19,139 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eaf4e8b9-a536-4451-b032-f976ffbb0a3a/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2019-11-20 03:55:19,193 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eaf4e8b9-a536-4451-b032-f976ffbb0a3a/bin/uautomizer/data/5722e8df6/38e284bc83424fd78e2667d106c3947a/FLAGa6b2838a5 [2019-11-20 03:55:19,680 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:55:19,680 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eaf4e8b9-a536-4451-b032-f976ffbb0a3a/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2019-11-20 03:55:19,708 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eaf4e8b9-a536-4451-b032-f976ffbb0a3a/bin/uautomizer/data/5722e8df6/38e284bc83424fd78e2667d106c3947a/FLAGa6b2838a5 [2019-11-20 03:55:20,208 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eaf4e8b9-a536-4451-b032-f976ffbb0a3a/bin/uautomizer/data/5722e8df6/38e284bc83424fd78e2667d106c3947a [2019-11-20 03:55:20,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:55:20,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:55:20,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:55:20,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:55:20,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:55:20,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:55:20" (1/1) ... [2019-11-20 03:55:20,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433f4f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:20, skipping insertion in model container [2019-11-20 03:55:20,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:55:20" (1/1) ... [2019-11-20 03:55:20,225 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:55:20,282 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:55:20,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:55:20,620 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:55:20,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:55:20,764 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:55:20,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:20 WrapperNode [2019-11-20 03:55:20,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:55:20,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:55:20,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:55:20,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:55:20,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:20" (1/1) ... [2019-11-20 03:55:20,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:20" (1/1) ... [2019-11-20 03:55:20,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:55:20,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:55:20,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:55:20,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:55:20,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:20" (1/1) ... [2019-11-20 03:55:20,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:20" (1/1) ... [2019-11-20 03:55:20,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:20" (1/1) ... [2019-11-20 03:55:20,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:20" (1/1) ... [2019-11-20 03:55:20,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:20" (1/1) ... [2019-11-20 03:55:20,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:20" (1/1) ... [2019-11-20 03:55:20,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:20" (1/1) ... [2019-11-20 03:55:20,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:55:20,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:55:20,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:55:20,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:55:20,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eaf4e8b9-a536-4451-b032-f976ffbb0a3a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 03:55:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 03:55:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 03:55:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:55:20,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:55:21,680 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:55:21,681 INFO L285 CfgBuilder]: Removed 118 assume(true) statements. [2019-11-20 03:55:21,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:55:21 BoogieIcfgContainer [2019-11-20 03:55:21,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:55:21,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 03:55:21,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 03:55:21,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 03:55:21,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:55:20" (1/3) ... [2019-11-20 03:55:21,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc26e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:55:21, skipping insertion in model container [2019-11-20 03:55:21,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:20" (2/3) ... [2019-11-20 03:55:21,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc26e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:55:21, skipping insertion in model container [2019-11-20 03:55:21,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:55:21" (3/3) ... [2019-11-20 03:55:21,697 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2019-11-20 03:55:21,706 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 03:55:21,713 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-20 03:55:21,723 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-20 03:55:21,746 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 03:55:21,746 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 03:55:21,746 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 03:55:21,746 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:55:21,746 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:55:21,746 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 03:55:21,747 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:55:21,747 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 03:55:21,766 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2019-11-20 03:55:21,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 03:55:21,772 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:55:21,773 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:55:21,773 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:55:21,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:21,777 INFO L82 PathProgramCache]: Analyzing trace with hash 929673937, now seen corresponding path program 1 times [2019-11-20 03:55:21,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:21,784 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807773753] [2019-11-20 03:55:21,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:55:22,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:55:22,041 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807773753] [2019-11-20 03:55:22,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:55:22,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 03:55:22,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788328588] [2019-11-20 03:55:22,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 03:55:22,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:55:22,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 03:55:22,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 03:55:22,064 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2019-11-20 03:55:22,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:55:22,088 INFO L93 Difference]: Finished difference Result 172 states and 257 transitions. [2019-11-20 03:55:22,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 03:55:22,089 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-20 03:55:22,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:55:22,100 INFO L225 Difference]: With dead ends: 172 [2019-11-20 03:55:22,100 INFO L226 Difference]: Without dead ends: 85 [2019-11-20 03:55:22,103 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 03:55:22,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-11-20 03:55:22,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-11-20 03:55:22,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-11-20 03:55:22,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2019-11-20 03:55:22,141 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2019-11-20 03:55:22,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:55:22,142 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2019-11-20 03:55:22,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 03:55:22,142 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2019-11-20 03:55:22,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 03:55:22,143 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:55:22,143 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:55:22,144 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:55:22,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:22,144 INFO L82 PathProgramCache]: Analyzing trace with hash -117082960, now seen corresponding path program 1 times [2019-11-20 03:55:22,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:22,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266442652] [2019-11-20 03:55:22,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:55:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:55:22,239 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266442652] [2019-11-20 03:55:22,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:55:22,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 03:55:22,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678398927] [2019-11-20 03:55:22,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:55:22,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:55:22,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:55:22,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:55:22,242 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2019-11-20 03:55:22,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:55:22,278 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2019-11-20 03:55:22,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:55:22,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-20 03:55:22,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:55:22,279 INFO L225 Difference]: With dead ends: 85 [2019-11-20 03:55:22,279 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 03:55:22,281 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:55:22,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 03:55:22,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-20 03:55:22,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 03:55:22,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2019-11-20 03:55:22,286 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2019-11-20 03:55:22,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:55:22,286 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2019-11-20 03:55:22,286 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:55:22,286 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2019-11-20 03:55:22,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 03:55:22,287 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:55:22,288 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:55:22,288 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:55:22,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:22,288 INFO L82 PathProgramCache]: Analyzing trace with hash 337421565, now seen corresponding path program 1 times [2019-11-20 03:55:22,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:22,289 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927623124] [2019-11-20 03:55:22,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:55:22,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:55:22,387 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927623124] [2019-11-20 03:55:22,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:55:22,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 03:55:22,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274824908] [2019-11-20 03:55:22,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 03:55:22,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:55:22,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 03:55:22,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-20 03:55:22,389 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 6 states. [2019-11-20 03:55:22,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:55:22,540 INFO L93 Difference]: Finished difference Result 128 states and 187 transitions. [2019-11-20 03:55:22,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 03:55:22,540 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-11-20 03:55:22,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:55:22,542 INFO L225 Difference]: With dead ends: 128 [2019-11-20 03:55:22,542 INFO L226 Difference]: Without dead ends: 95 [2019-11-20 03:55:22,543 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-20 03:55:22,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-20 03:55:22,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 58. [2019-11-20 03:55:22,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-11-20 03:55:22,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2019-11-20 03:55:22,554 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 22 [2019-11-20 03:55:22,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:55:22,554 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2019-11-20 03:55:22,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 03:55:22,555 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2019-11-20 03:55:22,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 03:55:22,560 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:55:22,560 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:55:22,560 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:55:22,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:22,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1224569535, now seen corresponding path program 1 times [2019-11-20 03:55:22,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:22,561 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035722824] [2019-11-20 03:55:22,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:55:22,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:55:22,673 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035722824] [2019-11-20 03:55:22,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:55:22,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 03:55:22,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089824819] [2019-11-20 03:55:22,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:55:22,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:55:22,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:55:22,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:55:22,674 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 3 states. [2019-11-20 03:55:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:55:22,708 INFO L93 Difference]: Finished difference Result 131 states and 192 transitions. [2019-11-20 03:55:22,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:55:22,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-20 03:55:22,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:55:22,709 INFO L225 Difference]: With dead ends: 131 [2019-11-20 03:55:22,710 INFO L226 Difference]: Without dead ends: 79 [2019-11-20 03:55:22,710 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:55:22,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-11-20 03:55:22,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2019-11-20 03:55:22,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-20 03:55:22,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 109 transitions. [2019-11-20 03:55:22,721 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 109 transitions. Word has length 23 [2019-11-20 03:55:22,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:55:22,721 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 109 transitions. [2019-11-20 03:55:22,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:55:22,721 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 109 transitions. [2019-11-20 03:55:22,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 03:55:22,722 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:55:22,722 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:55:22,723 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:55:22,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:22,723 INFO L82 PathProgramCache]: Analyzing trace with hash -840484654, now seen corresponding path program 1 times [2019-11-20 03:55:22,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:22,723 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738319080] [2019-11-20 03:55:22,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:55:22,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:55:22,816 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738319080] [2019-11-20 03:55:22,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:55:22,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 03:55:22,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541571151] [2019-11-20 03:55:22,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:55:22,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:55:22,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:55:22,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:55:22,818 INFO L87 Difference]: Start difference. First operand 77 states and 109 transitions. Second operand 5 states. [2019-11-20 03:55:22,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:55:22,935 INFO L93 Difference]: Finished difference Result 371 states and 539 transitions. [2019-11-20 03:55:22,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 03:55:22,936 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-20 03:55:22,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:55:22,939 INFO L225 Difference]: With dead ends: 371 [2019-11-20 03:55:22,939 INFO L226 Difference]: Without dead ends: 300 [2019-11-20 03:55:22,940 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-20 03:55:22,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-11-20 03:55:22,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 140. [2019-11-20 03:55:22,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-20 03:55:22,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 196 transitions. [2019-11-20 03:55:22,962 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 196 transitions. Word has length 25 [2019-11-20 03:55:22,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:55:22,962 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 196 transitions. [2019-11-20 03:55:22,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:55:22,963 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 196 transitions. [2019-11-20 03:55:22,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 03:55:22,964 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:55:22,964 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:55:22,965 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:55:22,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:22,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1044291748, now seen corresponding path program 1 times [2019-11-20 03:55:22,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:22,966 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752658284] [2019-11-20 03:55:22,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:55:23,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:55:23,033 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752658284] [2019-11-20 03:55:23,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:55:23,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 03:55:23,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720187221] [2019-11-20 03:55:23,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:55:23,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:55:23,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:55:23,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:55:23,035 INFO L87 Difference]: Start difference. First operand 140 states and 196 transitions. Second operand 5 states. [2019-11-20 03:55:23,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:55:23,169 INFO L93 Difference]: Finished difference Result 392 states and 553 transitions. [2019-11-20 03:55:23,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 03:55:23,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-20 03:55:23,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:55:23,172 INFO L225 Difference]: With dead ends: 392 [2019-11-20 03:55:23,172 INFO L226 Difference]: Without dead ends: 390 [2019-11-20 03:55:23,173 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-20 03:55:23,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2019-11-20 03:55:23,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 140. [2019-11-20 03:55:23,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-20 03:55:23,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 194 transitions. [2019-11-20 03:55:23,193 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 194 transitions. Word has length 26 [2019-11-20 03:55:23,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:55:23,193 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 194 transitions. [2019-11-20 03:55:23,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:55:23,193 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 194 transitions. [2019-11-20 03:55:23,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 03:55:23,197 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:55:23,197 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:55:23,198 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:55:23,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:23,198 INFO L82 PathProgramCache]: Analyzing trace with hash 895513141, now seen corresponding path program 1 times [2019-11-20 03:55:23,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:23,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630925418] [2019-11-20 03:55:23,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:55:23,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:55:23,280 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630925418] [2019-11-20 03:55:23,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:55:23,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 03:55:23,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156931004] [2019-11-20 03:55:23,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:55:23,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:55:23,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:55:23,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:55:23,282 INFO L87 Difference]: Start difference. First operand 140 states and 194 transitions. Second operand 5 states. [2019-11-20 03:55:23,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:55:23,358 INFO L93 Difference]: Finished difference Result 426 states and 588 transitions. [2019-11-20 03:55:23,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 03:55:23,358 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-11-20 03:55:23,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:55:23,361 INFO L225 Difference]: With dead ends: 426 [2019-11-20 03:55:23,361 INFO L226 Difference]: Without dead ends: 292 [2019-11-20 03:55:23,364 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:55:23,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2019-11-20 03:55:23,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 146. [2019-11-20 03:55:23,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-11-20 03:55:23,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 200 transitions. [2019-11-20 03:55:23,390 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 200 transitions. Word has length 33 [2019-11-20 03:55:23,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:55:23,392 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 200 transitions. [2019-11-20 03:55:23,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:55:23,392 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 200 transitions. [2019-11-20 03:55:23,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 03:55:23,398 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:55:23,398 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:55:23,398 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:55:23,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:23,399 INFO L82 PathProgramCache]: Analyzing trace with hash 308707127, now seen corresponding path program 1 times [2019-11-20 03:55:23,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:23,400 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706433144] [2019-11-20 03:55:23,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:55:23,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:55:23,475 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706433144] [2019-11-20 03:55:23,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:55:23,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 03:55:23,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193391272] [2019-11-20 03:55:23,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 03:55:23,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:55:23,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 03:55:23,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 03:55:23,477 INFO L87 Difference]: Start difference. First operand 146 states and 200 transitions. Second operand 6 states. [2019-11-20 03:55:23,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:55:23,599 INFO L93 Difference]: Finished difference Result 444 states and 606 transitions. [2019-11-20 03:55:23,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 03:55:23,600 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-20 03:55:23,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:55:23,602 INFO L225 Difference]: With dead ends: 444 [2019-11-20 03:55:23,602 INFO L226 Difference]: Without dead ends: 304 [2019-11-20 03:55:23,603 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-11-20 03:55:23,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2019-11-20 03:55:23,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 150. [2019-11-20 03:55:23,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-20 03:55:23,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 204 transitions. [2019-11-20 03:55:23,628 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 204 transitions. Word has length 33 [2019-11-20 03:55:23,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:55:23,629 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 204 transitions. [2019-11-20 03:55:23,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 03:55:23,629 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 204 transitions. [2019-11-20 03:55:23,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 03:55:23,630 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:55:23,630 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:55:23,630 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:55:23,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:23,631 INFO L82 PathProgramCache]: Analyzing trace with hash -971156551, now seen corresponding path program 1 times [2019-11-20 03:55:23,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:23,632 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569247121] [2019-11-20 03:55:23,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:55:23,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:55:23,685 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569247121] [2019-11-20 03:55:23,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:55:23,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 03:55:23,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787147667] [2019-11-20 03:55:23,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:55:23,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:55:23,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:55:23,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:55:23,687 INFO L87 Difference]: Start difference. First operand 150 states and 204 transitions. Second operand 3 states. [2019-11-20 03:55:23,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:55:23,725 INFO L93 Difference]: Finished difference Result 380 states and 516 transitions. [2019-11-20 03:55:23,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:55:23,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-11-20 03:55:23,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:55:23,727 INFO L225 Difference]: With dead ends: 380 [2019-11-20 03:55:23,727 INFO L226 Difference]: Without dead ends: 236 [2019-11-20 03:55:23,728 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:55:23,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-11-20 03:55:23,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2019-11-20 03:55:23,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-11-20 03:55:23,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 312 transitions. [2019-11-20 03:55:23,753 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 312 transitions. Word has length 33 [2019-11-20 03:55:23,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:55:23,753 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 312 transitions. [2019-11-20 03:55:23,754 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:55:23,754 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 312 transitions. [2019-11-20 03:55:23,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 03:55:23,755 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:55:23,755 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:55:23,755 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:55:23,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:23,756 INFO L82 PathProgramCache]: Analyzing trace with hash 186139387, now seen corresponding path program 1 times [2019-11-20 03:55:23,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:23,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751082551] [2019-11-20 03:55:23,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:55:23,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:55:23,848 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751082551] [2019-11-20 03:55:23,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:55:23,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 03:55:23,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721112939] [2019-11-20 03:55:23,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 03:55:23,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:55:23,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 03:55:23,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-20 03:55:23,849 INFO L87 Difference]: Start difference. First operand 236 states and 312 transitions. Second operand 8 states. [2019-11-20 03:55:24,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:55:24,225 INFO L93 Difference]: Finished difference Result 874 states and 1160 transitions. [2019-11-20 03:55:24,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-20 03:55:24,226 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-20 03:55:24,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:55:24,230 INFO L225 Difference]: With dead ends: 874 [2019-11-20 03:55:24,230 INFO L226 Difference]: Without dead ends: 644 [2019-11-20 03:55:24,231 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2019-11-20 03:55:24,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2019-11-20 03:55:24,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 236. [2019-11-20 03:55:24,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-11-20 03:55:24,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 306 transitions. [2019-11-20 03:55:24,260 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 306 transitions. Word has length 34 [2019-11-20 03:55:24,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:55:24,261 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 306 transitions. [2019-11-20 03:55:24,261 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 03:55:24,261 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 306 transitions. [2019-11-20 03:55:24,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-20 03:55:24,262 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:55:24,262 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:55:24,262 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:55:24,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:24,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1466712466, now seen corresponding path program 1 times [2019-11-20 03:55:24,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:24,263 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080364250] [2019-11-20 03:55:24,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:24,441 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:55:24,441 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 03:55:24,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 03:55:24 BoogieIcfgContainer [2019-11-20 03:55:24,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 03:55:24,574 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:55:24,574 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:55:24,574 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:55:24,575 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:55:21" (3/4) ... [2019-11-20 03:55:24,577 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 03:55:24,675 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_eaf4e8b9-a536-4451-b032-f976ffbb0a3a/bin/uautomizer/witness.graphml [2019-11-20 03:55:24,677 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:55:24,680 INFO L168 Benchmark]: Toolchain (without parser) took 4467.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 943.4 MB in the beginning and 912.5 MB in the end (delta: 30.9 MB). Peak memory consumption was 159.3 MB. Max. memory is 11.5 GB. [2019-11-20 03:55:24,680 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:55:24,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 551.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -173.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-20 03:55:24,681 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:55:24,681 INFO L168 Benchmark]: Boogie Preprocessor took 37.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:55:24,682 INFO L168 Benchmark]: RCFGBuilder took 816.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. [2019-11-20 03:55:24,682 INFO L168 Benchmark]: TraceAbstraction took 2890.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 934.9 MB in the end (delta: 111.5 MB). Peak memory consumption was 111.5 MB. Max. memory is 11.5 GB. [2019-11-20 03:55:24,682 INFO L168 Benchmark]: Witness Printer took 103.74 ms. Allocated memory is still 1.2 GB. Free memory was 934.9 MB in the beginning and 912.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:55:24,684 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 551.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -173.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 816.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2890.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 934.9 MB in the end (delta: 111.5 MB). Peak memory consumption was 111.5 MB. Max. memory is 11.5 GB. * Witness Printer took 103.74 ms. Allocated memory is still 1.2 GB. Free memory was 934.9 MB in the beginning and 912.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 405]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L147] int pumpRunning = 0; [L148] int systemActive = 1; [L436] int cleanupTimeShifts = 4; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L512] int retValue_acc ; [L513] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L519] tmp = valid_product() [L521] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L335] int splverifierCounter ; [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L339] int tmp___2 ; [L342] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L344] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L346] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L352] tmp = __VERIFIER_nondet_int() [L354] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L155] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L162] COND TRUE \read(systemActive) [L184] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L187] COND TRUE ! pumpRunning [L299] int retValue_acc ; [L300] int tmp ; [L301] int tmp___0 ; [L127] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L305] tmp = isHighWaterSensorDry() [L307] COND FALSE !(\read(tmp)) [L310] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L312] retValue_acc = tmp___0 [L313] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] tmp = isHighWaterLevel() [L191] COND TRUE \read(tmp) [L218] int tmp ; [L243] int retValue_acc ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L247] retValue_acc = isMethaneLevelCritical() [L249] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L222] tmp = isMethaneAlarm() [L224] COND FALSE !(\read(tmp)) [L212] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L411] int tmp ; [L412] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L416] tmp = isMethaneLevelCritical() [L418] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L344] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L346] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L352] tmp = __VERIFIER_nondet_int() [L354] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L155] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L162] COND TRUE \read(systemActive) [L184] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L187] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L411] int tmp ; [L412] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L416] tmp = isMethaneLevelCritical() [L418] COND TRUE \read(tmp) [L254] int retValue_acc ; [L257] retValue_acc = pumpRunning [L258] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L420] tmp___0 = isPumpRunning() [L422] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L405] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.8s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 870 SDtfs, 1375 SDslu, 1757 SDs, 0 SdLazy, 219 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 1157 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 311 NumberOfCodeBlocks, 311 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 13787 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...