./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product47.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_097ebb6a-d91e-42f0-a430-33ab6507718c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_097ebb6a-d91e-42f0-a430-33ab6507718c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_097ebb6a-d91e-42f0-a430-33ab6507718c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_097ebb6a-d91e-42f0-a430-33ab6507718c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_097ebb6a-d91e-42f0-a430-33ab6507718c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_097ebb6a-d91e-42f0-a430-33ab6507718c/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 58d8e3bdac126218d105f0be97d14e97f305aadd ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.2.0-a4ecdab [2020-11-28 03:01:56,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:01:56,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:01:56,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:01:56,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:01:56,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:01:56,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:01:56,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:01:56,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:01:56,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:01:56,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:01:56,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:01:56,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:01:56,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:01:56,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:01:56,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:01:56,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:01:56,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:01:56,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:01:56,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:01:56,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:01:56,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:01:56,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:01:56,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:01:56,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:01:56,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:01:56,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:01:56,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:01:56,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:01:56,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:01:56,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:01:56,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:01:56,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:01:56,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:01:56,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:01:56,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:01:56,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:01:56,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:01:56,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:01:56,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:01:56,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:01:56,926 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_097ebb6a-d91e-42f0-a430-33ab6507718c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:01:56,953 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:01:56,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:01:56,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:01:56,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:01:56,955 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:01:56,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:01:56,955 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:01:56,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:01:56,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:01:56,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:01:56,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:01:56,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:01:56,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:01:56,956 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:01:56,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:01:56,957 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:01:56,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:01:56,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:01:56,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:01:56,957 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:01:56,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:01:56,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:01:56,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:01:56,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:01:56,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:01:56,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:01:56,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:01:56,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:01:56,959 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:01:56,959 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_097ebb6a-d91e-42f0-a430-33ab6507718c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_097ebb6a-d91e-42f0-a430-33ab6507718c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58d8e3bdac126218d105f0be97d14e97f305aadd [2020-11-28 03:01:57,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:01:57,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:01:57,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:01:57,267 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:01:57,269 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:01:57,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_097ebb6a-d91e-42f0-a430-33ab6507718c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c [2020-11-28 03:01:57,368 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_097ebb6a-d91e-42f0-a430-33ab6507718c/bin/uautomizer/data/da0b4a43b/f34e302db16c495dab7dc5de2d94c447/FLAGc408f639a [2020-11-28 03:01:57,886 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:01:57,886 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_097ebb6a-d91e-42f0-a430-33ab6507718c/sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c [2020-11-28 03:01:57,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_097ebb6a-d91e-42f0-a430-33ab6507718c/bin/uautomizer/data/da0b4a43b/f34e302db16c495dab7dc5de2d94c447/FLAGc408f639a [2020-11-28 03:01:58,194 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_097ebb6a-d91e-42f0-a430-33ab6507718c/bin/uautomizer/data/da0b4a43b/f34e302db16c495dab7dc5de2d94c447 [2020-11-28 03:01:58,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:01:58,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:01:58,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:58,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:01:58,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:01:58,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:58" (1/1) ... [2020-11-28 03:01:58,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@423111c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:58, skipping insertion in model container [2020-11-28 03:01:58,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:58" (1/1) ... [2020-11-28 03:01:58,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:01:58,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:01:58,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:58,676 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:01:58,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:58,850 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:01:58,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:58 WrapperNode [2020-11-28 03:01:58,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:58,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:58,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:01:58,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:01:58,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:58" (1/1) ... [2020-11-28 03:01:58,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:58" (1/1) ... [2020-11-28 03:01:58,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:58,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:01:58,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:01:58,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:01:58,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:58" (1/1) ... [2020-11-28 03:01:58,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:58" (1/1) ... [2020-11-28 03:01:58,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:58" (1/1) ... [2020-11-28 03:01:58,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:58" (1/1) ... [2020-11-28 03:01:58,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:58" (1/1) ... [2020-11-28 03:01:58,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:58" (1/1) ... [2020-11-28 03:01:59,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:58" (1/1) ... [2020-11-28 03:01:59,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:01:59,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:01:59,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:01:59,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:01:59,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_097ebb6a-d91e-42f0-a430-33ab6507718c/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 [2020-11-28 03:01:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:01:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:01:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:01:59,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:02:00,115 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:02:00,115 INFO L298 CfgBuilder]: Removed 202 assume(true) statements. [2020-11-28 03:02:00,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:00 BoogieIcfgContainer [2020-11-28 03:02:00,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:02:00,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:02:00,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:02:00,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:02:00,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:01:58" (1/3) ... [2020-11-28 03:02:00,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b69ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:02:00, skipping insertion in model container [2020-11-28 03:02:00,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:58" (2/3) ... [2020-11-28 03:02:00,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b69ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:02:00, skipping insertion in model container [2020-11-28 03:02:00,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:00" (3/3) ... [2020-11-28 03:02:00,125 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product47.cil.c [2020-11-28 03:02:00,135 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:02:00,139 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:02:00,150 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:02:00,186 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:02:00,186 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:02:00,186 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:02:00,187 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:02:00,187 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:02:00,187 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:02:00,188 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:02:00,188 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:02:00,210 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2020-11-28 03:02:00,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:02:00,216 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:00,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:00,218 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:00,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:00,223 INFO L82 PathProgramCache]: Analyzing trace with hash 981613085, now seen corresponding path program 1 times [2020-11-28 03:02:00,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:00,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049801614] [2020-11-28 03:02:00,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:00,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:00,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049801614] [2020-11-28 03:02:00,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:00,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:02:00,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133024881] [2020-11-28 03:02:00,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:02:00,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:00,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:02:00,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:02:00,596 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 2 states. [2020-11-28 03:02:00,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:00,656 INFO L93 Difference]: Finished difference Result 259 states and 386 transitions. [2020-11-28 03:02:00,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:02:00,658 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-28 03:02:00,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:00,674 INFO L225 Difference]: With dead ends: 259 [2020-11-28 03:02:00,674 INFO L226 Difference]: Without dead ends: 127 [2020-11-28 03:02:00,684 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 [2020-11-28 03:02:00,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-11-28 03:02:00,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2020-11-28 03:02:00,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-11-28 03:02:00,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 183 transitions. [2020-11-28 03:02:00,734 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 183 transitions. Word has length 16 [2020-11-28 03:02:00,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:00,735 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 183 transitions. [2020-11-28 03:02:00,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:02:00,735 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 183 transitions. [2020-11-28 03:02:00,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:02:00,737 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:00,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:00,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:02:00,737 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:00,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:00,738 INFO L82 PathProgramCache]: Analyzing trace with hash -2140007732, now seen corresponding path program 1 times [2020-11-28 03:02:00,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:00,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830533140] [2020-11-28 03:02:00,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:00,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:00,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830533140] [2020-11-28 03:02:00,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:00,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:02:00,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796831] [2020-11-28 03:02:00,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:02:00,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:00,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:02:00,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:02:00,838 INFO L87 Difference]: Start difference. First operand 127 states and 183 transitions. Second operand 3 states. [2020-11-28 03:02:00,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:00,849 INFO L93 Difference]: Finished difference Result 127 states and 183 transitions. [2020-11-28 03:02:00,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:02:00,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 03:02:00,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:00,851 INFO L225 Difference]: With dead ends: 127 [2020-11-28 03:02:00,851 INFO L226 Difference]: Without dead ends: 53 [2020-11-28 03:02:00,852 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 [2020-11-28 03:02:00,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-28 03:02:00,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-11-28 03:02:00,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-28 03:02:00,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2020-11-28 03:02:00,858 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2020-11-28 03:02:00,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:00,859 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2020-11-28 03:02:00,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:02:00,859 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2020-11-28 03:02:00,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:02:00,860 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:00,860 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] [2020-11-28 03:02:00,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:02:00,861 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:00,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:00,862 INFO L82 PathProgramCache]: Analyzing trace with hash 445162074, now seen corresponding path program 1 times [2020-11-28 03:02:00,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:00,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275916396] [2020-11-28 03:02:00,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:00,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:00,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275916396] [2020-11-28 03:02:00,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:00,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:02:00,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072507063] [2020-11-28 03:02:00,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:02:00,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:00,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:02:00,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:02:00,969 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 3 states. [2020-11-28 03:02:00,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:00,993 INFO L93 Difference]: Finished difference Result 147 states and 216 transitions. [2020-11-28 03:02:00,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:02:00,996 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-28 03:02:00,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:00,998 INFO L225 Difference]: With dead ends: 147 [2020-11-28 03:02:00,998 INFO L226 Difference]: Without dead ends: 100 [2020-11-28 03:02:00,999 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 [2020-11-28 03:02:00,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-11-28 03:02:01,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2020-11-28 03:02:01,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-11-28 03:02:01,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 141 transitions. [2020-11-28 03:02:01,021 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 141 transitions. Word has length 22 [2020-11-28 03:02:01,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:01,021 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 141 transitions. [2020-11-28 03:02:01,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:02:01,021 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 141 transitions. [2020-11-28 03:02:01,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:02:01,022 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:01,023 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] [2020-11-28 03:02:01,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:02:01,023 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:01,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:01,024 INFO L82 PathProgramCache]: Analyzing trace with hash 96758808, now seen corresponding path program 1 times [2020-11-28 03:02:01,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:01,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331489643] [2020-11-28 03:02:01,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:01,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:01,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331489643] [2020-11-28 03:02:01,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:01,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:02:01,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682300534] [2020-11-28 03:02:01,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:02:01,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:01,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:02:01,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:02:01,110 INFO L87 Difference]: Start difference. First operand 96 states and 141 transitions. Second operand 3 states. [2020-11-28 03:02:01,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:01,158 INFO L93 Difference]: Finished difference Result 227 states and 338 transitions. [2020-11-28 03:02:01,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:02:01,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:02:01,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:01,160 INFO L225 Difference]: With dead ends: 227 [2020-11-28 03:02:01,160 INFO L226 Difference]: Without dead ends: 137 [2020-11-28 03:02:01,161 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 [2020-11-28 03:02:01,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-11-28 03:02:01,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2020-11-28 03:02:01,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-11-28 03:02:01,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 195 transitions. [2020-11-28 03:02:01,174 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 195 transitions. Word has length 24 [2020-11-28 03:02:01,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:01,175 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 195 transitions. [2020-11-28 03:02:01,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:02:01,175 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 195 transitions. [2020-11-28 03:02:01,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:02:01,176 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:01,177 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] [2020-11-28 03:02:01,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:02:01,177 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:01,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:01,178 INFO L82 PathProgramCache]: Analyzing trace with hash -732744145, now seen corresponding path program 1 times [2020-11-28 03:02:01,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:01,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689869694] [2020-11-28 03:02:01,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:01,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:01,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689869694] [2020-11-28 03:02:01,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:01,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:02:01,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750485744] [2020-11-28 03:02:01,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:02:01,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:01,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:02:01,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:02:01,283 INFO L87 Difference]: Start difference. First operand 135 states and 195 transitions. Second operand 5 states. [2020-11-28 03:02:01,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:01,425 INFO L93 Difference]: Finished difference Result 487 states and 709 transitions. [2020-11-28 03:02:01,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:02:01,426 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-28 03:02:01,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:01,430 INFO L225 Difference]: With dead ends: 487 [2020-11-28 03:02:01,430 INFO L226 Difference]: Without dead ends: 358 [2020-11-28 03:02:01,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:02:01,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-11-28 03:02:01,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 224. [2020-11-28 03:02:01,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-11-28 03:02:01,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 314 transitions. [2020-11-28 03:02:01,473 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 314 transitions. Word has length 25 [2020-11-28 03:02:01,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:01,474 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 314 transitions. [2020-11-28 03:02:01,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:02:01,474 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 314 transitions. [2020-11-28 03:02:01,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:02:01,476 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:01,476 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] [2020-11-28 03:02:01,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:02:01,477 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:01,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:01,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1602914161, now seen corresponding path program 1 times [2020-11-28 03:02:01,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:01,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480681145] [2020-11-28 03:02:01,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:01,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:01,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480681145] [2020-11-28 03:02:01,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:01,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:02:01,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349026479] [2020-11-28 03:02:01,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:02:01,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:01,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:02:01,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:02:01,587 INFO L87 Difference]: Start difference. First operand 224 states and 314 transitions. Second operand 5 states. [2020-11-28 03:02:01,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:01,738 INFO L93 Difference]: Finished difference Result 486 states and 694 transitions. [2020-11-28 03:02:01,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:02:01,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-28 03:02:01,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:01,742 INFO L225 Difference]: With dead ends: 486 [2020-11-28 03:02:01,742 INFO L226 Difference]: Without dead ends: 484 [2020-11-28 03:02:01,743 INFO L677 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 [2020-11-28 03:02:01,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2020-11-28 03:02:01,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 224. [2020-11-28 03:02:01,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-11-28 03:02:01,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 312 transitions. [2020-11-28 03:02:01,780 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 312 transitions. Word has length 26 [2020-11-28 03:02:01,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:01,784 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 312 transitions. [2020-11-28 03:02:01,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:02:01,784 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 312 transitions. [2020-11-28 03:02:01,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 03:02:01,792 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:01,792 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, 1, 1, 1] [2020-11-28 03:02:01,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:02:01,792 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:01,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:01,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1235666169, now seen corresponding path program 1 times [2020-11-28 03:02:01,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:01,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927458362] [2020-11-28 03:02:01,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:01,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:01,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927458362] [2020-11-28 03:02:01,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:01,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:02:01,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063777295] [2020-11-28 03:02:01,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:02:01,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:01,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:02:01,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:02:01,876 INFO L87 Difference]: Start difference. First operand 224 states and 312 transitions. Second operand 4 states. [2020-11-28 03:02:01,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:01,958 INFO L93 Difference]: Finished difference Result 678 states and 956 transitions. [2020-11-28 03:02:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:02:01,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-11-28 03:02:01,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:01,962 INFO L225 Difference]: With dead ends: 678 [2020-11-28 03:02:01,963 INFO L226 Difference]: Without dead ends: 549 [2020-11-28 03:02:01,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:02:01,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-11-28 03:02:01,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 232. [2020-11-28 03:02:01,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-11-28 03:02:01,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 320 transitions. [2020-11-28 03:02:01,997 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 320 transitions. Word has length 34 [2020-11-28 03:02:01,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:01,999 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 320 transitions. [2020-11-28 03:02:01,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:02:02,000 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 320 transitions. [2020-11-28 03:02:02,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 03:02:02,002 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:02,002 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, 1, 1, 1] [2020-11-28 03:02:02,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:02:02,003 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:02,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:02,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1822472183, now seen corresponding path program 1 times [2020-11-28 03:02:02,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:02,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244336154] [2020-11-28 03:02:02,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:02,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:02,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244336154] [2020-11-28 03:02:02,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:02,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:02:02,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578627400] [2020-11-28 03:02:02,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:02:02,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:02,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:02:02,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:02:02,092 INFO L87 Difference]: Start difference. First operand 232 states and 320 transitions. Second operand 5 states. [2020-11-28 03:02:02,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:02,323 INFO L93 Difference]: Finished difference Result 828 states and 1170 transitions. [2020-11-28 03:02:02,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:02:02,323 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-11-28 03:02:02,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:02,328 INFO L225 Difference]: With dead ends: 828 [2020-11-28 03:02:02,328 INFO L226 Difference]: Without dead ends: 691 [2020-11-28 03:02:02,329 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 [2020-11-28 03:02:02,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-11-28 03:02:02,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 327. [2020-11-28 03:02:02,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-11-28 03:02:02,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 447 transitions. [2020-11-28 03:02:02,365 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 447 transitions. Word has length 34 [2020-11-28 03:02:02,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:02,366 INFO L481 AbstractCegarLoop]: Abstraction has 327 states and 447 transitions. [2020-11-28 03:02:02,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:02:02,366 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 447 transitions. [2020-11-28 03:02:02,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 03:02:02,367 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:02,367 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, 1, 1, 1] [2020-11-28 03:02:02,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:02:02,367 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:02,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:02,368 INFO L82 PathProgramCache]: Analyzing trace with hash 44197509, now seen corresponding path program 1 times [2020-11-28 03:02:02,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:02,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321392289] [2020-11-28 03:02:02,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:02,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:02,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321392289] [2020-11-28 03:02:02,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:02,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:02:02,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443801305] [2020-11-28 03:02:02,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:02:02,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:02,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:02:02,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:02:02,438 INFO L87 Difference]: Start difference. First operand 327 states and 447 transitions. Second operand 4 states. [2020-11-28 03:02:02,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:02,558 INFO L93 Difference]: Finished difference Result 614 states and 851 transitions. [2020-11-28 03:02:02,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:02:02,558 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-11-28 03:02:02,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:02,561 INFO L225 Difference]: With dead ends: 614 [2020-11-28 03:02:02,561 INFO L226 Difference]: Without dead ends: 380 [2020-11-28 03:02:02,562 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 [2020-11-28 03:02:02,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-11-28 03:02:02,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 366. [2020-11-28 03:02:02,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-11-28 03:02:02,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 507 transitions. [2020-11-28 03:02:02,594 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 507 transitions. Word has length 34 [2020-11-28 03:02:02,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:02,595 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 507 transitions. [2020-11-28 03:02:02,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:02:02,595 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 507 transitions. [2020-11-28 03:02:02,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-28 03:02:02,596 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:02,597 INFO L422 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, 1] [2020-11-28 03:02:02,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:02:02,597 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:02,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:02,598 INFO L82 PathProgramCache]: Analyzing trace with hash -699373065, now seen corresponding path program 1 times [2020-11-28 03:02:02,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:02,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365033747] [2020-11-28 03:02:02,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:02,666 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:02:02,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365033747] [2020-11-28 03:02:02,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:02,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:02:02,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787311654] [2020-11-28 03:02:02,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:02:02,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:02,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:02:02,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:02:02,668 INFO L87 Difference]: Start difference. First operand 366 states and 507 transitions. Second operand 3 states. [2020-11-28 03:02:02,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:02,746 INFO L93 Difference]: Finished difference Result 455 states and 626 transitions. [2020-11-28 03:02:02,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:02:02,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-11-28 03:02:02,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:02,752 INFO L225 Difference]: With dead ends: 455 [2020-11-28 03:02:02,752 INFO L226 Difference]: Without dead ends: 175 [2020-11-28 03:02:02,753 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 [2020-11-28 03:02:02,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-11-28 03:02:02,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 163. [2020-11-28 03:02:02,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-28 03:02:02,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 213 transitions. [2020-11-28 03:02:02,777 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 213 transitions. Word has length 50 [2020-11-28 03:02:02,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:02,778 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 213 transitions. [2020-11-28 03:02:02,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:02:02,778 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 213 transitions. [2020-11-28 03:02:02,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-28 03:02:02,779 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:02,779 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, 1, 1] [2020-11-28 03:02:02,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:02:02,780 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:02,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:02,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1373275180, now seen corresponding path program 1 times [2020-11-28 03:02:02,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:02,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916069869] [2020-11-28 03:02:02,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:02,861 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:02:02,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916069869] [2020-11-28 03:02:02,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:02,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:02:02,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886156880] [2020-11-28 03:02:02,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:02:02,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:02,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:02:02,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:02:02,865 INFO L87 Difference]: Start difference. First operand 163 states and 213 transitions. Second operand 5 states. [2020-11-28 03:02:02,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:02,970 INFO L93 Difference]: Finished difference Result 430 states and 560 transitions. [2020-11-28 03:02:02,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:02:02,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-11-28 03:02:02,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:02,972 INFO L225 Difference]: With dead ends: 430 [2020-11-28 03:02:02,972 INFO L226 Difference]: Without dead ends: 273 [2020-11-28 03:02:02,973 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 [2020-11-28 03:02:02,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-11-28 03:02:02,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 172. [2020-11-28 03:02:02,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-11-28 03:02:02,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 222 transitions. [2020-11-28 03:02:02,989 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 222 transitions. Word has length 52 [2020-11-28 03:02:02,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:02,990 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 222 transitions. [2020-11-28 03:02:02,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:02:02,990 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 222 transitions. [2020-11-28 03:02:02,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-28 03:02:02,990 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:02,990 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, 1, 1] [2020-11-28 03:02:02,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:02:02,991 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:02,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:02,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1098515566, now seen corresponding path program 1 times [2020-11-28 03:02:02,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:02,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537095835] [2020-11-28 03:02:02,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:03,076 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:02:03,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537095835] [2020-11-28 03:02:03,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:03,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:02:03,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410808811] [2020-11-28 03:02:03,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:02:03,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:03,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:02:03,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:02:03,078 INFO L87 Difference]: Start difference. First operand 172 states and 222 transitions. Second operand 5 states. [2020-11-28 03:02:03,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:03,175 INFO L93 Difference]: Finished difference Result 350 states and 452 transitions. [2020-11-28 03:02:03,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:02:03,180 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-11-28 03:02:03,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:03,181 INFO L225 Difference]: With dead ends: 350 [2020-11-28 03:02:03,181 INFO L226 Difference]: Without dead ends: 184 [2020-11-28 03:02:03,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:02:03,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-11-28 03:02:03,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 139. [2020-11-28 03:02:03,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-11-28 03:02:03,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 175 transitions. [2020-11-28 03:02:03,195 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 175 transitions. Word has length 52 [2020-11-28 03:02:03,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:03,196 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 175 transitions. [2020-11-28 03:02:03,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:02:03,196 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 175 transitions. [2020-11-28 03:02:03,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-28 03:02:03,196 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:03,197 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, 1] [2020-11-28 03:02:03,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:02:03,197 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:03,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:03,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1670940338, now seen corresponding path program 1 times [2020-11-28 03:02:03,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:03,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560945542] [2020-11-28 03:02:03,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:03,289 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:03,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560945542] [2020-11-28 03:02:03,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62538682] [2020-11-28 03:02:03,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_097ebb6a-d91e-42f0-a430-33ab6507718c/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 [2020-11-28 03:02:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:03,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:02:03,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:02:03,670 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:03,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:02:03,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-11-28 03:02:03,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687153536] [2020-11-28 03:02:03,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:02:03,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:03,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:02:03,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:02:03,672 INFO L87 Difference]: Start difference. First operand 139 states and 175 transitions. Second operand 8 states. [2020-11-28 03:02:04,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:04,021 INFO L93 Difference]: Finished difference Result 526 states and 680 transitions. [2020-11-28 03:02:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 03:02:04,021 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-11-28 03:02:04,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:04,025 INFO L225 Difference]: With dead ends: 526 [2020-11-28 03:02:04,025 INFO L226 Difference]: Without dead ends: 417 [2020-11-28 03:02:04,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-11-28 03:02:04,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-11-28 03:02:04,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 191. [2020-11-28 03:02:04,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-11-28 03:02:04,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 243 transitions. [2020-11-28 03:02:04,052 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 243 transitions. Word has length 53 [2020-11-28 03:02:04,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:04,054 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 243 transitions. [2020-11-28 03:02:04,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:02:04,054 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 243 transitions. [2020-11-28 03:02:04,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-11-28 03:02:04,055 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:04,055 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 03:02:04,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-28 03:02:04,284 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:04,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:04,284 INFO L82 PathProgramCache]: Analyzing trace with hash 252080105, now seen corresponding path program 2 times [2020-11-28 03:02:04,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:04,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364748962] [2020-11-28 03:02:04,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:02:04,369 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:02:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:02:04,445 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:02:04,519 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:02:04,519 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:02:04,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 03:02:04,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:02:04 BoogieIcfgContainer [2020-11-28 03:02:04,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:02:04,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:02:04,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:02:04,704 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:02:04,705 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:00" (3/4) ... [2020-11-28 03:02:04,707 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:02:04,914 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_097ebb6a-d91e-42f0-a430-33ab6507718c/bin/uautomizer/witness.graphml [2020-11-28 03:02:04,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:02:04,916 INFO L168 Benchmark]: Toolchain (without parser) took 6717.14 ms. Allocated memory was 115.3 MB in the beginning and 169.9 MB in the end (delta: 54.5 MB). Free memory was 77.4 MB in the beginning and 91.0 MB in the end (delta: -13.6 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:02:04,917 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 115.3 MB. Free memory was 94.6 MB in the beginning and 94.5 MB in the end (delta: 52.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:02:04,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.07 ms. Allocated memory is still 115.3 MB. Free memory was 77.1 MB in the beginning and 79.9 MB in the end (delta: -2.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:02:04,918 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.36 ms. Allocated memory is still 115.3 MB. Free memory was 79.9 MB in the beginning and 76.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:02:04,918 INFO L168 Benchmark]: Boogie Preprocessor took 52.26 ms. Allocated memory is still 115.3 MB. Free memory was 76.1 MB in the beginning and 73.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:02:04,918 INFO L168 Benchmark]: RCFGBuilder took 1112.11 ms. Allocated memory is still 115.3 MB. Free memory was 72.9 MB in the beginning and 52.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:02:04,919 INFO L168 Benchmark]: TraceAbstraction took 4585.02 ms. Allocated memory was 115.3 MB in the beginning and 169.9 MB in the end (delta: 54.5 MB). Free memory was 51.8 MB in the beginning and 119.3 MB in the end (delta: -67.5 MB). Peak memory consumption was 62.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:02:04,919 INFO L168 Benchmark]: Witness Printer took 210.42 ms. Allocated memory is still 169.9 MB. Free memory was 119.3 MB in the beginning and 91.0 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:02:04,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 115.3 MB. Free memory was 94.6 MB in the beginning and 94.5 MB in the end (delta: 52.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 651.07 ms. Allocated memory is still 115.3 MB. Free memory was 77.1 MB in the beginning and 79.9 MB in the end (delta: -2.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.36 ms. Allocated memory is still 115.3 MB. Free memory was 79.9 MB in the beginning and 76.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.26 ms. Allocated memory is still 115.3 MB. Free memory was 76.1 MB in the beginning and 73.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1112.11 ms. Allocated memory is still 115.3 MB. Free memory was 72.9 MB in the beginning and 52.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4585.02 ms. Allocated memory was 115.3 MB in the beginning and 169.9 MB in the end (delta: 54.5 MB). Free memory was 51.8 MB in the beginning and 119.3 MB in the end (delta: -67.5 MB). Peak memory consumption was 62.7 MB. Max. memory is 16.1 GB. * Witness Printer took 210.42 ms. Allocated memory is still 169.9 MB. Free memory was 119.3 MB in the beginning and 91.0 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L221] int pumpRunning = 0; [L222] int systemActive = 1; [L601] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L870] int waterLevel = 1; [L871] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] int retValue_acc ; [L864] retValue_acc = 1 [L865] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L148] int splverifierCounter ; [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L152] int tmp___2 ; [L155] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L159] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L165] tmp = __VERIFIER_nondet_int() [L167] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L888] COND TRUE waterLevel < 2 [L889] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L175] tmp___0 = __VERIFIER_nondet_int() [L177] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L185] tmp___2 = __VERIFIER_nondet_int() [L187] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L229] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L236] COND TRUE \read(systemActive) [L284] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L287] COND FALSE !(\read(pumpRunning)) [L258] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L261] COND TRUE ! pumpRunning [L398] int retValue_acc ; [L399] int tmp ; [L400] int tmp___0 ; [L950] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L953] COND FALSE !(waterLevel < 2) [L957] retValue_acc = 0 [L958] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L404] tmp = isHighWaterSensorDry() [L406] COND FALSE !(\read(tmp)) [L409] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L411] retValue_acc = tmp___0 [L412] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L263] tmp = isHighWaterLevel() [L265] COND TRUE \read(tmp) [L317] int tmp ; [L342] int retValue_acc ; [L909] int retValue_acc ; [L912] retValue_acc = methaneLevelCritical [L913] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L346] retValue_acc = isMethaneLevelCritical() [L348] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L321] tmp = isMethaneAlarm() [L323] COND FALSE !(\read(tmp)) [L312] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L801] int tmp ; [L802] int tmp___0 ; [L941] int retValue_acc ; [L944] retValue_acc = waterLevel [L945] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L806] tmp = getWaterLevel() [L808] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L157] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L159] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L165] tmp = __VERIFIER_nondet_int() [L167] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L175] tmp___0 = __VERIFIER_nondet_int() [L177] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L185] tmp___2 = __VERIFIER_nondet_int() [L187] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L229] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L876] COND TRUE waterLevel > 0 [L877] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L236] COND TRUE \read(systemActive) [L284] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L287] COND TRUE \read(pumpRunning) [L342] int retValue_acc ; [L909] int retValue_acc ; [L912] retValue_acc = methaneLevelCritical [L913] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L346] retValue_acc = isMethaneLevelCritical() [L348] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L289] tmp = isMethaneAlarm() [L291] COND FALSE !(\read(tmp)) [L258] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L261] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L801] int tmp ; [L802] int tmp___0 ; [L941] int retValue_acc ; [L944] retValue_acc = waterLevel [L945] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L806] tmp = getWaterLevel() [L808] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L157] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L159] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L165] tmp = __VERIFIER_nondet_int() [L167] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L175] tmp___0 = __VERIFIER_nondet_int() [L177] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L185] tmp___2 = __VERIFIER_nondet_int() [L187] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L229] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L876] COND TRUE waterLevel > 0 [L877] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L236] COND TRUE \read(systemActive) [L284] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L287] COND TRUE \read(pumpRunning) [L342] int retValue_acc ; [L909] int retValue_acc ; [L912] retValue_acc = methaneLevelCritical [L913] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L346] retValue_acc = isMethaneLevelCritical() [L348] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L289] tmp = isMethaneAlarm() [L291] COND FALSE !(\read(tmp)) [L258] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L261] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L801] int tmp ; [L802] int tmp___0 ; [L941] int retValue_acc ; [L944] retValue_acc = waterLevel [L945] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L806] tmp = getWaterLevel() [L808] COND TRUE tmp == 0 [L353] int retValue_acc ; [L356] retValue_acc = pumpRunning [L357] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L810] tmp___0 = isPumpRunning() [L812] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec4_product47.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 134 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.3s, OverallIterations: 14, TraceHistogramMax: 3, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1586 SDtfs, 1744 SDslu, 2299 SDs, 0 SdLazy, 317 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=366occurred 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: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 1479 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 564 NumberOfCodeBlocks, 564 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 478 ConstructedInterpolants, 0 QuantifiedInterpolants, 33474 SizeOfPredicates, 4 NumberOfNonLiveVariables, 432 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 63/69 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 incorrect! Received shutdown request...