./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product41.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_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/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 0e896c9575d2274fe1bd6f66c7235e6d3190661d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:11:25,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:11:25,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:11:25,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:11:25,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:11:25,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:11:25,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:11:25,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:11:25,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:11:25,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:11:25,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:11:25,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:11:25,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:11:25,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:11:25,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:11:25,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:11:25,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:11:25,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:11:25,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:11:25,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:11:25,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:11:25,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:11:25,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:11:25,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:11:25,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:11:25,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:11:25,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:11:25,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:11:25,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:11:25,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:11:25,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:11:25,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:11:25,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:11:25,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:11:25,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:11:25,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:11:25,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:11:25,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:11:25,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:11:25,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:11:25,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:11:25,998 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:11:26,036 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:11:26,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:11:26,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:11:26,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:11:26,039 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:11:26,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:11:26,039 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:11:26,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:11:26,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:11:26,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:11:26,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:11:26,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:11:26,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:11:26,042 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:11:26,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:11:26,042 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:11:26,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:11:26,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:11:26,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:11:26,043 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:11:26,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:11:26,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:11:26,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:11:26,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:11:26,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:11:26,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:11:26,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:11:26,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:11:26,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:11:26,045 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_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e896c9575d2274fe1bd6f66c7235e6d3190661d [2020-11-28 03:11:26,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:11:26,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:11:26,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:11:26,385 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:11:26,387 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:11:26,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2020-11-28 03:11:26,471 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/bin/uautomizer/data/148b6fb4a/dd4980a46d3349f18f678be177427150/FLAG5e7bd5c67 [2020-11-28 03:11:27,128 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:11:27,129 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2020-11-28 03:11:27,140 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/bin/uautomizer/data/148b6fb4a/dd4980a46d3349f18f678be177427150/FLAG5e7bd5c67 [2020-11-28 03:11:27,414 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/bin/uautomizer/data/148b6fb4a/dd4980a46d3349f18f678be177427150 [2020-11-28 03:11:27,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:11:27,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:11:27,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:27,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:11:27,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:11:27,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:27" (1/1) ... [2020-11-28 03:11:27,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61283159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:27, skipping insertion in model container [2020-11-28 03:11:27,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:27" (1/1) ... [2020-11-28 03:11:27,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:11:27,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:11:27,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:27,909 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:11:28,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:28,043 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:11:28,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28 WrapperNode [2020-11-28 03:11:28,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:28,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:28,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:11:28,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:11:28,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:28,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:11:28,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:11:28,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:11:28,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:11:28,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:11:28,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:11:28,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:11:28,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/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 03:11:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:11:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:11:28,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:11:28,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:11:29,399 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:11:29,404 INFO L298 CfgBuilder]: Removed 120 assume(true) statements. [2020-11-28 03:11:29,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:29 BoogieIcfgContainer [2020-11-28 03:11:29,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:11:29,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:11:29,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:11:29,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:11:29,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:11:27" (1/3) ... [2020-11-28 03:11:29,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d439388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:29, skipping insertion in model container [2020-11-28 03:11:29,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (2/3) ... [2020-11-28 03:11:29,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d439388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:29, skipping insertion in model container [2020-11-28 03:11:29,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:29" (3/3) ... [2020-11-28 03:11:29,418 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2020-11-28 03:11:29,430 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:11:29,434 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:11:29,446 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:11:29,486 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:11:29,486 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:11:29,486 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:11:29,486 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:11:29,486 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:11:29,487 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:11:29,487 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:11:29,487 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:11:29,510 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-11-28 03:11:29,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:11:29,515 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:29,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:29,518 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:29,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:29,525 INFO L82 PathProgramCache]: Analyzing trace with hash -742459830, now seen corresponding path program 1 times [2020-11-28 03:11:29,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:29,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112575597] [2020-11-28 03:11:29,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:29,792 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 03:11:29,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112575597] [2020-11-28 03:11:29,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:29,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:29,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406133039] [2020-11-28 03:11:29,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:11:29,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:29,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:11:29,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:11:29,816 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-11-28 03:11:29,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:29,847 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2020-11-28 03:11:29,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:11:29,848 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-28 03:11:29,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:29,871 INFO L225 Difference]: With dead ends: 171 [2020-11-28 03:11:29,876 INFO L226 Difference]: Without dead ends: 83 [2020-11-28 03:11:29,880 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 03:11:29,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-11-28 03:11:29,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-11-28 03:11:29,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-11-28 03:11:29,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2020-11-28 03:11:29,944 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2020-11-28 03:11:29,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:29,945 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2020-11-28 03:11:29,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:11:29,946 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2020-11-28 03:11:29,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:11:29,947 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:29,948 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 03:11:29,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:11:29,949 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:29,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:29,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1789216727, now seen corresponding path program 1 times [2020-11-28 03:11:29,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:29,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694113483] [2020-11-28 03:11:29,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:30,088 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 03:11:30,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694113483] [2020-11-28 03:11:30,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:30,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:30,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298424255] [2020-11-28 03:11:30,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:30,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:30,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:30,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:30,092 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 3 states. [2020-11-28 03:11:30,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:30,131 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2020-11-28 03:11:30,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:30,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 03:11:30,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:30,134 INFO L225 Difference]: With dead ends: 83 [2020-11-28 03:11:30,136 INFO L226 Difference]: Without dead ends: 37 [2020-11-28 03:11:30,137 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 03:11:30,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-28 03:11:30,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-28 03:11:30,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-28 03:11:30,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2020-11-28 03:11:30,146 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2020-11-28 03:11:30,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:30,147 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2020-11-28 03:11:30,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:30,147 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2020-11-28 03:11:30,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:11:30,151 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:30,151 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 03:11:30,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:11:30,152 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:30,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:30,153 INFO L82 PathProgramCache]: Analyzing trace with hash -2126819203, now seen corresponding path program 1 times [2020-11-28 03:11:30,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:30,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151379846] [2020-11-28 03:11:30,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:30,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:30,301 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 03:11:30,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151379846] [2020-11-28 03:11:30,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:30,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:11:30,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373756846] [2020-11-28 03:11:30,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:11:30,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:30,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:11:30,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:11:30,303 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 6 states. [2020-11-28 03:11:30,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:30,499 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2020-11-28 03:11:30,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:11:30,502 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-11-28 03:11:30,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:30,504 INFO L225 Difference]: With dead ends: 68 [2020-11-28 03:11:30,504 INFO L226 Difference]: Without dead ends: 37 [2020-11-28 03:11:30,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:11:30,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-28 03:11:30,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-28 03:11:30,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-28 03:11:30,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2020-11-28 03:11:30,510 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2020-11-28 03:11:30,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:30,511 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2020-11-28 03:11:30,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:11:30,511 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2020-11-28 03:11:30,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 03:11:30,512 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:30,512 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] [2020-11-28 03:11:30,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:11:30,512 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:30,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:30,513 INFO L82 PathProgramCache]: Analyzing trace with hash -306622024, now seen corresponding path program 1 times [2020-11-28 03:11:30,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:30,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532135376] [2020-11-28 03:11:30,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:30,597 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 03:11:30,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532135376] [2020-11-28 03:11:30,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:30,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:30,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552486354] [2020-11-28 03:11:30,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:30,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:30,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:30,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:30,599 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2020-11-28 03:11:30,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:30,657 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2020-11-28 03:11:30,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:30,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-28 03:11:30,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:30,661 INFO L225 Difference]: With dead ends: 89 [2020-11-28 03:11:30,661 INFO L226 Difference]: Without dead ends: 58 [2020-11-28 03:11:30,662 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 03:11:30,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-11-28 03:11:30,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-11-28 03:11:30,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-28 03:11:30,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2020-11-28 03:11:30,670 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2020-11-28 03:11:30,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:30,670 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2020-11-28 03:11:30,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:30,671 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2020-11-28 03:11:30,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-28 03:11:30,672 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:30,672 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] [2020-11-28 03:11:30,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:11:30,672 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:30,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:30,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1880803796, now seen corresponding path program 1 times [2020-11-28 03:11:30,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:30,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131917349] [2020-11-28 03:11:30,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:30,770 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 03:11:30,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131917349] [2020-11-28 03:11:30,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:30,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:11:30,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497923287] [2020-11-28 03:11:30,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:11:30,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:30,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:11:30,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:30,772 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 5 states. [2020-11-28 03:11:30,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:30,919 INFO L93 Difference]: Finished difference Result 266 states and 385 transitions. [2020-11-28 03:11:30,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:11:30,920 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-11-28 03:11:30,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:30,923 INFO L225 Difference]: With dead ends: 266 [2020-11-28 03:11:30,923 INFO L226 Difference]: Without dead ends: 216 [2020-11-28 03:11:30,924 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 03:11:30,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-11-28 03:11:30,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 100. [2020-11-28 03:11:30,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-28 03:11:30,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 139 transitions. [2020-11-28 03:11:30,953 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 139 transitions. Word has length 29 [2020-11-28 03:11:30,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:30,953 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 139 transitions. [2020-11-28 03:11:30,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:11:30,954 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 139 transitions. [2020-11-28 03:11:30,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 03:11:30,956 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:30,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:30,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:11:30,957 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:30,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:30,958 INFO L82 PathProgramCache]: Analyzing trace with hash 634718134, now seen corresponding path program 1 times [2020-11-28 03:11:30,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:30,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731428902] [2020-11-28 03:11:30,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:31,056 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 03:11:31,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731428902] [2020-11-28 03:11:31,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:31,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:11:31,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143483180] [2020-11-28 03:11:31,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:11:31,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:31,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:11:31,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:31,059 INFO L87 Difference]: Start difference. First operand 100 states and 139 transitions. Second operand 5 states. [2020-11-28 03:11:31,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:31,169 INFO L93 Difference]: Finished difference Result 280 states and 394 transitions. [2020-11-28 03:11:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:11:31,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-28 03:11:31,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:31,171 INFO L225 Difference]: With dead ends: 280 [2020-11-28 03:11:31,172 INFO L226 Difference]: Without dead ends: 278 [2020-11-28 03:11:31,172 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 03:11:31,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-11-28 03:11:31,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 100. [2020-11-28 03:11:31,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-28 03:11:31,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 138 transitions. [2020-11-28 03:11:31,187 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 138 transitions. Word has length 30 [2020-11-28 03:11:31,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:31,187 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 138 transitions. [2020-11-28 03:11:31,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:11:31,188 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 138 transitions. [2020-11-28 03:11:31,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 03:11:31,189 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:31,189 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] [2020-11-28 03:11:31,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:11:31,190 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:31,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:31,190 INFO L82 PathProgramCache]: Analyzing trace with hash 719357973, now seen corresponding path program 1 times [2020-11-28 03:11:31,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:31,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024995588] [2020-11-28 03:11:31,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:31,249 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 03:11:31,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024995588] [2020-11-28 03:11:31,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:31,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:11:31,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303254376] [2020-11-28 03:11:31,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:11:31,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:31,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:11:31,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:31,251 INFO L87 Difference]: Start difference. First operand 100 states and 138 transitions. Second operand 5 states. [2020-11-28 03:11:31,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:31,329 INFO L93 Difference]: Finished difference Result 270 states and 372 transitions. [2020-11-28 03:11:31,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:11:31,330 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-11-28 03:11:31,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:31,332 INFO L225 Difference]: With dead ends: 270 [2020-11-28 03:11:31,332 INFO L226 Difference]: Without dead ends: 176 [2020-11-28 03:11:31,333 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 03:11:31,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-11-28 03:11:31,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 106. [2020-11-28 03:11:31,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-28 03:11:31,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 144 transitions. [2020-11-28 03:11:31,345 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 144 transitions. Word has length 33 [2020-11-28 03:11:31,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:31,346 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 144 transitions. [2020-11-28 03:11:31,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:11:31,346 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 144 transitions. [2020-11-28 03:11:31,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 03:11:31,348 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:31,348 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] [2020-11-28 03:11:31,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:11:31,348 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:31,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:31,349 INFO L82 PathProgramCache]: Analyzing trace with hash 132551959, now seen corresponding path program 1 times [2020-11-28 03:11:31,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:31,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009026940] [2020-11-28 03:11:31,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:31,392 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 03:11:31,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009026940] [2020-11-28 03:11:31,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:31,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:11:31,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132861842] [2020-11-28 03:11:31,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:11:31,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:31,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:11:31,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:11:31,395 INFO L87 Difference]: Start difference. First operand 106 states and 144 transitions. Second operand 4 states. [2020-11-28 03:11:31,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:31,434 INFO L93 Difference]: Finished difference Result 252 states and 342 transitions. [2020-11-28 03:11:31,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:11:31,435 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-11-28 03:11:31,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:31,436 INFO L225 Difference]: With dead ends: 252 [2020-11-28 03:11:31,436 INFO L226 Difference]: Without dead ends: 152 [2020-11-28 03:11:31,437 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 03:11:31,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-11-28 03:11:31,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 110. [2020-11-28 03:11:31,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-11-28 03:11:31,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 148 transitions. [2020-11-28 03:11:31,454 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 148 transitions. Word has length 33 [2020-11-28 03:11:31,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:31,454 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 148 transitions. [2020-11-28 03:11:31,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:11:31,454 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 148 transitions. [2020-11-28 03:11:31,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 03:11:31,458 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:31,458 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] [2020-11-28 03:11:31,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:11:31,459 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:31,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:31,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1147311719, now seen corresponding path program 1 times [2020-11-28 03:11:31,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:31,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897547500] [2020-11-28 03:11:31,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:31,524 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 03:11:31,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897547500] [2020-11-28 03:11:31,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:31,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:31,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694308932] [2020-11-28 03:11:31,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:31,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:31,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:31,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:31,526 INFO L87 Difference]: Start difference. First operand 110 states and 148 transitions. Second operand 3 states. [2020-11-28 03:11:31,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:31,559 INFO L93 Difference]: Finished difference Result 262 states and 352 transitions. [2020-11-28 03:11:31,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:31,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-11-28 03:11:31,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:31,561 INFO L225 Difference]: With dead ends: 262 [2020-11-28 03:11:31,561 INFO L226 Difference]: Without dead ends: 158 [2020-11-28 03:11:31,562 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 03:11:31,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-11-28 03:11:31,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-11-28 03:11:31,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-11-28 03:11:31,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 206 transitions. [2020-11-28 03:11:31,584 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 206 transitions. Word has length 33 [2020-11-28 03:11:31,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:31,584 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 206 transitions. [2020-11-28 03:11:31,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:31,585 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 206 transitions. [2020-11-28 03:11:31,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 03:11:31,589 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:31,589 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 03:11:31,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:11:31,590 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:31,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:31,590 INFO L82 PathProgramCache]: Analyzing trace with hash 9984219, now seen corresponding path program 1 times [2020-11-28 03:11:31,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:31,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601382379] [2020-11-28 03:11:31,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:31,704 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 03:11:31,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601382379] [2020-11-28 03:11:31,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:31,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:11:31,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71457412] [2020-11-28 03:11:31,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:11:31,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:31,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:11:31,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:11:31,717 INFO L87 Difference]: Start difference. First operand 158 states and 206 transitions. Second operand 8 states. [2020-11-28 03:11:32,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:32,222 INFO L93 Difference]: Finished difference Result 576 states and 752 transitions. [2020-11-28 03:11:32,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-28 03:11:32,229 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-11-28 03:11:32,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:32,231 INFO L225 Difference]: With dead ends: 576 [2020-11-28 03:11:32,231 INFO L226 Difference]: Without dead ends: 424 [2020-11-28 03:11:32,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2020-11-28 03:11:32,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-11-28 03:11:32,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 158. [2020-11-28 03:11:32,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-11-28 03:11:32,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 202 transitions. [2020-11-28 03:11:32,267 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 202 transitions. Word has length 34 [2020-11-28 03:11:32,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:32,268 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 202 transitions. [2020-11-28 03:11:32,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:11:32,268 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 202 transitions. [2020-11-28 03:11:32,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-28 03:11:32,269 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:32,269 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] [2020-11-28 03:11:32,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:11:32,269 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:32,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:32,270 INFO L82 PathProgramCache]: Analyzing trace with hash 977354617, now seen corresponding path program 1 times [2020-11-28 03:11:32,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:32,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268955941] [2020-11-28 03:11:32,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:32,382 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:32,457 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:32,541 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:11:32,541 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:11:32,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:11:32,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:11:32 BoogieIcfgContainer [2020-11-28 03:11:32,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:11:32,732 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:11:32,732 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:11:32,732 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:11:32,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:29" (3/4) ... [2020-11-28 03:11:32,734 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:11:32,873 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4dba7dd9-f6ed-4eea-b08c-a2f13d6ff75f/bin/uautomizer/witness.graphml [2020-11-28 03:11:32,873 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:11:32,875 INFO L168 Benchmark]: Toolchain (without parser) took 5456.31 ms. Allocated memory was 96.5 MB in the beginning and 155.2 MB in the end (delta: 58.7 MB). Free memory was 61.6 MB in the beginning and 75.6 MB in the end (delta: -14.0 MB). Peak memory consumption was 43.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:32,875 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory was 69.8 MB in the beginning and 69.7 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:32,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 624.72 ms. Allocated memory is still 96.5 MB. Free memory was 61.3 MB in the beginning and 63.4 MB in the end (delta: -2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:32,877 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.38 ms. Allocated memory is still 96.5 MB. Free memory was 63.4 MB in the beginning and 60.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:32,877 INFO L168 Benchmark]: Boogie Preprocessor took 70.54 ms. Allocated memory is still 96.5 MB. Free memory was 60.1 MB in the beginning and 58.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:32,877 INFO L168 Benchmark]: RCFGBuilder took 1185.27 ms. Allocated memory is still 96.5 MB. Free memory was 58.0 MB in the beginning and 41.8 MB in the end (delta: 16.3 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:32,878 INFO L168 Benchmark]: TraceAbstraction took 3321.46 ms. Allocated memory was 96.5 MB in the beginning and 155.2 MB in the end (delta: 58.7 MB). Free memory was 41.2 MB in the beginning and 94.5 MB in the end (delta: -53.3 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:32,878 INFO L168 Benchmark]: Witness Printer took 141.77 ms. Allocated memory is still 155.2 MB. Free memory was 94.5 MB in the beginning and 75.6 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:32,880 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory was 69.8 MB in the beginning and 69.7 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 624.72 ms. Allocated memory is still 96.5 MB. Free memory was 61.3 MB in the beginning and 63.4 MB in the end (delta: -2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.38 ms. Allocated memory is still 96.5 MB. Free memory was 63.4 MB in the beginning and 60.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.54 ms. Allocated memory is still 96.5 MB. Free memory was 60.1 MB in the beginning and 58.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1185.27 ms. Allocated memory is still 96.5 MB. Free memory was 58.0 MB in the beginning and 41.8 MB in the end (delta: 16.3 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3321.46 ms. Allocated memory was 96.5 MB in the beginning and 155.2 MB in the end (delta: 58.7 MB). Free memory was 41.2 MB in the beginning and 94.5 MB in the end (delta: -53.3 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Witness Printer took 141.77 ms. Allocated memory is still 155.2 MB. Free memory was 94.5 MB in the beginning and 75.6 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L482] int waterLevel = 1; [L483] int methaneLevelCritical = 0; [L580] int pumpRunning = 0; [L581] int systemActive = 1; [L751] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] int retValue_acc ; [L828] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L876] int retValue_acc ; [L879] retValue_acc = 1 [L880] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L834] tmp = valid_product() [L836] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L422] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L430] tmp = __VERIFIER_nondet_int() [L432] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L500] COND TRUE waterLevel < 2 [L501] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L588] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND TRUE \read(systemActive) [L617] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] COND TRUE ! pumpRunning [L732] int retValue_acc ; [L733] int tmp ; [L734] int tmp___0 ; [L562] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L565] COND FALSE !(waterLevel < 2) [L569] retValue_acc = 0 [L570] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] tmp = isHighWaterSensorDry() [L740] COND FALSE !(\read(tmp)) [L743] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L745] retValue_acc = tmp___0 [L746] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] tmp = isHighWaterLevel() [L624] COND TRUE \read(tmp) [L651] int tmp ; [L676] int retValue_acc ; [L521] int retValue_acc ; [L524] retValue_acc = methaneLevelCritical [L525] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] tmp = isMethaneAlarm() [L657] COND FALSE !(\read(tmp)) [L645] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L895] int tmp ; [L896] int tmp___0 ; [L521] int retValue_acc ; [L524] retValue_acc = methaneLevelCritical [L525] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L900] tmp = isMethaneLevelCritical() [L902] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L422] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L424] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L430] tmp = __VERIFIER_nondet_int() [L432] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L512] COND FALSE !(\read(methaneLevelCritical)) [L515] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L588] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L488] COND TRUE waterLevel > 0 [L489] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L595] COND TRUE \read(systemActive) [L617] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L620] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L895] int tmp ; [L896] int tmp___0 ; [L521] int retValue_acc ; [L524] retValue_acc = methaneLevelCritical [L525] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] tmp = isMethaneLevelCritical() [L902] COND TRUE \read(tmp) [L687] int retValue_acc ; [L690] retValue_acc = pumpRunning [L691] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L904] tmp___0 = isPumpRunning() [L906] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec1_product41.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 90 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.0s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 793 SDtfs, 1070 SDslu, 1320 SDs, 0 SdLazy, 193 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 674 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 14835 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...