./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product38.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_8b58ad3e-a67c-4497-808d-474430ae4390/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8b58ad3e-a67c-4497-808d-474430ae4390/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8b58ad3e-a67c-4497-808d-474430ae4390/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8b58ad3e-a67c-4497-808d-474430ae4390/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8b58ad3e-a67c-4497-808d-474430ae4390/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8b58ad3e-a67c-4497-808d-474430ae4390/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 7872b879cd758228927f78edb0db1dba14599e51 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 [2020-11-30 01:02:54,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:02:54,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:02:54,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:02:54,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:02:54,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:02:54,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:02:54,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:02:54,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:02:54,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:02:54,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:02:54,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:02:54,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:02:54,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:02:54,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:02:54,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:02:54,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:02:54,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:02:54,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:02:54,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:02:55,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:02:55,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:02:55,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:02:55,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:02:55,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:02:55,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:02:55,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:02:55,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:02:55,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:02:55,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:02:55,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:02:55,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:02:55,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:02:55,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:02:55,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:02:55,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:02:55,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:02:55,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:02:55,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:02:55,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:02:55,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:02:55,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8b58ad3e-a67c-4497-808d-474430ae4390/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:02:55,091 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:02:55,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:02:55,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:02:55,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:02:55,094 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:02:55,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:02:55,095 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:02:55,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:02:55,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:02:55,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:02:55,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:02:55,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:02:55,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:02:55,097 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:02:55,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:02:55,098 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:02:55,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:02:55,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:02:55,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:02:55,099 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:02:55,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:02:55,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:02:55,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:02:55,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:02:55,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:02:55,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:02:55,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:02:55,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:02:55,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:02:55,102 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_8b58ad3e-a67c-4497-808d-474430ae4390/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8b58ad3e-a67c-4497-808d-474430ae4390/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7872b879cd758228927f78edb0db1dba14599e51 [2020-11-30 01:02:55,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:02:55,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:02:55,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:02:55,475 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:02:55,478 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:02:55,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8b58ad3e-a67c-4497-808d-474430ae4390/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2020-11-30 01:02:55,568 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b58ad3e-a67c-4497-808d-474430ae4390/bin/uautomizer/data/c80503076/2b3e01d4504d474db4ee4128cf84fa63/FLAGe68efb63f [2020-11-30 01:02:56,267 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:02:56,268 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8b58ad3e-a67c-4497-808d-474430ae4390/sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2020-11-30 01:02:56,290 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b58ad3e-a67c-4497-808d-474430ae4390/bin/uautomizer/data/c80503076/2b3e01d4504d474db4ee4128cf84fa63/FLAGe68efb63f [2020-11-30 01:02:56,532 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8b58ad3e-a67c-4497-808d-474430ae4390/bin/uautomizer/data/c80503076/2b3e01d4504d474db4ee4128cf84fa63 [2020-11-30 01:02:56,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:02:56,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:02:56,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:56,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:02:56,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:02:56,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:56" (1/1) ... [2020-11-30 01:02:56,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5548d069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:56, skipping insertion in model container [2020-11-30 01:02:56,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:56" (1/1) ... [2020-11-30 01:02:56,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:02:56,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:02:57,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:57,161 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:02:57,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:57,319 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:02:57,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:57 WrapperNode [2020-11-30 01:02:57,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:57,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:57,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:02:57,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:02:57,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:57" (1/1) ... [2020-11-30 01:02:57,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:57" (1/1) ... [2020-11-30 01:02:57,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:57,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:02:57,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:02:57,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:02:57,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:57" (1/1) ... [2020-11-30 01:02:57,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:57" (1/1) ... [2020-11-30 01:02:57,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:57" (1/1) ... [2020-11-30 01:02:57,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:57" (1/1) ... [2020-11-30 01:02:57,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:57" (1/1) ... [2020-11-30 01:02:57,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:57" (1/1) ... [2020-11-30 01:02:57,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:57" (1/1) ... [2020-11-30 01:02:57,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:02:57,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:02:57,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:02:57,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:02:57,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b58ad3e-a67c-4497-808d-474430ae4390/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 [2020-11-30 01:02:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:02:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:02:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:02:57,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:02:58,964 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:02:58,965 INFO L298 CfgBuilder]: Removed 164 assume(true) statements. [2020-11-30 01:02:58,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:58 BoogieIcfgContainer [2020-11-30 01:02:58,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:02:58,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:02:58,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:02:58,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:02:58,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:02:56" (1/3) ... [2020-11-30 01:02:58,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7863fa2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:02:58, skipping insertion in model container [2020-11-30 01:02:58,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:57" (2/3) ... [2020-11-30 01:02:58,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7863fa2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:02:58, skipping insertion in model container [2020-11-30 01:02:58,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:58" (3/3) ... [2020-11-30 01:02:58,979 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product38.cil.c [2020-11-30 01:02:58,993 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:02:58,999 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-30 01:02:59,011 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-30 01:02:59,045 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:02:59,045 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:02:59,045 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:02:59,045 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:02:59,046 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:02:59,046 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:02:59,046 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:02:59,046 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:02:59,067 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-11-30 01:02:59,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:02:59,075 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:59,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:59,077 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:59,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:59,085 INFO L82 PathProgramCache]: Analyzing trace with hash 402182137, now seen corresponding path program 1 times [2020-11-30 01:02:59,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:59,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576132368] [2020-11-30 01:02:59,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:59,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:59,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576132368] [2020-11-30 01:02:59,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:59,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:02:59,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921614465] [2020-11-30 01:02:59,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:02:59,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:59,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:02:59,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:02:59,473 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 2 states. [2020-11-30 01:02:59,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:59,512 INFO L93 Difference]: Finished difference Result 219 states and 332 transitions. [2020-11-30 01:02:59,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:02:59,514 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-30 01:02:59,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:59,528 INFO L225 Difference]: With dead ends: 219 [2020-11-30 01:02:59,528 INFO L226 Difference]: Without dead ends: 107 [2020-11-30 01:02:59,533 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 [2020-11-30 01:02:59,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-11-30 01:02:59,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-11-30 01:02:59,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-30 01:02:59,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2020-11-30 01:02:59,590 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 16 [2020-11-30 01:02:59,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:59,591 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-11-30 01:02:59,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:02:59,593 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2020-11-30 01:02:59,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:02:59,598 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:59,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:59,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:02:59,600 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:59,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:59,603 INFO L82 PathProgramCache]: Analyzing trace with hash -644574760, now seen corresponding path program 1 times [2020-11-30 01:02:59,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:59,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656601347] [2020-11-30 01:02:59,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:59,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:59,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656601347] [2020-11-30 01:02:59,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:59,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:02:59,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174162640] [2020-11-30 01:02:59,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:02:59,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:59,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:02:59,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:02:59,802 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand 3 states. [2020-11-30 01:02:59,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:59,822 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2020-11-30 01:02:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:02:59,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-30 01:02:59,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:59,828 INFO L225 Difference]: With dead ends: 107 [2020-11-30 01:02:59,828 INFO L226 Difference]: Without dead ends: 45 [2020-11-30 01:02:59,830 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 [2020-11-30 01:02:59,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-30 01:02:59,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-30 01:02:59,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-30 01:02:59,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2020-11-30 01:02:59,850 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 17 [2020-11-30 01:02:59,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:59,851 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2020-11-30 01:02:59,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:02:59,852 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2020-11-30 01:02:59,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 01:02:59,856 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:59,856 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] [2020-11-30 01:02:59,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:02:59,858 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:59,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:59,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1939738244, now seen corresponding path program 1 times [2020-11-30 01:02:59,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:59,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326707864] [2020-11-30 01:02:59,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:00,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:00,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326707864] [2020-11-30 01:03:00,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:03:00,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:03:00,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724819766] [2020-11-30 01:03:00,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:03:00,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:03:00,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:03:00,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:03:00,029 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand 3 states. [2020-11-30 01:03:00,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:03:00,078 INFO L93 Difference]: Finished difference Result 84 states and 124 transitions. [2020-11-30 01:03:00,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:03:00,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-30 01:03:00,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:03:00,086 INFO L225 Difference]: With dead ends: 84 [2020-11-30 01:03:00,088 INFO L226 Difference]: Without dead ends: 45 [2020-11-30 01:03:00,089 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 [2020-11-30 01:03:00,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-30 01:03:00,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-30 01:03:00,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-30 01:03:00,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2020-11-30 01:03:00,106 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 22 [2020-11-30 01:03:00,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:03:00,107 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2020-11-30 01:03:00,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:03:00,108 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-11-30 01:03:00,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 01:03:00,111 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:03:00,111 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] [2020-11-30 01:03:00,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:03:00,112 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:03:00,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:03:00,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1547834963, now seen corresponding path program 1 times [2020-11-30 01:03:00,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:03:00,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106252943] [2020-11-30 01:03:00,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:03:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:00,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:00,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106252943] [2020-11-30 01:03:00,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:03:00,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:03:00,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190268305] [2020-11-30 01:03:00,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:03:00,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:03:00,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:03:00,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:03:00,220 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 3 states. [2020-11-30 01:03:00,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:03:00,299 INFO L93 Difference]: Finished difference Result 105 states and 152 transitions. [2020-11-30 01:03:00,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:03:00,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-30 01:03:00,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:03:00,301 INFO L225 Difference]: With dead ends: 105 [2020-11-30 01:03:00,301 INFO L226 Difference]: Without dead ends: 66 [2020-11-30 01:03:00,302 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 [2020-11-30 01:03:00,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-30 01:03:00,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2020-11-30 01:03:00,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-11-30 01:03:00,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2020-11-30 01:03:00,318 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 24 [2020-11-30 01:03:00,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:03:00,319 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2020-11-30 01:03:00,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:03:00,319 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2020-11-30 01:03:00,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-30 01:03:00,320 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:03:00,320 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] [2020-11-30 01:03:00,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:03:00,321 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:03:00,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:03:00,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1827782978, now seen corresponding path program 1 times [2020-11-30 01:03:00,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:03:00,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72408835] [2020-11-30 01:03:00,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:03:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:00,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:00,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72408835] [2020-11-30 01:03:00,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:03:00,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:03:00,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778561492] [2020-11-30 01:03:00,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:03:00,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:03:00,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:03:00,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:03:00,482 INFO L87 Difference]: Start difference. First operand 64 states and 90 transitions. Second operand 5 states. [2020-11-30 01:03:00,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:03:00,622 INFO L93 Difference]: Finished difference Result 171 states and 239 transitions. [2020-11-30 01:03:00,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:03:00,622 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-30 01:03:00,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:03:00,624 INFO L225 Difference]: With dead ends: 171 [2020-11-30 01:03:00,624 INFO L226 Difference]: Without dead ends: 113 [2020-11-30 01:03:00,625 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 [2020-11-30 01:03:00,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-30 01:03:00,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 70. [2020-11-30 01:03:00,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-11-30 01:03:00,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2020-11-30 01:03:00,641 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 30 [2020-11-30 01:03:00,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:03:00,641 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2020-11-30 01:03:00,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:03:00,642 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2020-11-30 01:03:00,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-30 01:03:00,647 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:03:00,647 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] [2020-11-30 01:03:00,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:03:00,647 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:03:00,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:03:00,649 INFO L82 PathProgramCache]: Analyzing trace with hash 834728065, now seen corresponding path program 1 times [2020-11-30 01:03:00,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:03:00,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379994891] [2020-11-30 01:03:00,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:03:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:00,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:00,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379994891] [2020-11-30 01:03:00,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:03:00,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:03:00,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993553547] [2020-11-30 01:03:00,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:03:00,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:03:00,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:03:00,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:03:00,809 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand 7 states. [2020-11-30 01:03:01,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:03:01,135 INFO L93 Difference]: Finished difference Result 447 states and 632 transitions. [2020-11-30 01:03:01,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-30 01:03:01,136 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-11-30 01:03:01,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:03:01,139 INFO L225 Difference]: With dead ends: 447 [2020-11-30 01:03:01,140 INFO L226 Difference]: Without dead ends: 383 [2020-11-30 01:03:01,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-11-30 01:03:01,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2020-11-30 01:03:01,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 169. [2020-11-30 01:03:01,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-11-30 01:03:01,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 229 transitions. [2020-11-30 01:03:01,184 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 229 transitions. Word has length 30 [2020-11-30 01:03:01,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:03:01,188 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 229 transitions. [2020-11-30 01:03:01,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:03:01,189 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 229 transitions. [2020-11-30 01:03:01,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-30 01:03:01,195 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:03:01,195 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] [2020-11-30 01:03:01,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:03:01,196 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:03:01,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:03:01,197 INFO L82 PathProgramCache]: Analyzing trace with hash 938936726, now seen corresponding path program 1 times [2020-11-30 01:03:01,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:03:01,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776195281] [2020-11-30 01:03:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:03:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:01,295 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 01:03:01,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776195281] [2020-11-30 01:03:01,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:03:01,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:03:01,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372578272] [2020-11-30 01:03:01,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:03:01,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:03:01,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:03:01,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:03:01,297 INFO L87 Difference]: Start difference. First operand 169 states and 229 transitions. Second operand 5 states. [2020-11-30 01:03:01,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:03:01,417 INFO L93 Difference]: Finished difference Result 399 states and 539 transitions. [2020-11-30 01:03:01,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:03:01,418 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-11-30 01:03:01,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:03:01,420 INFO L225 Difference]: With dead ends: 399 [2020-11-30 01:03:01,420 INFO L226 Difference]: Without dead ends: 236 [2020-11-30 01:03:01,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:03:01,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-11-30 01:03:01,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 148. [2020-11-30 01:03:01,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-11-30 01:03:01,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2020-11-30 01:03:01,446 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 48 [2020-11-30 01:03:01,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:03:01,446 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2020-11-30 01:03:01,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:03:01,446 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2020-11-30 01:03:01,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-30 01:03:01,447 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:03:01,447 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] [2020-11-30 01:03:01,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 01:03:01,448 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:03:01,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:03:01,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1993655634, now seen corresponding path program 1 times [2020-11-30 01:03:01,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:03:01,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441074128] [2020-11-30 01:03:01,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:03:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:01,551 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 01:03:01,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441074128] [2020-11-30 01:03:01,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:03:01,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:03:01,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959772625] [2020-11-30 01:03:01,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:03:01,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:03:01,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:03:01,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:03:01,553 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand 6 states. [2020-11-30 01:03:01,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:03:01,743 INFO L93 Difference]: Finished difference Result 766 states and 1050 transitions. [2020-11-30 01:03:01,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-30 01:03:01,746 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-11-30 01:03:01,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:03:01,750 INFO L225 Difference]: With dead ends: 766 [2020-11-30 01:03:01,750 INFO L226 Difference]: Without dead ends: 624 [2020-11-30 01:03:01,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:03:01,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-11-30 01:03:01,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 288. [2020-11-30 01:03:01,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-11-30 01:03:01,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 378 transitions. [2020-11-30 01:03:01,799 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 378 transitions. Word has length 49 [2020-11-30 01:03:01,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:03:01,801 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 378 transitions. [2020-11-30 01:03:01,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:03:01,801 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 378 transitions. [2020-11-30 01:03:01,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-30 01:03:01,803 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:03:01,804 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] [2020-11-30 01:03:01,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 01:03:01,804 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:03:01,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:03:01,805 INFO L82 PathProgramCache]: Analyzing trace with hash -2143268586, now seen corresponding path program 1 times [2020-11-30 01:03:01,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:03:01,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005284916] [2020-11-30 01:03:01,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:03:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:01,940 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:01,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005284916] [2020-11-30 01:03:01,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831448626] [2020-11-30 01:03:01,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b58ad3e-a67c-4497-808d-474430ae4390/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 [2020-11-30 01:03:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:02,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 01:03:02,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:03:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:02,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:03:02,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-11-30 01:03:02,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344073287] [2020-11-30 01:03:02,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:03:02,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:03:02,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:03:02,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:03:02,220 INFO L87 Difference]: Start difference. First operand 288 states and 378 transitions. Second operand 6 states. [2020-11-30 01:03:02,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:03:02,714 INFO L93 Difference]: Finished difference Result 840 states and 1119 transitions. [2020-11-30 01:03:02,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:03:02,716 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-11-30 01:03:02,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:03:02,722 INFO L225 Difference]: With dead ends: 840 [2020-11-30 01:03:02,722 INFO L226 Difference]: Without dead ends: 606 [2020-11-30 01:03:02,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-11-30 01:03:02,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-11-30 01:03:02,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 374. [2020-11-30 01:03:02,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-11-30 01:03:02,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 486 transitions. [2020-11-30 01:03:02,783 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 486 transitions. Word has length 50 [2020-11-30 01:03:02,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:03:02,783 INFO L481 AbstractCegarLoop]: Abstraction has 374 states and 486 transitions. [2020-11-30 01:03:02,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:03:02,783 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 486 transitions. [2020-11-30 01:03:02,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-11-30 01:03:02,791 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:03:02,791 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] [2020-11-30 01:03:03,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-11-30 01:03:03,008 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:03:03,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:03:03,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1661545208, now seen corresponding path program 2 times [2020-11-30 01:03:03,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:03:03,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268115427] [2020-11-30 01:03:03,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:03:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:03:03,115 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:03:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:03:03,212 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:03:03,312 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:03:03,313 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:03:03,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 01:03:03,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:03:03 BoogieIcfgContainer [2020-11-30 01:03:03,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:03:03,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:03:03,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:03:03,573 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:03:03,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:58" (3/4) ... [2020-11-30 01:03:03,575 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:03:03,745 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8b58ad3e-a67c-4497-808d-474430ae4390/bin/uautomizer/witness.graphml [2020-11-30 01:03:03,747 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:03:03,749 INFO L168 Benchmark]: Toolchain (without parser) took 7210.37 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 65.8 MB in the beginning and 91.4 MB in the end (delta: -25.7 MB). Peak memory consumption was 76.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:03,750 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 96.5 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:03:03,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.93 ms. Allocated memory is still 96.5 MB. Free memory was 65.5 MB in the beginning and 63.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:03,751 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.20 ms. Allocated memory is still 96.5 MB. Free memory was 63.0 MB in the beginning and 59.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:03,751 INFO L168 Benchmark]: Boogie Preprocessor took 79.30 ms. Allocated memory is still 96.5 MB. Free memory was 59.2 MB in the beginning and 56.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:03,752 INFO L168 Benchmark]: RCFGBuilder took 1478.06 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 56.8 MB in the beginning and 86.8 MB in the end (delta: -30.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:03,752 INFO L168 Benchmark]: TraceAbstraction took 4602.27 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 86.8 MB in the beginning and 39.7 MB in the end (delta: 47.1 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:03,753 INFO L168 Benchmark]: Witness Printer took 175.20 ms. Allocated memory is still 142.6 MB. Free memory was 39.7 MB in the beginning and 91.4 MB in the end (delta: -51.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:03,755 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 96.5 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 778.93 ms. Allocated memory is still 96.5 MB. Free memory was 65.5 MB in the beginning and 63.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.20 ms. Allocated memory is still 96.5 MB. Free memory was 63.0 MB in the beginning and 59.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.30 ms. Allocated memory is still 96.5 MB. Free memory was 59.2 MB in the beginning and 56.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1478.06 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 56.8 MB in the beginning and 86.8 MB in the end (delta: -30.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4602.27 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 86.8 MB in the beginning and 39.7 MB in the end (delta: 47.1 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.1 GB. * Witness Printer took 175.20 ms. Allocated memory is still 142.6 MB. Free memory was 39.7 MB in the beginning and 91.4 MB in the end (delta: -51.7 MB). Peak memory consumption was 2.1 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; [L151] int waterLevel = 1; [L152] int methaneLevelCritical = 0; [L351] int pumpRunning = 0; [L352] int systemActive = 1; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)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] [L929] int retValue_acc ; [L932] retValue_acc = 1 [L933] 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] [L283] int splverifierCounter ; [L284] int tmp ; [L285] int tmp___0 ; [L286] int tmp___1 ; [L287] int tmp___2 ; [L290] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L292] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L294] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L300] tmp = __VERIFIER_nondet_int() [L302] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L169] COND TRUE waterLevel < 2 [L170] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L310] tmp___0 = __VERIFIER_nondet_int() [L312] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L320] tmp___2 = __VERIFIER_nondet_int() [L322] COND TRUE \read(tmp___2) [L532] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L358] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L365] COND TRUE \read(systemActive) [L413] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L416] COND FALSE !(\read(pumpRunning)) [L387] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L390] COND TRUE ! pumpRunning [L510] int retValue_acc ; [L511] int tmp ; [L512] int tmp___0 ; [L231] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L234] COND FALSE !(waterLevel < 2) [L238] retValue_acc = 0 [L239] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L516] tmp = isHighWaterSensorDry() [L518] COND FALSE !(\read(tmp)) [L521] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L523] retValue_acc = tmp___0 [L524] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L392] tmp = isHighWaterLevel() [L394] COND TRUE \read(tmp) [L441] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L256] int tmp ; [L257] int tmp___0 ; [L222] int retValue_acc ; [L225] retValue_acc = waterLevel [L226] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L261] tmp = getWaterLevel() [L263] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L292] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L294] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L300] tmp = __VERIFIER_nondet_int() [L302] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L310] tmp___0 = __VERIFIER_nondet_int() [L312] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L320] tmp___2 = __VERIFIER_nondet_int() [L322] COND TRUE \read(tmp___2) [L532] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L358] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L157] COND TRUE waterLevel > 0 [L158] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L365] COND TRUE \read(systemActive) [L413] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L416] COND TRUE \read(pumpRunning) [L454] int retValue_acc ; [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L458] retValue_acc = isMethaneLevelCritical() [L460] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L418] tmp = isMethaneAlarm() [L420] COND FALSE !(\read(tmp)) [L387] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L390] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L256] int tmp ; [L257] int tmp___0 ; [L222] int retValue_acc ; [L225] retValue_acc = waterLevel [L226] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L261] tmp = getWaterLevel() [L263] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L292] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L294] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L300] tmp = __VERIFIER_nondet_int() [L302] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L310] tmp___0 = __VERIFIER_nondet_int() [L312] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L320] tmp___2 = __VERIFIER_nondet_int() [L322] COND TRUE \read(tmp___2) [L532] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L358] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L157] COND TRUE waterLevel > 0 [L158] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L365] COND TRUE \read(systemActive) [L413] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L416] COND TRUE \read(pumpRunning) [L454] int retValue_acc ; [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L458] retValue_acc = isMethaneLevelCritical() [L460] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L418] tmp = isMethaneAlarm() [L420] COND FALSE !(\read(tmp)) [L387] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L390] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L256] int tmp ; [L257] int tmp___0 ; [L222] int retValue_acc ; [L225] retValue_acc = waterLevel [L226] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L261] tmp = getWaterLevel() [L263] COND TRUE tmp == 0 [L465] int retValue_acc ; [L468] retValue_acc = pumpRunning [L469] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L265] tmp___0 = isPumpRunning() [L267] 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_product38.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, 114 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.2s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 830 SDtfs, 1478 SDslu, 1486 SDs, 0 SdLazy, 239 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=374occurred 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 915 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 405 NumberOfCodeBlocks, 405 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 326 ConstructedInterpolants, 0 QuantifiedInterpolants, 25173 SizeOfPredicates, 4 NumberOfNonLiveVariables, 420 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 50/56 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...