./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product39.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_bc069408-15de-4a6d-bfa4-6f36b45eb451/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bc069408-15de-4a6d-bfa4-6f36b45eb451/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bc069408-15de-4a6d-bfa4-6f36b45eb451/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bc069408-15de-4a6d-bfa4-6f36b45eb451/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bc069408-15de-4a6d-bfa4-6f36b45eb451/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bc069408-15de-4a6d-bfa4-6f36b45eb451/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 5381b58f81d44aa70d19c6d31d0ce960b58130fb ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-29 20:17:26,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:17:26,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:17:26,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:17:26,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:17:26,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:17:26,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:17:26,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:17:26,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:17:26,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:17:26,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:17:26,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:17:26,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:17:26,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:17:26,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:17:26,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:17:26,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:17:26,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:17:26,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:17:26,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:17:26,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:17:26,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:17:26,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:17:26,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:17:26,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:17:26,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:17:26,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:17:26,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:17:26,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:17:26,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:17:26,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:17:26,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:17:26,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:17:26,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:17:26,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:17:26,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:17:26,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:17:26,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:17:26,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:17:26,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:17:26,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:17:26,579 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bc069408-15de-4a6d-bfa4-6f36b45eb451/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:17:26,642 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:17:26,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:17:26,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:17:26,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:17:26,646 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:17:26,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:17:26,647 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:17:26,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:17:26,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:17:26,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:17:26,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:17:26,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:17:26,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:17:26,650 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:17:26,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:17:26,651 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:17:26,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:17:26,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:17:26,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:17:26,652 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:17:26,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:17:26,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:17:26,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:17:26,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:17:26,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:17:26,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:17:26,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:17:26,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:17:26,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:17:26,655 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_bc069408-15de-4a6d-bfa4-6f36b45eb451/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bc069408-15de-4a6d-bfa4-6f36b45eb451/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5381b58f81d44aa70d19c6d31d0ce960b58130fb [2020-11-29 20:17:27,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:17:27,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:17:27,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:17:27,040 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:17:27,042 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:17:27,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bc069408-15de-4a6d-bfa4-6f36b45eb451/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2020-11-29 20:17:27,170 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc069408-15de-4a6d-bfa4-6f36b45eb451/bin/uautomizer/data/a89b2ff54/501caffadf1941fc8a7e7f4a288b994a/FLAG76270fd74 [2020-11-29 20:17:27,785 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:17:27,785 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bc069408-15de-4a6d-bfa4-6f36b45eb451/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2020-11-29 20:17:27,799 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc069408-15de-4a6d-bfa4-6f36b45eb451/bin/uautomizer/data/a89b2ff54/501caffadf1941fc8a7e7f4a288b994a/FLAG76270fd74 [2020-11-29 20:17:28,062 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bc069408-15de-4a6d-bfa4-6f36b45eb451/bin/uautomizer/data/a89b2ff54/501caffadf1941fc8a7e7f4a288b994a [2020-11-29 20:17:28,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:17:28,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:17:28,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:17:28,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:17:28,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:17:28,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:17:28" (1/1) ... [2020-11-29 20:17:28,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23022493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:28, skipping insertion in model container [2020-11-29 20:17:28,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:17:28" (1/1) ... [2020-11-29 20:17:28,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:17:28,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:17:28,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:17:28,611 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:17:28,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:17:28,820 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:17:28,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:28 WrapperNode [2020-11-29 20:17:28,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:17:28,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:17:28,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:17:28,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:17:28,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:28" (1/1) ... [2020-11-29 20:17:28,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:28" (1/1) ... [2020-11-29 20:17:28,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:17:28,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:17:28,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:17:28,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:17:28,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:28" (1/1) ... [2020-11-29 20:17:28,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:28" (1/1) ... [2020-11-29 20:17:28,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:28" (1/1) ... [2020-11-29 20:17:28,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:28" (1/1) ... [2020-11-29 20:17:28,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:28" (1/1) ... [2020-11-29 20:17:29,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:28" (1/1) ... [2020-11-29 20:17:29,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:28" (1/1) ... [2020-11-29 20:17:29,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:17:29,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:17:29,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:17:29,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:17:29,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc069408-15de-4a6d-bfa4-6f36b45eb451/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:17:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:17:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:17:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:17:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:17:30,326 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:17:30,327 INFO L298 CfgBuilder]: Removed 172 assume(true) statements. [2020-11-29 20:17:30,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:17:30 BoogieIcfgContainer [2020-11-29 20:17:30,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:17:30,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:17:30,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:17:30,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:17:30,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:17:28" (1/3) ... [2020-11-29 20:17:30,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a553187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:17:30, skipping insertion in model container [2020-11-29 20:17:30,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:28" (2/3) ... [2020-11-29 20:17:30,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a553187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:17:30, skipping insertion in model container [2020-11-29 20:17:30,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:17:30" (3/3) ... [2020-11-29 20:17:30,340 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2020-11-29 20:17:30,353 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:17:30,359 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 20:17:30,373 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 20:17:30,417 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:17:30,417 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:17:30,417 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:17:30,417 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:17:30,418 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:17:30,418 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:17:30,418 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:17:30,419 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:17:30,447 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2020-11-29 20:17:30,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 20:17:30,456 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:30,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:30,457 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:30,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:30,472 INFO L82 PathProgramCache]: Analyzing trace with hash 73695466, now seen corresponding path program 1 times [2020-11-29 20:17:30,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:30,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724347521] [2020-11-29 20:17:30,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:30,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:30,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724347521] [2020-11-29 20:17:30,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:30,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:17:30,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920477586] [2020-11-29 20:17:30,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 20:17:30,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:30,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 20:17:30,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:17:30,815 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 2 states. [2020-11-29 20:17:30,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:30,853 INFO L93 Difference]: Finished difference Result 235 states and 356 transitions. [2020-11-29 20:17:30,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:17:30,854 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-29 20:17:30,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:30,868 INFO L225 Difference]: With dead ends: 235 [2020-11-29 20:17:30,868 INFO L226 Difference]: Without dead ends: 115 [2020-11-29 20:17:30,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:17:30,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-29 20:17:30,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-29 20:17:30,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-29 20:17:30,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2020-11-29 20:17:30,927 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 18 [2020-11-29 20:17:30,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:30,928 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2020-11-29 20:17:30,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 20:17:30,928 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2020-11-29 20:17:30,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 20:17:30,934 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:30,935 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:30,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:17:30,936 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:30,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:30,939 INFO L82 PathProgramCache]: Analyzing trace with hash -837335287, now seen corresponding path program 1 times [2020-11-29 20:17:30,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:30,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373897779] [2020-11-29 20:17:30,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:31,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:31,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373897779] [2020-11-29 20:17:31,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:31,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:17:31,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141571247] [2020-11-29 20:17:31,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:17:31,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:31,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:31,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:31,090 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2020-11-29 20:17:31,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:31,114 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2020-11-29 20:17:31,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:31,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-29 20:17:31,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:31,116 INFO L225 Difference]: With dead ends: 115 [2020-11-29 20:17:31,117 INFO L226 Difference]: Without dead ends: 49 [2020-11-29 20:17:31,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:31,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-11-29 20:17:31,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-11-29 20:17:31,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-11-29 20:17:31,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2020-11-29 20:17:31,128 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2020-11-29 20:17:31,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:31,129 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2020-11-29 20:17:31,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:31,129 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2020-11-29 20:17:31,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 20:17:31,131 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:31,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:31,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:17:31,131 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:31,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:31,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1084287686, now seen corresponding path program 1 times [2020-11-29 20:17:31,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:31,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715594772] [2020-11-29 20:17:31,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:31,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:31,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715594772] [2020-11-29 20:17:31,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:31,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:17:31,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123664024] [2020-11-29 20:17:31,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:17:31,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:31,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:17:31,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:17:31,324 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 6 states. [2020-11-29 20:17:31,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:31,596 INFO L93 Difference]: Finished difference Result 160 states and 238 transitions. [2020-11-29 20:17:31,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:17:31,602 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-11-29 20:17:31,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:31,604 INFO L225 Difference]: With dead ends: 160 [2020-11-29 20:17:31,604 INFO L226 Difference]: Without dead ends: 117 [2020-11-29 20:17:31,605 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 [2020-11-29 20:17:31,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-11-29 20:17:31,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 70. [2020-11-29 20:17:31,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-11-29 20:17:31,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 103 transitions. [2020-11-29 20:17:31,631 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 103 transitions. Word has length 24 [2020-11-29 20:17:31,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:31,631 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 103 transitions. [2020-11-29 20:17:31,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:17:31,632 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2020-11-29 20:17:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 20:17:31,633 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:31,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:31,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:17:31,634 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:31,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:31,635 INFO L82 PathProgramCache]: Analyzing trace with hash -857120593, now seen corresponding path program 1 times [2020-11-29 20:17:31,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:31,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67926246] [2020-11-29 20:17:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:31,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:31,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67926246] [2020-11-29 20:17:31,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:31,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:17:31,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557466950] [2020-11-29 20:17:31,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:17:31,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:31,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:31,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:31,797 INFO L87 Difference]: Start difference. First operand 70 states and 103 transitions. Second operand 3 states. [2020-11-29 20:17:31,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:31,841 INFO L93 Difference]: Finished difference Result 157 states and 233 transitions. [2020-11-29 20:17:31,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:31,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-11-29 20:17:31,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:31,843 INFO L225 Difference]: With dead ends: 157 [2020-11-29 20:17:31,843 INFO L226 Difference]: Without dead ends: 93 [2020-11-29 20:17:31,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:31,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-11-29 20:17:31,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2020-11-29 20:17:31,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-11-29 20:17:31,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions. [2020-11-29 20:17:31,858 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 26 [2020-11-29 20:17:31,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:31,858 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 130 transitions. [2020-11-29 20:17:31,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:31,859 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2020-11-29 20:17:31,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 20:17:31,860 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:31,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:31,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 20:17:31,860 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:31,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:31,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1307189925, now seen corresponding path program 1 times [2020-11-29 20:17:31,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:31,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797712266] [2020-11-29 20:17:31,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:32,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:32,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797712266] [2020-11-29 20:17:32,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:32,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:17:32,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632057671] [2020-11-29 20:17:32,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:17:32,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:32,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:17:32,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:17:32,015 INFO L87 Difference]: Start difference. First operand 91 states and 130 transitions. Second operand 5 states. [2020-11-29 20:17:32,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:32,176 INFO L93 Difference]: Finished difference Result 474 states and 695 transitions. [2020-11-29 20:17:32,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 20:17:32,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-29 20:17:32,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:32,179 INFO L225 Difference]: With dead ends: 474 [2020-11-29 20:17:32,180 INFO L226 Difference]: Without dead ends: 389 [2020-11-29 20:17:32,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:17:32,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-11-29 20:17:32,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 156. [2020-11-29 20:17:32,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-11-29 20:17:32,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 218 transitions. [2020-11-29 20:17:32,229 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 218 transitions. Word has length 27 [2020-11-29 20:17:32,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:32,230 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 218 transitions. [2020-11-29 20:17:32,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:17:32,230 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 218 transitions. [2020-11-29 20:17:32,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 20:17:32,237 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:32,237 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] [2020-11-29 20:17:32,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 20:17:32,238 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:32,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:32,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1287513629, now seen corresponding path program 1 times [2020-11-29 20:17:32,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:32,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498787078] [2020-11-29 20:17:32,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:32,372 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:32,467 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:32,527 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:17:32,527 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 20:17:32,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 20:17:32,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:17:32 BoogieIcfgContainer [2020-11-29 20:17:32,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:17:32,671 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:17:32,671 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:17:32,678 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:17:32,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:17:30" (3/4) ... [2020-11-29 20:17:32,681 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 20:17:32,821 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bc069408-15de-4a6d-bfa4-6f36b45eb451/bin/uautomizer/witness.graphml [2020-11-29 20:17:32,821 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:17:32,828 INFO L168 Benchmark]: Toolchain (without parser) took 4755.88 ms. Allocated memory was 92.3 MB in the beginning and 146.8 MB in the end (delta: 54.5 MB). Free memory was 59.4 MB in the beginning and 109.2 MB in the end (delta: -49.8 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:17:32,829 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory was 48.4 MB in the beginning and 48.4 MB in the end (delta: 41.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:17:32,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 754.93 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 59.2 MB in the beginning and 87.7 MB in the end (delta: -28.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:17:32,831 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.33 ms. Allocated memory is still 121.6 MB. Free memory was 87.7 MB in the beginning and 84.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:17:32,831 INFO L168 Benchmark]: Boogie Preprocessor took 95.81 ms. Allocated memory is still 121.6 MB. Free memory was 84.1 MB in the beginning and 81.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:17:32,831 INFO L168 Benchmark]: RCFGBuilder took 1286.74 ms. Allocated memory is still 121.6 MB. Free memory was 81.4 MB in the beginning and 72.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:17:32,832 INFO L168 Benchmark]: TraceAbstraction took 2339.50 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 72.1 MB in the beginning and 120.7 MB in the end (delta: -48.6 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:17:32,833 INFO L168 Benchmark]: Witness Printer took 150.28 ms. Allocated memory is still 146.8 MB. Free memory was 120.7 MB in the beginning and 109.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:17:32,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory was 48.4 MB in the beginning and 48.4 MB in the end (delta: 41.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 754.93 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 59.2 MB in the beginning and 87.7 MB in the end (delta: -28.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.33 ms. Allocated memory is still 121.6 MB. Free memory was 87.7 MB in the beginning and 84.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 95.81 ms. Allocated memory is still 121.6 MB. Free memory was 84.1 MB in the beginning and 81.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1286.74 ms. Allocated memory is still 121.6 MB. Free memory was 81.4 MB in the beginning and 72.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2339.50 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 72.1 MB in the beginning and 120.7 MB in the end (delta: -48.6 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.1 GB. * Witness Printer took 150.28 ms. Allocated memory is still 146.8 MB. Free memory was 120.7 MB in the beginning and 109.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 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: [L87] int waterLevel = 1; [L88] int methaneLevelCritical = 0; [L187] int pumpRunning = 0; [L188] int systemActive = 1; [L627] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L824] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L897] int retValue_acc ; [L898] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L904] tmp = valid_product() [L906] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L383] int splverifierCounter ; [L384] int tmp ; [L385] int tmp___0 ; [L386] int tmp___1 ; [L387] int tmp___2 ; [L390] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L392] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L394] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L400] tmp = __VERIFIER_nondet_int() [L402] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L105] COND TRUE waterLevel < 2 [L106] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L410] tmp___0 = __VERIFIER_nondet_int() [L412] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L420] tmp___2 = __VERIFIER_nondet_int() [L422] COND FALSE !(\read(tmp___2)) [L426] tmp___1 = __VERIFIER_nondet_int() [L428] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L369] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L376] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L195] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L202] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L921] int tmp ; [L922] int tmp___0 ; [L923] int tmp___1 ; [L126] int retValue_acc ; [L129] retValue_acc = methaneLevelCritical [L130] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L927] tmp = isMethaneLevelCritical() [L929] COND FALSE !(\read(tmp)) [L158] int retValue_acc ; [L161] retValue_acc = waterLevel [L162] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L933] tmp___0 = getWaterLevel() [L935] COND TRUE tmp___0 == 2 [L302] int retValue_acc ; [L305] retValue_acc = pumpRunning [L306] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L937] tmp___1 = isPumpRunning() [L939] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product39.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 122 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 493 SDtfs, 687 SDslu, 610 SDs, 0 SdLazy, 77 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=5, 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, 5 MinimizatonAttempts, 282 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5504 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...