./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.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_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/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 d04a081dc9d0da3f0fd6fd57a31d7ab84af864dd ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 19:15:10,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:15:10,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:15:10,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:15:10,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:15:10,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:15:10,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:15:10,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:15:10,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:15:10,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:15:10,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:15:10,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:15:10,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:15:10,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:15:10,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:15:10,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:15:10,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:15:10,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:15:10,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:15:10,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:15:10,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:15:11,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:15:11,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:15:11,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:15:11,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:15:11,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:15:11,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:15:11,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:15:11,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:15:11,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:15:11,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:15:11,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:15:11,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:15:11,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:15:11,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:15:11,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:15:11,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:15:11,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:15:11,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:15:11,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:15:11,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:15:11,036 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:15:11,063 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:15:11,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:15:11,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:15:11,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:15:11,066 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:15:11,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:15:11,066 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:15:11,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:15:11,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:15:11,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:15:11,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:15:11,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:15:11,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:15:11,068 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:15:11,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:15:11,069 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:15:11,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:15:11,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:15:11,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:15:11,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:15:11,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:15:11,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:15:11,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:15:11,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:15:11,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:15:11,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:15:11,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:15:11,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:15:11,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:15:11,073 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_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d04a081dc9d0da3f0fd6fd57a31d7ab84af864dd [2020-11-29 19:15:11,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:15:11,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:15:11,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:15:11,469 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:15:11,471 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:15:11,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2020-11-29 19:15:11,577 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/bin/uautomizer/data/ebfb6a025/a2d9cb17fc644a429be88dc85652bebb/FLAGcb3627222 [2020-11-29 19:15:12,217 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:15:12,218 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2020-11-29 19:15:12,235 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/bin/uautomizer/data/ebfb6a025/a2d9cb17fc644a429be88dc85652bebb/FLAGcb3627222 [2020-11-29 19:15:12,484 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/bin/uautomizer/data/ebfb6a025/a2d9cb17fc644a429be88dc85652bebb [2020-11-29 19:15:12,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:15:12,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:15:12,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:15:12,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:15:12,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:15:12,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:15:12" (1/1) ... [2020-11-29 19:15:12,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8bf1422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:12, skipping insertion in model container [2020-11-29 19:15:12,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:15:12" (1/1) ... [2020-11-29 19:15:12,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:15:12,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:15:12,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:15:12,985 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:15:13,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:15:13,127 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:15:13,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:13 WrapperNode [2020-11-29 19:15:13,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:15:13,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:15:13,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:15:13,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:15:13,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:13" (1/1) ... [2020-11-29 19:15:13,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:13" (1/1) ... [2020-11-29 19:15:13,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:15:13,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:15:13,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:15:13,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:15:13,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:13" (1/1) ... [2020-11-29 19:15:13,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:13" (1/1) ... [2020-11-29 19:15:13,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:13" (1/1) ... [2020-11-29 19:15:13,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:13" (1/1) ... [2020-11-29 19:15:13,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:13" (1/1) ... [2020-11-29 19:15:13,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:13" (1/1) ... [2020-11-29 19:15:13,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:13" (1/1) ... [2020-11-29 19:15:13,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:15:13,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:15:13,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:15:13,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:15:13,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/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 19:15:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:15:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:15:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:15:13,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:15:14,576 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:15:14,576 INFO L298 CfgBuilder]: Removed 172 assume(true) statements. [2020-11-29 19:15:14,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:15:14 BoogieIcfgContainer [2020-11-29 19:15:14,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:15:14,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:15:14,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:15:14,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:15:14,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:15:12" (1/3) ... [2020-11-29 19:15:14,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4e8195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:15:14, skipping insertion in model container [2020-11-29 19:15:14,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:13" (2/3) ... [2020-11-29 19:15:14,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4e8195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:15:14, skipping insertion in model container [2020-11-29 19:15:14,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:15:14" (3/3) ... [2020-11-29 19:15:14,593 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2020-11-29 19:15:14,613 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:15:14,619 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 19:15:14,640 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 19:15:14,684 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:15:14,685 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:15:14,685 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:15:14,685 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:15:14,685 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:15:14,685 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:15:14,686 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:15:14,686 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:15:14,713 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-11-29 19:15:14,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 19:15:14,722 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:15:14,723 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 19:15:14,724 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:15:14,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:15:14,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1335483370, now seen corresponding path program 1 times [2020-11-29 19:15:14,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:15:14,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913691700] [2020-11-29 19:15:14,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:15:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:15:15,132 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 19:15:15,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913691700] [2020-11-29 19:15:15,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:15:15,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:15:15,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845836405] [2020-11-29 19:15:15,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:15:15,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:15:15,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:15:15,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:15:15,161 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-11-29 19:15:15,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:15:15,200 INFO L93 Difference]: Finished difference Result 223 states and 332 transitions. [2020-11-29 19:15:15,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:15:15,202 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-29 19:15:15,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:15:15,216 INFO L225 Difference]: With dead ends: 223 [2020-11-29 19:15:15,216 INFO L226 Difference]: Without dead ends: 109 [2020-11-29 19:15:15,221 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 19:15:15,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-29 19:15:15,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-29 19:15:15,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-29 19:15:15,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2020-11-29 19:15:15,270 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2020-11-29 19:15:15,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:15:15,271 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2020-11-29 19:15:15,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:15:15,271 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2020-11-29 19:15:15,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 19:15:15,273 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:15:15,273 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 19:15:15,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:15:15,274 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:15:15,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:15:15,275 INFO L82 PathProgramCache]: Analyzing trace with hash 2048453173, now seen corresponding path program 1 times [2020-11-29 19:15:15,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:15:15,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907093946] [2020-11-29 19:15:15,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:15:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:15:15,428 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 19:15:15,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907093946] [2020-11-29 19:15:15,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:15:15,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:15:15,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33477796] [2020-11-29 19:15:15,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:15:15,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:15:15,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:15:15,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:15:15,434 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 3 states. [2020-11-29 19:15:15,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:15:15,450 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2020-11-29 19:15:15,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:15:15,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-29 19:15:15,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:15:15,458 INFO L225 Difference]: With dead ends: 109 [2020-11-29 19:15:15,458 INFO L226 Difference]: Without dead ends: 47 [2020-11-29 19:15:15,459 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 19:15:15,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-29 19:15:15,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-29 19:15:15,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-29 19:15:15,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-11-29 19:15:15,470 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2020-11-29 19:15:15,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:15:15,470 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-11-29 19:15:15,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:15:15,471 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-11-29 19:15:15,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 19:15:15,472 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:15:15,473 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 19:15:15,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:15:15,473 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:15:15,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:15:15,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1149792188, now seen corresponding path program 1 times [2020-11-29 19:15:15,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:15:15,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130447226] [2020-11-29 19:15:15,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:15:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:15:15,648 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 19:15:15,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130447226] [2020-11-29 19:15:15,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:15:15,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:15:15,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153684265] [2020-11-29 19:15:15,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 19:15:15,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:15:15,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:15:15,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:15:15,657 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 6 states. [2020-11-29 19:15:15,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:15:15,940 INFO L93 Difference]: Finished difference Result 154 states and 226 transitions. [2020-11-29 19:15:15,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:15:15,943 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-11-29 19:15:15,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:15:15,946 INFO L225 Difference]: With dead ends: 154 [2020-11-29 19:15:15,946 INFO L226 Difference]: Without dead ends: 113 [2020-11-29 19:15:15,947 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 19:15:15,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-29 19:15:15,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 68. [2020-11-29 19:15:15,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-29 19:15:15,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2020-11-29 19:15:15,977 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 24 [2020-11-29 19:15:15,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:15:15,978 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2020-11-29 19:15:15,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 19:15:15,978 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2020-11-29 19:15:15,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 19:15:15,979 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:15:15,980 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 19:15:15,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 19:15:15,980 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:15:15,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:15:15,981 INFO L82 PathProgramCache]: Analyzing trace with hash 190951434, now seen corresponding path program 1 times [2020-11-29 19:15:15,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:15:15,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270437319] [2020-11-29 19:15:15,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:15:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:15:16,091 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 19:15:16,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270437319] [2020-11-29 19:15:16,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:15:16,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:15:16,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370686037] [2020-11-29 19:15:16,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:15:16,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:15:16,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:15:16,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:15:16,094 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 5 states. [2020-11-29 19:15:16,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:15:16,333 INFO L93 Difference]: Finished difference Result 376 states and 572 transitions. [2020-11-29 19:15:16,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 19:15:16,334 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-29 19:15:16,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:15:16,339 INFO L225 Difference]: With dead ends: 376 [2020-11-29 19:15:16,339 INFO L226 Difference]: Without dead ends: 314 [2020-11-29 19:15:16,341 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 19:15:16,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-11-29 19:15:16,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 124. [2020-11-29 19:15:16,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-11-29 19:15:16,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 179 transitions. [2020-11-29 19:15:16,382 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 179 transitions. Word has length 26 [2020-11-29 19:15:16,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:15:16,383 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 179 transitions. [2020-11-29 19:15:16,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:15:16,383 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 179 transitions. [2020-11-29 19:15:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 19:15:16,385 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:15:16,386 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 19:15:16,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 19:15:16,386 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:15:16,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:15:16,387 INFO L82 PathProgramCache]: Analyzing trace with hash -418085112, now seen corresponding path program 1 times [2020-11-29 19:15:16,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:15:16,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512100675] [2020-11-29 19:15:16,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:15:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:15:16,535 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:15:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:15:16,653 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:15:16,718 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:15:16,719 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:15:16,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 19:15:16,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:15:16 BoogieIcfgContainer [2020-11-29 19:15:16,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:15:16,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:15:16,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:15:16,870 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:15:16,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:15:14" (3/4) ... [2020-11-29 19:15:16,874 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 19:15:16,970 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bd73608c-f01c-4d5b-bd7d-e7d8d5da7fcf/bin/uautomizer/witness.graphml [2020-11-29 19:15:16,971 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:15:16,977 INFO L168 Benchmark]: Toolchain (without parser) took 4483.95 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 72.4 MB in the beginning and 51.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:16,978 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 81.8 MB. Free memory was 43.4 MB in the beginning and 43.3 MB in the end (delta: 35.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:15:16,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.66 ms. Allocated memory is still 102.8 MB. Free memory was 72.2 MB in the beginning and 70.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:16,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 132.45 ms. Allocated memory is still 102.8 MB. Free memory was 70.5 MB in the beginning and 66.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:16,980 INFO L168 Benchmark]: Boogie Preprocessor took 117.46 ms. Allocated memory is still 102.8 MB. Free memory was 66.8 MB in the beginning and 64.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:16,980 INFO L168 Benchmark]: RCFGBuilder took 1194.15 ms. Allocated memory is still 102.8 MB. Free memory was 64.0 MB in the beginning and 67.7 MB in the end (delta: -3.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:16,981 INFO L168 Benchmark]: TraceAbstraction took 2285.30 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 67.4 MB in the beginning and 62.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:16,982 INFO L168 Benchmark]: Witness Printer took 100.73 ms. Allocated memory is still 123.7 MB. Free memory was 62.9 MB in the beginning and 51.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:15:16,985 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 81.8 MB. Free memory was 43.4 MB in the beginning and 43.3 MB in the end (delta: 35.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 640.66 ms. Allocated memory is still 102.8 MB. Free memory was 72.2 MB in the beginning and 70.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 132.45 ms. Allocated memory is still 102.8 MB. Free memory was 70.5 MB in the beginning and 66.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 117.46 ms. Allocated memory is still 102.8 MB. Free memory was 66.8 MB in the beginning and 64.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1194.15 ms. Allocated memory is still 102.8 MB. Free memory was 64.0 MB in the beginning and 67.7 MB in the end (delta: -3.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2285.30 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 67.4 MB in the beginning and 62.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. * Witness Printer took 100.73 ms. Allocated memory is still 123.7 MB. Free memory was 62.9 MB in the beginning and 51.4 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L316] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int pumpRunning = 0; [L588] int systemActive = 1; [L870] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L943] int retValue_acc ; [L944] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] int retValue_acc ; [L864] retValue_acc = 1 [L865] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L950] tmp = valid_product() [L952] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L517] int splverifierCounter ; [L518] int tmp ; [L519] int tmp___0 ; [L520] int tmp___1 ; [L521] int tmp___2 ; [L524] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L526] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L528] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] tmp = __VERIFIER_nondet_int() [L536] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L544] tmp___0 = __VERIFIER_nondet_int() [L546] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] tmp___2 = __VERIFIER_nondet_int() [L556] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L602] COND TRUE \read(systemActive) [L650] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L653] COND FALSE !(\read(pumpRunning)) [L624] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L627] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L799] int tmp ; [L800] int tmp___0 ; [L801] int tmp___1 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L805] tmp = isMethaneLevelCritical() [L807] COND FALSE !(\read(tmp)) [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L811] tmp___0 = getWaterLevel() [L813] COND TRUE tmp___0 == 2 [L719] int retValue_acc ; [L722] retValue_acc = pumpRunning [L723] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L815] tmp___1 = isPumpRunning() [L817] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product31.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 116 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 400 SDtfs, 671 SDslu, 551 SDs, 0 SdLazy, 67 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=4, 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, 4 MinimizatonAttempts, 235 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...