./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product48.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_205a735f-4936-4ef5-8576-ac341bcd9ac0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/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 23682bb018ca337818baa43f0543337e0e1afa6d .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:27:26,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:27:26,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:27:26,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:27:26,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:27:26,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:27:26,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:27:26,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:27:26,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:27:26,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:27:26,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:27:26,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:27:26,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:27:26,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:27:26,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:27:26,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:27:26,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:27:26,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:27:26,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:27:26,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:27:26,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:27:26,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:27:26,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:27:26,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:27:26,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:27:26,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:27:26,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:27:26,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:27:26,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:27:26,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:27:26,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:27:26,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:27:26,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:27:26,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:27:26,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:27:26,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:27:26,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:27:26,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:27:26,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:27:26,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:27:26,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:27:26,340 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:27:26,400 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:27:26,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:27:26,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:27:26,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:27:26,402 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:27:26,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:27:26,403 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:27:26,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:27:26,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:27:26,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:27:26,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:27:26,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:27:26,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:27:26,404 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:27:26,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:27:26,404 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:27:26,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:27:26,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:27:26,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:27:26,410 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:27:26,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:27:26,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:27:26,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:27:26,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:27:26,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:27:26,412 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:27:26,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:27:26,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:27:26,413 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:27:26,413 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_205a735f-4936-4ef5-8576-ac341bcd9ac0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23682bb018ca337818baa43f0543337e0e1afa6d [2020-11-30 01:27:26,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:27:26,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:27:26,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:27:26,824 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:27:26,833 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:27:26,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2020-11-30 01:27:26,952 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/bin/uautomizer/data/03974301d/8131f4679474477e9a4cdc5cf5b81ec1/FLAG541646fa8 [2020-11-30 01:27:27,845 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:27:27,854 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2020-11-30 01:27:27,887 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/bin/uautomizer/data/03974301d/8131f4679474477e9a4cdc5cf5b81ec1/FLAG541646fa8 [2020-11-30 01:27:28,114 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/bin/uautomizer/data/03974301d/8131f4679474477e9a4cdc5cf5b81ec1 [2020-11-30 01:27:28,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:27:28,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:27:28,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:27:28,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:27:28,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:27:28,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:28,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33623f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28, skipping insertion in model container [2020-11-30 01:27:28,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:28,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:27:28,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:27:28,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:27:28,673 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:27:28,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:27:28,824 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:27:28,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28 WrapperNode [2020-11-30 01:27:28,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:27:28,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:27:28,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:27:28,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:27:28,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:28,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:28,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:27:28,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:27:28,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:27:28,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:27:28,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:28,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:28,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:28,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:29,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:29,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:29,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:29,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:27:29,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:27:29,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:27:29,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:27:29,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:27:29,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:27:29,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:27:29,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:27:29,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:27:30,633 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:27:30,633 INFO L298 CfgBuilder]: Removed 204 assume(true) statements. [2020-11-30 01:27:30,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:30 BoogieIcfgContainer [2020-11-30 01:27:30,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:27:30,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:27:30,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:27:30,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:27:30,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:27:28" (1/3) ... [2020-11-30 01:27:30,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff2932d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:27:30, skipping insertion in model container [2020-11-30 01:27:30,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (2/3) ... [2020-11-30 01:27:30,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff2932d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:27:30, skipping insertion in model container [2020-11-30 01:27:30,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:30" (3/3) ... [2020-11-30 01:27:30,650 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2020-11-30 01:27:30,665 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:27:30,672 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-30 01:27:30,686 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-30 01:27:30,720 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:27:30,720 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:27:30,720 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:27:30,720 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:27:30,720 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:27:30,720 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:27:30,721 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:27:30,721 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:27:30,745 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2020-11-30 01:27:30,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:27:30,753 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:30,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:30,755 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:30,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:30,763 INFO L82 PathProgramCache]: Analyzing trace with hash -240807826, now seen corresponding path program 1 times [2020-11-30 01:27:30,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:30,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690549089] [2020-11-30 01:27:30,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:31,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:31,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690549089] [2020-11-30 01:27:31,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:31,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:27:31,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759479259] [2020-11-30 01:27:31,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:27:31,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:31,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:27:31,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:27:31,145 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 2 states. [2020-11-30 01:27:31,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:31,218 INFO L93 Difference]: Finished difference Result 259 states and 386 transitions. [2020-11-30 01:27:31,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:27:31,220 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-30 01:27:31,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:31,255 INFO L225 Difference]: With dead ends: 259 [2020-11-30 01:27:31,255 INFO L226 Difference]: Without dead ends: 127 [2020-11-30 01:27:31,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:27:31,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-11-30 01:27:31,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2020-11-30 01:27:31,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-11-30 01:27:31,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 183 transitions. [2020-11-30 01:27:31,376 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 183 transitions. Word has length 16 [2020-11-30 01:27:31,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:31,378 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 183 transitions. [2020-11-30 01:27:31,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:27:31,379 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 183 transitions. [2020-11-30 01:27:31,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:27:31,382 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:31,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:31,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:27:31,384 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:31,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:31,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1287564723, now seen corresponding path program 1 times [2020-11-30 01:27:31,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:31,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173010306] [2020-11-30 01:27:31,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:31,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:31,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173010306] [2020-11-30 01:27:31,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:31,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:31,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171309880] [2020-11-30 01:27:31,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:31,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:31,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:31,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:31,633 INFO L87 Difference]: Start difference. First operand 127 states and 183 transitions. Second operand 3 states. [2020-11-30 01:27:31,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:31,651 INFO L93 Difference]: Finished difference Result 127 states and 183 transitions. [2020-11-30 01:27:31,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:31,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-30 01:27:31,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:31,691 INFO L225 Difference]: With dead ends: 127 [2020-11-30 01:27:31,693 INFO L226 Difference]: Without dead ends: 53 [2020-11-30 01:27:31,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:31,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-30 01:27:31,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-11-30 01:27:31,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-30 01:27:31,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2020-11-30 01:27:31,711 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2020-11-30 01:27:31,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:31,711 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2020-11-30 01:27:31,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:31,712 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2020-11-30 01:27:31,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 01:27:31,715 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:31,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:31,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:27:31,718 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:31,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:31,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1189907750, now seen corresponding path program 1 times [2020-11-30 01:27:31,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:31,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353231328] [2020-11-30 01:27:31,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:31,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:31,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353231328] [2020-11-30 01:27:31,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:31,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:27:31,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559652164] [2020-11-30 01:27:31,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:27:31,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:31,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:27:31,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:27:31,945 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 5 states. [2020-11-30 01:27:32,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:32,086 INFO L93 Difference]: Finished difference Result 123 states and 180 transitions. [2020-11-30 01:27:32,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:27:32,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-30 01:27:32,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:32,093 INFO L225 Difference]: With dead ends: 123 [2020-11-30 01:27:32,094 INFO L226 Difference]: Without dead ends: 76 [2020-11-30 01:27:32,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:27:32,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-30 01:27:32,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2020-11-30 01:27:32,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-30 01:27:32,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 105 transitions. [2020-11-30 01:27:32,116 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 105 transitions. Word has length 22 [2020-11-30 01:27:32,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:32,117 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 105 transitions. [2020-11-30 01:27:32,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:27:32,117 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 105 transitions. [2020-11-30 01:27:32,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 01:27:32,118 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:32,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:32,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:27:32,119 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:32,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:32,120 INFO L82 PathProgramCache]: Analyzing trace with hash 752688312, now seen corresponding path program 1 times [2020-11-30 01:27:32,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:32,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97661327] [2020-11-30 01:27:32,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:32,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:32,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97661327] [2020-11-30 01:27:32,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:32,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:27:32,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378205989] [2020-11-30 01:27:32,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:32,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:32,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:32,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:32,190 INFO L87 Difference]: Start difference. First operand 72 states and 105 transitions. Second operand 3 states. [2020-11-30 01:27:32,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:32,256 INFO L93 Difference]: Finished difference Result 159 states and 234 transitions. [2020-11-30 01:27:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:32,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-30 01:27:32,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:32,258 INFO L225 Difference]: With dead ends: 159 [2020-11-30 01:27:32,258 INFO L226 Difference]: Without dead ends: 93 [2020-11-30 01:27:32,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:32,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-11-30 01:27:32,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2020-11-30 01:27:32,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-11-30 01:27:32,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2020-11-30 01:27:32,273 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 24 [2020-11-30 01:27:32,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:32,273 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2020-11-30 01:27:32,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:32,273 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2020-11-30 01:27:32,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 01:27:32,274 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:32,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:32,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:27:32,275 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:32,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:32,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1744683281, now seen corresponding path program 1 times [2020-11-30 01:27:32,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:32,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840930110] [2020-11-30 01:27:32,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:32,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:32,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840930110] [2020-11-30 01:27:32,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:32,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 01:27:32,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117224733] [2020-11-30 01:27:32,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:27:32,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:32,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:27:32,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:27:32,450 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand 8 states. [2020-11-30 01:27:33,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:33,075 INFO L93 Difference]: Finished difference Result 585 states and 851 transitions. [2020-11-30 01:27:33,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 01:27:33,076 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-11-30 01:27:33,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:33,080 INFO L225 Difference]: With dead ends: 585 [2020-11-30 01:27:33,081 INFO L226 Difference]: Without dead ends: 500 [2020-11-30 01:27:33,085 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-30 01:27:33,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-11-30 01:27:33,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 227. [2020-11-30 01:27:33,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-11-30 01:27:33,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 316 transitions. [2020-11-30 01:27:33,166 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 316 transitions. Word has length 25 [2020-11-30 01:27:33,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:33,167 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 316 transitions. [2020-11-30 01:27:33,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:27:33,168 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 316 transitions. [2020-11-30 01:27:33,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-30 01:27:33,178 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:33,178 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:33,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:27:33,179 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:33,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:33,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1656950715, now seen corresponding path program 1 times [2020-11-30 01:27:33,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:33,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482615203] [2020-11-30 01:27:33,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:33,306 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:33,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482615203] [2020-11-30 01:27:33,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827206713] [2020-11-30 01:27:33,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:27:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:33,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 01:27:33,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:27:33,876 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:33,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:27:33,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-11-30 01:27:33,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658318564] [2020-11-30 01:27:33,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:27:33,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:33,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:27:33,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:27:33,880 INFO L87 Difference]: Start difference. First operand 227 states and 316 transitions. Second operand 4 states. [2020-11-30 01:27:34,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:34,141 INFO L93 Difference]: Finished difference Result 508 states and 721 transitions. [2020-11-30 01:27:34,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:27:34,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-11-30 01:27:34,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:34,147 INFO L225 Difference]: With dead ends: 508 [2020-11-30 01:27:34,147 INFO L226 Difference]: Without dead ends: 349 [2020-11-30 01:27:34,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:27:34,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-11-30 01:27:34,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 337. [2020-11-30 01:27:34,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-11-30 01:27:34,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 475 transitions. [2020-11-30 01:27:34,203 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 475 transitions. Word has length 41 [2020-11-30 01:27:34,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:34,203 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 475 transitions. [2020-11-30 01:27:34,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:27:34,204 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 475 transitions. [2020-11-30 01:27:34,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-30 01:27:34,209 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:34,210 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:34,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-30 01:27:34,418 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:34,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:34,419 INFO L82 PathProgramCache]: Analyzing trace with hash 720937928, now seen corresponding path program 1 times [2020-11-30 01:27:34,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:34,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321679824] [2020-11-30 01:27:34,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:34,563 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 01:27:34,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321679824] [2020-11-30 01:27:34,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:34,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:27:34,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655953014] [2020-11-30 01:27:34,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:27:34,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:34,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:27:34,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:27:34,567 INFO L87 Difference]: Start difference. First operand 337 states and 475 transitions. Second operand 5 states. [2020-11-30 01:27:34,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:34,750 INFO L93 Difference]: Finished difference Result 1043 states and 1460 transitions. [2020-11-30 01:27:34,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:27:34,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-11-30 01:27:34,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:34,762 INFO L225 Difference]: With dead ends: 1043 [2020-11-30 01:27:34,762 INFO L226 Difference]: Without dead ends: 712 [2020-11-30 01:27:34,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:27:34,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2020-11-30 01:27:34,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 358. [2020-11-30 01:27:34,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-11-30 01:27:34,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 496 transitions. [2020-11-30 01:27:34,822 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 496 transitions. Word has length 51 [2020-11-30 01:27:34,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:34,823 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 496 transitions. [2020-11-30 01:27:34,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:27:34,823 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 496 transitions. [2020-11-30 01:27:34,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-30 01:27:34,824 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:34,825 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:34,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 01:27:34,827 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:34,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:34,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1422537802, now seen corresponding path program 1 times [2020-11-30 01:27:34,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:34,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443748531] [2020-11-30 01:27:34,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:34,942 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 01:27:34,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443748531] [2020-11-30 01:27:34,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:34,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:27:34,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556089597] [2020-11-30 01:27:34,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:27:34,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:34,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:27:34,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:27:34,945 INFO L87 Difference]: Start difference. First operand 358 states and 496 transitions. Second operand 4 states. [2020-11-30 01:27:35,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:35,051 INFO L93 Difference]: Finished difference Result 832 states and 1157 transitions. [2020-11-30 01:27:35,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:27:35,052 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-11-30 01:27:35,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:35,056 INFO L225 Difference]: With dead ends: 832 [2020-11-30 01:27:35,057 INFO L226 Difference]: Without dead ends: 480 [2020-11-30 01:27:35,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:27:35,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-11-30 01:27:35,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 312. [2020-11-30 01:27:35,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-11-30 01:27:35,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 428 transitions. [2020-11-30 01:27:35,099 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 428 transitions. Word has length 51 [2020-11-30 01:27:35,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:35,099 INFO L481 AbstractCegarLoop]: Abstraction has 312 states and 428 transitions. [2020-11-30 01:27:35,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:27:35,100 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 428 transitions. [2020-11-30 01:27:35,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-30 01:27:35,102 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:35,102 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:35,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 01:27:35,103 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:35,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:35,103 INFO L82 PathProgramCache]: Analyzing trace with hash 572788494, now seen corresponding path program 1 times [2020-11-30 01:27:35,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:35,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457287132] [2020-11-30 01:27:35,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:35,256 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 01:27:35,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457287132] [2020-11-30 01:27:35,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:35,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:27:35,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415846152] [2020-11-30 01:27:35,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:27:35,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:35,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:27:35,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:27:35,262 INFO L87 Difference]: Start difference. First operand 312 states and 428 transitions. Second operand 6 states. [2020-11-30 01:27:35,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:35,659 INFO L93 Difference]: Finished difference Result 1822 states and 2538 transitions. [2020-11-30 01:27:35,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-30 01:27:35,660 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-11-30 01:27:35,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:35,672 INFO L225 Difference]: With dead ends: 1822 [2020-11-30 01:27:35,672 INFO L226 Difference]: Without dead ends: 1516 [2020-11-30 01:27:35,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-11-30 01:27:35,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2020-11-30 01:27:35,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 616. [2020-11-30 01:27:35,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2020-11-30 01:27:35,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 833 transitions. [2020-11-30 01:27:35,780 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 833 transitions. Word has length 52 [2020-11-30 01:27:35,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:35,783 INFO L481 AbstractCegarLoop]: Abstraction has 616 states and 833 transitions. [2020-11-30 01:27:35,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:27:35,783 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 833 transitions. [2020-11-30 01:27:35,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-30 01:27:35,785 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:35,788 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:35,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 01:27:35,789 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:35,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:35,793 INFO L82 PathProgramCache]: Analyzing trace with hash -118115538, now seen corresponding path program 1 times [2020-11-30 01:27:35,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:35,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280887995] [2020-11-30 01:27:35,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:35,961 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:35,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280887995] [2020-11-30 01:27:35,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497248703] [2020-11-30 01:27:35,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:27:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:36,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 01:27:36,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:27:36,251 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:36,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:27:36,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-11-30 01:27:36,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900721794] [2020-11-30 01:27:36,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:27:36,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:36,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:27:36,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:27:36,256 INFO L87 Difference]: Start difference. First operand 616 states and 833 transitions. Second operand 8 states. [2020-11-30 01:27:36,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:36,828 INFO L93 Difference]: Finished difference Result 1648 states and 2217 transitions. [2020-11-30 01:27:36,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 01:27:36,830 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-11-30 01:27:36,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:36,839 INFO L225 Difference]: With dead ends: 1648 [2020-11-30 01:27:36,840 INFO L226 Difference]: Without dead ends: 1122 [2020-11-30 01:27:36,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-11-30 01:27:36,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2020-11-30 01:27:36,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 540. [2020-11-30 01:27:36,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2020-11-30 01:27:36,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 714 transitions. [2020-11-30 01:27:36,936 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 714 transitions. Word has length 53 [2020-11-30 01:27:36,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:36,937 INFO L481 AbstractCegarLoop]: Abstraction has 540 states and 714 transitions. [2020-11-30 01:27:36,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:27:36,938 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 714 transitions. [2020-11-30 01:27:36,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-11-30 01:27:36,939 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:36,940 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:37,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-30 01:27:37,166 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:37,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:37,166 INFO L82 PathProgramCache]: Analyzing trace with hash -346129302, now seen corresponding path program 2 times [2020-11-30 01:27:37,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:37,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347240859] [2020-11-30 01:27:37,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:37,258 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:37,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:37,435 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:27:37,435 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:27:37,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 01:27:37,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:27:37 BoogieIcfgContainer [2020-11-30 01:27:37,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:27:37,712 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:27:37,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:27:37,713 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:27:37,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:30" (3/4) ... [2020-11-30 01:27:37,716 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:27:37,969 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_205a735f-4936-4ef5-8576-ac341bcd9ac0/bin/uautomizer/witness.graphml [2020-11-30 01:27:37,969 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:27:37,971 INFO L168 Benchmark]: Toolchain (without parser) took 9847.09 ms. Allocated memory was 92.3 MB in the beginning and 186.6 MB in the end (delta: 94.4 MB). Free memory was 64.0 MB in the beginning and 132.5 MB in the end (delta: -68.5 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:37,972 INFO L168 Benchmark]: CDTParser took 4.55 ms. Allocated memory is still 92.3 MB. Free memory is still 49.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:27:37,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.97 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 63.7 MB in the beginning and 94.6 MB in the end (delta: -30.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:37,974 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.83 ms. Allocated memory is still 127.9 MB. Free memory was 94.6 MB in the beginning and 90.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:37,974 INFO L168 Benchmark]: Boogie Preprocessor took 130.30 ms. Allocated memory is still 127.9 MB. Free memory was 90.4 MB in the beginning and 87.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:37,975 INFO L168 Benchmark]: RCFGBuilder took 1570.73 ms. Allocated memory is still 127.9 MB. Free memory was 87.7 MB in the beginning and 77.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:37,975 INFO L168 Benchmark]: TraceAbstraction took 7072.62 ms. Allocated memory was 127.9 MB in the beginning and 186.6 MB in the end (delta: 58.7 MB). Free memory was 77.5 MB in the beginning and 160.9 MB in the end (delta: -83.3 MB). Peak memory consumption was 66.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:37,976 INFO L168 Benchmark]: Witness Printer took 256.68 ms. Allocated memory is still 186.6 MB. Free memory was 160.9 MB in the beginning and 132.5 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:37,978 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.55 ms. Allocated memory is still 92.3 MB. Free memory is still 49.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 697.97 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 63.7 MB in the beginning and 94.6 MB in the end (delta: -30.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.83 ms. Allocated memory is still 127.9 MB. Free memory was 94.6 MB in the beginning and 90.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 130.30 ms. Allocated memory is still 127.9 MB. Free memory was 90.4 MB in the beginning and 87.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1570.73 ms. Allocated memory is still 127.9 MB. Free memory was 87.7 MB in the beginning and 77.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7072.62 ms. Allocated memory was 127.9 MB in the beginning and 186.6 MB in the end (delta: 58.7 MB). Free memory was 77.5 MB in the beginning and 160.9 MB in the end (delta: -83.3 MB). Peak memory consumption was 66.6 MB. Max. memory is 16.1 GB. * Witness Printer took 256.68 ms. Allocated memory is still 186.6 MB. Free memory was 160.9 MB in the beginning and 132.5 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L240] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L446] int cleanupTimeShifts = 4; [L558] int pumpRunning = 0; [L559] int systemActive = 1; [L776] int waterLevel = 1; [L777] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L527] int retValue_acc ; [L528] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L965] int retValue_acc ; [L968] retValue_acc = 1 [L969] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] tmp = valid_product() [L536] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L871] int splverifierCounter ; [L872] int tmp ; [L873] int tmp___0 ; [L874] int tmp___1 ; [L875] int tmp___2 ; [L878] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L880] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L882] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L888] tmp = __VERIFIER_nondet_int() [L890] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L794] COND TRUE waterLevel < 2 [L795] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L898] tmp___0 = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L908] tmp___2 = __VERIFIER_nondet_int() [L910] COND TRUE \read(tmp___2) [L771] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L565] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L572] COND TRUE \read(systemActive) [L620] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] COND FALSE !(\read(pumpRunning)) [L594] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] COND TRUE ! pumpRunning [L734] int retValue_acc ; [L735] int tmp ; [L736] int tmp___0 ; [L856] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L859] COND FALSE !(waterLevel < 2) [L863] retValue_acc = 0 [L864] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L740] tmp = isHighWaterSensorDry() [L742] COND FALSE !(\read(tmp)) [L745] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L747] retValue_acc = tmp___0 [L748] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L599] tmp = isHighWaterLevel() [L601] COND TRUE \read(tmp) [L653] int tmp ; [L678] int retValue_acc ; [L815] int retValue_acc ; [L818] retValue_acc = methaneLevelCritical [L819] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L682] retValue_acc = isMethaneLevelCritical() [L684] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L657] tmp = isMethaneAlarm() [L659] COND FALSE !(\read(tmp)) [L648] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L46] int tmp ; [L47] int tmp___0 ; [L847] int retValue_acc ; [L850] retValue_acc = waterLevel [L851] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L882] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L888] tmp = __VERIFIER_nondet_int() [L890] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L898] tmp___0 = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L908] tmp___2 = __VERIFIER_nondet_int() [L910] COND TRUE \read(tmp___2) [L771] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L565] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L782] COND TRUE waterLevel > 0 [L783] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L572] COND TRUE \read(systemActive) [L620] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L623] COND TRUE \read(pumpRunning) [L678] int retValue_acc ; [L815] int retValue_acc ; [L818] retValue_acc = methaneLevelCritical [L819] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L682] retValue_acc = isMethaneLevelCritical() [L684] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L625] tmp = isMethaneAlarm() [L627] COND FALSE !(\read(tmp)) [L594] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L597] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L46] int tmp ; [L47] int tmp___0 ; [L847] int retValue_acc ; [L850] retValue_acc = waterLevel [L851] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L882] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L888] tmp = __VERIFIER_nondet_int() [L890] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L898] tmp___0 = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L908] tmp___2 = __VERIFIER_nondet_int() [L910] COND TRUE \read(tmp___2) [L771] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L565] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L782] COND TRUE waterLevel > 0 [L783] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L572] COND TRUE \read(systemActive) [L620] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L623] COND TRUE \read(pumpRunning) [L678] int retValue_acc ; [L815] int retValue_acc ; [L818] retValue_acc = methaneLevelCritical [L819] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L682] retValue_acc = isMethaneLevelCritical() [L684] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L625] tmp = isMethaneAlarm() [L627] COND FALSE !(\read(tmp)) [L594] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L597] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L46] int tmp ; [L47] int tmp___0 ; [L847] int retValue_acc ; [L850] retValue_acc = waterLevel [L851] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L51] tmp = getWaterLevel() [L53] COND TRUE tmp == 0 [L689] int retValue_acc ; [L692] retValue_acc = pumpRunning [L693] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec4_product48.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 134 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.7s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1134 SDtfs, 2223 SDslu, 2206 SDs, 0 SdLazy, 311 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=616occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 2295 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 518 NumberOfCodeBlocks, 518 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 434 ConstructedInterpolants, 0 QuantifiedInterpolants, 36462 SizeOfPredicates, 4 NumberOfNonLiveVariables, 825 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 89/100 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...