./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.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_32f2ced4-c350-4042-a7fa-3f7083e010e4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_32f2ced4-c350-4042-a7fa-3f7083e010e4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_32f2ced4-c350-4042-a7fa-3f7083e010e4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_32f2ced4-c350-4042-a7fa-3f7083e010e4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_32f2ced4-c350-4042-a7fa-3f7083e010e4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_32f2ced4-c350-4042-a7fa-3f7083e010e4/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 df93fd989d6774382f7bc06f2f37e13403a51d4e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:12:18,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:12:18,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:12:18,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:12:18,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:12:18,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:12:18,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:12:18,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:12:18,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:12:18,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:12:18,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:12:18,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:12:18,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:12:18,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:12:18,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:12:18,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:12:18,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:12:18,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:12:18,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:12:18,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:12:18,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:12:18,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:12:18,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:12:18,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:12:18,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:12:18,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:12:18,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:12:18,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:12:18,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:12:18,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:12:18,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:12:18,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:12:18,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:12:18,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:12:18,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:12:18,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:12:18,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:12:18,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:12:18,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:12:18,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:12:18,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:12:18,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_32f2ced4-c350-4042-a7fa-3f7083e010e4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:12:18,441 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:12:18,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:12:18,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:12:18,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:12:18,443 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:12:18,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:12:18,444 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:12:18,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:12:18,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:12:18,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:12:18,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:12:18,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:12:18,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:12:18,446 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:12:18,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:12:18,446 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:12:18,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:12:18,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:12:18,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:12:18,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:12:18,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:12:18,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:12:18,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:12:18,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:12:18,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:12:18,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:12:18,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:12:18,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:12:18,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:12:18,450 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_32f2ced4-c350-4042-a7fa-3f7083e010e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_32f2ced4-c350-4042-a7fa-3f7083e010e4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df93fd989d6774382f7bc06f2f37e13403a51d4e [2020-11-30 01:12:18,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:12:18,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:12:18,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:12:18,763 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:12:18,764 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:12:18,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_32f2ced4-c350-4042-a7fa-3f7083e010e4/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2020-11-30 01:12:18,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_32f2ced4-c350-4042-a7fa-3f7083e010e4/bin/uautomizer/data/52ed6e3e7/71df49cb9f574917a22abe5d4da6582c/FLAG198d8ece4 [2020-11-30 01:12:19,387 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:12:19,390 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_32f2ced4-c350-4042-a7fa-3f7083e010e4/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2020-11-30 01:12:19,410 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_32f2ced4-c350-4042-a7fa-3f7083e010e4/bin/uautomizer/data/52ed6e3e7/71df49cb9f574917a22abe5d4da6582c/FLAG198d8ece4 [2020-11-30 01:12:19,654 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_32f2ced4-c350-4042-a7fa-3f7083e010e4/bin/uautomizer/data/52ed6e3e7/71df49cb9f574917a22abe5d4da6582c [2020-11-30 01:12:19,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:12:19,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:12:19,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:12:19,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:12:19,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:12:19,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:12:19" (1/1) ... [2020-11-30 01:12:19,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f2610f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:19, skipping insertion in model container [2020-11-30 01:12:19,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:12:19" (1/1) ... [2020-11-30 01:12:19,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:12:19,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:12:20,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:12:20,188 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:12:20,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:12:20,346 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:12:20,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:20 WrapperNode [2020-11-30 01:12:20,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:12:20,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:12:20,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:12:20,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:12:20,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:20" (1/1) ... [2020-11-30 01:12:20,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:20" (1/1) ... [2020-11-30 01:12:20,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:12:20,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:12:20,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:12:20,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:12:20,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:20" (1/1) ... [2020-11-30 01:12:20,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:20" (1/1) ... [2020-11-30 01:12:20,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:20" (1/1) ... [2020-11-30 01:12:20,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:20" (1/1) ... [2020-11-30 01:12:20,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:20" (1/1) ... [2020-11-30 01:12:20,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:20" (1/1) ... [2020-11-30 01:12:20,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:20" (1/1) ... [2020-11-30 01:12:20,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:12:20,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:12:20,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:12:20,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:12:20,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32f2ced4-c350-4042-a7fa-3f7083e010e4/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 01:12:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:12:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:12:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:12:20,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:12:21,989 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:12:21,989 INFO L298 CfgBuilder]: Removed 294 assume(true) statements. [2020-11-30 01:12:21,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:12:21 BoogieIcfgContainer [2020-11-30 01:12:21,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:12:21,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:12:21,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:12:22,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:12:22,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:12:19" (1/3) ... [2020-11-30 01:12:22,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0930fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:12:22, skipping insertion in model container [2020-11-30 01:12:22,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:20" (2/3) ... [2020-11-30 01:12:22,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0930fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:12:22, skipping insertion in model container [2020-11-30 01:12:22,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:12:21" (3/3) ... [2020-11-30 01:12:22,009 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2020-11-30 01:12:22,019 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:12:22,025 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-30 01:12:22,060 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-30 01:12:22,092 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:12:22,093 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:12:22,093 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:12:22,093 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:12:22,093 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:12:22,093 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:12:22,094 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:12:22,094 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:12:22,119 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states. [2020-11-30 01:12:22,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:12:22,126 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:12:22,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:12:22,128 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:12:22,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:12:22,134 INFO L82 PathProgramCache]: Analyzing trace with hash 394423535, now seen corresponding path program 1 times [2020-11-30 01:12:22,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:12:22,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510799440] [2020-11-30 01:12:22,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:12:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:22,460 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 01:12:22,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510799440] [2020-11-30 01:12:22,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:12:22,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:12:22,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090753867] [2020-11-30 01:12:22,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:12:22,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:12:22,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:12:22,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:12:22,483 INFO L87 Difference]: Start difference. First operand 200 states. Second operand 2 states. [2020-11-30 01:12:22,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:12:22,549 INFO L93 Difference]: Finished difference Result 391 states and 596 transitions. [2020-11-30 01:12:22,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:12:22,550 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-30 01:12:22,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:12:22,569 INFO L225 Difference]: With dead ends: 391 [2020-11-30 01:12:22,569 INFO L226 Difference]: Without dead ends: 193 [2020-11-30 01:12:22,580 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 01:12:22,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-11-30 01:12:22,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2020-11-30 01:12:22,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-11-30 01:12:22,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions. [2020-11-30 01:12:22,655 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 18 [2020-11-30 01:12:22,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:12:22,656 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 288 transitions. [2020-11-30 01:12:22,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:12:22,657 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions. [2020-11-30 01:12:22,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 01:12:22,659 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:12:22,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:12:22,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:12:22,660 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:12:22,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:12:22,663 INFO L82 PathProgramCache]: Analyzing trace with hash -516607218, now seen corresponding path program 1 times [2020-11-30 01:12:22,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:12:22,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634921879] [2020-11-30 01:12:22,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:12:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:22,829 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 01:12:22,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634921879] [2020-11-30 01:12:22,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:12:22,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:12:22,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414006484] [2020-11-30 01:12:22,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:12:22,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:12:22,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:12:22,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:12:22,833 INFO L87 Difference]: Start difference. First operand 193 states and 288 transitions. Second operand 3 states. [2020-11-30 01:12:22,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:12:22,850 INFO L93 Difference]: Finished difference Result 193 states and 288 transitions. [2020-11-30 01:12:22,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:12:22,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-30 01:12:22,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:12:22,852 INFO L225 Difference]: With dead ends: 193 [2020-11-30 01:12:22,852 INFO L226 Difference]: Without dead ends: 75 [2020-11-30 01:12:22,853 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 01:12:22,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-11-30 01:12:22,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-11-30 01:12:22,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-11-30 01:12:22,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2020-11-30 01:12:22,859 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 19 [2020-11-30 01:12:22,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:12:22,860 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 111 transitions. [2020-11-30 01:12:22,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:12:22,860 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions. [2020-11-30 01:12:22,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 01:12:22,861 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:12:22,861 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 01:12:22,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:12:22,862 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:12:22,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:12:22,863 INFO L82 PathProgramCache]: Analyzing trace with hash 134472408, now seen corresponding path program 1 times [2020-11-30 01:12:22,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:12:22,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626562277] [2020-11-30 01:12:22,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:12:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:22,953 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 01:12:22,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626562277] [2020-11-30 01:12:22,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:12:22,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:12:22,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563544183] [2020-11-30 01:12:22,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:12:22,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:12:22,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:12:22,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:12:22,955 INFO L87 Difference]: Start difference. First operand 75 states and 111 transitions. Second operand 3 states. [2020-11-30 01:12:22,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:12:22,991 INFO L93 Difference]: Finished difference Result 213 states and 321 transitions. [2020-11-30 01:12:22,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:12:22,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-30 01:12:22,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:12:22,993 INFO L225 Difference]: With dead ends: 213 [2020-11-30 01:12:22,993 INFO L226 Difference]: Without dead ends: 144 [2020-11-30 01:12:22,994 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 01:12:22,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-11-30 01:12:23,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 140. [2020-11-30 01:12:23,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-30 01:12:23,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 211 transitions. [2020-11-30 01:12:23,005 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 211 transitions. Word has length 24 [2020-11-30 01:12:23,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:12:23,006 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 211 transitions. [2020-11-30 01:12:23,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:12:23,006 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 211 transitions. [2020-11-30 01:12:23,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-30 01:12:23,007 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:12:23,008 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] [2020-11-30 01:12:23,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:12:23,008 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:12:23,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:12:23,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1119046690, now seen corresponding path program 1 times [2020-11-30 01:12:23,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:12:23,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909452753] [2020-11-30 01:12:23,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:12:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:23,065 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 01:12:23,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909452753] [2020-11-30 01:12:23,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:12:23,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:12:23,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406191356] [2020-11-30 01:12:23,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:12:23,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:12:23,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:12:23,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:12:23,067 INFO L87 Difference]: Start difference. First operand 140 states and 211 transitions. Second operand 3 states. [2020-11-30 01:12:23,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:12:23,158 INFO L93 Difference]: Finished difference Result 295 states and 448 transitions. [2020-11-30 01:12:23,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:12:23,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-11-30 01:12:23,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:12:23,163 INFO L225 Difference]: With dead ends: 295 [2020-11-30 01:12:23,163 INFO L226 Difference]: Without dead ends: 161 [2020-11-30 01:12:23,164 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 01:12:23,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-11-30 01:12:23,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2020-11-30 01:12:23,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-11-30 01:12:23,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 231 transitions. [2020-11-30 01:12:23,184 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 231 transitions. Word has length 27 [2020-11-30 01:12:23,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:12:23,185 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 231 transitions. [2020-11-30 01:12:23,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:12:23,186 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 231 transitions. [2020-11-30 01:12:23,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-30 01:12:23,189 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:12:23,190 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] [2020-11-30 01:12:23,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:12:23,191 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:12:23,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:12:23,191 INFO L82 PathProgramCache]: Analyzing trace with hash -428868179, now seen corresponding path program 1 times [2020-11-30 01:12:23,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:12:23,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019229258] [2020-11-30 01:12:23,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:12:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:23,300 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 01:12:23,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019229258] [2020-11-30 01:12:23,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:12:23,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:12:23,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897455946] [2020-11-30 01:12:23,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:12:23,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:12:23,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:12:23,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:12:23,302 INFO L87 Difference]: Start difference. First operand 159 states and 231 transitions. Second operand 5 states. [2020-11-30 01:12:23,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:12:23,496 INFO L93 Difference]: Finished difference Result 809 states and 1191 transitions. [2020-11-30 01:12:23,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:12:23,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-30 01:12:23,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:12:23,503 INFO L225 Difference]: With dead ends: 809 [2020-11-30 01:12:23,503 INFO L226 Difference]: Without dead ends: 656 [2020-11-30 01:12:23,504 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 [2020-11-30 01:12:23,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2020-11-30 01:12:23,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 252. [2020-11-30 01:12:23,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-11-30 01:12:23,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 356 transitions. [2020-11-30 01:12:23,551 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 356 transitions. Word has length 27 [2020-11-30 01:12:23,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:12:23,551 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 356 transitions. [2020-11-30 01:12:23,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:12:23,551 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 356 transitions. [2020-11-30 01:12:23,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 01:12:23,556 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:12:23,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:12:23,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:12:23,557 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:12:23,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:12:23,558 INFO L82 PathProgramCache]: Analyzing trace with hash -2129131921, now seen corresponding path program 1 times [2020-11-30 01:12:23,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:12:23,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128583053] [2020-11-30 01:12:23,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:12:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:12:23,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:12:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:12:23,720 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:12:23,757 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:12:23,757 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:12:23,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:12:23,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:12:23 BoogieIcfgContainer [2020-11-30 01:12:23,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:12:23,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:12:23,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:12:23,867 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:12:23,868 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:12:21" (3/4) ... [2020-11-30 01:12:23,870 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:12:23,977 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_32f2ced4-c350-4042-a7fa-3f7083e010e4/bin/uautomizer/witness.graphml [2020-11-30 01:12:23,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:12:23,978 INFO L168 Benchmark]: Toolchain (without parser) took 4318.97 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 68.4 MB in the beginning and 44.5 MB in the end (delta: 24.0 MB). Peak memory consumption was 53.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:23,979 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 73.4 MB. Free memory was 36.6 MB in the beginning and 36.5 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:12:23,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.46 ms. Allocated memory is still 98.6 MB. Free memory was 68.1 MB in the beginning and 63.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:23,980 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.81 ms. Allocated memory is still 98.6 MB. Free memory was 63.9 MB in the beginning and 59.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:23,980 INFO L168 Benchmark]: Boogie Preprocessor took 99.37 ms. Allocated memory is still 98.6 MB. Free memory was 59.2 MB in the beginning and 55.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:23,980 INFO L168 Benchmark]: RCFGBuilder took 1433.46 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 55.5 MB in the beginning and 81.7 MB in the end (delta: -26.2 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:23,981 INFO L168 Benchmark]: TraceAbstraction took 1872.74 ms. Allocated memory is still 127.9 MB. Free memory was 80.9 MB in the beginning and 56.0 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:23,981 INFO L168 Benchmark]: Witness Printer took 110.75 ms. Allocated memory is still 127.9 MB. Free memory was 56.0 MB in the beginning and 44.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:23,984 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 73.4 MB. Free memory was 36.6 MB in the beginning and 36.5 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 686.46 ms. Allocated memory is still 98.6 MB. Free memory was 68.1 MB in the beginning and 63.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.81 ms. Allocated memory is still 98.6 MB. Free memory was 63.9 MB in the beginning and 59.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.37 ms. Allocated memory is still 98.6 MB. Free memory was 59.2 MB in the beginning and 55.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1433.46 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 55.5 MB in the beginning and 81.7 MB in the end (delta: -26.2 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1872.74 ms. Allocated memory is still 127.9 MB. Free memory was 80.9 MB in the beginning and 56.0 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. * Witness Printer took 110.75 ms. Allocated memory is still 127.9 MB. Free memory was 56.0 MB in the beginning and 44.5 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: [L42] int cleanupTimeShifts = 4; [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L589] int waterLevel = 1; [L590] int methaneLevelCritical = 0; [L696] int pumpRunning = 0; [L697] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L943] int splverifierCounter ; [L944] int tmp ; [L945] int tmp___0 ; [L946] int tmp___1 ; [L947] int tmp___2 ; [L950] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L952] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L954] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L960] tmp = __VERIFIER_nondet_int() [L962] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L607] COND TRUE waterLevel < 2 [L608] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L970] tmp___0 = __VERIFIER_nondet_int() [L972] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L980] tmp___2 = __VERIFIER_nondet_int() [L982] COND FALSE !(\read(tmp___2)) [L988] tmp___1 = __VERIFIER_nondet_int() [L990] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L922] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L929] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L703] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L710] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L552] int tmp ; [L553] int tmp___0 ; [L554] int tmp___1 ; [L628] int retValue_acc ; [L631] retValue_acc = methaneLevelCritical [L632] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L558] tmp = isMethaneLevelCritical() [L560] COND FALSE !(\read(tmp)) [L660] int retValue_acc ; [L663] retValue_acc = waterLevel [L664] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L564] tmp___0 = getWaterLevel() [L566] COND TRUE tmp___0 == 2 [L836] int retValue_acc ; [L839] retValue_acc = pumpRunning [L840] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L568] tmp___1 = isPumpRunning() [L570] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product56.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 200 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 753 SDtfs, 598 SDslu, 522 SDs, 0 SdLazy, 73 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 410 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 4790 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...