./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.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_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/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 766a879002f02395031e659ac25b856858b20e6e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:11:11,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:11:11,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:11:11,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:11:11,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:11:11,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:11:11,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:11:11,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:11:11,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:11:11,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:11:11,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:11:11,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:11:11,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:11:11,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:11:11,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:11:11,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:11:11,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:11:11,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:11:11,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:11:11,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:11:11,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:11:11,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:11:11,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:11:11,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:11:11,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:11:11,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:11:11,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:11:11,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:11:11,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:11:11,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:11:11,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:11:11,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:11:11,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:11:11,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:11:11,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:11:11,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:11:11,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:11:11,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:11:11,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:11:11,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:11:11,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:11:11,787 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:11:11,812 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:11:11,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:11:11,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:11:11,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:11:11,817 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:11:11,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:11:11,817 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:11:11,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:11:11,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:11:11,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:11:11,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:11:11,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:11:11,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:11:11,819 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:11:11,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:11:11,820 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:11:11,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:11:11,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:11:11,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:11:11,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:11:11,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:11:11,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:11:11,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:11:11,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:11:11,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:11:11,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:11:11,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:11:11,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:11:11,823 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:11:11,823 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_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 766a879002f02395031e659ac25b856858b20e6e [2020-11-30 00:11:12,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:11:12,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:11:12,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:11:12,205 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:11:12,207 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:11:12,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2020-11-30 00:11:12,300 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/bin/uautomizer/data/4a64ba9d6/cdf7c621a040441f9f676d5bf82e3771/FLAG218c93d42 [2020-11-30 00:11:12,919 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:11:12,920 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2020-11-30 00:11:12,936 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/bin/uautomizer/data/4a64ba9d6/cdf7c621a040441f9f676d5bf82e3771/FLAG218c93d42 [2020-11-30 00:11:13,222 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/bin/uautomizer/data/4a64ba9d6/cdf7c621a040441f9f676d5bf82e3771 [2020-11-30 00:11:13,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:11:13,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:11:13,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:11:13,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:11:13,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:11:13,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:11:13" (1/1) ... [2020-11-30 00:11:13,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a38a055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:13, skipping insertion in model container [2020-11-30 00:11:13,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:11:13" (1/1) ... [2020-11-30 00:11:13,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:11:13,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:11:13,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:11:13,663 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:11:13,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:11:13,822 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:11:13,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:13 WrapperNode [2020-11-30 00:11:13,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:11:13,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:11:13,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:11:13,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:11:13,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:13" (1/1) ... [2020-11-30 00:11:13,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:13" (1/1) ... [2020-11-30 00:11:13,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:11:13,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:11:13,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:11:13,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:11:13,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:13" (1/1) ... [2020-11-30 00:11:13,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:13" (1/1) ... [2020-11-30 00:11:13,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:13" (1/1) ... [2020-11-30 00:11:13,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:13" (1/1) ... [2020-11-30 00:11:13,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:13" (1/1) ... [2020-11-30 00:11:13,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:13" (1/1) ... [2020-11-30 00:11:13,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:13" (1/1) ... [2020-11-30 00:11:14,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:11:14,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:11:14,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:11:14,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:11:14,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/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 00:11:14,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:11:14,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:11:14,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:11:14,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:11:15,377 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:11:15,378 INFO L298 CfgBuilder]: Removed 172 assume(true) statements. [2020-11-30 00:11:15,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:11:15 BoogieIcfgContainer [2020-11-30 00:11:15,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:11:15,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:11:15,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:11:15,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:11:15,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:11:13" (1/3) ... [2020-11-30 00:11:15,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1342a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:11:15, skipping insertion in model container [2020-11-30 00:11:15,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:13" (2/3) ... [2020-11-30 00:11:15,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1342a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:11:15, skipping insertion in model container [2020-11-30 00:11:15,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:11:15" (3/3) ... [2020-11-30 00:11:15,392 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2020-11-30 00:11:15,404 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:11:15,409 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-30 00:11:15,422 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-30 00:11:15,460 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:11:15,461 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:11:15,461 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:11:15,461 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:11:15,462 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:11:15,462 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:11:15,463 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:11:15,463 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:11:15,491 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2020-11-30 00:11:15,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:11:15,498 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:11:15,499 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 00:11:15,499 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:11:15,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:15,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1946356456, now seen corresponding path program 1 times [2020-11-30 00:11:15,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:11:15,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550072695] [2020-11-30 00:11:15,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:11:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:11:15,763 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 00:11:15,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550072695] [2020-11-30 00:11:15,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:11:15,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:11:15,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544160175] [2020-11-30 00:11:15,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:11:15,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:11:15,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:11:15,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:11:15,789 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 2 states. [2020-11-30 00:11:15,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:11:15,847 INFO L93 Difference]: Finished difference Result 247 states and 374 transitions. [2020-11-30 00:11:15,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:11:15,849 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-30 00:11:15,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:11:15,867 INFO L225 Difference]: With dead ends: 247 [2020-11-30 00:11:15,868 INFO L226 Difference]: Without dead ends: 121 [2020-11-30 00:11:15,876 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 00:11:15,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-11-30 00:11:15,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2020-11-30 00:11:15,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-11-30 00:11:15,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 177 transitions. [2020-11-30 00:11:15,953 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 177 transitions. Word has length 18 [2020-11-30 00:11:15,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:11:15,954 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 177 transitions. [2020-11-30 00:11:15,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:11:15,955 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 177 transitions. [2020-11-30 00:11:15,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 00:11:15,959 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:11:15,959 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 00:11:15,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:11:15,960 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:11:15,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:15,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1437580087, now seen corresponding path program 1 times [2020-11-30 00:11:15,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:11:15,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606682185] [2020-11-30 00:11:15,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:11:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:11:16,150 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 00:11:16,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606682185] [2020-11-30 00:11:16,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:11:16,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:11:16,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689000964] [2020-11-30 00:11:16,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:11:16,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:11:16,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:11:16,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:11:16,153 INFO L87 Difference]: Start difference. First operand 121 states and 177 transitions. Second operand 3 states. [2020-11-30 00:11:16,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:11:16,165 INFO L93 Difference]: Finished difference Result 121 states and 177 transitions. [2020-11-30 00:11:16,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:11:16,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-30 00:11:16,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:11:16,166 INFO L225 Difference]: With dead ends: 121 [2020-11-30 00:11:16,167 INFO L226 Difference]: Without dead ends: 51 [2020-11-30 00:11:16,168 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 00:11:16,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-30 00:11:16,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-11-30 00:11:16,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-30 00:11:16,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2020-11-30 00:11:16,174 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2020-11-30 00:11:16,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:11:16,174 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2020-11-30 00:11:16,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:11:16,175 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2020-11-30 00:11:16,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 00:11:16,176 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:11:16,176 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 00:11:16,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:11:16,176 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:11:16,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:16,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1538545843, now seen corresponding path program 1 times [2020-11-30 00:11:16,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:11:16,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208133451] [2020-11-30 00:11:16,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:11:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:11:16,326 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 00:11:16,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208133451] [2020-11-30 00:11:16,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:11:16,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:11:16,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340934379] [2020-11-30 00:11:16,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:11:16,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:11:16,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:11:16,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:11:16,328 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 6 states. [2020-11-30 00:11:16,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:11:16,570 INFO L93 Difference]: Finished difference Result 166 states and 247 transitions. [2020-11-30 00:11:16,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:11:16,572 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-11-30 00:11:16,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:11:16,573 INFO L225 Difference]: With dead ends: 166 [2020-11-30 00:11:16,573 INFO L226 Difference]: Without dead ends: 121 [2020-11-30 00:11:16,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:11:16,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-11-30 00:11:16,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 72. [2020-11-30 00:11:16,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-30 00:11:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 106 transitions. [2020-11-30 00:11:16,590 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 106 transitions. Word has length 24 [2020-11-30 00:11:16,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:11:16,590 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 106 transitions. [2020-11-30 00:11:16,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:11:16,591 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2020-11-30 00:11:16,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-30 00:11:16,593 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:11:16,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:11:16,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:11:16,594 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:11:16,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:16,594 INFO L82 PathProgramCache]: Analyzing trace with hash -560581361, now seen corresponding path program 1 times [2020-11-30 00:11:16,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:11:16,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109104142] [2020-11-30 00:11:16,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:11:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:11:16,677 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 00:11:16,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109104142] [2020-11-30 00:11:16,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:11:16,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:11:16,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006830951] [2020-11-30 00:11:16,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:11:16,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:11:16,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:11:16,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:11:16,679 INFO L87 Difference]: Start difference. First operand 72 states and 106 transitions. Second operand 3 states. [2020-11-30 00:11:16,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:11:16,728 INFO L93 Difference]: Finished difference Result 161 states and 239 transitions. [2020-11-30 00:11:16,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:11:16,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-11-30 00:11:16,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:11:16,730 INFO L225 Difference]: With dead ends: 161 [2020-11-30 00:11:16,730 INFO L226 Difference]: Without dead ends: 95 [2020-11-30 00:11:16,731 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 00:11:16,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-11-30 00:11:16,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2020-11-30 00:11:16,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-30 00:11:16,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2020-11-30 00:11:16,746 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 26 [2020-11-30 00:11:16,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:11:16,748 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2020-11-30 00:11:16,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:11:16,748 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2020-11-30 00:11:16,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-30 00:11:16,752 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:11:16,752 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 00:11:16,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:11:16,753 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:11:16,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:16,754 INFO L82 PathProgramCache]: Analyzing trace with hash 364943842, now seen corresponding path program 1 times [2020-11-30 00:11:16,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:11:16,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707805242] [2020-11-30 00:11:16,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:11:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:11:16,861 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 00:11:16,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707805242] [2020-11-30 00:11:16,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:11:16,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:11:16,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277302568] [2020-11-30 00:11:16,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:11:16,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:11:16,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:11:16,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:11:16,864 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand 5 states. [2020-11-30 00:11:17,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:11:17,058 INFO L93 Difference]: Finished difference Result 482 states and 707 transitions. [2020-11-30 00:11:17,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:11:17,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-30 00:11:17,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:11:17,062 INFO L225 Difference]: With dead ends: 482 [2020-11-30 00:11:17,063 INFO L226 Difference]: Without dead ends: 395 [2020-11-30 00:11:17,064 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 00:11:17,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-11-30 00:11:17,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 158. [2020-11-30 00:11:17,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-11-30 00:11:17,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 221 transitions. [2020-11-30 00:11:17,087 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 221 transitions. Word has length 27 [2020-11-30 00:11:17,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:11:17,088 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 221 transitions. [2020-11-30 00:11:17,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:11:17,088 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 221 transitions. [2020-11-30 00:11:17,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 00:11:17,090 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:11:17,090 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 00:11:17,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:11:17,090 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:11:17,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:17,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1335319900, now seen corresponding path program 1 times [2020-11-30 00:11:17,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:11:17,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388170626] [2020-11-30 00:11:17,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:11:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:17,204 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:17,289 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:17,344 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:11:17,344 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:11:17,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 00:11:17,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:11:17 BoogieIcfgContainer [2020-11-30 00:11:17,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:11:17,461 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:11:17,461 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:11:17,461 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:11:17,462 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:11:15" (3/4) ... [2020-11-30 00:11:17,467 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:11:17,562 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f6da8820-5fe1-477f-9ef5-6e9a71dc304a/bin/uautomizer/witness.graphml [2020-11-30 00:11:17,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:11:17,564 INFO L168 Benchmark]: Toolchain (without parser) took 4336.00 ms. Allocated memory was 113.2 MB in the beginning and 138.4 MB in the end (delta: 25.2 MB). Free memory was 76.8 MB in the beginning and 73.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:11:17,565 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 113.2 MB. Free memory was 84.2 MB in the beginning and 84.2 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:11:17,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.14 ms. Allocated memory is still 113.2 MB. Free memory was 76.6 MB in the beginning and 77.5 MB in the end (delta: -887.7 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:11:17,566 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.50 ms. Allocated memory is still 113.2 MB. Free memory was 77.5 MB in the beginning and 73.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:11:17,567 INFO L168 Benchmark]: Boogie Preprocessor took 81.29 ms. Allocated memory is still 113.2 MB. Free memory was 73.8 MB in the beginning and 71.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:11:17,567 INFO L168 Benchmark]: RCFGBuilder took 1380.80 ms. Allocated memory was 113.2 MB in the beginning and 138.4 MB in the end (delta: 25.2 MB). Free memory was 71.2 MB in the beginning and 83.3 MB in the end (delta: -12.1 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:11:17,568 INFO L168 Benchmark]: TraceAbstraction took 2076.34 ms. Allocated memory is still 138.4 MB. Free memory was 82.2 MB in the beginning and 84.9 MB in the end (delta: -2.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:11:17,569 INFO L168 Benchmark]: Witness Printer took 101.46 ms. Allocated memory is still 138.4 MB. Free memory was 84.9 MB in the beginning and 73.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:11:17,571 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 113.2 MB. Free memory was 84.2 MB in the beginning and 84.2 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 581.14 ms. Allocated memory is still 113.2 MB. Free memory was 76.6 MB in the beginning and 77.5 MB in the end (delta: -887.7 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.50 ms. Allocated memory is still 113.2 MB. Free memory was 77.5 MB in the beginning and 73.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.29 ms. Allocated memory is still 113.2 MB. Free memory was 73.8 MB in the beginning and 71.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1380.80 ms. Allocated memory was 113.2 MB in the beginning and 138.4 MB in the end (delta: 25.2 MB). Free memory was 71.2 MB in the beginning and 83.3 MB in the end (delta: -12.1 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2076.34 ms. Allocated memory is still 138.4 MB. Free memory was 82.2 MB in the beginning and 84.9 MB in the end (delta: -2.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 101.46 ms. Allocated memory is still 138.4 MB. Free memory was 84.9 MB in the beginning and 73.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 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: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L227] int pumpRunning = 0; [L228] int systemActive = 1; [L475] int cleanupTimeShifts = 4; [L778] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L551] int retValue_acc ; [L552] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L600] int retValue_acc ; [L603] retValue_acc = 1 [L604] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L558] tmp = valid_product() [L560] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] int splverifierCounter ; [L158] int tmp ; [L159] int tmp___0 ; [L160] int tmp___1 ; [L161] int tmp___2 ; [L164] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L168] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L174] tmp = __VERIFIER_nondet_int() [L176] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L68] COND TRUE waterLevel < 2 [L69] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L184] tmp___0 = __VERIFIER_nondet_int() [L186] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L194] tmp___2 = __VERIFIER_nondet_int() [L196] COND FALSE !(\read(tmp___2)) [L200] tmp___1 = __VERIFIER_nondet_int() [L202] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L428] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L435] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L235] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L242] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L442] int tmp ; [L443] int tmp___0 ; [L444] int tmp___1 ; [L89] int retValue_acc ; [L92] retValue_acc = methaneLevelCritical [L93] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L448] tmp = isMethaneLevelCritical() [L450] COND FALSE !(\read(tmp)) [L121] int retValue_acc ; [L124] retValue_acc = waterLevel [L125] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L454] tmp___0 = getWaterLevel() [L456] COND TRUE tmp___0 == 2 [L342] int retValue_acc ; [L345] retValue_acc = pumpRunning [L346] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L458] tmp___1 = isPumpRunning() [L460] 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_product51.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, 128 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 517 SDtfs, 714 SDslu, 635 SDs, 0 SdLazy, 79 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred 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, 288 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5504 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...