./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product14.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_905bff11-f3c6-40d6-aa51-43406c159d63/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_905bff11-f3c6-40d6-aa51-43406c159d63/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_905bff11-f3c6-40d6-aa51-43406c159d63/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_905bff11-f3c6-40d6-aa51-43406c159d63/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_905bff11-f3c6-40d6-aa51-43406c159d63/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_905bff11-f3c6-40d6-aa51-43406c159d63/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 8369ffe6be6d2c55428400826fc244d656d1bbae .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:56:14,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:56:14,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:56:14,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:56:14,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:56:14,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:56:14,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:56:14,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:56:14,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:56:14,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:56:14,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:56:14,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:56:14,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:56:14,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:56:14,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:56:14,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:56:14,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:56:14,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:56:14,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:56:14,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:56:14,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:56:14,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:56:14,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:56:14,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:56:14,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:56:14,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:56:14,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:56:14,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:56:14,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:56:14,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:56:14,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:56:14,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:56:14,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:56:14,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:56:14,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:56:14,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:56:14,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:56:14,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:56:14,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:56:14,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:56:14,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:56:14,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_905bff11-f3c6-40d6-aa51-43406c159d63/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:56:14,673 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:56:14,673 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:56:14,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:56:14,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:56:14,676 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:56:14,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:56:14,677 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:56:14,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:56:14,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:56:14,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:56:14,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:56:14,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:56:14,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:56:14,680 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:56:14,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:56:14,680 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:56:14,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:56:14,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:56:14,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:56:14,681 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:56:14,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:56:14,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:56:14,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:56:14,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:56:14,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:56:14,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:56:14,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:56:14,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:56:14,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:56:14,684 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_905bff11-f3c6-40d6-aa51-43406c159d63/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_905bff11-f3c6-40d6-aa51-43406c159d63/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8369ffe6be6d2c55428400826fc244d656d1bbae [2020-11-29 22:56:14,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:56:15,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:56:15,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:56:15,045 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:56:15,046 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:56:15,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_905bff11-f3c6-40d6-aa51-43406c159d63/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c [2020-11-29 22:56:15,126 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_905bff11-f3c6-40d6-aa51-43406c159d63/bin/uautomizer/data/69e7dc19e/21232ef00a614ed1b3b24c37ff72e35b/FLAG70d88819e [2020-11-29 22:56:15,784 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:56:15,784 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_905bff11-f3c6-40d6-aa51-43406c159d63/sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c [2020-11-29 22:56:15,806 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_905bff11-f3c6-40d6-aa51-43406c159d63/bin/uautomizer/data/69e7dc19e/21232ef00a614ed1b3b24c37ff72e35b/FLAG70d88819e [2020-11-29 22:56:16,079 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_905bff11-f3c6-40d6-aa51-43406c159d63/bin/uautomizer/data/69e7dc19e/21232ef00a614ed1b3b24c37ff72e35b [2020-11-29 22:56:16,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:56:16,083 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:56:16,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:56:16,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:56:16,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:56:16,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:56:16" (1/1) ... [2020-11-29 22:56:16,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c87cb25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:16, skipping insertion in model container [2020-11-29 22:56:16,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:56:16" (1/1) ... [2020-11-29 22:56:16,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:56:16,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:56:16,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:56:16,647 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:56:16,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:56:16,796 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:56:16,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:16 WrapperNode [2020-11-29 22:56:16,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:56:16,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:56:16,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:56:16,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:56:16,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:16" (1/1) ... [2020-11-29 22:56:16,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:16" (1/1) ... [2020-11-29 22:56:16,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:56:16,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:56:16,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:56:16,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:56:16,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:16" (1/1) ... [2020-11-29 22:56:16,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:16" (1/1) ... [2020-11-29 22:56:16,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:16" (1/1) ... [2020-11-29 22:56:16,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:16" (1/1) ... [2020-11-29 22:56:16,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:16" (1/1) ... [2020-11-29 22:56:16,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:16" (1/1) ... [2020-11-29 22:56:16,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:16" (1/1) ... [2020-11-29 22:56:16,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:56:16,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:56:16,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:56:16,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:56:16,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_905bff11-f3c6-40d6-aa51-43406c159d63/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:56:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:56:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:56:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:56:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:56:18,175 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:56:18,175 INFO L298 CfgBuilder]: Removed 110 assume(true) statements. [2020-11-29 22:56:18,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:56:18 BoogieIcfgContainer [2020-11-29 22:56:18,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:56:18,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:56:18,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:56:18,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:56:18,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:56:16" (1/3) ... [2020-11-29 22:56:18,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746bc678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:56:18, skipping insertion in model container [2020-11-29 22:56:18,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:16" (2/3) ... [2020-11-29 22:56:18,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746bc678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:56:18, skipping insertion in model container [2020-11-29 22:56:18,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:56:18" (3/3) ... [2020-11-29 22:56:18,189 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product14.cil.c [2020-11-29 22:56:18,201 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:56:18,206 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 22:56:18,219 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 22:56:18,258 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:56:18,258 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:56:18,258 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:56:18,258 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:56:18,258 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:56:18,259 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:56:18,259 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:56:18,259 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:56:18,285 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2020-11-29 22:56:18,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 22:56:18,293 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:56:18,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:56:18,295 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:56:18,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:56:18,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1323954982, now seen corresponding path program 1 times [2020-11-29 22:56:18,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:56:18,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679168467] [2020-11-29 22:56:18,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:56:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:56:18,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:56:18,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679168467] [2020-11-29 22:56:18,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:56:18,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:56:18,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045069851] [2020-11-29 22:56:18,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 22:56:18,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:56:18,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:56:18,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:56:18,654 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2020-11-29 22:56:18,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:56:18,683 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2020-11-29 22:56:18,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:56:18,684 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-29 22:56:18,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:56:18,694 INFO L225 Difference]: With dead ends: 147 [2020-11-29 22:56:18,695 INFO L226 Difference]: Without dead ends: 71 [2020-11-29 22:56:18,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:56:18,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-29 22:56:18,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-29 22:56:18,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-29 22:56:18,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2020-11-29 22:56:18,768 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 18 [2020-11-29 22:56:18,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:56:18,768 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-11-29 22:56:18,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 22:56:18,770 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2020-11-29 22:56:18,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 22:56:18,771 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:56:18,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:56:18,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:56:18,773 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:56:18,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:56:18,776 INFO L82 PathProgramCache]: Analyzing trace with hash 412924229, now seen corresponding path program 1 times [2020-11-29 22:56:18,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:56:18,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745089377] [2020-11-29 22:56:18,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:56:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:56:18,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:56:18,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745089377] [2020-11-29 22:56:18,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:56:18,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:56:18,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791197851] [2020-11-29 22:56:18,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:56:18,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:56:18,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:56:18,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:56:18,968 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand 3 states. [2020-11-29 22:56:18,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:56:18,985 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2020-11-29 22:56:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:56:18,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-29 22:56:18,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:56:18,990 INFO L225 Difference]: With dead ends: 71 [2020-11-29 22:56:18,990 INFO L226 Difference]: Without dead ends: 33 [2020-11-29 22:56:18,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:56:18,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-29 22:56:18,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-29 22:56:18,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-29 22:56:18,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2020-11-29 22:56:18,996 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 19 [2020-11-29 22:56:18,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:56:18,996 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2020-11-29 22:56:18,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:56:18,997 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-11-29 22:56:19,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 22:56:19,003 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:56:19,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:56:19,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:56:19,005 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:56:19,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:56:19,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1180040056, now seen corresponding path program 1 times [2020-11-29 22:56:19,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:56:19,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904582713] [2020-11-29 22:56:19,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:56:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:56:19,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:56:19,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904582713] [2020-11-29 22:56:19,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:56:19,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:56:19,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387474885] [2020-11-29 22:56:19,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:56:19,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:56:19,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:56:19,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:56:19,176 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand 5 states. [2020-11-29 22:56:19,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:56:19,228 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2020-11-29 22:56:19,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:56:19,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-29 22:56:19,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:56:19,230 INFO L225 Difference]: With dead ends: 60 [2020-11-29 22:56:19,230 INFO L226 Difference]: Without dead ends: 33 [2020-11-29 22:56:19,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:56:19,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-29 22:56:19,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-29 22:56:19,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-29 22:56:19,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2020-11-29 22:56:19,236 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 24 [2020-11-29 22:56:19,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:56:19,236 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2020-11-29 22:56:19,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:56:19,237 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2020-11-29 22:56:19,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 22:56:19,237 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:56:19,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:56:19,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 22:56:19,238 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:56:19,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:56:19,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1819191868, now seen corresponding path program 1 times [2020-11-29 22:56:19,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:56:19,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264751504] [2020-11-29 22:56:19,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:56:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:56:19,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:56:19,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264751504] [2020-11-29 22:56:19,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:56:19,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:56:19,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58803828] [2020-11-29 22:56:19,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:56:19,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:56:19,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:56:19,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:56:19,368 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 5 states. [2020-11-29 22:56:19,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:56:19,522 INFO L93 Difference]: Finished difference Result 158 states and 234 transitions. [2020-11-29 22:56:19,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 22:56:19,523 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-29 22:56:19,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:56:19,525 INFO L225 Difference]: With dead ends: 158 [2020-11-29 22:56:19,525 INFO L226 Difference]: Without dead ends: 131 [2020-11-29 22:56:19,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:56:19,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-11-29 22:56:19,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 56. [2020-11-29 22:56:19,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-29 22:56:19,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2020-11-29 22:56:19,539 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 25 [2020-11-29 22:56:19,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:56:19,539 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2020-11-29 22:56:19,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:56:19,539 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2020-11-29 22:56:19,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 22:56:19,541 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:56:19,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:56:19,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 22:56:19,542 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:56:19,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:56:19,542 INFO L82 PathProgramCache]: Analyzing trace with hash 516466438, now seen corresponding path program 1 times [2020-11-29 22:56:19,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:56:19,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068516191] [2020-11-29 22:56:19,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:56:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:56:19,646 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:56:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:56:19,708 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:56:19,759 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:56:19,759 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 22:56:19,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 22:56:19,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:56:19 BoogieIcfgContainer [2020-11-29 22:56:19,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:56:19,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:56:19,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:56:19,877 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:56:19,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:56:18" (3/4) ... [2020-11-29 22:56:19,879 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 22:56:19,983 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_905bff11-f3c6-40d6-aa51-43406c159d63/bin/uautomizer/witness.graphml [2020-11-29 22:56:19,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:56:19,988 INFO L168 Benchmark]: Toolchain (without parser) took 3903.35 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 60.2 MB in the beginning and 46.9 MB in the end (delta: 13.3 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:56:19,988 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory was 55.9 MB in the beginning and 55.9 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:56:19,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.30 ms. Allocated memory is still 94.4 MB. Free memory was 60.0 MB in the beginning and 61.0 MB in the end (delta: -1.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:56:19,990 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.96 ms. Allocated memory is still 94.4 MB. Free memory was 61.0 MB in the beginning and 57.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:56:19,990 INFO L168 Benchmark]: Boogie Preprocessor took 39.72 ms. Allocated memory is still 94.4 MB. Free memory was 57.7 MB in the beginning and 55.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:56:19,991 INFO L168 Benchmark]: RCFGBuilder took 1269.58 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 55.6 MB in the beginning and 61.2 MB in the end (delta: -5.7 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:56:19,991 INFO L168 Benchmark]: TraceAbstraction took 1695.90 ms. Allocated memory is still 113.2 MB. Free memory was 60.6 MB in the beginning and 58.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:56:19,992 INFO L168 Benchmark]: Witness Printer took 109.20 ms. Allocated memory is still 113.2 MB. Free memory was 58.5 MB in the beginning and 46.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:56:19,994 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory was 55.9 MB in the beginning and 55.9 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 712.30 ms. Allocated memory is still 94.4 MB. Free memory was 60.0 MB in the beginning and 61.0 MB in the end (delta: -1.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.96 ms. Allocated memory is still 94.4 MB. Free memory was 61.0 MB in the beginning and 57.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.72 ms. Allocated memory is still 94.4 MB. Free memory was 57.7 MB in the beginning and 55.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1269.58 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 55.6 MB in the beginning and 61.2 MB in the end (delta: -5.7 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1695.90 ms. Allocated memory is still 113.2 MB. Free memory was 60.6 MB in the beginning and 58.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. * Witness Printer took 109.20 ms. Allocated memory is still 113.2 MB. Free memory was 58.5 MB in the beginning and 46.9 MB in the end (delta: 11.6 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: [L133] int pumpRunning = 0; [L134] int systemActive = 1; [L460] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L727] int cleanupTimeShifts = 4; [L823] int waterLevel = 1; [L824] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L800] int retValue_acc ; [L801] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L807] tmp = valid_product() [L809] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L661] int splverifierCounter ; [L662] int tmp ; [L663] int tmp___0 ; [L664] int tmp___1 ; [L665] int tmp___2 ; [L668] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L670] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L672] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L678] tmp = __VERIFIER_nondet_int() [L680] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L841] COND TRUE waterLevel < 2 [L842] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L688] tmp___0 = __VERIFIER_nondet_int() [L690] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L698] tmp___2 = __VERIFIER_nondet_int() [L700] COND TRUE \read(tmp___2) [L286] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L147] COND TRUE \read(systemActive) [L169] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L172] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L93] int tmp ; [L94] int tmp___0 ; [L95] int tmp___1 ; [L862] int retValue_acc ; [L865] retValue_acc = methaneLevelCritical [L866] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L99] tmp = isMethaneLevelCritical() [L101] COND FALSE !(\read(tmp)) [L894] int retValue_acc ; [L897] retValue_acc = waterLevel [L898] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L105] tmp___0 = getWaterLevel() [L107] COND TRUE tmp___0 == 2 [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L109] tmp___1 = isPumpRunning() [L111] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product14.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 260 SDtfs, 334 SDslu, 177 SDs, 0 SdLazy, 39 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3028 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...