./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product06.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_c27dfd32-a30e-4109-9900-04e74ee6cdfc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c27dfd32-a30e-4109-9900-04e74ee6cdfc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c27dfd32-a30e-4109-9900-04e74ee6cdfc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c27dfd32-a30e-4109-9900-04e74ee6cdfc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c27dfd32-a30e-4109-9900-04e74ee6cdfc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c27dfd32-a30e-4109-9900-04e74ee6cdfc/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 daa9da8859207d10d864ef24e046b0be94d62d80 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 22:53:15,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:53:15,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:53:15,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:53:15,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:53:15,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:53:15,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:53:15,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:53:15,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:53:15,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:53:15,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:53:15,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:53:15,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:53:15,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:53:15,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:53:15,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:53:15,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:53:15,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:53:15,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:53:15,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:53:15,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:53:15,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:53:15,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:53:15,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:53:15,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:53:15,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:53:15,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:53:15,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:53:15,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:53:15,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:53:15,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:53:15,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:53:15,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:53:15,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:53:15,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:53:15,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:53:15,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:53:15,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:53:15,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:53:15,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:53:15,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:53:15,944 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c27dfd32-a30e-4109-9900-04e74ee6cdfc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:53:15,984 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:53:15,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:53:15,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:53:15,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:53:15,987 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:53:15,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:53:15,988 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:53:15,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:53:15,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:53:15,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:53:15,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:53:15,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:53:15,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:53:15,990 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:53:15,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:53:15,991 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:53:15,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:53:15,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:53:15,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:53:15,991 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:53:15,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:53:15,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:53:15,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:53:15,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:53:15,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:53:15,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:53:15,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:53:15,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:53:15,993 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:53:15,994 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_c27dfd32-a30e-4109-9900-04e74ee6cdfc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c27dfd32-a30e-4109-9900-04e74ee6cdfc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> daa9da8859207d10d864ef24e046b0be94d62d80 [2020-11-29 22:53:16,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:53:16,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:53:16,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:53:16,361 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:53:16,363 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:53:16,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c27dfd32-a30e-4109-9900-04e74ee6cdfc/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c [2020-11-29 22:53:16,438 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c27dfd32-a30e-4109-9900-04e74ee6cdfc/bin/uautomizer/data/979284e80/fe3147dd748848daa7f18f6573bf920e/FLAGf72d5fc06 [2020-11-29 22:53:17,176 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:53:17,179 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c27dfd32-a30e-4109-9900-04e74ee6cdfc/sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c [2020-11-29 22:53:17,202 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c27dfd32-a30e-4109-9900-04e74ee6cdfc/bin/uautomizer/data/979284e80/fe3147dd748848daa7f18f6573bf920e/FLAGf72d5fc06 [2020-11-29 22:53:17,443 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c27dfd32-a30e-4109-9900-04e74ee6cdfc/bin/uautomizer/data/979284e80/fe3147dd748848daa7f18f6573bf920e [2020-11-29 22:53:17,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:53:17,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:53:17,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:53:17,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:53:17,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:53:17,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:53:17" (1/1) ... [2020-11-29 22:53:17,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40dfc2ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:53:17, skipping insertion in model container [2020-11-29 22:53:17,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:53:17" (1/1) ... [2020-11-29 22:53:17,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:53:17,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:53:18,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:53:18,050 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:53:18,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:53:18,218 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:53:18,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:53:18 WrapperNode [2020-11-29 22:53:18,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:53:18,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:53:18,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:53:18,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:53:18,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:53:18" (1/1) ... [2020-11-29 22:53:18,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:53:18" (1/1) ... [2020-11-29 22:53:18,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:53:18,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:53:18,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:53:18,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:53:18,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:53:18" (1/1) ... [2020-11-29 22:53:18,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:53:18" (1/1) ... [2020-11-29 22:53:18,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:53:18" (1/1) ... [2020-11-29 22:53:18,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:53:18" (1/1) ... [2020-11-29 22:53:18,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:53:18" (1/1) ... [2020-11-29 22:53:18,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:53:18" (1/1) ... [2020-11-29 22:53:18,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:53:18" (1/1) ... [2020-11-29 22:53:18,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:53:18,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:53:18,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:53:18,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:53:18,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:53:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c27dfd32-a30e-4109-9900-04e74ee6cdfc/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 22:53:18,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:53:18,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:53:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:53:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:53:19,539 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:53:19,540 INFO L298 CfgBuilder]: Removed 110 assume(true) statements. [2020-11-29 22:53:19,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:53:19 BoogieIcfgContainer [2020-11-29 22:53:19,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:53:19,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:53:19,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:53:19,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:53:19,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:53:17" (1/3) ... [2020-11-29 22:53:19,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1605de22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:53:19, skipping insertion in model container [2020-11-29 22:53:19,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:53:18" (2/3) ... [2020-11-29 22:53:19,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1605de22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:53:19, skipping insertion in model container [2020-11-29 22:53:19,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:53:19" (3/3) ... [2020-11-29 22:53:19,555 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c [2020-11-29 22:53:19,568 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:53:19,573 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 22:53:19,586 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 22:53:19,626 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:53:19,626 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:53:19,626 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:53:19,627 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:53:19,627 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:53:19,627 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:53:19,627 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:53:19,627 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:53:19,676 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2020-11-29 22:53:19,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 22:53:19,682 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:53:19,684 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 22:53:19,684 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:53:19,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:53:19,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1323954982, now seen corresponding path program 1 times [2020-11-29 22:53:19,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:53:19,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349137375] [2020-11-29 22:53:19,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:53:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:53:20,002 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 22:53:20,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349137375] [2020-11-29 22:53:20,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:53:20,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:53:20,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539838433] [2020-11-29 22:53:20,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 22:53:20,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:53:20,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:53:20,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:53:20,027 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2020-11-29 22:53:20,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:53:20,052 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2020-11-29 22:53:20,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:53:20,053 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-29 22:53:20,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:53:20,063 INFO L225 Difference]: With dead ends: 147 [2020-11-29 22:53:20,064 INFO L226 Difference]: Without dead ends: 71 [2020-11-29 22:53:20,067 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 22:53:20,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-29 22:53:20,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-29 22:53:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-29 22:53:20,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2020-11-29 22:53:20,111 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 18 [2020-11-29 22:53:20,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:53:20,111 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-11-29 22:53:20,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 22:53:20,112 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2020-11-29 22:53:20,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 22:53:20,113 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:53:20,114 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 22:53:20,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:53:20,114 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:53:20,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:53:20,115 INFO L82 PathProgramCache]: Analyzing trace with hash 412924229, now seen corresponding path program 1 times [2020-11-29 22:53:20,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:53:20,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600844164] [2020-11-29 22:53:20,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:53:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:53:20,258 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 22:53:20,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600844164] [2020-11-29 22:53:20,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:53:20,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:53:20,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545859729] [2020-11-29 22:53:20,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:53:20,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:53:20,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:53:20,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:53:20,262 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand 3 states. [2020-11-29 22:53:20,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:53:20,305 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2020-11-29 22:53:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:53:20,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-29 22:53:20,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:53:20,307 INFO L225 Difference]: With dead ends: 71 [2020-11-29 22:53:20,308 INFO L226 Difference]: Without dead ends: 33 [2020-11-29 22:53:20,309 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 22:53:20,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-29 22:53:20,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-29 22:53:20,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-29 22:53:20,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2020-11-29 22:53:20,320 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 19 [2020-11-29 22:53:20,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:53:20,321 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2020-11-29 22:53:20,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:53:20,322 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-11-29 22:53:20,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 22:53:20,323 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:53:20,324 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 22:53:20,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:53:20,325 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:53:20,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:53:20,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1180040056, now seen corresponding path program 1 times [2020-11-29 22:53:20,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:53:20,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036365939] [2020-11-29 22:53:20,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:53:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:53:20,467 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 22:53:20,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036365939] [2020-11-29 22:53:20,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:53:20,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:53:20,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193781221] [2020-11-29 22:53:20,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:53:20,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:53:20,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:53:20,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:53:20,470 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand 5 states. [2020-11-29 22:53:20,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:53:20,556 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2020-11-29 22:53:20,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:53:20,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-29 22:53:20,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:53:20,560 INFO L225 Difference]: With dead ends: 60 [2020-11-29 22:53:20,561 INFO L226 Difference]: Without dead ends: 33 [2020-11-29 22:53:20,562 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 22:53:20,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-29 22:53:20,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-29 22:53:20,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-29 22:53:20,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2020-11-29 22:53:20,576 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 24 [2020-11-29 22:53:20,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:53:20,577 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2020-11-29 22:53:20,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:53:20,578 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2020-11-29 22:53:20,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 22:53:20,580 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:53:20,580 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 22:53:20,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 22:53:20,581 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:53:20,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:53:20,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1819191868, now seen corresponding path program 1 times [2020-11-29 22:53:20,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:53:20,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805167980] [2020-11-29 22:53:20,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:53:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:53:20,758 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 22:53:20,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805167980] [2020-11-29 22:53:20,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:53:20,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:53:20,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036786407] [2020-11-29 22:53:20,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:53:20,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:53:20,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:53:20,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:53:20,761 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 5 states. [2020-11-29 22:53:20,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:53:20,933 INFO L93 Difference]: Finished difference Result 158 states and 234 transitions. [2020-11-29 22:53:20,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 22:53:20,936 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-29 22:53:20,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:53:20,938 INFO L225 Difference]: With dead ends: 158 [2020-11-29 22:53:20,939 INFO L226 Difference]: Without dead ends: 131 [2020-11-29 22:53:20,939 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 22:53:20,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-11-29 22:53:20,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 56. [2020-11-29 22:53:20,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-29 22:53:20,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2020-11-29 22:53:20,963 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 25 [2020-11-29 22:53:20,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:53:20,964 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2020-11-29 22:53:20,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:53:20,964 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2020-11-29 22:53:20,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 22:53:20,965 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:53:20,965 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 22:53:20,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 22:53:20,966 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:53:20,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:53:20,971 INFO L82 PathProgramCache]: Analyzing trace with hash 516466438, now seen corresponding path program 1 times [2020-11-29 22:53:20,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:53:20,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953270988] [2020-11-29 22:53:20,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:53:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:53:21,092 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:53:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:53:21,191 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:53:21,251 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:53:21,252 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 22:53:21,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 22:53:21,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:53:21 BoogieIcfgContainer [2020-11-29 22:53:21,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:53:21,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:53:21,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:53:21,387 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:53:21,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:53:19" (3/4) ... [2020-11-29 22:53:21,390 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 22:53:21,505 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c27dfd32-a30e-4109-9900-04e74ee6cdfc/bin/uautomizer/witness.graphml [2020-11-29 22:53:21,507 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:53:21,510 INFO L168 Benchmark]: Toolchain (without parser) took 4060.86 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 68.2 MB in the beginning and 86.5 MB in the end (delta: -18.3 MB). Peak memory consumption was 53.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:53:21,513 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 96.5 MB. Free memory was 55.7 MB in the beginning and 55.6 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:53:21,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.45 ms. Allocated memory is still 96.5 MB. Free memory was 68.0 MB in the beginning and 64.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:53:21,517 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.65 ms. Allocated memory is still 96.5 MB. Free memory was 64.3 MB in the beginning and 61.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:53:21,518 INFO L168 Benchmark]: Boogie Preprocessor took 67.08 ms. Allocated memory is still 96.5 MB. Free memory was 61.1 MB in the beginning and 59.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:53:21,518 INFO L168 Benchmark]: RCFGBuilder took 1155.39 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 59.0 MB in the beginning and 59.8 MB in the end (delta: -772.9 kB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:53:21,519 INFO L168 Benchmark]: TraceAbstraction took 1840.03 ms. Allocated memory is still 117.4 MB. Free memory was 59.2 MB in the beginning and 46.9 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-11-29 22:53:21,520 INFO L168 Benchmark]: Witness Printer took 121.52 ms. Allocated memory is still 117.4 MB. Free memory was 46.9 MB in the beginning and 86.5 MB in the end (delta: -39.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:53:21,524 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 96.5 MB. Free memory was 55.7 MB in the beginning and 55.6 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 769.45 ms. Allocated memory is still 96.5 MB. Free memory was 68.0 MB in the beginning and 64.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 97.65 ms. Allocated memory is still 96.5 MB. Free memory was 64.3 MB in the beginning and 61.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.08 ms. Allocated memory is still 96.5 MB. Free memory was 61.1 MB in the beginning and 59.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1155.39 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 59.0 MB in the beginning and 59.8 MB in the end (delta: -772.9 kB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1840.03 ms. Allocated memory is still 117.4 MB. Free memory was 59.2 MB in the beginning and 46.9 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Witness Printer took 121.52 ms. Allocated memory is still 117.4 MB. Free memory was 46.9 MB in the beginning and 86.5 MB in the end (delta: -39.6 MB). Peak memory consumption was 9.7 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: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L311] int waterLevel = 1; [L312] int methaneLevelCritical = 0; [L391] int cleanupTimeShifts = 4; [L656] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L464] int retValue_acc ; [L465] 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] [L471] tmp = valid_product() [L473] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L244] int splverifierCounter ; [L245] int tmp ; [L246] int tmp___0 ; [L247] int tmp___1 ; [L248] int tmp___2 ; [L251] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L253] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L255] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L261] tmp = __VERIFIER_nondet_int() [L263] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L329] COND TRUE waterLevel < 2 [L330] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L271] tmp___0 = __VERIFIER_nondet_int() [L273] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L281] tmp___2 = __VERIFIER_nondet_int() [L283] COND TRUE \read(tmp___2) [L235] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L106] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L113] COND TRUE \read(systemActive) [L135] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L138] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L854] int tmp ; [L855] int tmp___0 ; [L856] int tmp___1 ; [L350] int retValue_acc ; [L353] retValue_acc = methaneLevelCritical [L354] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L860] tmp = isMethaneLevelCritical() [L862] COND FALSE !(\read(tmp)) [L382] int retValue_acc ; [L385] retValue_acc = waterLevel [L386] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L866] tmp___0 = getWaterLevel() [L868] COND TRUE tmp___0 == 2 [L187] int retValue_acc ; [L190] retValue_acc = pumpRunning [L191] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L870] tmp___1 = isPumpRunning() [L872] 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_product06.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: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, 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, 0.1s 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, 0.4s 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...