./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0 --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 c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:02:13,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:02:13,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:02:13,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:02:13,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:02:13,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:02:13,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:02:13,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:02:13,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:02:13,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:02:13,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:02:13,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:02:13,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:02:13,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:02:13,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:02:13,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:02:13,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:02:13,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:02:13,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:02:13,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:02:13,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:02:13,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:02:13,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:02:13,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:02:13,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:02:13,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:02:13,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:02:13,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:02:13,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:02:13,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:02:13,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:02:13,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:02:13,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:02:13,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:02:13,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:02:13,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:02:13,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:02:13,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:02:13,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:02:13,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:02:13,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:02:13,745 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 15:02:13,793 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:02:13,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:02:13,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:02:13,794 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:02:13,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:02:13,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:02:13,803 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:02:13,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:02:13,803 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:02:13,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:02:13,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:02:13,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:02:13,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:02:13,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:02:13,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:02:13,806 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:02:13,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:02:13,806 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:02:13,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:02:13,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:02:13,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:02:13,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:02:13,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:02:13,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:02:13,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:02:13,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:02:13,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:02:13,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:02:13,809 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:02:13,810 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:02:13,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:02:13,811 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:02:13,811 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_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f [2021-11-22 15:02:14,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:02:14,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:02:14,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:02:14,080 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:02:14,081 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:02:14,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2021-11-22 15:02:14,138 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/data/dc8335430/ebbbcb198f474770af3f11ed2cf08788/FLAGa0c8e9b5c [2021-11-22 15:02:14,752 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:02:14,752 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2021-11-22 15:02:14,775 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/data/dc8335430/ebbbcb198f474770af3f11ed2cf08788/FLAGa0c8e9b5c [2021-11-22 15:02:15,051 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/data/dc8335430/ebbbcb198f474770af3f11ed2cf08788 [2021-11-22 15:02:15,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:02:15,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:02:15,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:02:15,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:02:15,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:02:15,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:02:15" (1/1) ... [2021-11-22 15:02:15,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49fe4d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:02:15, skipping insertion in model container [2021-11-22 15:02:15,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:02:15" (1/1) ... [2021-11-22 15:02:15,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:02:15,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:02:15,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288] [2021-11-22 15:02:15,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:02:15,458 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:02:15,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288] [2021-11-22 15:02:15,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:02:15,581 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:02:15,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:02:15 WrapperNode [2021-11-22 15:02:15,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:02:15,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:02:15,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:02:15,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:02:15,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:02:15" (1/1) ... [2021-11-22 15:02:15,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:02:15" (1/1) ... [2021-11-22 15:02:15,719 INFO L137 Inliner]: procedures = 58, calls = 162, calls flagged for inlining = 59, calls inlined = 143, statements flattened = 1100 [2021-11-22 15:02:15,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:02:15,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:02:15,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:02:15,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:02:15,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:02:15" (1/1) ... [2021-11-22 15:02:15,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:02:15" (1/1) ... [2021-11-22 15:02:15,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:02:15" (1/1) ... [2021-11-22 15:02:15,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:02:15" (1/1) ... [2021-11-22 15:02:15,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:02:15" (1/1) ... [2021-11-22 15:02:15,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:02:15" (1/1) ... [2021-11-22 15:02:15,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:02:15" (1/1) ... [2021-11-22 15:02:15,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:02:15,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:02:15,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:02:15,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:02:15,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:02:15" (1/1) ... [2021-11-22 15:02:15,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:02:15,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:02:15,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:02:15,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:02:15,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:02:15,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:02:15,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:02:15,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:02:16,113 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:02:16,115 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:02:16,997 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:02:17,009 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:02:17,009 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 15:02:17,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:02:17 BoogieIcfgContainer [2021-11-22 15:02:17,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:02:17,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:02:17,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:02:17,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:02:17,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:02:15" (1/3) ... [2021-11-22 15:02:17,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416c24db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:02:17, skipping insertion in model container [2021-11-22 15:02:17,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:02:15" (2/3) ... [2021-11-22 15:02:17,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416c24db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:02:17, skipping insertion in model container [2021-11-22 15:02:17,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:02:17" (3/3) ... [2021-11-22 15:02:17,030 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2021-11-22 15:02:17,041 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:02:17,041 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-22 15:02:17,112 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:02:17,117 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 15:02:17,117 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-22 15:02:17,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 284 states, 280 states have (on average 1.3821428571428571) internal successors, (387), 283 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:17,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-22 15:02:17,145 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:02:17,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:02:17,147 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:02:17,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:02:17,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1207415327, now seen corresponding path program 1 times [2021-11-22 15:02:17,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:02:17,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337422014] [2021-11-22 15:02:17,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:02:17,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:02:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:02:17,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:02:17,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:02:17,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337422014] [2021-11-22 15:02:17,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337422014] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:02:17,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:02:17,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:02:17,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651965161] [2021-11-22 15:02:17,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:02:17,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 15:02:17,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:02:17,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 15:02:17,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:02:17,391 INFO L87 Difference]: Start difference. First operand has 284 states, 280 states have (on average 1.3821428571428571) internal successors, (387), 283 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:17,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:02:17,452 INFO L93 Difference]: Finished difference Result 558 states and 763 transitions. [2021-11-22 15:02:17,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 15:02:17,454 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-22 15:02:17,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:02:17,466 INFO L225 Difference]: With dead ends: 558 [2021-11-22 15:02:17,466 INFO L226 Difference]: Without dead ends: 274 [2021-11-22 15:02:17,471 INFO L932 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 [2021-11-22 15:02:17,475 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:02:17,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:02:17,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-11-22 15:02:17,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-11-22 15:02:17,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 271 states have (on average 1.3616236162361623) internal successors, (369), 273 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:17,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 369 transitions. [2021-11-22 15:02:17,560 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 369 transitions. Word has length 19 [2021-11-22 15:02:17,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:02:17,560 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 369 transitions. [2021-11-22 15:02:17,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:17,561 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 369 transitions. [2021-11-22 15:02:17,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-22 15:02:17,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:02:17,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:02:17,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:02:17,563 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:02:17,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:02:17,564 INFO L85 PathProgramCache]: Analyzing trace with hash -681204731, now seen corresponding path program 1 times [2021-11-22 15:02:17,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:02:17,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343706870] [2021-11-22 15:02:17,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:02:17,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:02:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:02:17,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:02:17,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:02:17,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343706870] [2021-11-22 15:02:17,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343706870] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:02:17,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:02:17,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:02:17,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978670511] [2021-11-22 15:02:17,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:02:17,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:02:17,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:02:17,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:02:17,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:02:17,637 INFO L87 Difference]: Start difference. First operand 274 states and 369 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:17,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:02:17,657 INFO L93 Difference]: Finished difference Result 274 states and 369 transitions. [2021-11-22 15:02:17,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:02:17,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-22 15:02:17,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:02:17,660 INFO L225 Difference]: With dead ends: 274 [2021-11-22 15:02:17,660 INFO L226 Difference]: Without dead ends: 107 [2021-11-22 15:02:17,661 INFO L932 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 [2021-11-22 15:02:17,663 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 135 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:02:17,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 148 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:02:17,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-22 15:02:17,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-22 15:02:17,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.349056603773585) internal successors, (143), 106 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:17,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 143 transitions. [2021-11-22 15:02:17,674 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 143 transitions. Word has length 20 [2021-11-22 15:02:17,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:02:17,675 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 143 transitions. [2021-11-22 15:02:17,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:17,675 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 143 transitions. [2021-11-22 15:02:17,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 15:02:17,677 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:02:17,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:02:17,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:02:17,677 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:02:17,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:02:17,678 INFO L85 PathProgramCache]: Analyzing trace with hash 2021741972, now seen corresponding path program 1 times [2021-11-22 15:02:17,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:02:17,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237896812] [2021-11-22 15:02:17,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:02:17,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:02:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:02:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:02:17,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:02:17,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237896812] [2021-11-22 15:02:17,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237896812] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:02:17,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:02:17,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 15:02:17,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436725935] [2021-11-22 15:02:17,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:02:17,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:02:17,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:02:17,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:02:17,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:02:17,834 INFO L87 Difference]: Start difference. First operand 107 states and 143 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:17,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:02:17,978 INFO L93 Difference]: Finished difference Result 436 states and 592 transitions. [2021-11-22 15:02:17,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 15:02:17,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-22 15:02:17,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:02:17,983 INFO L225 Difference]: With dead ends: 436 [2021-11-22 15:02:17,983 INFO L226 Difference]: Without dead ends: 336 [2021-11-22 15:02:17,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 15:02:17,986 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 786 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:02:17,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [786 Valid, 920 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:02:17,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2021-11-22 15:02:18,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 134. [2021-11-22 15:02:18,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.3609022556390977) internal successors, (181), 133 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:18,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 181 transitions. [2021-11-22 15:02:18,010 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 181 transitions. Word has length 27 [2021-11-22 15:02:18,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:02:18,011 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 181 transitions. [2021-11-22 15:02:18,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:18,011 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 181 transitions. [2021-11-22 15:02:18,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-22 15:02:18,013 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:02:18,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:02:18,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:02:18,014 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:02:18,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:02:18,014 INFO L85 PathProgramCache]: Analyzing trace with hash 872593770, now seen corresponding path program 1 times [2021-11-22 15:02:18,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:02:18,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009663464] [2021-11-22 15:02:18,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:02:18,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:02:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:02:18,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:02:18,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:02:18,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009663464] [2021-11-22 15:02:18,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009663464] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:02:18,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:02:18,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:02:18,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852282199] [2021-11-22 15:02:18,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:02:18,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 15:02:18,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:02:18,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 15:02:18,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:02:18,128 INFO L87 Difference]: Start difference. First operand 134 states and 181 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:18,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:02:18,368 INFO L93 Difference]: Finished difference Result 816 states and 1124 transitions. [2021-11-22 15:02:18,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:02:18,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-22 15:02:18,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:02:18,374 INFO L225 Difference]: With dead ends: 816 [2021-11-22 15:02:18,375 INFO L226 Difference]: Without dead ends: 689 [2021-11-22 15:02:18,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 15:02:18,388 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 817 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:02:18,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [817 Valid, 869 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:02:18,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2021-11-22 15:02:18,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 251. [2021-11-22 15:02:18,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 250 states have (on average 1.336) internal successors, (334), 250 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:18,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 334 transitions. [2021-11-22 15:02:18,434 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 334 transitions. Word has length 30 [2021-11-22 15:02:18,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:02:18,434 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 334 transitions. [2021-11-22 15:02:18,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:18,435 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 334 transitions. [2021-11-22 15:02:18,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-22 15:02:18,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:02:18,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:02:18,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 15:02:18,438 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:02:18,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:02:18,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1333532687, now seen corresponding path program 1 times [2021-11-22 15:02:18,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:02:18,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136426339] [2021-11-22 15:02:18,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:02:18,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:02:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:02:18,460 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:02:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:02:18,524 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:02:18,525 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 15:02:18,526 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-22 15:02:18,528 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-22 15:02:18,528 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-22 15:02:18,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 15:02:18,535 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-22 15:02:18,539 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 15:02:18,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 03:02:18 BoogieIcfgContainer [2021-11-22 15:02:18,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 15:02:18,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:02:18,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:02:18,617 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:02:18,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:02:17" (3/4) ... [2021-11-22 15:02:18,619 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 15:02:18,670 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 15:02:18,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:02:18,671 INFO L158 Benchmark]: Toolchain (without parser) took 3613.22ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 58.9MB in the beginning and 61.2MB in the end (delta: -2.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-22 15:02:18,671 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 90.2MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:02:18,672 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.78ms. Allocated memory is still 90.2MB. Free memory was 58.5MB in the beginning and 39.4MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-22 15:02:18,672 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.55ms. Allocated memory is still 90.2MB. Free memory was 39.4MB in the beginning and 34.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 15:02:18,673 INFO L158 Benchmark]: Boogie Preprocessor took 109.96ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 34.6MB in the beginning and 94.6MB in the end (delta: -60.0MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2021-11-22 15:02:18,673 INFO L158 Benchmark]: RCFGBuilder took 1188.97ms. Allocated memory is still 119.5MB. Free memory was 94.6MB in the beginning and 60.0MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-11-22 15:02:18,674 INFO L158 Benchmark]: TraceAbstraction took 1592.25ms. Allocated memory is still 119.5MB. Free memory was 59.7MB in the beginning and 64.4MB in the end (delta: -4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:02:18,674 INFO L158 Benchmark]: Witness Printer took 54.08ms. Allocated memory is still 119.5MB. Free memory was 64.4MB in the beginning and 61.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:02:18,676 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 90.2MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 521.78ms. Allocated memory is still 90.2MB. Free memory was 58.5MB in the beginning and 39.4MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 134.55ms. Allocated memory is still 90.2MB. Free memory was 39.4MB in the beginning and 34.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.96ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 34.6MB in the beginning and 94.6MB in the end (delta: -60.0MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * RCFGBuilder took 1188.97ms. Allocated memory is still 119.5MB. Free memory was 94.6MB in the beginning and 60.0MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1592.25ms. Allocated memory is still 119.5MB. Free memory was 59.7MB in the beginning and 64.4MB in the end (delta: -4.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 54.08ms. Allocated memory is still 119.5MB. Free memory was 64.4MB in the beginning and 61.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1023]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int waterLevel = 1; [L598] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L960] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L962] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L968] tmp = __VERIFIER_nondet_int() [L970] COND TRUE \read(tmp) [L972] CALL waterRise() [L615] COND TRUE waterLevel < 2 [L616] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L972] RET waterRise() [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND FALSE !(\read(tmp___2)) [L996] tmp___1 = __VERIFIER_nondet_int() [L998] COND TRUE \read(tmp___1) [L1000] CALL stopSystem() [L930] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L937] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1000] RET stopSystem() [L1007] CALL timeShift() [L711] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L718] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L726] CALL __utac_acc__Specification3_spec__1() [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; [L566] CALL, EXPR isMethaneLevelCritical() [L636] int retValue_acc ; [L639] retValue_acc = methaneLevelCritical [L640] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L566] RET, EXPR isMethaneLevelCritical() [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L572] CALL, EXPR getWaterLevel() [L668] int retValue_acc ; [L671] retValue_acc = waterLevel [L672] return (retValue_acc); VAL [\result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L572] RET, EXPR getWaterLevel() [L572] tmp___0 = getWaterLevel() [L574] COND TRUE tmp___0 == 2 [L576] CALL, EXPR isPumpRunning() [L844] int retValue_acc ; [L847] retValue_acc = pumpRunning [L848] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L576] RET, EXPR isPumpRunning() [L576] tmp___1 = isPumpRunning() [L578] COND FALSE !(\read(tmp___1)) [L582] CALL __automaton_fail() [L1023] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 1023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1738 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1738 mSDsluCounter, 2314 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1390 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 109 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 924 mSDtfsCounter, 109 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=284occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 640 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 197 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! [2021-11-22 15:02:18,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbb9eb-ed9d-49c2-a27e-dcca7cdaaea9/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE