./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G --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 cbe5945de1191725858dff519e245e0ce7f71deac0a58ccc85d416ae53ad1824 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:28:10,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:28:10,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:28:10,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:28:10,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:28:10,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:28:10,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:28:10,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:28:10,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:28:10,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:28:10,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:28:10,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:28:10,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:28:10,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:28:10,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:28:10,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:28:10,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:28:10,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:28:10,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:28:10,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:28:10,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:28:10,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:28:10,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:28:10,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:28:10,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:28:10,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:28:10,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:28:10,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:28:10,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:28:10,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:28:10,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:28:10,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:28:10,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:28:10,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:28:10,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:28:10,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:28:10,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:28:10,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:28:10,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:28:10,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:28:10,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:28:10,792 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 13:28:10,827 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:28:10,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:28:10,828 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:28:10,828 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:28:10,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:28:10,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:28:10,831 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:28:10,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:28:10,831 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:28:10,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:28:10,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:28:10,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:28:10,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:28:10,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:28:10,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:28:10,834 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:28:10,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:28:10,834 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:28:10,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:28:10,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:28:10,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:28:10,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:28:10,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:28:10,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:28:10,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:28:10,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:28:10,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:28:10,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:28:10,838 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:28:10,838 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:28:10,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:28:10,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:28:10,839 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_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbe5945de1191725858dff519e245e0ce7f71deac0a58ccc85d416ae53ad1824 [2021-11-23 13:28:11,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:28:11,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:28:11,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:28:11,203 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:28:11,204 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:28:11,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2021-11-23 13:28:11,285 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/data/57a02c26f/d41bd17adf0347468bee14a590a1b5fc/FLAGc30797df7 [2021-11-23 13:28:11,975 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:28:11,978 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2021-11-23 13:28:12,005 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/data/57a02c26f/d41bd17adf0347468bee14a590a1b5fc/FLAGc30797df7 [2021-11-23 13:28:12,172 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/data/57a02c26f/d41bd17adf0347468bee14a590a1b5fc [2021-11-23 13:28:12,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:28:12,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:28:12,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:28:12,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:28:12,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:28:12,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:28:12" (1/1) ... [2021-11-23 13:28:12,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1802bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:28:12, skipping insertion in model container [2021-11-23 13:28:12,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:28:12" (1/1) ... [2021-11-23 13:28:12,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:28:12,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:28:12,604 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_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c[15274,15287] [2021-11-23 13:28:12,634 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:28:12,648 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:28:12,743 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_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c[15274,15287] [2021-11-23 13:28:12,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:28:12,784 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:28:12,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:28:12 WrapperNode [2021-11-23 13:28:12,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:28:12,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:28:12,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:28:12,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:28:12,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:28:12" (1/1) ... [2021-11-23 13:28:12,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:28:12" (1/1) ... [2021-11-23 13:28:12,899 INFO L137 Inliner]: procedures = 56, calls = 159, calls flagged for inlining = 56, calls inlined = 83, statements flattened = 632 [2021-11-23 13:28:12,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:28:12,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:28:12,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:28:12,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:28:12,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:28:12" (1/1) ... [2021-11-23 13:28:12,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:28:12" (1/1) ... [2021-11-23 13:28:12,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:28:12" (1/1) ... [2021-11-23 13:28:12,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:28:12" (1/1) ... [2021-11-23 13:28:12,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:28:12" (1/1) ... [2021-11-23 13:28:12,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:28:12" (1/1) ... [2021-11-23 13:28:12,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:28:12" (1/1) ... [2021-11-23 13:28:12,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:28:12,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:28:12,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:28:12,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:28:12,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:28:12" (1/1) ... [2021-11-23 13:28:13,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:28:13,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:28:13,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:28:13,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:28:13,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:28:13,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:28:13,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:28:13,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:28:13,254 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:28:13,256 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:28:13,989 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:28:14,004 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:28:14,004 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 13:28:14,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:28:14 BoogieIcfgContainer [2021-11-23 13:28:14,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:28:14,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:28:14,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:28:14,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:28:14,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:28:12" (1/3) ... [2021-11-23 13:28:14,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339214b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:28:14, skipping insertion in model container [2021-11-23 13:28:14,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:28:12" (2/3) ... [2021-11-23 13:28:14,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339214b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:28:14, skipping insertion in model container [2021-11-23 13:28:14,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:28:14" (3/3) ... [2021-11-23 13:28:14,017 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2021-11-23 13:28:14,023 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:28:14,023 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-23 13:28:14,088 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:28:14,097 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 [2021-11-23 13:28:14,098 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-23 13:28:14,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 160 states have (on average 1.36875) internal successors, (219), 163 states have internal predecessors, (219), 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) [2021-11-23 13:28:14,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 13:28:14,133 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:28:14,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:28:14,134 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:28:14,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:28:14,142 INFO L85 PathProgramCache]: Analyzing trace with hash -615397935, now seen corresponding path program 1 times [2021-11-23 13:28:14,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:28:14,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943658898] [2021-11-23 13:28:14,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:28:14,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:28:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:28:14,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:28:14,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:28:14,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943658898] [2021-11-23 13:28:14,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943658898] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:28:14,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:28:14,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:28:14,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409873540] [2021-11-23 13:28:14,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:28:14,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:28:14,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:28:14,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:28:14,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:28:14,634 INFO L87 Difference]: Start difference. First operand has 164 states, 160 states have (on average 1.36875) internal successors, (219), 163 states have internal predecessors, (219), 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) [2021-11-23 13:28:14,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:28:14,717 INFO L93 Difference]: Finished difference Result 318 states and 427 transitions. [2021-11-23 13:28:14,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:28:14,720 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 [2021-11-23 13:28:14,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:28:14,734 INFO L225 Difference]: With dead ends: 318 [2021-11-23 13:28:14,734 INFO L226 Difference]: Without dead ends: 154 [2021-11-23 13:28:14,739 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 [2021-11-23 13:28:14,744 INFO L933 BasicCegarLoop]: 209 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, 209 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 [2021-11-23 13:28:14,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:28:14,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-23 13:28:14,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-11-23 13:28:14,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 151 states have (on average 1.3311258278145695) internal successors, (201), 153 states have internal predecessors, (201), 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) [2021-11-23 13:28:14,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 201 transitions. [2021-11-23 13:28:14,806 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 201 transitions. Word has length 19 [2021-11-23 13:28:14,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:28:14,806 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 201 transitions. [2021-11-23 13:28:14,807 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) [2021-11-23 13:28:14,807 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 201 transitions. [2021-11-23 13:28:14,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 13:28:14,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:28:14,809 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] [2021-11-23 13:28:14,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:28:14,810 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:28:14,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:28:14,811 INFO L85 PathProgramCache]: Analyzing trace with hash -89187339, now seen corresponding path program 1 times [2021-11-23 13:28:14,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:28:14,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416967253] [2021-11-23 13:28:14,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:28:14,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:28:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:28:14,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:28:14,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:28:14,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416967253] [2021-11-23 13:28:14,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416967253] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:28:14,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:28:14,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:28:14,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933638906] [2021-11-23 13:28:14,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:28:14,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:28:14,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:28:14,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:28:14,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:28:14,962 INFO L87 Difference]: Start difference. First operand 154 states and 201 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) [2021-11-23 13:28:15,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:28:15,008 INFO L93 Difference]: Finished difference Result 154 states and 201 transitions. [2021-11-23 13:28:15,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:28:15,010 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 [2021-11-23 13:28:15,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:28:15,014 INFO L225 Difference]: With dead ends: 154 [2021-11-23 13:28:15,016 INFO L226 Difference]: Without dead ends: 67 [2021-11-23 13:28:15,017 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 [2021-11-23 13:28:15,020 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 79 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 92 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 [2021-11-23 13:28:15,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 92 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:28:15,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-11-23 13:28:15,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-11-23 13:28:15,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 66 states have internal predecessors, (87), 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) [2021-11-23 13:28:15,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2021-11-23 13:28:15,042 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 20 [2021-11-23 13:28:15,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:28:15,043 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2021-11-23 13:28:15,044 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) [2021-11-23 13:28:15,044 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2021-11-23 13:28:15,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 13:28:15,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:28:15,046 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] [2021-11-23 13:28:15,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:28:15,047 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:28:15,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:28:15,048 INFO L85 PathProgramCache]: Analyzing trace with hash 2053609740, now seen corresponding path program 1 times [2021-11-23 13:28:15,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:28:15,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783865698] [2021-11-23 13:28:15,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:28:15,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:28:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:28:15,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:28:15,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:28:15,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783865698] [2021-11-23 13:28:15,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783865698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:28:15,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:28:15,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 13:28:15,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166739060] [2021-11-23 13:28:15,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:28:15,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:28:15,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:28:15,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:28:15,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:28:15,179 INFO L87 Difference]: Start difference. First operand 67 states and 87 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) [2021-11-23 13:28:15,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:28:15,340 INFO L93 Difference]: Finished difference Result 276 states and 368 transitions. [2021-11-23 13:28:15,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:28:15,341 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 [2021-11-23 13:28:15,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:28:15,345 INFO L225 Difference]: With dead ends: 276 [2021-11-23 13:28:15,345 INFO L226 Difference]: Without dead ends: 216 [2021-11-23 13:28:15,346 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 [2021-11-23 13:28:15,348 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 378 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:28:15,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [378 Valid, 625 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:28:15,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-23 13:28:15,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 94. [2021-11-23 13:28:15,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.3440860215053763) internal successors, (125), 93 states have internal predecessors, (125), 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) [2021-11-23 13:28:15,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 125 transitions. [2021-11-23 13:28:15,380 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 125 transitions. Word has length 27 [2021-11-23 13:28:15,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:28:15,380 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 125 transitions. [2021-11-23 13:28:15,381 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) [2021-11-23 13:28:15,381 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 125 transitions. [2021-11-23 13:28:15,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 13:28:15,383 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:28:15,383 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] [2021-11-23 13:28:15,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 13:28:15,384 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:28:15,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:28:15,385 INFO L85 PathProgramCache]: Analyzing trace with hash 904461538, now seen corresponding path program 1 times [2021-11-23 13:28:15,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:28:15,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898071607] [2021-11-23 13:28:15,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:28:15,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:28:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:28:15,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:28:15,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:28:15,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898071607] [2021-11-23 13:28:15,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898071607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:28:15,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:28:15,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:28:15,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772022396] [2021-11-23 13:28:15,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:28:15,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:28:15,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:28:15,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:28:15,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:28:15,566 INFO L87 Difference]: Start difference. First operand 94 states and 125 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) [2021-11-23 13:28:15,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:28:15,825 INFO L93 Difference]: Finished difference Result 647 states and 878 transitions. [2021-11-23 13:28:15,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:28:15,826 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 [2021-11-23 13:28:15,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:28:15,831 INFO L225 Difference]: With dead ends: 647 [2021-11-23 13:28:15,832 INFO L226 Difference]: Without dead ends: 560 [2021-11-23 13:28:15,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:28:15,835 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 459 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:28:15,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [459 Valid, 678 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:28:15,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-11-23 13:28:15,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 173. [2021-11-23 13:28:15,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 172 states have (on average 1.3372093023255813) internal successors, (230), 172 states have internal predecessors, (230), 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) [2021-11-23 13:28:15,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 230 transitions. [2021-11-23 13:28:15,877 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 230 transitions. Word has length 30 [2021-11-23 13:28:15,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:28:15,878 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 230 transitions. [2021-11-23 13:28:15,878 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) [2021-11-23 13:28:15,878 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 230 transitions. [2021-11-23 13:28:15,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 13:28:15,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:28:15,881 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] [2021-11-23 13:28:15,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 13:28:15,882 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:28:15,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:28:15,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1365400455, now seen corresponding path program 1 times [2021-11-23 13:28:15,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:28:15,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220662216] [2021-11-23 13:28:15,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:28:15,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:28:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:28:15,941 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:28:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:28:16,008 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:28:16,009 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 13:28:16,010 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-23 13:28:16,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-23 13:28:16,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-23 13:28:16,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 13:28:16,018 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-23 13:28:16,023 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:28:16,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:28:16 BoogieIcfgContainer [2021-11-23 13:28:16,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:28:16,083 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:28:16,083 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:28:16,084 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:28:16,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:28:14" (3/4) ... [2021-11-23 13:28:16,086 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 13:28:16,193 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 13:28:16,193 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:28:16,194 INFO L158 Benchmark]: Toolchain (without parser) took 4016.54ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 50.4MB in the beginning and 46.8MB in the end (delta: 3.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2021-11-23 13:28:16,195 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 88.1MB. Free memory was 68.0MB in the beginning and 67.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:28:16,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.96ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 50.2MB in the beginning and 76.5MB in the end (delta: -26.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 13:28:16,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.58ms. Allocated memory is still 109.1MB. Free memory was 76.0MB in the beginning and 72.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 13:28:16,197 INFO L158 Benchmark]: Boogie Preprocessor took 68.70ms. Allocated memory is still 109.1MB. Free memory was 72.3MB in the beginning and 70.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:28:16,197 INFO L158 Benchmark]: RCFGBuilder took 1036.32ms. Allocated memory is still 109.1MB. Free memory was 70.2MB in the beginning and 46.6MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-23 13:28:16,198 INFO L158 Benchmark]: TraceAbstraction took 2074.78ms. Allocated memory is still 109.1MB. Free memory was 46.6MB in the beginning and 51.1MB in the end (delta: -4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:28:16,198 INFO L158 Benchmark]: Witness Printer took 110.02ms. Allocated memory is still 109.1MB. Free memory was 50.4MB in the beginning and 46.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:28:16,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 88.1MB. Free memory was 68.0MB in the beginning and 67.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.96ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 50.2MB in the beginning and 76.5MB in the end (delta: -26.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.58ms. Allocated memory is still 109.1MB. Free memory was 76.0MB in the beginning and 72.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.70ms. Allocated memory is still 109.1MB. Free memory was 72.3MB in the beginning and 70.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1036.32ms. Allocated memory is still 109.1MB. Free memory was 70.2MB in the beginning and 46.6MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2074.78ms. Allocated memory is still 109.1MB. Free memory was 46.6MB in the beginning and 51.1MB in the end (delta: -4.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 110.02ms. Allocated memory is still 109.1MB. Free memory was 50.4MB in the beginning and 46.8MB in the end (delta: 3.5MB). 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: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L499] int pumpRunning = 0; [L500] int systemActive = 1; [L727] int cleanupTimeShifts = 4; [L896] int waterLevel = 1; [L897] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L803] int retValue_acc ; [L804] int tmp ; [L808] FCALL select_helpers() [L809] FCALL select_features() [L810] CALL, EXPR valid_product() [L887] int retValue_acc ; [L890] retValue_acc = 1 [L891] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L810] RET, EXPR valid_product() [L810] tmp = valid_product() [L812] COND TRUE \read(tmp) [L814] FCALL setup() [L815] CALL runTest() [L794] CALL test() [L423] int splverifierCounter ; [L424] int tmp ; [L425] int tmp___0 ; [L426] int tmp___1 ; [L427] int tmp___2 ; [L430] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L432] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L434] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L440] tmp = __VERIFIER_nondet_int() [L442] COND TRUE \read(tmp) [L444] CALL waterRise() [L914] COND TRUE waterLevel < 2 [L915] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L444] RET waterRise() [L450] tmp___0 = __VERIFIER_nondet_int() [L452] 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] [L460] tmp___2 = __VERIFIER_nondet_int() [L462] COND FALSE !(\read(tmp___2)) [L468] tmp___1 = __VERIFIER_nondet_int() [L470] COND TRUE \read(tmp___1) [L472] CALL stopSystem() [L698] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L705] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L472] RET stopSystem() [L479] CALL timeShift() [L507] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L514] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L522] CALL __utac_acc__Specification3_spec__1() [L828] int tmp ; [L829] int tmp___0 ; [L830] int tmp___1 ; [L834] CALL, EXPR isMethaneLevelCritical() [L935] int retValue_acc ; [L938] retValue_acc = methaneLevelCritical [L939] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L834] RET, EXPR isMethaneLevelCritical() [L834] tmp = isMethaneLevelCritical() [L836] COND FALSE !(\read(tmp)) [L840] CALL, EXPR getWaterLevel() [L967] int retValue_acc ; [L970] retValue_acc = waterLevel [L971] return (retValue_acc); VAL [\result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L840] RET, EXPR getWaterLevel() [L840] tmp___0 = getWaterLevel() [L842] COND TRUE tmp___0 == 2 [L844] CALL, EXPR isPumpRunning() [L631] int retValue_acc ; [L634] retValue_acc = pumpRunning [L635] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L844] RET, EXPR isPumpRunning() [L844] tmp___1 = isPumpRunning() [L846] COND FALSE !(\read(tmp___1)) [L850] CALL __automaton_fail() [L722] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 722]: 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: 722]: 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, 164 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 916 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 916 mSDsluCounter, 1604 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1065 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 539 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173occurred in iteration=4, InterpolantAutomatonStates: 20, 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, 509 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 199 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! [2021-11-23 13:28:16,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6c5c92-320c-4dbf-8b8c-13db030e7df6/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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