./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be --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 e237a09aaa1bc75b51620084d47086dcaad161f8c8500bd0b8b901d1a9d4bb0a .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:45:24,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:45:24,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:45:24,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:45:24,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:45:24,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:45:24,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:45:24,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:45:24,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:45:24,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:45:24,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:45:24,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:45:24,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:45:24,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:45:24,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:45:24,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:45:24,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:45:24,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:45:24,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:45:24,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:45:24,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:45:24,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:45:24,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:45:24,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:45:24,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:45:24,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:45:24,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:45:24,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:45:24,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:45:24,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:45:24,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:45:24,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:45:24,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:45:24,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:45:24,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:45:24,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:45:24,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:45:24,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:45:24,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:45:24,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:45:24,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:45:24,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:45:24,848 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:45:24,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:45:24,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:45:24,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:45:24,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:45:24,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:45:24,851 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:45:24,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:45:24,852 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:45:24,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:45:24,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:45:24,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:45:24,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:45:24,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:45:24,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:45:24,855 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:45:24,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:45:24,855 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:45:24,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:45:24,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:45:24,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:45:24,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:45:24,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:45:24,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:45:24,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:45:24,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:45:24,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:45:24,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:45:24,858 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:45:24,860 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:45:24,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:45:24,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:45:24,861 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_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e237a09aaa1bc75b51620084d47086dcaad161f8c8500bd0b8b901d1a9d4bb0a [2021-10-21 19:45:25,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:45:25,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:45:25,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:45:25,158 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:45:25,159 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:45:25,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c [2021-10-21 19:45:25,231 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/data/1e5d39ebc/34d7d6968f2f440eac73f9dbf475afa4/FLAG2c5da947d [2021-10-21 19:45:25,789 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:45:25,789 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c [2021-10-21 19:45:25,803 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/data/1e5d39ebc/34d7d6968f2f440eac73f9dbf475afa4/FLAG2c5da947d [2021-10-21 19:45:26,120 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/data/1e5d39ebc/34d7d6968f2f440eac73f9dbf475afa4 [2021-10-21 19:45:26,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:45:26,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:45:26,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:45:26,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:45:26,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:45:26,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:45:26" (1/1) ... [2021-10-21 19:45:26,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf8101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:26, skipping insertion in model container [2021-10-21 19:45:26,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:45:26" (1/1) ... [2021-10-21 19:45:26,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:45:26,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:45:26,525 WARN L228 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_87348387-4c4c-488e-b54a-7099a014732d/sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c[20217,20230] [2021-10-21 19:45:26,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:45:26,543 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:45:26,651 WARN L228 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_87348387-4c4c-488e-b54a-7099a014732d/sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c[20217,20230] [2021-10-21 19:45:26,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:45:26,684 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:45:26,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:26 WrapperNode [2021-10-21 19:45:26,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:45:26,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:45:26,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:45:26,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:45:26,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:26" (1/1) ... [2021-10-21 19:45:26,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:26" (1/1) ... [2021-10-21 19:45:26,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:45:26,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:45:26,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:45:26,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:45:26,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:26" (1/1) ... [2021-10-21 19:45:26,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:26" (1/1) ... [2021-10-21 19:45:26,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:26" (1/1) ... [2021-10-21 19:45:26,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:26" (1/1) ... [2021-10-21 19:45:26,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:26" (1/1) ... [2021-10-21 19:45:26,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:26" (1/1) ... [2021-10-21 19:45:26,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:26" (1/1) ... [2021-10-21 19:45:26,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:45:26,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:45:26,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:45:26,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:45:26,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:26" (1/1) ... [2021-10-21 19:45:26,980 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:45:26,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:27,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:27,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:45:27,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:45:27,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:45:27,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:45:27,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:45:28,821 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:45:28,821 INFO L299 CfgBuilder]: Removed 900 assume(true) statements. [2021-10-21 19:45:28,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:45:28 BoogieIcfgContainer [2021-10-21 19:45:28,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:45:28,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:45:28,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:45:28,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:45:28,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:45:26" (1/3) ... [2021-10-21 19:45:28,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e39815a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:45:28, skipping insertion in model container [2021-10-21 19:45:28,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:26" (2/3) ... [2021-10-21 19:45:28,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e39815a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:45:28, skipping insertion in model container [2021-10-21 19:45:28,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:45:28" (3/3) ... [2021-10-21 19:45:28,838 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_productSimulator.cil.c [2021-10-21 19:45:28,844 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:45:28,845 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-21 19:45:28,912 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:45:28,921 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 [2021-10-21 19:45:28,921 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-21 19:45:28,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 470 states, 466 states have (on average 1.5751072961373391) internal successors, (734), 469 states have internal predecessors, (734), 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) [2021-10-21 19:45:28,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 19:45:28,971 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:45:28,972 INFO L512 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] [2021-10-21 19:45:28,972 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:45:28,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:28,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1535705576, now seen corresponding path program 1 times [2021-10-21 19:45:28,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:28,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434538160] [2021-10-21 19:45:28,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:28,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:29,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:45:29,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:29,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434538160] [2021-10-21 19:45:29,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434538160] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:29,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:29,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:45:29,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920061651] [2021-10-21 19:45:29,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:45:29,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:29,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:45:29,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:45:29,262 INFO L87 Difference]: Start difference. First operand has 470 states, 466 states have (on average 1.5751072961373391) internal successors, (734), 469 states have internal predecessors, (734), 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 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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) [2021-10-21 19:45:29,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:29,323 INFO L93 Difference]: Finished difference Result 927 states and 1454 transitions. [2021-10-21 19:45:29,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:45:29,324 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 23 [2021-10-21 19:45:29,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:45:29,340 INFO L225 Difference]: With dead ends: 927 [2021-10-21 19:45:29,341 INFO L226 Difference]: Without dead ends: 466 [2021-10-21 19:45:29,346 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:45:29,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2021-10-21 19:45:29,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2021-10-21 19:45:29,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 463 states have (on average 1.5593952483801297) internal successors, (722), 465 states have internal predecessors, (722), 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) [2021-10-21 19:45:29,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 722 transitions. [2021-10-21 19:45:29,435 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 722 transitions. Word has length 23 [2021-10-21 19:45:29,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:45:29,435 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 722 transitions. [2021-10-21 19:45:29,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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) [2021-10-21 19:45:29,436 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 722 transitions. [2021-10-21 19:45:29,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 19:45:29,437 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:45:29,437 INFO L512 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] [2021-10-21 19:45:29,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:45:29,438 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:45:29,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:29,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1882100476, now seen corresponding path program 1 times [2021-10-21 19:45:29,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:29,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106841910] [2021-10-21 19:45:29,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:29,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:45:29,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:29,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106841910] [2021-10-21 19:45:29,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106841910] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:29,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:29,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:45:29,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96726740] [2021-10-21 19:45:29,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:45:29,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:29,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:45:29,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:45:29,553 INFO L87 Difference]: Start difference. First operand 466 states and 722 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-21 19:45:29,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:29,573 INFO L93 Difference]: Finished difference Result 466 states and 722 transitions. [2021-10-21 19:45:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:45:29,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-10-21 19:45:29,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:45:29,576 INFO L225 Difference]: With dead ends: 466 [2021-10-21 19:45:29,576 INFO L226 Difference]: Without dead ends: 172 [2021-10-21 19:45:29,578 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:45:29,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-21 19:45:29,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2021-10-21 19:45:29,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.5380116959064327) internal successors, (263), 171 states have internal predecessors, (263), 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) [2021-10-21 19:45:29,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 263 transitions. [2021-10-21 19:45:29,592 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 263 transitions. Word has length 24 [2021-10-21 19:45:29,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:45:29,592 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 263 transitions. [2021-10-21 19:45:29,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-21 19:45:29,593 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 263 transitions. [2021-10-21 19:45:29,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-21 19:45:29,594 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:45:29,595 INFO L512 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] [2021-10-21 19:45:29,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:45:29,597 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:45:29,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:29,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1978143563, now seen corresponding path program 1 times [2021-10-21 19:45:29,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:29,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186712220] [2021-10-21 19:45:29,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:29,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:29,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:45:29,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:29,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186712220] [2021-10-21 19:45:29,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186712220] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:29,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:29,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 19:45:29,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434184039] [2021-10-21 19:45:29,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:45:29,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:29,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:45:29,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:45:29,808 INFO L87 Difference]: Start difference. First operand 172 states and 263 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 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) [2021-10-21 19:45:30,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:30,091 INFO L93 Difference]: Finished difference Result 674 states and 1051 transitions. [2021-10-21 19:45:30,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:45:30,092 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 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 [2021-10-21 19:45:30,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:45:30,096 INFO L225 Difference]: With dead ends: 674 [2021-10-21 19:45:30,096 INFO L226 Difference]: Without dead ends: 515 [2021-10-21 19:45:30,098 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.4ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:45:30,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2021-10-21 19:45:30,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 193. [2021-10-21 19:45:30,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.5416666666666667) internal successors, (296), 192 states have internal predecessors, (296), 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) [2021-10-21 19:45:30,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 296 transitions. [2021-10-21 19:45:30,117 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 296 transitions. Word has length 30 [2021-10-21 19:45:30,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:45:30,117 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 296 transitions. [2021-10-21 19:45:30,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 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) [2021-10-21 19:45:30,118 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 296 transitions. [2021-10-21 19:45:30,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-21 19:45:30,120 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:45:30,120 INFO L512 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, 1] [2021-10-21 19:45:30,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:45:30,120 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:45:30,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:30,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1554604317, now seen corresponding path program 1 times [2021-10-21 19:45:30,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:30,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786274280] [2021-10-21 19:45:30,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:30,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:30,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:45:30,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:30,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786274280] [2021-10-21 19:45:30,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786274280] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:30,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:30,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:45:30,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294408456] [2021-10-21 19:45:30,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:45:30,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:30,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:45:30,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:45:30,185 INFO L87 Difference]: Start difference. First operand 193 states and 296 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2021-10-21 19:45:30,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:30,285 INFO L93 Difference]: Finished difference Result 384 states and 597 transitions. [2021-10-21 19:45:30,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:45:30,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2021-10-21 19:45:30,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:45:30,288 INFO L225 Difference]: With dead ends: 384 [2021-10-21 19:45:30,288 INFO L226 Difference]: Without dead ends: 204 [2021-10-21 19:45:30,290 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:45:30,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-10-21 19:45:30,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2021-10-21 19:45:30,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 1.5024875621890548) internal successors, (302), 201 states have internal predecessors, (302), 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) [2021-10-21 19:45:30,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 302 transitions. [2021-10-21 19:45:30,307 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 302 transitions. Word has length 33 [2021-10-21 19:45:30,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:45:30,308 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 302 transitions. [2021-10-21 19:45:30,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2021-10-21 19:45:30,308 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 302 transitions. [2021-10-21 19:45:30,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-21 19:45:30,314 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:45:30,315 INFO L512 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, 1] [2021-10-21 19:45:30,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:45:30,315 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:45:30,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:30,318 INFO L82 PathProgramCache]: Analyzing trace with hash 965063802, now seen corresponding path program 1 times [2021-10-21 19:45:30,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:30,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228730678] [2021-10-21 19:45:30,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:30,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:30,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:45:30,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:30,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228730678] [2021-10-21 19:45:30,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228730678] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:30,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:30,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:45:30,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708469305] [2021-10-21 19:45:30,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:45:30,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:30,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:45:30,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:45:30,450 INFO L87 Difference]: Start difference. First operand 202 states and 302 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-10-21 19:45:30,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:30,695 INFO L93 Difference]: Finished difference Result 1088 states and 1674 transitions. [2021-10-21 19:45:30,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:45:30,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2021-10-21 19:45:30,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:45:30,704 INFO L225 Difference]: With dead ends: 1088 [2021-10-21 19:45:30,704 INFO L226 Difference]: Without dead ends: 899 [2021-10-21 19:45:30,705 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 31.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:45:30,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2021-10-21 19:45:30,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 383. [2021-10-21 19:45:30,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.5052356020942408) internal successors, (575), 382 states have internal predecessors, (575), 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) [2021-10-21 19:45:30,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 575 transitions. [2021-10-21 19:45:30,754 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 575 transitions. Word has length 33 [2021-10-21 19:45:30,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:45:30,754 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 575 transitions. [2021-10-21 19:45:30,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-10-21 19:45:30,755 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 575 transitions. [2021-10-21 19:45:30,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-21 19:45:30,759 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:45:30,760 INFO L512 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, 1, 1] [2021-10-21 19:45:30,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 19:45:30,760 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:45:30,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:30,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1927811083, now seen corresponding path program 1 times [2021-10-21 19:45:30,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:30,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067710562] [2021-10-21 19:45:30,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:30,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:30,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:45:30,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:30,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067710562] [2021-10-21 19:45:30,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067710562] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:30,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:30,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:45:30,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39035003] [2021-10-21 19:45:30,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:45:30,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:30,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:45:30,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:45:30,851 INFO L87 Difference]: Start difference. First operand 383 states and 575 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-10-21 19:45:31,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:31,145 INFO L93 Difference]: Finished difference Result 1195 states and 1810 transitions. [2021-10-21 19:45:31,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:45:31,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2021-10-21 19:45:31,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:45:31,157 INFO L225 Difference]: With dead ends: 1195 [2021-10-21 19:45:31,158 INFO L226 Difference]: Without dead ends: 1193 [2021-10-21 19:45:31,158 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 36.6ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:45:31,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2021-10-21 19:45:31,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 383. [2021-10-21 19:45:31,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.5) internal successors, (573), 382 states have internal predecessors, (573), 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) [2021-10-21 19:45:31,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 573 transitions. [2021-10-21 19:45:31,205 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 573 transitions. Word has length 34 [2021-10-21 19:45:31,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:45:31,206 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 573 transitions. [2021-10-21 19:45:31,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-10-21 19:45:31,207 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 573 transitions. [2021-10-21 19:45:31,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-21 19:45:31,208 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:45:31,208 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:31,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 19:45:31,208 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:45:31,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:31,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1912385192, now seen corresponding path program 1 times [2021-10-21 19:45:31,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:31,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372666677] [2021-10-21 19:45:31,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:31,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:31,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:45:31,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:31,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372666677] [2021-10-21 19:45:31,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372666677] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:31,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:31,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:45:31,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955853347] [2021-10-21 19:45:31,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:45:31,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:31,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:45:31,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:45:31,313 INFO L87 Difference]: Start difference. First operand 383 states and 573 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2021-10-21 19:45:31,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:31,492 INFO L93 Difference]: Finished difference Result 1009 states and 1501 transitions. [2021-10-21 19:45:31,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:45:31,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 42 [2021-10-21 19:45:31,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:45:31,496 INFO L225 Difference]: With dead ends: 1009 [2021-10-21 19:45:31,496 INFO L226 Difference]: Without dead ends: 639 [2021-10-21 19:45:31,498 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:45:31,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2021-10-21 19:45:31,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 431. [2021-10-21 19:45:31,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.4441860465116279) internal successors, (621), 430 states have internal predecessors, (621), 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) [2021-10-21 19:45:31,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 621 transitions. [2021-10-21 19:45:31,538 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 621 transitions. Word has length 42 [2021-10-21 19:45:31,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:45:31,540 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 621 transitions. [2021-10-21 19:45:31,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2021-10-21 19:45:31,540 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 621 transitions. [2021-10-21 19:45:31,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-21 19:45:31,542 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:45:31,542 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:31,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 19:45:31,543 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:45:31,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:31,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1681517526, now seen corresponding path program 1 times [2021-10-21 19:45:31,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:31,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043029358] [2021-10-21 19:45:31,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:31,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:31,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:45:31,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:31,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043029358] [2021-10-21 19:45:31,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043029358] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:31,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:31,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 19:45:31,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159542566] [2021-10-21 19:45:31,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:45:31,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:31,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:45:31,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:45:31,654 INFO L87 Difference]: Start difference. First operand 431 states and 621 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2021-10-21 19:45:31,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:31,965 INFO L93 Difference]: Finished difference Result 1145 states and 1637 transitions. [2021-10-21 19:45:31,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:45:31,966 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 42 [2021-10-21 19:45:31,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:45:31,971 INFO L225 Difference]: With dead ends: 1145 [2021-10-21 19:45:31,971 INFO L226 Difference]: Without dead ends: 727 [2021-10-21 19:45:31,972 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 57.6ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:45:31,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2021-10-21 19:45:32,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 463. [2021-10-21 19:45:32,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 1.4134199134199135) internal successors, (653), 462 states have internal predecessors, (653), 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) [2021-10-21 19:45:32,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 653 transitions. [2021-10-21 19:45:32,024 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 653 transitions. Word has length 42 [2021-10-21 19:45:32,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:45:32,025 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 653 transitions. [2021-10-21 19:45:32,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2021-10-21 19:45:32,025 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 653 transitions. [2021-10-21 19:45:32,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-21 19:45:32,026 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:45:32,027 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:32,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 19:45:32,027 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:45:32,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:32,028 INFO L82 PathProgramCache]: Analyzing trace with hash 2026643756, now seen corresponding path program 1 times [2021-10-21 19:45:32,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:32,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467926042] [2021-10-21 19:45:32,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:32,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:32,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:45:32,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:32,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467926042] [2021-10-21 19:45:32,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467926042] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:32,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:32,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:45:32,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949118737] [2021-10-21 19:45:32,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:45:32,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:32,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:45:32,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:45:32,075 INFO L87 Difference]: Start difference. First operand 463 states and 653 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2021-10-21 19:45:32,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:32,195 INFO L93 Difference]: Finished difference Result 1187 states and 1693 transitions. [2021-10-21 19:45:32,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:45:32,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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 42 [2021-10-21 19:45:32,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:45:32,200 INFO L225 Difference]: With dead ends: 1187 [2021-10-21 19:45:32,200 INFO L226 Difference]: Without dead ends: 737 [2021-10-21 19:45:32,201 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:45:32,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-10-21 19:45:32,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 735. [2021-10-21 19:45:32,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 734 states have (on average 1.4032697547683923) internal successors, (1030), 734 states have internal predecessors, (1030), 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) [2021-10-21 19:45:32,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1030 transitions. [2021-10-21 19:45:32,275 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1030 transitions. Word has length 42 [2021-10-21 19:45:32,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:45:32,275 INFO L470 AbstractCegarLoop]: Abstraction has 735 states and 1030 transitions. [2021-10-21 19:45:32,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2021-10-21 19:45:32,276 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1030 transitions. [2021-10-21 19:45:32,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-21 19:45:32,277 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:45:32,277 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:32,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-21 19:45:32,278 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:45:32,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:32,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1499020087, now seen corresponding path program 1 times [2021-10-21 19:45:32,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:32,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275970200] [2021-10-21 19:45:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:32,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:32,345 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:32,453 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:32,454 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:45:32,455 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:45:32,456 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:45:32,457 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:45:32,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-21 19:45:32,464 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:45:32,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:45:32 BoogieIcfgContainer [2021-10-21 19:45:32,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:45:32,575 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:45:32,575 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:45:32,575 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:45:32,576 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:45:28" (3/4) ... [2021-10-21 19:45:32,578 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-21 19:45:32,674 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:45:32,674 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:45:32,676 INFO L168 Benchmark]: Toolchain (without parser) took 6551.49 ms. Allocated memory was 123.7 MB in the beginning and 207.6 MB in the end (delta: 83.9 MB). Free memory was 92.8 MB in the beginning and 59.9 MB in the end (delta: 32.8 MB). Peak memory consumption was 116.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:32,677 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 123.7 MB. Free memory is still 79.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:45:32,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 551.97 ms. Allocated memory is still 123.7 MB. Free memory was 92.8 MB in the beginning and 87.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:32,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 149.90 ms. Allocated memory is still 123.7 MB. Free memory was 87.4 MB in the beginning and 75.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:32,678 INFO L168 Benchmark]: Boogie Preprocessor took 132.97 ms. Allocated memory is still 123.7 MB. Free memory was 75.7 MB in the beginning and 68.2 MB in the end (delta: 7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:32,678 INFO L168 Benchmark]: RCFGBuilder took 1854.90 ms. Allocated memory was 123.7 MB in the beginning and 153.1 MB in the end (delta: 29.4 MB). Free memory was 68.2 MB in the beginning and 91.6 MB in the end (delta: -23.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:32,678 INFO L168 Benchmark]: TraceAbstraction took 3747.62 ms. Allocated memory was 153.1 MB in the beginning and 207.6 MB in the end (delta: 54.5 MB). Free memory was 90.7 MB in the beginning and 81.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 63.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:32,679 INFO L168 Benchmark]: Witness Printer took 99.68 ms. Allocated memory is still 207.6 MB. Free memory was 81.9 MB in the beginning and 59.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:32,681 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 123.7 MB. Free memory is still 79.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 551.97 ms. Allocated memory is still 123.7 MB. Free memory was 92.8 MB in the beginning and 87.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 149.90 ms. Allocated memory is still 123.7 MB. Free memory was 87.4 MB in the beginning and 75.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 132.97 ms. Allocated memory is still 123.7 MB. Free memory was 75.7 MB in the beginning and 68.2 MB in the end (delta: 7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1854.90 ms. Allocated memory was 123.7 MB in the beginning and 153.1 MB in the end (delta: 29.4 MB). Free memory was 68.2 MB in the beginning and 91.6 MB in the end (delta: -23.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3747.62 ms. Allocated memory was 153.1 MB in the beginning and 207.6 MB in the end (delta: 54.5 MB). Free memory was 90.7 MB in the beginning and 81.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 63.1 MB. Max. memory is 16.1 GB. * Witness Printer took 99.68 ms. Allocated memory is still 207.6 MB. Free memory was 81.9 MB in the beginning and 59.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1031]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int __SELECTED_FEATURE_base ; [L51] int __SELECTED_FEATURE_highWaterSensor ; [L52] int __SELECTED_FEATURE_lowWaterSensor ; [L53] int __SELECTED_FEATURE_methaneQuery ; [L54] int __SELECTED_FEATURE_methaneAlarm ; [L55] int __SELECTED_FEATURE_stopCommand ; [L56] int __SELECTED_FEATURE_startCommand ; [L57] int __GUIDSL_ROOT_PRODUCTION ; [L150] int pumpRunning = 0; [L151] int systemActive = 1; [L651] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L924] int waterLevel = 1; [L925] int methaneLevelCritical = 0; [L1036] int cleanupTimeShifts = 4; VAL [__GUIDSL_ROOT_PRODUCTION=0, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1109] int retValue_acc ; [L1110] int tmp ; [L882] __GUIDSL_ROOT_PRODUCTION = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L867] __SELECTED_FEATURE_base = 1 [L853] int retValue_acc ; [L854] int choice = __VERIFIER_nondet_int(); [L857] retValue_acc = choice [L858] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L868] __SELECTED_FEATURE_highWaterSensor = select_one() [L853] int retValue_acc ; [L854] int choice = __VERIFIER_nondet_int(); [L857] retValue_acc = choice [L858] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L869] __SELECTED_FEATURE_lowWaterSensor = select_one() [L853] int retValue_acc ; [L854] int choice = __VERIFIER_nondet_int(); [L857] retValue_acc = choice [L858] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L870] __SELECTED_FEATURE_methaneQuery = select_one() [L853] int retValue_acc ; [L854] int choice = __VERIFIER_nondet_int(); [L857] retValue_acc = choice [L858] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L871] __SELECTED_FEATURE_methaneAlarm = select_one() [L853] int retValue_acc ; [L854] int choice = __VERIFIER_nondet_int(); [L857] retValue_acc = choice [L858] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L872] __SELECTED_FEATURE_stopCommand = select_one() [L853] int retValue_acc ; [L854] int choice = __VERIFIER_nondet_int(); [L857] retValue_acc = choice [L858] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L873] __SELECTED_FEATURE_startCommand = select_one() [L887] int retValue_acc ; [L890] retValue_acc = __SELECTED_FEATURE_base [L891] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1116] tmp = valid_product() [L1118] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] int splverifierCounter ; [L66] int tmp ; [L67] int tmp___0 ; [L68] int tmp___1 ; [L69] int tmp___2 ; [L72] splverifierCounter = 0 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L74] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L76] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L82] tmp = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L942] COND TRUE waterLevel < 2 [L943] waterLevel = waterLevel + 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L92] tmp___0 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L954] COND FALSE !(\read(methaneLevelCritical)) [L957] methaneLevelCritical = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L102] tmp___2 = __VERIFIER_nondet_int() [L104] COND FALSE !(\read(tmp___2)) [L114] tmp___1 = __VERIFIER_nondet_int() [L116] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L158] COND FALSE !(\read(pumpRunning)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L165] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L301] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L258] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L215] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L187] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L190] COND TRUE ! pumpRunning [L421] int retValue_acc ; [L422] int tmp ; [L423] int tmp___0 ; [L1004] int retValue_acc ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L1007] COND FALSE !(waterLevel < 2) [L1011] retValue_acc = 0 [L1012] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L427] tmp = isHighWaterSensorDry() [L429] COND FALSE !(\read(tmp)) [L432] tmp___0 = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] retValue_acc = tmp___0 [L435] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L192] tmp = isHighWaterLevel() [L194] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L343] COND FALSE !(\read(__SELECTED_FEATURE_methaneQuery)) [L318] pumpRunning = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L898] int tmp ; [L899] int tmp___0 ; [L963] int retValue_acc ; [L966] retValue_acc = methaneLevelCritical [L967] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L903] tmp = isMethaneLevelCritical() [L905] COND TRUE \read(tmp) [L376] int retValue_acc ; [L379] retValue_acc = pumpRunning [L380] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L907] tmp___0 = isPumpRunning() [L909] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L1031] reach_error() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 1031]: 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: 1031]: 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, 470 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3550.8ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 44.2ms, AutomataDifference: 1720.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 25.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3114 SDtfs, 5625 SDslu, 5333 SDs, 0 SdLazy, 540 SolverSat, 167 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 673.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 197.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=735occurred in iteration=9, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 385.7ms AutomataMinimizationTime, 9 MinimizatonAttempts, 2124 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 63.9ms SsaConstructionTime, 382.9ms SatisfiabilityAnalysisTime, 589.7ms InterpolantComputationTime, 346 NumberOfCodeBlocks, 346 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 612 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! [2021-10-21 19:45:32,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87348387-4c4c-488e-b54a-7099a014732d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...