./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa --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 1a60868809a0ad0cb359a526a1f66a469756e048a31d4d83c9a3de774ac0575c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:52:45,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:52:45,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:52:45,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:52:45,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:52:45,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:52:45,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:52:45,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:52:45,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:52:45,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:52:45,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:52:45,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:52:45,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:52:45,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:52:45,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:52:45,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:52:45,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:52:45,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:52:45,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:52:45,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:52:45,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:52:45,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:52:45,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:52:45,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:52:45,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:52:45,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:52:45,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:52:45,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:52:45,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:52:45,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:52:45,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:52:45,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:52:45,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:52:45,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:52:45,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:52:45,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:52:45,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:52:45,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:52:45,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:52:45,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:52:45,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:52:45,803 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 23:52:45,823 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:52:45,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:52:45,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:52:45,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:52:45,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:52:45,824 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:52:45,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:52:45,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:52:45,825 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:52:45,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:52:45,825 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 23:52:45,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:52:45,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 23:52:45,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:52:45,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:52:45,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:52:45,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:52:45,826 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 23:52:45,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:52:45,826 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:52:45,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:52:45,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:52:45,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:52:45,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:52:45,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:52:45,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:52:45,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:52:45,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:52:45,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:52:45,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:52:45,834 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:52:45,834 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:52:45,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:52:45,835 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:52:45,835 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_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a60868809a0ad0cb359a526a1f66a469756e048a31d4d83c9a3de774ac0575c [2021-12-06 23:52:46,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:52:46,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:52:46,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:52:46,038 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:52:46,038 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:52:46,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2021-12-06 23:52:46,081 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/data/8bccd4b16/85c47c2dd22a47e29e76b033d88cc15e/FLAG8e4e91921 [2021-12-06 23:52:46,515 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:52:46,515 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2021-12-06 23:52:46,525 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/data/8bccd4b16/85c47c2dd22a47e29e76b033d88cc15e/FLAG8e4e91921 [2021-12-06 23:52:46,534 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/data/8bccd4b16/85c47c2dd22a47e29e76b033d88cc15e [2021-12-06 23:52:46,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:52:46,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:52:46,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:52:46,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:52:46,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:52:46,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:52:46" (1/1) ... [2021-12-06 23:52:46,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e61dba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:52:46, skipping insertion in model container [2021-12-06 23:52:46,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:52:46" (1/1) ... [2021-12-06 23:52:46,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:52:46,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:52:46,744 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c[11731,11744] [2021-12-06 23:52:46,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:52:46,782 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:52:46,815 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c[11731,11744] [2021-12-06 23:52:46,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:52:46,844 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:52:46,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:52:46 WrapperNode [2021-12-06 23:52:46,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:52:46,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:52:46,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:52:46,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:52:46,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:52:46" (1/1) ... [2021-12-06 23:52:46,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:52:46" (1/1) ... [2021-12-06 23:52:46,883 INFO L137 Inliner]: procedures = 54, calls = 155, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 242 [2021-12-06 23:52:46,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:52:46,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:52:46,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:52:46,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:52:46,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:52:46" (1/1) ... [2021-12-06 23:52:46,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:52:46" (1/1) ... [2021-12-06 23:52:46,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:52:46" (1/1) ... [2021-12-06 23:52:46,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:52:46" (1/1) ... [2021-12-06 23:52:46,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:52:46" (1/1) ... [2021-12-06 23:52:46,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:52:46" (1/1) ... [2021-12-06 23:52:46,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:52:46" (1/1) ... [2021-12-06 23:52:46,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:52:46,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:52:46,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:52:46,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:52:46,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:52:46" (1/1) ... [2021-12-06 23:52:46,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:52:46,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:52:46,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:52:46,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:52:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:52:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-06 23:52:46,960 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-06 23:52:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-06 23:52:46,960 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-06 23:52:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-06 23:52:46,960 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-06 23:52:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-06 23:52:46,961 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-06 23:52:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-06 23:52:46,961 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-06 23:52:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-06 23:52:46,961 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-06 23:52:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-06 23:52:46,961 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-06 23:52:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:52:46,962 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-06 23:52:46,962 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-06 23:52:46,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:52:46,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:52:47,013 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:52:47,014 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:52:47,245 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:52:47,253 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:52:47,253 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 23:52:47,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:52:47 BoogieIcfgContainer [2021-12-06 23:52:47,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:52:47,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:52:47,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:52:47,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:52:47,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:52:46" (1/3) ... [2021-12-06 23:52:47,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ae3baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:52:47, skipping insertion in model container [2021-12-06 23:52:47,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:52:46" (2/3) ... [2021-12-06 23:52:47,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ae3baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:52:47, skipping insertion in model container [2021-12-06 23:52:47,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:52:47" (3/3) ... [2021-12-06 23:52:47,263 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2021-12-06 23:52:47,269 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:52:47,269 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 23:52:47,304 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:52:47,309 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 [2021-12-06 23:52:47,309 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 23:52:47,323 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 77 states have internal predecessors, (94), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-12-06 23:52:47,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-06 23:52:47,328 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:52:47,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:52:47,329 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:52:47,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:52:47,335 INFO L85 PathProgramCache]: Analyzing trace with hash -929620248, now seen corresponding path program 1 times [2021-12-06 23:52:47,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:52:47,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295398941] [2021-12-06 23:52:47,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:52:47,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:52:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:47,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 23:52:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:47,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:52:47,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:52:47,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295398941] [2021-12-06 23:52:47,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295398941] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:52:47,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:52:47,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:52:47,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78465442] [2021-12-06 23:52:47,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:52:47,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 23:52:47,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:52:47,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 23:52:47,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 23:52:47,573 INFO L87 Difference]: Start difference. First operand has 92 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 77 states have internal predecessors, (94), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:52:47,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:52:47,601 INFO L93 Difference]: Finished difference Result 176 states and 239 transitions. [2021-12-06 23:52:47,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 23:52:47,603 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-12-06 23:52:47,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:52:47,610 INFO L225 Difference]: With dead ends: 176 [2021-12-06 23:52:47,610 INFO L226 Difference]: Without dead ends: 83 [2021-12-06 23:52:47,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 23:52:47,616 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:52:47,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:52:47,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-12-06 23:52:47,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-12-06 23:52:47,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 69 states have internal predecessors, (80), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-06 23:52:47,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2021-12-06 23:52:47,649 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 23 [2021-12-06 23:52:47,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:52:47,649 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2021-12-06 23:52:47,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:52:47,650 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2021-12-06 23:52:47,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-06 23:52:47,652 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:52:47,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:52:47,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 23:52:47,652 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:52:47,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:52:47,653 INFO L85 PathProgramCache]: Analyzing trace with hash 267832740, now seen corresponding path program 1 times [2021-12-06 23:52:47,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:52:47,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551306089] [2021-12-06 23:52:47,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:52:47,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:52:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:47,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 23:52:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:47,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:52:47,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:52:47,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551306089] [2021-12-06 23:52:47,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551306089] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:52:47,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:52:47,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:52:47,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27755202] [2021-12-06 23:52:47,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:52:47,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:52:47,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:52:47,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:52:47,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:52:47,708 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:52:47,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:52:47,722 INFO L93 Difference]: Finished difference Result 128 states and 164 transitions. [2021-12-06 23:52:47,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:52:47,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-12-06 23:52:47,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:52:47,725 INFO L225 Difference]: With dead ends: 128 [2021-12-06 23:52:47,725 INFO L226 Difference]: Without dead ends: 74 [2021-12-06 23:52:47,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:52:47,728 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 16 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:52:47,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 167 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:52:47,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-12-06 23:52:47,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-12-06 23:52:47,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 63 states have internal predecessors, (73), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-06 23:52:47,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 95 transitions. [2021-12-06 23:52:47,739 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 95 transitions. Word has length 24 [2021-12-06 23:52:47,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:52:47,739 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 95 transitions. [2021-12-06 23:52:47,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:52:47,740 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2021-12-06 23:52:47,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-06 23:52:47,741 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:52:47,741 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:52:47,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 23:52:47,741 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:52:47,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:52:47,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1921198566, now seen corresponding path program 1 times [2021-12-06 23:52:47,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:52:47,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326572487] [2021-12-06 23:52:47,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:52:47,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:52:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:47,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:52:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:47,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:52:47,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:52:47,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326572487] [2021-12-06 23:52:47,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326572487] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:52:47,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:52:47,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:52:47,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708202311] [2021-12-06 23:52:47,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:52:47,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:52:47,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:52:47,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:52:47,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:52:47,821 INFO L87 Difference]: Start difference. First operand 74 states and 95 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:52:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:52:47,944 INFO L93 Difference]: Finished difference Result 249 states and 326 transitions. [2021-12-06 23:52:47,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:52:47,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-12-06 23:52:47,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:52:47,947 INFO L225 Difference]: With dead ends: 249 [2021-12-06 23:52:47,947 INFO L226 Difference]: Without dead ends: 182 [2021-12-06 23:52:47,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:52:47,950 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 197 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:52:47,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 468 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:52:47,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-12-06 23:52:47,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 176. [2021-12-06 23:52:47,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 129 states have (on average 1.3565891472868217) internal successors, (175), 147 states have internal predecessors, (175), 27 states have call successors, (27), 19 states have call predecessors, (27), 19 states have return successors, (28), 19 states have call predecessors, (28), 27 states have call successors, (28) [2021-12-06 23:52:47,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 230 transitions. [2021-12-06 23:52:47,977 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 230 transitions. Word has length 28 [2021-12-06 23:52:47,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:52:47,977 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 230 transitions. [2021-12-06 23:52:47,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:52:47,977 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 230 transitions. [2021-12-06 23:52:47,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 23:52:47,979 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:52:47,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:52:47,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 23:52:47,979 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:52:47,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:52:47,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2070226864, now seen corresponding path program 1 times [2021-12-06 23:52:47,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:52:47,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175607981] [2021-12-06 23:52:47,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:52:47,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:52:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:48,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 23:52:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:48,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:52:48,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:52:48,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175607981] [2021-12-06 23:52:48,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175607981] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:52:48,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:52:48,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:52:48,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942287381] [2021-12-06 23:52:48,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:52:48,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:52:48,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:52:48,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:52:48,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:52:48,045 INFO L87 Difference]: Start difference. First operand 176 states and 230 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:52:48,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:52:48,144 INFO L93 Difference]: Finished difference Result 515 states and 686 transitions. [2021-12-06 23:52:48,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:52:48,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-12-06 23:52:48,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:52:48,149 INFO L225 Difference]: With dead ends: 515 [2021-12-06 23:52:48,149 INFO L226 Difference]: Without dead ends: 346 [2021-12-06 23:52:48,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:52:48,152 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 66 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:52:48,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 464 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:52:48,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2021-12-06 23:52:48,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 337. [2021-12-06 23:52:48,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 244 states have (on average 1.3401639344262295) internal successors, (327), 279 states have internal predecessors, (327), 54 states have call successors, (54), 38 states have call predecessors, (54), 38 states have return successors, (59), 38 states have call predecessors, (59), 54 states have call successors, (59) [2021-12-06 23:52:48,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 440 transitions. [2021-12-06 23:52:48,197 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 440 transitions. Word has length 32 [2021-12-06 23:52:48,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:52:48,198 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 440 transitions. [2021-12-06 23:52:48,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:52:48,198 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 440 transitions. [2021-12-06 23:52:48,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-06 23:52:48,201 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:52:48,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:52:48,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 23:52:48,202 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:52:48,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:52:48,202 INFO L85 PathProgramCache]: Analyzing trace with hash 680626324, now seen corresponding path program 1 times [2021-12-06 23:52:48,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:52:48,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486565937] [2021-12-06 23:52:48,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:52:48,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:52:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:48,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:52:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:48,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-06 23:52:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:48,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:52:48,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:52:48,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486565937] [2021-12-06 23:52:48,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486565937] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:52:48,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:52:48,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:52:48,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422019144] [2021-12-06 23:52:48,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:52:48,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:52:48,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:52:48,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:52:48,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:52:48,258 INFO L87 Difference]: Start difference. First operand 337 states and 440 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 23:52:48,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:52:48,429 INFO L93 Difference]: Finished difference Result 830 states and 1110 transitions. [2021-12-06 23:52:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:52:48,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2021-12-06 23:52:48,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:52:48,433 INFO L225 Difference]: With dead ends: 830 [2021-12-06 23:52:48,433 INFO L226 Difference]: Without dead ends: 500 [2021-12-06 23:52:48,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:52:48,435 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 108 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:52:48,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 235 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:52:48,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2021-12-06 23:52:48,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 481. [2021-12-06 23:52:48,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 352 states have (on average 1.2840909090909092) internal successors, (452), 385 states have internal predecessors, (452), 68 states have call successors, (68), 60 states have call predecessors, (68), 60 states have return successors, (93), 62 states have call predecessors, (93), 68 states have call successors, (93) [2021-12-06 23:52:48,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 613 transitions. [2021-12-06 23:52:48,469 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 613 transitions. Word has length 36 [2021-12-06 23:52:48,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:52:48,469 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 613 transitions. [2021-12-06 23:52:48,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 23:52:48,470 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 613 transitions. [2021-12-06 23:52:48,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 23:52:48,471 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:52:48,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:52:48,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 23:52:48,471 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:52:48,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:52:48,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1280424257, now seen corresponding path program 1 times [2021-12-06 23:52:48,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:52:48,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902011000] [2021-12-06 23:52:48,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:52:48,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:52:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:48,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:52:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:48,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 23:52:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:48,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:52:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:48,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:52:48,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:52:48,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902011000] [2021-12-06 23:52:48,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902011000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:52:48,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:52:48,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 23:52:48,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275542768] [2021-12-06 23:52:48,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:52:48,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:52:48,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:52:48,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:52:48,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:52:48,534 INFO L87 Difference]: Start difference. First operand 481 states and 613 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:52:48,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:52:48,729 INFO L93 Difference]: Finished difference Result 1061 states and 1368 transitions. [2021-12-06 23:52:48,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:52:48,730 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2021-12-06 23:52:48,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:52:48,733 INFO L225 Difference]: With dead ends: 1061 [2021-12-06 23:52:48,733 INFO L226 Difference]: Without dead ends: 587 [2021-12-06 23:52:48,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:52:48,736 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 113 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:52:48,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 243 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:52:48,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2021-12-06 23:52:48,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 573. [2021-12-06 23:52:48,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 424 states have (on average 1.25) internal successors, (530), 457 states have internal predecessors, (530), 76 states have call successors, (76), 60 states have call predecessors, (76), 72 states have return successors, (113), 78 states have call predecessors, (113), 76 states have call successors, (113) [2021-12-06 23:52:48,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 719 transitions. [2021-12-06 23:52:48,771 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 719 transitions. Word has length 46 [2021-12-06 23:52:48,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:52:48,772 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 719 transitions. [2021-12-06 23:52:48,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:52:48,772 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 719 transitions. [2021-12-06 23:52:48,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 23:52:48,773 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:52:48,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:52:48,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 23:52:48,774 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:52:48,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:52:48,774 INFO L85 PathProgramCache]: Analyzing trace with hash -713720449, now seen corresponding path program 1 times [2021-12-06 23:52:48,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:52:48,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393042216] [2021-12-06 23:52:48,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:52:48,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:52:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:48,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:52:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:48,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 23:52:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:48,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:52:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:48,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:52:48,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:52:48,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393042216] [2021-12-06 23:52:48,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393042216] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:52:48,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:52:48,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:52:48,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249335145] [2021-12-06 23:52:48,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:52:48,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:52:48,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:52:48,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:52:48,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:52:48,819 INFO L87 Difference]: Start difference. First operand 573 states and 719 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:52:48,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:52:48,982 INFO L93 Difference]: Finished difference Result 1173 states and 1512 transitions. [2021-12-06 23:52:48,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:52:48,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2021-12-06 23:52:48,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:52:48,987 INFO L225 Difference]: With dead ends: 1173 [2021-12-06 23:52:48,987 INFO L226 Difference]: Without dead ends: 607 [2021-12-06 23:52:48,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:52:48,990 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 118 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:52:48,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 205 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:52:48,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2021-12-06 23:52:49,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 581. [2021-12-06 23:52:49,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 432 states have (on average 1.2453703703703705) internal successors, (538), 465 states have internal predecessors, (538), 76 states have call successors, (76), 60 states have call predecessors, (76), 72 states have return successors, (113), 78 states have call predecessors, (113), 76 states have call successors, (113) [2021-12-06 23:52:49,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 727 transitions. [2021-12-06 23:52:49,032 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 727 transitions. Word has length 46 [2021-12-06 23:52:49,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:52:49,032 INFO L470 AbstractCegarLoop]: Abstraction has 581 states and 727 transitions. [2021-12-06 23:52:49,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:52:49,032 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 727 transitions. [2021-12-06 23:52:49,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 23:52:49,033 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:52:49,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:52:49,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 23:52:49,034 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:52:49,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:52:49,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1531368899, now seen corresponding path program 1 times [2021-12-06 23:52:49,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:52:49,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831053935] [2021-12-06 23:52:49,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:52:49,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:52:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:49,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:52:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:49,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 23:52:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:49,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:52:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:49,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:52:49,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:52:49,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831053935] [2021-12-06 23:52:49,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831053935] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:52:49,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:52:49,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:52:49,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900097633] [2021-12-06 23:52:49,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:52:49,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:52:49,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:52:49,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:52:49,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:52:49,087 INFO L87 Difference]: Start difference. First operand 581 states and 727 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:52:49,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:52:49,345 INFO L93 Difference]: Finished difference Result 1761 states and 2304 transitions. [2021-12-06 23:52:49,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 23:52:49,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2021-12-06 23:52:49,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:52:49,355 INFO L225 Difference]: With dead ends: 1761 [2021-12-06 23:52:49,355 INFO L226 Difference]: Without dead ends: 1187 [2021-12-06 23:52:49,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:52:49,359 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 299 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:52:49,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 267 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:52:49,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2021-12-06 23:52:49,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1175. [2021-12-06 23:52:49,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 876 states have (on average 1.221461187214612) internal successors, (1070), 933 states have internal predecessors, (1070), 154 states have call successors, (154), 142 states have call predecessors, (154), 144 states have return successors, (257), 150 states have call predecessors, (257), 154 states have call successors, (257) [2021-12-06 23:52:49,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1481 transitions. [2021-12-06 23:52:49,453 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1481 transitions. Word has length 46 [2021-12-06 23:52:49,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:52:49,453 INFO L470 AbstractCegarLoop]: Abstraction has 1175 states and 1481 transitions. [2021-12-06 23:52:49,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:52:49,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1481 transitions. [2021-12-06 23:52:49,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 23:52:49,456 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:52:49,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:52:49,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 23:52:49,457 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:52:49,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:52:49,457 INFO L85 PathProgramCache]: Analyzing trace with hash -2099326365, now seen corresponding path program 1 times [2021-12-06 23:52:49,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:52:49,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668582008] [2021-12-06 23:52:49,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:52:49,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:52:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:52:49,475 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 23:52:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:52:49,514 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 23:52:49,514 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 23:52:49,515 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 23:52:49,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 23:52:49,520 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:52:49,523 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 23:52:49,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 11:52:49 BoogieIcfgContainer [2021-12-06 23:52:49,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 23:52:49,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 23:52:49,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 23:52:49,569 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 23:52:49,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:52:47" (3/4) ... [2021-12-06 23:52:49,572 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-06 23:52:49,631 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 23:52:49,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 23:52:49,632 INFO L158 Benchmark]: Toolchain (without parser) took 3094.46ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 85.1MB in the beginning and 90.4MB in the end (delta: -5.3MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2021-12-06 23:52:49,632 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 121.6MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:52:49,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.91ms. Allocated memory is still 121.6MB. Free memory was 84.9MB in the beginning and 66.3MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-06 23:52:49,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.51ms. Allocated memory is still 121.6MB. Free memory was 66.3MB in the beginning and 63.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 23:52:49,633 INFO L158 Benchmark]: Boogie Preprocessor took 21.92ms. Allocated memory is still 121.6MB. Free memory was 63.9MB in the beginning and 62.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 23:52:49,633 INFO L158 Benchmark]: RCFGBuilder took 349.32ms. Allocated memory is still 121.6MB. Free memory was 62.3MB in the beginning and 91.8MB in the end (delta: -29.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-06 23:52:49,634 INFO L158 Benchmark]: TraceAbstraction took 2311.49ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 91.2MB in the beginning and 96.7MB in the end (delta: -5.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2021-12-06 23:52:49,634 INFO L158 Benchmark]: Witness Printer took 61.99ms. Allocated memory is still 146.8MB. Free memory was 96.7MB in the beginning and 90.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 23:52:49,636 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 121.6MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.91ms. Allocated memory is still 121.6MB. Free memory was 84.9MB in the beginning and 66.3MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.51ms. Allocated memory is still 121.6MB. Free memory was 66.3MB in the beginning and 63.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.92ms. Allocated memory is still 121.6MB. Free memory was 63.9MB in the beginning and 62.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 349.32ms. Allocated memory is still 121.6MB. Free memory was 62.3MB in the beginning and 91.8MB in the end (delta: -29.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2311.49ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 91.2MB in the beginning and 96.7MB in the end (delta: -5.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Witness Printer took 61.99ms. Allocated memory is still 146.8MB. Free memory was 96.7MB in the beginning and 90.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 449]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L460] int waterLevel = 1; [L461] int methaneLevelCritical = 0; [L627] int pumpRunning = 0; [L628] int systemActive = 1; [L858] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L931] int retValue_acc ; [L932] int tmp ; [L936] FCALL select_helpers() [L937] FCALL select_features() [L938] CALL, EXPR valid_product() [L849] int retValue_acc ; [L852] retValue_acc = 1 [L853] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L938] RET, EXPR valid_product() [L938] tmp = valid_product() [L940] COND TRUE \read(tmp) [L942] FCALL setup() [L943] CALL runTest() [L925] CALL test() [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L567] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L569] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L575] tmp = __VERIFIER_nondet_int() [L577] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L579] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L478] COND TRUE waterLevel < 2 [L479] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L579] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L589] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L490] COND FALSE !(\read(methaneLevelCritical)) [L493] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L589] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L612] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L634] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L641] COND TRUE \read(systemActive) [L643] CALL processEnvironment() [L689] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L692] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L707] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L663] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L666] COND TRUE ! pumpRunning [L668] CALL, EXPR isHighWaterLevel() [L786] int retValue_acc ; [L787] int tmp ; [L788] int tmp___0 ; [L792] CALL, EXPR isHighWaterSensorDry() [L540] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L543] COND FALSE !(waterLevel < 2) [L547] retValue_acc = 0 [L548] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L792] RET, EXPR isHighWaterSensorDry() [L792] tmp = isHighWaterSensorDry() [L794] COND FALSE !(\read(tmp)) [L797] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L799] retValue_acc = tmp___0 [L800] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L668] RET, EXPR isHighWaterLevel() [L668] tmp = isHighWaterLevel() [L670] COND TRUE \read(tmp) [L672] CALL activatePump() [L717] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L672] RET activatePump() [L707] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L643] RET processEnvironment() [L649] CALL __utac_acc__Specification1_spec__1() [L420] int tmp ; [L421] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L425] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L499] int retValue_acc ; [L502] retValue_acc = methaneLevelCritical [L503] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L425] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L425] tmp = isMethaneLevelCritical() [L427] COND TRUE \read(tmp) [L429] CALL, EXPR isPumpRunning() [L741] int retValue_acc ; [L744] retValue_acc = pumpRunning [L745] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L429] RET, EXPR isPumpRunning() [L429] tmp___0 = isPumpRunning() [L431] COND TRUE \read(tmp___0) [L433] CALL __automaton_fail() [L449] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 935 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 917 mSDsluCounter, 2165 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1358 mSDsCounter, 271 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1023 IncrementalHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 271 mSolverCounterUnsat, 807 mSDtfsCounter, 1023 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1175occurred in iteration=8, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 86 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 331 NumberOfCodeBlocks, 331 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 273 ConstructedInterpolants, 0 QuantifiedInterpolants, 513 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2021-12-06 23:52:49,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e46e701-d82c-48cb-9ec1-ac34dcbda5c1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE