./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8 --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 dc29098f4fd0de7b34ca1f86e5228e41fa7841081f2e41f7454108ef1ad7724c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 18:44:15,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:44:15,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:44:15,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:44:15,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:44:15,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:44:15,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:44:15,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:44:15,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:44:15,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:44:15,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:44:15,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:44:15,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:44:15,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:44:15,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:44:15,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:44:15,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:44:15,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:44:15,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:44:15,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:44:15,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:44:15,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:44:15,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:44:15,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:44:15,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:44:15,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:44:15,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:44:15,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:44:15,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:44:15,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:44:15,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:44:15,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:44:15,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:44:15,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:44:15,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:44:15,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:44:15,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:44:15,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:44:15,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:44:15,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:44:15,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:44:15,807 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 18:44:15,843 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:44:15,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:44:15,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:44:15,844 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:44:15,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:44:15,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:44:15,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:44:15,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:44:15,845 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:44:15,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:44:15,845 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:44:15,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:44:15,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:44:15,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:44:15,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:44:15,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:44:15,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:44:15,846 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:44:15,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:44:15,846 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:44:15,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:44:15,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:44:15,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:44:15,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:44:15,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:44:15,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:44:15,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:44:15,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:44:15,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:44:15,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:44:15,847 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:44:15,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:44:15,847 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:44:15,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:44:15,853 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:44:15,853 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc29098f4fd0de7b34ca1f86e5228e41fa7841081f2e41f7454108ef1ad7724c [2022-12-13 18:44:16,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:44:16,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:44:16,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:44:16,039 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:44:16,039 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:44:16,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c [2022-12-13 18:44:18,638 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:44:18,830 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:44:18,830 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c [2022-12-13 18:44:18,838 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8/data/17fd27ae5/92bb4971e06f46cd970cc29016d2da63/FLAG274bff09d [2022-12-13 18:44:18,849 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8/data/17fd27ae5/92bb4971e06f46cd970cc29016d2da63 [2022-12-13 18:44:18,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:44:18,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:44:18,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:44:18,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:44:18,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:44:18,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:44:18" (1/1) ... [2022-12-13 18:44:18,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cebcc8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:44:18, skipping insertion in model container [2022-12-13 18:44:18,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:44:18" (1/1) ... [2022-12-13 18:44:18,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:44:18,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:44:19,050 WARN L237 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_1438003c-9412-4c8f-95c5-e0d33e9d2c03/sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c[15980,15993] [2022-12-13 18:44:19,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:44:19,065 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:44:19,104 WARN L237 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_1438003c-9412-4c8f-95c5-e0d33e9d2c03/sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c[15980,15993] [2022-12-13 18:44:19,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:44:19,120 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:44:19,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:44:19 WrapperNode [2022-12-13 18:44:19,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:44:19,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:44:19,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:44:19,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:44:19,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:44:19" (1/1) ... [2022-12-13 18:44:19,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:44:19" (1/1) ... [2022-12-13 18:44:19,151 INFO L138 Inliner]: procedures = 52, calls = 95, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 160 [2022-12-13 18:44:19,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:44:19,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:44:19,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:44:19,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:44:19,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:44:19" (1/1) ... [2022-12-13 18:44:19,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:44:19" (1/1) ... [2022-12-13 18:44:19,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:44:19" (1/1) ... [2022-12-13 18:44:19,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:44:19" (1/1) ... [2022-12-13 18:44:19,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:44:19" (1/1) ... [2022-12-13 18:44:19,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:44:19" (1/1) ... [2022-12-13 18:44:19,167 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:44:19" (1/1) ... [2022-12-13 18:44:19,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:44:19" (1/1) ... [2022-12-13 18:44:19,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:44:19,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:44:19,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:44:19,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:44:19,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:44:19" (1/1) ... [2022-12-13 18:44:19,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:44:19,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:44:19,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:44:19,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:44:19,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:44:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-13 18:44:19,224 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-13 18:44:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-13 18:44:19,224 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-13 18:44:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-13 18:44:19,224 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-13 18:44:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-12-13 18:44:19,224 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-12-13 18:44:19,225 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-12-13 18:44:19,225 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-12-13 18:44:19,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:44:19,225 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-13 18:44:19,225 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-13 18:44:19,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:44:19,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:44:19,285 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:44:19,286 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:44:19,461 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:44:19,466 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:44:19,466 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 18:44:19,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:44:19 BoogieIcfgContainer [2022-12-13 18:44:19,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:44:19,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:44:19,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:44:19,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:44:19,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:44:18" (1/3) ... [2022-12-13 18:44:19,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111cc81a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:44:19, skipping insertion in model container [2022-12-13 18:44:19,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:44:19" (2/3) ... [2022-12-13 18:44:19,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111cc81a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:44:19, skipping insertion in model container [2022-12-13 18:44:19,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:44:19" (3/3) ... [2022-12-13 18:44:19,475 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product14.cil.c [2022-12-13 18:44:19,493 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:44:19,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 18:44:19,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:44:19,544 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@18e28285, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:44:19,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 18:44:19,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 61 states have internal predecessors, (76), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-13 18:44:19,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-13 18:44:19,568 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:44:19,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:44:19,569 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:44:19,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:44:19,575 INFO L85 PathProgramCache]: Analyzing trace with hash 543073060, now seen corresponding path program 1 times [2022-12-13 18:44:19,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:44:19,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321894942] [2022-12-13 18:44:19,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:44:19,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:44:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:19,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:44:19,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:44:19,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321894942] [2022-12-13 18:44:19,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321894942] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:44:19,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:44:19,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:44:19,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251942577] [2022-12-13 18:44:19,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:44:19,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:44:19,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:44:19,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:44:19,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:44:19,739 INFO L87 Difference]: Start difference. First operand has 72 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 61 states have internal predecessors, (76), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:44:19,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:44:19,761 INFO L93 Difference]: Finished difference Result 136 states and 183 transitions. [2022-12-13 18:44:19,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:44:19,762 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-12-13 18:44:19,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:44:19,768 INFO L225 Difference]: With dead ends: 136 [2022-12-13 18:44:19,769 INFO L226 Difference]: Without dead ends: 63 [2022-12-13 18:44:19,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:44:19,773 INFO L413 NwaCegarLoop]: 88 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, 88 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 [2022-12-13 18:44:19,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:44:19,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-12-13 18:44:19,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-12-13 18:44:19,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 53 states have internal predecessors, (62), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 18:44:19,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 79 transitions. [2022-12-13 18:44:19,802 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 79 transitions. Word has length 19 [2022-12-13 18:44:19,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:44:19,802 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 79 transitions. [2022-12-13 18:44:19,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:44:19,802 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2022-12-13 18:44:19,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 18:44:19,803 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:44:19,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:44:19,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:44:19,804 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:44:19,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:44:19,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1467291632, now seen corresponding path program 1 times [2022-12-13 18:44:19,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:44:19,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447440268] [2022-12-13 18:44:19,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:44:19,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:44:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:19,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:44:19,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:44:19,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447440268] [2022-12-13 18:44:19,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447440268] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:44:19,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:44:19,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:44:19,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281499692] [2022-12-13 18:44:19,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:44:19,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:44:19,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:44:19,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:44:19,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:44:19,881 INFO L87 Difference]: Start difference. First operand 63 states and 79 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:44:19,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:44:19,892 INFO L93 Difference]: Finished difference Result 91 states and 113 transitions. [2022-12-13 18:44:19,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:44:19,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-13 18:44:19,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:44:19,893 INFO L225 Difference]: With dead ends: 91 [2022-12-13 18:44:19,894 INFO L226 Difference]: Without dead ends: 54 [2022-12-13 18:44:19,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:44:19,895 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 13 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 115 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 [2022-12-13 18:44:19,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 115 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:44:19,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-12-13 18:44:19,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-12-13 18:44:19,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 47 states have internal predecessors, (55), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 18:44:19,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 67 transitions. [2022-12-13 18:44:19,901 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 67 transitions. Word has length 20 [2022-12-13 18:44:19,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:44:19,902 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 67 transitions. [2022-12-13 18:44:19,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:44:19,902 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 67 transitions. [2022-12-13 18:44:19,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 18:44:19,903 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:44:19,903 INFO L195 NwaCegarLoop]: 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] [2022-12-13 18:44:19,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:44:19,904 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:44:19,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:44:19,904 INFO L85 PathProgramCache]: Analyzing trace with hash -522814899, now seen corresponding path program 1 times [2022-12-13 18:44:19,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:44:19,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562691302] [2022-12-13 18:44:19,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:44:19,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:44:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:19,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:44:19,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:44:19,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562691302] [2022-12-13 18:44:19,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562691302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:44:19,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:44:19,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:44:19,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773168319] [2022-12-13 18:44:19,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:44:19,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:44:19,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:44:19,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:44:19,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:44:19,970 INFO L87 Difference]: Start difference. First operand 54 states and 67 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:44:19,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:44:19,987 INFO L93 Difference]: Finished difference Result 101 states and 128 transitions. [2022-12-13 18:44:19,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:44:19,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-12-13 18:44:19,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:44:19,989 INFO L225 Difference]: With dead ends: 101 [2022-12-13 18:44:19,989 INFO L226 Difference]: Without dead ends: 54 [2022-12-13 18:44:19,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:44:19,990 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 61 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:44:19,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 65 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:44:19,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-12-13 18:44:19,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-12-13 18:44:19,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 47 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 18:44:19,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2022-12-13 18:44:19,997 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 25 [2022-12-13 18:44:19,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:44:19,998 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2022-12-13 18:44:19,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:44:19,998 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2022-12-13 18:44:19,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-13 18:44:19,999 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:44:19,999 INFO L195 NwaCegarLoop]: 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] [2022-12-13 18:44:19,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 18:44:20,000 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:44:20,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:44:20,000 INFO L85 PathProgramCache]: Analyzing trace with hash -2111262197, now seen corresponding path program 1 times [2022-12-13 18:44:20,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:44:20,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731475820] [2022-12-13 18:44:20,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:44:20,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:44:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:20,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 18:44:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:20,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:44:20,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:44:20,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731475820] [2022-12-13 18:44:20,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731475820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:44:20,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:44:20,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:44:20,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448963942] [2022-12-13 18:44:20,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:44:20,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:44:20,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:44:20,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:44:20,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:44:20,112 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-12-13 18:44:20,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:44:20,167 INFO L93 Difference]: Finished difference Result 141 states and 181 transitions. [2022-12-13 18:44:20,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:44:20,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 30 [2022-12-13 18:44:20,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:44:20,169 INFO L225 Difference]: With dead ends: 141 [2022-12-13 18:44:20,169 INFO L226 Difference]: Without dead ends: 94 [2022-12-13 18:44:20,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:44:20,170 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 38 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:44:20,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 257 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:44:20,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-12-13 18:44:20,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-12-13 18:44:20,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 80 states have internal predecessors, (92), 12 states have call successors, (12), 10 states have call predecessors, (12), 9 states have return successors, (13), 9 states have call predecessors, (13), 12 states have call successors, (13) [2022-12-13 18:44:20,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 117 transitions. [2022-12-13 18:44:20,184 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 117 transitions. Word has length 30 [2022-12-13 18:44:20,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:44:20,184 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 117 transitions. [2022-12-13 18:44:20,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-12-13 18:44:20,184 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 117 transitions. [2022-12-13 18:44:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-13 18:44:20,185 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:44:20,185 INFO L195 NwaCegarLoop]: 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] [2022-12-13 18:44:20,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 18:44:20,186 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:44:20,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:44:20,186 INFO L85 PathProgramCache]: Analyzing trace with hash 904425670, now seen corresponding path program 1 times [2022-12-13 18:44:20,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:44:20,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435886257] [2022-12-13 18:44:20,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:44:20,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:44:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:20,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 18:44:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:20,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:44:20,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:44:20,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435886257] [2022-12-13 18:44:20,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435886257] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:44:20,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:44:20,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:44:20,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660962825] [2022-12-13 18:44:20,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:44:20,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:44:20,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:44:20,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:44:20,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:44:20,244 INFO L87 Difference]: Start difference. First operand 94 states and 117 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-12-13 18:44:20,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:44:20,260 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2022-12-13 18:44:20,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:44:20,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 32 [2022-12-13 18:44:20,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:44:20,262 INFO L225 Difference]: With dead ends: 160 [2022-12-13 18:44:20,262 INFO L226 Difference]: Without dead ends: 73 [2022-12-13 18:44:20,264 INFO L412 NwaCegarLoop]: 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 [2022-12-13 18:44:20,265 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:44:20,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 47 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:44:20,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-12-13 18:44:20,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-12-13 18:44:20,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.2280701754385965) internal successors, (70), 61 states have internal predecessors, (70), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 18:44:20,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 86 transitions. [2022-12-13 18:44:20,274 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 86 transitions. Word has length 32 [2022-12-13 18:44:20,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:44:20,274 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 86 transitions. [2022-12-13 18:44:20,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-12-13 18:44:20,275 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 86 transitions. [2022-12-13 18:44:20,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-13 18:44:20,275 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:44:20,275 INFO L195 NwaCegarLoop]: 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] [2022-12-13 18:44:20,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 18:44:20,276 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:44:20,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:44:20,276 INFO L85 PathProgramCache]: Analyzing trace with hash 884371153, now seen corresponding path program 1 times [2022-12-13 18:44:20,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:44:20,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744473532] [2022-12-13 18:44:20,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:44:20,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:44:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:20,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 18:44:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:20,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 18:44:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:20,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:44:20,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:44:20,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744473532] [2022-12-13 18:44:20,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744473532] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:44:20,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:44:20,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:44:20,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59575241] [2022-12-13 18:44:20,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:44:20,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:44:20,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:44:20,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:44:20,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:44:20,370 INFO L87 Difference]: Start difference. First operand 73 states and 86 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2022-12-13 18:44:20,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:44:20,437 INFO L93 Difference]: Finished difference Result 78 states and 91 transitions. [2022-12-13 18:44:20,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:44:20,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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 34 [2022-12-13 18:44:20,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:44:20,439 INFO L225 Difference]: With dead ends: 78 [2022-12-13 18:44:20,439 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 18:44:20,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 18:44:20,440 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:44:20,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 136 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:44:20,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 18:44:20,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 18:44:20,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:44:20,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 18:44:20,441 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2022-12-13 18:44:20,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:44:20,441 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 18:44:20,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2022-12-13 18:44:20,442 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 18:44:20,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 18:44:20,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 18:44:20,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 18:44:20,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 18:44:20,774 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 120 131) no Hoare annotation was computed. [2022-12-13 18:44:20,774 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 120 131) the Hoare annotation is: true [2022-12-13 18:44:20,774 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 120 131) no Hoare annotation was computed. [2022-12-13 18:44:20,774 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 783 812) no Hoare annotation was computed. [2022-12-13 18:44:20,775 INFO L899 garLoopResultBuilder]: For program point L797(lines 797 801) no Hoare annotation was computed. [2022-12-13 18:44:20,775 INFO L902 garLoopResultBuilder]: At program point L797-1(lines 797 801) the Hoare annotation is: true [2022-12-13 18:44:20,775 INFO L899 garLoopResultBuilder]: For program point L794(line 794) no Hoare annotation was computed. [2022-12-13 18:44:20,775 INFO L902 garLoopResultBuilder]: At program point L793-2(lines 793 807) the Hoare annotation is: true [2022-12-13 18:44:20,775 INFO L902 garLoopResultBuilder]: At program point L789(line 789) the Hoare annotation is: true [2022-12-13 18:44:20,775 INFO L899 garLoopResultBuilder]: For program point L789-1(line 789) no Hoare annotation was computed. [2022-12-13 18:44:20,775 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 783 812) the Hoare annotation is: true [2022-12-13 18:44:20,775 INFO L902 garLoopResultBuilder]: At program point L808(lines 783 812) the Hoare annotation is: true [2022-12-13 18:44:20,775 INFO L899 garLoopResultBuilder]: For program point L804(line 804) no Hoare annotation was computed. [2022-12-13 18:44:20,776 INFO L899 garLoopResultBuilder]: For program point L890(lines 890 896) no Hoare annotation was computed. [2022-12-13 18:44:20,776 INFO L899 garLoopResultBuilder]: For program point L886(lines 886 899) no Hoare annotation was computed. [2022-12-13 18:44:20,776 INFO L895 garLoopResultBuilder]: At program point L886-1(lines 878 902) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))) (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1))) [2022-12-13 18:44:20,776 INFO L899 garLoopResultBuilder]: For program point L622-1(lines 621 640) no Hoare annotation was computed. [2022-12-13 18:44:20,776 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 618 641) no Hoare annotation was computed. [2022-12-13 18:44:20,776 INFO L895 garLoopResultBuilder]: At program point L664(line 664) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-12-13 18:44:20,776 INFO L895 garLoopResultBuilder]: At program point getWaterLevel_returnLabel#1(lines 164 172) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= |timeShift_getWaterLevel_#res#1| 1)) (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1))) [2022-12-13 18:44:20,776 INFO L895 garLoopResultBuilder]: At program point L656(line 656) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-12-13 18:44:20,776 INFO L899 garLoopResultBuilder]: For program point L656-1(line 656) no Hoare annotation was computed. [2022-12-13 18:44:20,777 INFO L895 garLoopResultBuilder]: At program point L669(line 669) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2022-12-13 18:44:20,777 INFO L895 garLoopResultBuilder]: At program point L669-1(lines 650 674) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2022-12-13 18:44:20,777 INFO L895 garLoopResultBuilder]: At program point __automaton_fail_returnLabel#1(lines 773 780) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-12-13 18:44:20,777 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 618 641) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2022-12-13 18:44:20,777 INFO L899 garLoopResultBuilder]: For program point L777(line 777) no Hoare annotation was computed. [2022-12-13 18:44:20,777 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2022-12-13 18:44:20,777 INFO L895 garLoopResultBuilder]: At program point L100-2(lines 96 107) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-12-13 18:44:20,777 INFO L895 garLoopResultBuilder]: At program point deactivatePump_returnLabel#1(lines 700 707) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-12-13 18:44:20,777 INFO L899 garLoopResultBuilder]: For program point L629-1(lines 629 635) no Hoare annotation was computed. [2022-12-13 18:44:20,777 INFO L899 garLoopResultBuilder]: For program point L658(lines 658 666) no Hoare annotation was computed. [2022-12-13 18:44:20,777 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 671) no Hoare annotation was computed. [2022-12-13 18:44:20,777 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 618 641) no Hoare annotation was computed. [2022-12-13 18:44:20,778 INFO L895 garLoopResultBuilder]: At program point isPumpRunning_returnLabel#1(lines 719 727) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2022-12-13 18:44:20,778 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 777) no Hoare annotation was computed. [2022-12-13 18:44:20,778 INFO L895 garLoopResultBuilder]: At program point startSystem_returnLabel#1(lines 764 771) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-13 18:44:20,778 INFO L895 garLoopResultBuilder]: At program point L601(lines 552 602) the Hoare annotation is: false [2022-12-13 18:44:20,778 INFO L902 garLoopResultBuilder]: At program point runTest_returnLabel#1(lines 844 853) the Hoare annotation is: true [2022-12-13 18:44:20,778 INFO L895 garLoopResultBuilder]: At program point select_features_returnLabel#1(lines 64 70) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-12-13 18:44:20,778 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 854 876) the Hoare annotation is: true [2022-12-13 18:44:20,778 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 18:44:20,778 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 579) no Hoare annotation was computed. [2022-12-13 18:44:20,778 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 18:44:20,778 INFO L899 garLoopResultBuilder]: For program point L573-1(lines 573 579) no Hoare annotation was computed. [2022-12-13 18:44:20,779 INFO L895 garLoopResultBuilder]: At program point L598(lines 553 600) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-13 18:44:20,779 INFO L895 garLoopResultBuilder]: At program point L565(line 565) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-13 18:44:20,779 INFO L895 garLoopResultBuilder]: At program point setup_returnLabel#1(lines 837 843) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-12-13 18:44:20,779 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 18:44:20,779 INFO L899 garLoopResultBuilder]: For program point L591(lines 591 595) no Hoare annotation was computed. [2022-12-13 18:44:20,779 INFO L895 garLoopResultBuilder]: At program point L591-2(lines 583 596) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-13 18:44:20,779 INFO L899 garLoopResultBuilder]: For program point L554(lines 553 600) no Hoare annotation was computed. [2022-12-13 18:44:20,779 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 18:44:20,779 INFO L895 garLoopResultBuilder]: At program point select_helpers_returnLabel#1(lines 71 77) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-12-13 18:44:20,779 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 596) no Hoare annotation was computed. [2022-12-13 18:44:20,779 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 871) no Hoare annotation was computed. [2022-12-13 18:44:20,779 INFO L895 garLoopResultBuilder]: At program point L575(line 575) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-13 18:44:20,779 INFO L899 garLoopResultBuilder]: For program point L864-2(lines 864 871) no Hoare annotation was computed. [2022-12-13 18:44:20,780 INFO L902 garLoopResultBuilder]: At program point L604(lines 543 608) the Hoare annotation is: true [2022-12-13 18:44:20,780 INFO L899 garLoopResultBuilder]: For program point L563(lines 563 569) no Hoare annotation was computed. [2022-12-13 18:44:20,780 INFO L899 garLoopResultBuilder]: For program point L563-1(lines 563 569) no Hoare annotation was computed. [2022-12-13 18:44:20,780 INFO L895 garLoopResultBuilder]: At program point valid_product_returnLabel#1(lines 78 86) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-12-13 18:44:20,780 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 559) no Hoare annotation was computed. [2022-12-13 18:44:20,780 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 108 119) no Hoare annotation was computed. [2022-12-13 18:44:20,780 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 108 119) no Hoare annotation was computed. [2022-12-13 18:44:20,780 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 108 119) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-12-13 18:44:20,780 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 642 648) no Hoare annotation was computed. [2022-12-13 18:44:20,780 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 642 648) the Hoare annotation is: true [2022-12-13 18:44:20,780 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCritical_returnLabel#1(lines 132 140) the Hoare annotation is: true [2022-12-13 18:44:20,780 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 708 718) no Hoare annotation was computed. [2022-12-13 18:44:20,781 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 708 718) the Hoare annotation is: true [2022-12-13 18:44:20,781 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 708 718) no Hoare annotation was computed. [2022-12-13 18:44:20,783 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-13 18:44:20,785 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:44:20,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:44:20 BoogieIcfgContainer [2022-12-13 18:44:20,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:44:20,800 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:44:20,800 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:44:20,800 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:44:20,801 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:44:19" (3/4) ... [2022-12-13 18:44:20,803 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 18:44:20,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-13 18:44:20,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-13 18:44:20,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-13 18:44:20,808 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-13 18:44:20,808 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-12-13 18:44:20,808 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-12-13 18:44:20,811 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-13 18:44:20,811 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-13 18:44:20,812 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 18:44:20,812 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 18:44:20,812 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 18:44:20,830 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 == systemActive) [2022-12-13 18:44:20,831 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive) [2022-12-13 18:44:20,831 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) [2022-12-13 18:44:20,831 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 == systemActive) [2022-12-13 18:44:20,831 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) [2022-12-13 18:44:20,832 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-12-13 18:44:20,832 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 == systemActive) [2022-12-13 18:44:20,843 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:44:20,844 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:44:20,844 INFO L158 Benchmark]: Toolchain (without parser) took 1991.93ms. Allocated memory is still 213.9MB. Free memory was 159.5MB in the beginning and 140.3MB in the end (delta: 19.2MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-12-13 18:44:20,844 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:44:20,844 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.16ms. Allocated memory is still 213.9MB. Free memory was 159.5MB in the beginning and 141.6MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 18:44:20,844 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.11ms. Allocated memory is still 213.9MB. Free memory was 141.6MB in the beginning and 139.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:44:20,845 INFO L158 Benchmark]: Boogie Preprocessor took 17.55ms. Allocated memory is still 213.9MB. Free memory was 139.5MB in the beginning and 137.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:44:20,845 INFO L158 Benchmark]: RCFGBuilder took 299.53ms. Allocated memory is still 213.9MB. Free memory was 137.9MB in the beginning and 177.6MB in the end (delta: -39.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 18:44:20,845 INFO L158 Benchmark]: TraceAbstraction took 1329.33ms. Allocated memory is still 213.9MB. Free memory was 176.5MB in the beginning and 144.5MB in the end (delta: 32.1MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2022-12-13 18:44:20,845 INFO L158 Benchmark]: Witness Printer took 43.54ms. Allocated memory is still 213.9MB. Free memory was 144.5MB in the beginning and 140.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:44:20,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.16ms. Allocated memory is still 213.9MB. Free memory was 159.5MB in the beginning and 141.6MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.11ms. Allocated memory is still 213.9MB. Free memory was 141.6MB in the beginning and 139.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.55ms. Allocated memory is still 213.9MB. Free memory was 139.5MB in the beginning and 137.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 299.53ms. Allocated memory is still 213.9MB. Free memory was 137.9MB in the beginning and 177.6MB in the end (delta: -39.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1329.33ms. Allocated memory is still 213.9MB. Free memory was 176.5MB in the beginning and 144.5MB in the end (delta: 32.1MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. * Witness Printer took 43.54ms. Allocated memory is still 213.9MB. Free memory was 144.5MB in the beginning and 140.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 777]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 194 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 708 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 335 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 373 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 184 PreInvPairs, 208 NumberOfFragments, 311 HoareAnnotationTreeSize, 184 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 34 FomulaSimplificationsInter, 392 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 304 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 == systemActive) - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 837]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 793]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0 - InvariantResult [Line: 773]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 == systemActive) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 650]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive) - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 719]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 543]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 783]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 878]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0 - InvariantResult [Line: 700]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 == systemActive) - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-13 18:44:20,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1438003c-9412-4c8f-95c5-e0d33e9d2c03/bin/uautomizer-uyxdKDjOR8/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 Result: TRUE