./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R --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 aad1ec08d8a193b38b6e11f9698a2d5cafe1e5bac6d0d3a9987fa93ed6006219 --- 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-38b53e6 [2022-11-25 17:20:10,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:20:10,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:20:10,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:20:10,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:20:10,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:20:10,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:20:10,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:20:10,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:20:10,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:20:10,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:20:10,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:20:10,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:20:10,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:20:10,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:20:10,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:20:10,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:20:10,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:20:10,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:20:10,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:20:10,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:20:10,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:20:10,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:20:10,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:20:10,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:20:10,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:20:10,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:20:10,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:20:10,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:20:10,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:20:10,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:20:10,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:20:10,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:20:10,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:20:10,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:20:10,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:20:10,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:20:10,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:20:10,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:20:10,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:20:10,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:20:10,893 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:20:10,918 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:20:10,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:20:10,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:20:10,919 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:20:10,920 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:20:10,920 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:20:10,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:20:10,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:20:10,921 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:20:10,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:20:10,922 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:20:10,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:20:10,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:20:10,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:20:10,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:20:10,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:20:10,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:20:10,924 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:20:10,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:20:10,924 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:20:10,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:20:10,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:20:10,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:20:10,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:20:10,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:20:10,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:20:10,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:20:10,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:20:10,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:20:10,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:20:10,927 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:20:10,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:20:10,928 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:20:10,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:20:10,928 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_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad1ec08d8a193b38b6e11f9698a2d5cafe1e5bac6d0d3a9987fa93ed6006219 [2022-11-25 17:20:11,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:20:11,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:20:11,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:20:11,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:20:11,227 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:20:11,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2022-11-25 17:20:14,231 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:20:14,470 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:20:14,479 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2022-11-25 17:20:14,495 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/data/570b77a59/2e720ff44e2c4e61b0e2bb9088df5118/FLAG67e656d30 [2022-11-25 17:20:14,515 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/data/570b77a59/2e720ff44e2c4e61b0e2bb9088df5118 [2022-11-25 17:20:14,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:20:14,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:20:14,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:20:14,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:20:14,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:20:14,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:20:14" (1/1) ... [2022-11-25 17:20:14,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20ae77ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:14, skipping insertion in model container [2022-11-25 17:20:14,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:20:14" (1/1) ... [2022-11-25 17:20:14,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:20:14,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:20:14,891 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_389e004d-4b67-4076-87d5-45cf9cad17e1/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c[7021,7034] [2022-11-25 17:20:14,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:20:14,986 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:20:15,015 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_389e004d-4b67-4076-87d5-45cf9cad17e1/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c[7021,7034] [2022-11-25 17:20:15,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:20:15,069 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:20:15,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:15 WrapperNode [2022-11-25 17:20:15,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:20:15,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:20:15,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:20:15,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:20:15,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:15" (1/1) ... [2022-11-25 17:20:15,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:15" (1/1) ... [2022-11-25 17:20:15,115 INFO L138 Inliner]: procedures = 54, calls = 98, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 191 [2022-11-25 17:20:15,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:20:15,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:20:15,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:20:15,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:20:15,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:15" (1/1) ... [2022-11-25 17:20:15,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:15" (1/1) ... [2022-11-25 17:20:15,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:15" (1/1) ... [2022-11-25 17:20:15,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:15" (1/1) ... [2022-11-25 17:20:15,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:15" (1/1) ... [2022-11-25 17:20:15,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:15" (1/1) ... [2022-11-25 17:20:15,146 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:15" (1/1) ... [2022-11-25 17:20:15,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:15" (1/1) ... [2022-11-25 17:20:15,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:20:15,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:20:15,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:20:15,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:20:15,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:15" (1/1) ... [2022-11-25 17:20:15,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:20:15,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:20:15,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:20:15,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:20:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:20:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-25 17:20:15,252 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-25 17:20:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-25 17:20:15,252 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-25 17:20:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-25 17:20:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-25 17:20:15,253 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-25 17:20:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-25 17:20:15,253 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-25 17:20:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-25 17:20:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-25 17:20:15,254 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-25 17:20:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:20:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-25 17:20:15,254 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-25 17:20:15,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:20:15,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:20:15,333 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:20:15,336 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:20:15,673 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:20:15,680 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:20:15,681 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:20:15,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:20:15 BoogieIcfgContainer [2022-11-25 17:20:15,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:20:15,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:20:15,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:20:15,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:20:15,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:20:14" (1/3) ... [2022-11-25 17:20:15,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672d18e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:20:15, skipping insertion in model container [2022-11-25 17:20:15,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:15" (2/3) ... [2022-11-25 17:20:15,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672d18e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:20:15, skipping insertion in model container [2022-11-25 17:20:15,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:20:15" (3/3) ... [2022-11-25 17:20:15,695 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product37.cil.c [2022-11-25 17:20:15,716 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:20:15,716 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:20:15,777 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:20:15,784 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;@33c716ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:20:15,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:20:15,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 66 states have (on average 1.393939393939394) internal successors, (92), 74 states have internal predecessors, (92), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 17:20:15,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 17:20:15,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:15,806 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] [2022-11-25 17:20:15,807 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:20:15,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:15,815 INFO L85 PathProgramCache]: Analyzing trace with hash -985804635, now seen corresponding path program 1 times [2022-11-25 17:20:15,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:15,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720241197] [2022-11-25 17:20:15,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:15,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:16,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 17:20:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:16,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:16,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:16,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720241197] [2022-11-25 17:20:16,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720241197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:16,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:16,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:20:16,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66029288] [2022-11-25 17:20:16,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:16,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:20:16,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:16,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:20:16,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:20:16,069 INFO L87 Difference]: Start difference. First operand has 87 states, 66 states have (on average 1.393939393939394) internal successors, (92), 74 states have internal predecessors, (92), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:20:16,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:16,142 INFO L93 Difference]: Finished difference Result 165 states and 226 transitions. [2022-11-25 17:20:16,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:20:16,144 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-25 17:20:16,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:16,155 INFO L225 Difference]: With dead ends: 165 [2022-11-25 17:20:16,156 INFO L226 Difference]: Without dead ends: 78 [2022-11-25 17:20:16,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:20:16,164 INFO L413 NwaCegarLoop]: 110 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, 110 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 [2022-11-25 17:20:16,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:20:16,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-25 17:20:16,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-25 17:20:16,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 66 states have internal predecessors, (78), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 17:20:16,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2022-11-25 17:20:16,233 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 25 [2022-11-25 17:20:16,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:16,235 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2022-11-25 17:20:16,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:20:16,237 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2022-11-25 17:20:16,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 17:20:16,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:16,242 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] [2022-11-25 17:20:16,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:20:16,243 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:20:16,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:16,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1726186972, now seen corresponding path program 1 times [2022-11-25 17:20:16,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:16,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038237909] [2022-11-25 17:20:16,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:16,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:16,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:20:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:16,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:16,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:16,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038237909] [2022-11-25 17:20:16,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038237909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:16,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:16,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:20:16,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636830783] [2022-11-25 17:20:16,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:16,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:20:16,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:16,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:20:16,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:20:16,378 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:20:16,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:16,394 INFO L93 Difference]: Finished difference Result 121 states and 157 transitions. [2022-11-25 17:20:16,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:20:16,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-25 17:20:16,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:16,396 INFO L225 Difference]: With dead ends: 121 [2022-11-25 17:20:16,397 INFO L226 Difference]: Without dead ends: 69 [2022-11-25 17:20:16,397 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 [2022-11-25 17:20:16,399 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 12 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 160 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 [2022-11-25 17:20:16,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 160 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:20:16,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-25 17:20:16,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-25 17:20:16,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 60 states have internal predecessors, (71), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-25 17:20:16,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2022-11-25 17:20:16,408 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 26 [2022-11-25 17:20:16,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:16,409 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2022-11-25 17:20:16,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:20:16,409 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2022-11-25 17:20:16,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-25 17:20:16,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:16,411 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] [2022-11-25 17:20:16,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:20:16,411 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:20:16,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:16,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1161832603, now seen corresponding path program 1 times [2022-11-25 17:20:16,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:16,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646901965] [2022-11-25 17:20:16,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:16,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:16,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:20:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:16,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:16,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:16,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646901965] [2022-11-25 17:20:16,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646901965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:16,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:16,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:20:16,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671308827] [2022-11-25 17:20:16,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:16,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:20:16,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:16,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:20:16,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:20:16,511 INFO L87 Difference]: Start difference. First operand 69 states and 89 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2022-11-25 17:20:16,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:16,546 INFO L93 Difference]: Finished difference Result 130 states and 171 transitions. [2022-11-25 17:20:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:20:16,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 30 [2022-11-25 17:20:16,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:16,552 INFO L225 Difference]: With dead ends: 130 [2022-11-25 17:20:16,552 INFO L226 Difference]: Without dead ends: 69 [2022-11-25 17:20:16,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:20:16,554 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 70 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 87 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 [2022-11-25 17:20:16,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 87 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:20:16,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-25 17:20:16,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-25 17:20:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 53 states have (on average 1.320754716981132) internal successors, (70), 60 states have internal predecessors, (70), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-25 17:20:16,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2022-11-25 17:20:16,578 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 30 [2022-11-25 17:20:16,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:16,579 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2022-11-25 17:20:16,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2022-11-25 17:20:16,579 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2022-11-25 17:20:16,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-25 17:20:16,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:16,584 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, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:16,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:20:16,584 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:20:16,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:16,586 INFO L85 PathProgramCache]: Analyzing trace with hash 202365907, now seen corresponding path program 1 times [2022-11-25 17:20:16,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:16,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009569515] [2022-11-25 17:20:16,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:16,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:16,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:20:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:16,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:20:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:16,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 17:20:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:16,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:16,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:16,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009569515] [2022-11-25 17:20:16,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009569515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:16,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:16,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:20:16,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170217933] [2022-11-25 17:20:16,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:16,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:20:16,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:16,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:20:16,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:20:16,828 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:20:17,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:17,106 INFO L93 Difference]: Finished difference Result 204 states and 262 transitions. [2022-11-25 17:20:17,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:20:17,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2022-11-25 17:20:17,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:17,108 INFO L225 Difference]: With dead ends: 204 [2022-11-25 17:20:17,108 INFO L226 Difference]: Without dead ends: 143 [2022-11-25 17:20:17,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:20:17,112 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 161 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:17,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 281 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:20:17,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-11-25 17:20:17,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 137. [2022-11-25 17:20:17,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 105 states have (on average 1.2857142857142858) internal successors, (135), 112 states have internal predecessors, (135), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2022-11-25 17:20:17,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 170 transitions. [2022-11-25 17:20:17,136 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 170 transitions. Word has length 40 [2022-11-25 17:20:17,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:17,136 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 170 transitions. [2022-11-25 17:20:17,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:20:17,137 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 170 transitions. [2022-11-25 17:20:17,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 17:20:17,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:17,138 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:17,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:20:17,138 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:20:17,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:17,139 INFO L85 PathProgramCache]: Analyzing trace with hash 886374373, now seen corresponding path program 1 times [2022-11-25 17:20:17,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:17,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696953634] [2022-11-25 17:20:17,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:17,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:17,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:20:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:17,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:20:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:17,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:17,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:17,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696953634] [2022-11-25 17:20:17,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696953634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:17,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:17,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:20:17,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406828610] [2022-11-25 17:20:17,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:17,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:20:17,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:17,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:20:17,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:20:17,260 INFO L87 Difference]: Start difference. First operand 137 states and 170 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:20:17,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:17,588 INFO L93 Difference]: Finished difference Result 383 states and 498 transitions. [2022-11-25 17:20:17,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:20:17,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-11-25 17:20:17,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:17,598 INFO L225 Difference]: With dead ends: 383 [2022-11-25 17:20:17,598 INFO L226 Difference]: Without dead ends: 254 [2022-11-25 17:20:17,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:20:17,607 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 156 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:17,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 381 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:20:17,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-11-25 17:20:17,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 221. [2022-11-25 17:20:17,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 170 states have (on average 1.2882352941176471) internal successors, (219), 179 states have internal predecessors, (219), 25 states have call successors, (25), 23 states have call predecessors, (25), 25 states have return successors, (35), 25 states have call predecessors, (35), 25 states have call successors, (35) [2022-11-25 17:20:17,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 279 transitions. [2022-11-25 17:20:17,643 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 279 transitions. Word has length 44 [2022-11-25 17:20:17,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:17,644 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 279 transitions. [2022-11-25 17:20:17,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:20:17,644 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 279 transitions. [2022-11-25 17:20:17,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 17:20:17,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:17,646 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:17,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:20:17,646 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:20:17,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:17,647 INFO L85 PathProgramCache]: Analyzing trace with hash 463672547, now seen corresponding path program 1 times [2022-11-25 17:20:17,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:17,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110118970] [2022-11-25 17:20:17,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:17,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:17,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:20:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:17,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:20:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:17,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:17,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110118970] [2022-11-25 17:20:17,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110118970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:17,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:17,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:20:17,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511515787] [2022-11-25 17:20:17,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:17,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:20:17,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:17,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:20:17,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:20:17,762 INFO L87 Difference]: Start difference. First operand 221 states and 279 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:20:17,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:17,930 INFO L93 Difference]: Finished difference Result 448 states and 573 transitions. [2022-11-25 17:20:17,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:20:17,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-11-25 17:20:17,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:17,933 INFO L225 Difference]: With dead ends: 448 [2022-11-25 17:20:17,933 INFO L226 Difference]: Without dead ends: 235 [2022-11-25 17:20:17,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:20:17,935 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 60 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:17,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 350 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:20:17,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-11-25 17:20:17,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 227. [2022-11-25 17:20:17,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 176 states have (on average 1.2784090909090908) internal successors, (225), 185 states have internal predecessors, (225), 25 states have call successors, (25), 23 states have call predecessors, (25), 25 states have return successors, (35), 25 states have call predecessors, (35), 25 states have call successors, (35) [2022-11-25 17:20:17,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 285 transitions. [2022-11-25 17:20:17,965 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 285 transitions. Word has length 44 [2022-11-25 17:20:17,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:17,965 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 285 transitions. [2022-11-25 17:20:17,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:20:17,966 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 285 transitions. [2022-11-25 17:20:17,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 17:20:17,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:17,967 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:17,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:20:17,968 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:20:17,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:17,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1225271195, now seen corresponding path program 1 times [2022-11-25 17:20:17,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:17,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073303579] [2022-11-25 17:20:17,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:17,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:18,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:20:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:18,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:20:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:18,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:18,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:18,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073303579] [2022-11-25 17:20:18,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073303579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:18,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:18,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:20:18,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608345012] [2022-11-25 17:20:18,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:18,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:20:18,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:18,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:20:18,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:20:18,109 INFO L87 Difference]: Start difference. First operand 227 states and 285 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:20:18,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:18,299 INFO L93 Difference]: Finished difference Result 413 states and 524 transitions. [2022-11-25 17:20:18,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:20:18,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-11-25 17:20:18,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:18,301 INFO L225 Difference]: With dead ends: 413 [2022-11-25 17:20:18,301 INFO L226 Difference]: Without dead ends: 194 [2022-11-25 17:20:18,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:20:18,303 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 137 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:18,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 220 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:20:18,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-25 17:20:18,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 189. [2022-11-25 17:20:18,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 146 states have (on average 1.2534246575342465) internal successors, (183), 154 states have internal predecessors, (183), 21 states have call successors, (21), 19 states have call predecessors, (21), 21 states have return successors, (26), 21 states have call predecessors, (26), 21 states have call successors, (26) [2022-11-25 17:20:18,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 230 transitions. [2022-11-25 17:20:18,329 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 230 transitions. Word has length 44 [2022-11-25 17:20:18,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:18,330 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 230 transitions. [2022-11-25 17:20:18,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:20:18,330 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 230 transitions. [2022-11-25 17:20:18,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 17:20:18,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:18,332 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:18,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:20:18,333 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:20:18,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:18,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1754769083, now seen corresponding path program 1 times [2022-11-25 17:20:18,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:18,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663184864] [2022-11-25 17:20:18,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:18,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:18,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:20:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:18,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:20:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:18,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 17:20:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:18,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:18,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:18,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663184864] [2022-11-25 17:20:18,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663184864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:18,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:18,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:20:18,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327937365] [2022-11-25 17:20:18,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:18,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:20:18,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:18,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:20:18,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:20:18,469 INFO L87 Difference]: Start difference. First operand 189 states and 230 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:20:18,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:18,668 INFO L93 Difference]: Finished difference Result 384 states and 468 transitions. [2022-11-25 17:20:18,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:20:18,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2022-11-25 17:20:18,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:18,671 INFO L225 Difference]: With dead ends: 384 [2022-11-25 17:20:18,671 INFO L226 Difference]: Without dead ends: 203 [2022-11-25 17:20:18,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:20:18,673 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 113 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:18,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 325 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:20:18,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-25 17:20:18,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 186. [2022-11-25 17:20:18,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 143 states have (on average 1.2167832167832169) internal successors, (174), 151 states have internal predecessors, (174), 21 states have call successors, (21), 19 states have call predecessors, (21), 21 states have return successors, (26), 21 states have call predecessors, (26), 21 states have call successors, (26) [2022-11-25 17:20:18,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 221 transitions. [2022-11-25 17:20:18,692 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 221 transitions. Word has length 46 [2022-11-25 17:20:18,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:18,693 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 221 transitions. [2022-11-25 17:20:18,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:20:18,693 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 221 transitions. [2022-11-25 17:20:18,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-25 17:20:18,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:18,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:18,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:20:18,695 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:20:18,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:18,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1319361279, now seen corresponding path program 1 times [2022-11-25 17:20:18,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:18,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861411896] [2022-11-25 17:20:18,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:18,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:18,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:20:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:18,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 17:20:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:18,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:20:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:18,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:18,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:18,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861411896] [2022-11-25 17:20:18,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861411896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:18,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:18,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:20:18,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141218077] [2022-11-25 17:20:18,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:18,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:20:18,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:18,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:20:18,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:20:18,767 INFO L87 Difference]: Start difference. First operand 186 states and 221 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:20:19,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:19,081 INFO L93 Difference]: Finished difference Result 360 states and 441 transitions. [2022-11-25 17:20:19,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:20:19,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2022-11-25 17:20:19,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:19,087 INFO L225 Difference]: With dead ends: 360 [2022-11-25 17:20:19,087 INFO L226 Difference]: Without dead ends: 358 [2022-11-25 17:20:19,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:20:19,090 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 261 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:19,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 213 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:20:19,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-11-25 17:20:19,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 275. [2022-11-25 17:20:19,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 210 states have (on average 1.2190476190476192) internal successors, (256), 223 states have internal predecessors, (256), 31 states have call successors, (31), 28 states have call predecessors, (31), 33 states have return successors, (46), 31 states have call predecessors, (46), 31 states have call successors, (46) [2022-11-25 17:20:19,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 333 transitions. [2022-11-25 17:20:19,127 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 333 transitions. Word has length 48 [2022-11-25 17:20:19,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:19,127 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 333 transitions. [2022-11-25 17:20:19,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:20:19,128 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 333 transitions. [2022-11-25 17:20:19,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 17:20:19,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:19,130 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:19,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:20:19,130 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:20:19,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:19,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1077253484, now seen corresponding path program 1 times [2022-11-25 17:20:19,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:19,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974557297] [2022-11-25 17:20:19,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:19,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:19,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:20:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:19,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:20:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:19,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:20:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:19,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:20:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:19,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 17:20:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:19,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 17:20:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:19,282 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 17:20:19,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:19,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974557297] [2022-11-25 17:20:19,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974557297] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:20:19,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277684772] [2022-11-25 17:20:19,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:19,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:20:19,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:20:19,286 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:20:19,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:20:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:19,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:20:19,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:20:19,564 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:19,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:20:19,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277684772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:19,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:20:19,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2022-11-25 17:20:19,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621252179] [2022-11-25 17:20:19,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:19,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:20:19,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:19,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:20:19,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:20:19,578 INFO L87 Difference]: Start difference. First operand 275 states and 333 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 17:20:19,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:19,629 INFO L93 Difference]: Finished difference Result 461 states and 565 transitions. [2022-11-25 17:20:19,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:20:19,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 86 [2022-11-25 17:20:19,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:19,636 INFO L225 Difference]: With dead ends: 461 [2022-11-25 17:20:19,636 INFO L226 Difference]: Without dead ends: 240 [2022-11-25 17:20:19,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:20:19,642 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 37 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:19,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 190 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:20:19,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-11-25 17:20:19,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2022-11-25 17:20:19,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 182 states have (on average 1.2142857142857142) internal successors, (221), 194 states have internal predecessors, (221), 28 states have call successors, (28), 25 states have call predecessors, (28), 29 states have return successors, (36), 28 states have call predecessors, (36), 28 states have call successors, (36) [2022-11-25 17:20:19,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 285 transitions. [2022-11-25 17:20:19,713 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 285 transitions. Word has length 86 [2022-11-25 17:20:19,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:19,717 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 285 transitions. [2022-11-25 17:20:19,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 17:20:19,718 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 285 transitions. [2022-11-25 17:20:19,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-25 17:20:19,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:19,720 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:19,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 17:20:19,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 17:20:19,925 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:20:19,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:19,926 INFO L85 PathProgramCache]: Analyzing trace with hash 187606056, now seen corresponding path program 1 times [2022-11-25 17:20:19,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:19,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341210668] [2022-11-25 17:20:19,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:19,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:20,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:20:20,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:20,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:20:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:20,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:20:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:20,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:20:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:20,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-25 17:20:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:20,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 17:20:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:20,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:20:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:20,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 17:20:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:20,252 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 17:20:20,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:20,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341210668] [2022-11-25 17:20:20,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341210668] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:20:20,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359213058] [2022-11-25 17:20:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:20,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:20:20,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:20:20,255 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:20:20,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:20:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:20,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 17:20:20,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:20:20,810 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 17:20:20,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:20:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 17:20:21,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359213058] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 17:20:21,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:20:21,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 5] total 14 [2022-11-25 17:20:21,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173781367] [2022-11-25 17:20:21,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:21,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:20:21,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:21,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:20:21,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:20:21,091 INFO L87 Difference]: Start difference. First operand 240 states and 285 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:20:21,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:21,227 INFO L93 Difference]: Finished difference Result 684 states and 829 transitions. [2022-11-25 17:20:21,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:20:21,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 91 [2022-11-25 17:20:21,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:21,232 INFO L225 Difference]: With dead ends: 684 [2022-11-25 17:20:21,232 INFO L226 Difference]: Without dead ends: 452 [2022-11-25 17:20:21,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 188 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:20:21,234 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 52 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:21,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 423 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:20:21,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-11-25 17:20:21,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 408. [2022-11-25 17:20:21,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 306 states have (on average 1.1862745098039216) internal successors, (363), 327 states have internal predecessors, (363), 49 states have call successors, (49), 44 states have call predecessors, (49), 52 states have return successors, (65), 49 states have call predecessors, (65), 49 states have call successors, (65) [2022-11-25 17:20:21,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 477 transitions. [2022-11-25 17:20:21,288 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 477 transitions. Word has length 91 [2022-11-25 17:20:21,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:21,289 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 477 transitions. [2022-11-25 17:20:21,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:20:21,289 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 477 transitions. [2022-11-25 17:20:21,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-25 17:20:21,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:21,298 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:21,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:20:21,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:20:21,504 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:20:21,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:21,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1820456588, now seen corresponding path program 1 times [2022-11-25 17:20:21,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:21,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655152886] [2022-11-25 17:20:21,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:21,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:21,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:20:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:21,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:20:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:21,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 17:20:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:21,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:20:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:21,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:20:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:21,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:20:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:21,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 17:20:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:21,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:20:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:21,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 17:20:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:21,727 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:20:21,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:21,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655152886] [2022-11-25 17:20:21,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655152886] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:20:21,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676540310] [2022-11-25 17:20:21,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:21,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:20:21,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:20:21,730 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:20:21,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:20:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:21,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 17:20:21,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:20:21,991 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-25 17:20:21,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:20:21,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676540310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:21,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:20:21,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-11-25 17:20:21,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299658979] [2022-11-25 17:20:21,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:21,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:20:21,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:21,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:20:21,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:20:21,994 INFO L87 Difference]: Start difference. First operand 408 states and 477 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-25 17:20:22,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:22,136 INFO L93 Difference]: Finished difference Result 766 states and 901 transitions. [2022-11-25 17:20:22,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:20:22,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 95 [2022-11-25 17:20:22,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:22,138 INFO L225 Difference]: With dead ends: 766 [2022-11-25 17:20:22,138 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 17:20:22,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-11-25 17:20:22,140 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 47 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:22,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 728 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:20:22,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 17:20:22,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 17:20:22,141 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) [2022-11-25 17:20:22,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 17:20:22,142 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 95 [2022-11-25 17:20:22,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:22,142 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:20:22,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-25 17:20:22,143 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:20:22,143 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 17:20:22,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:20:22,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-25 17:20:22,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 17:20:22,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 17:20:27,319 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 87 93) no Hoare annotation was computed. [2022-11-25 17:20:27,319 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 87 93) the Hoare annotation is: true [2022-11-25 17:20:27,320 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 373 384) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~pumpRunning~0))) (.cse5 (not (<= |old(~methaneLevelCritical~0)| 0))) (.cse6 (and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))) (.cse7 (not (<= 0 |old(~methaneLevelCritical~0)|))) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse4 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 |old(~methaneLevelCritical~0)|))) (.cse8 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5 .cse6 .cse7 .cse8) (or .cse1 .cse2 .cse5 .cse6 .cse7 .cse8) (or .cse0 .cse4 .cse1 .cse3 .cse8))) [2022-11-25 17:20:27,320 INFO L899 garLoopResultBuilder]: For program point L377-1(lines 373 384) no Hoare annotation was computed. [2022-11-25 17:20:27,320 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 373 384) no Hoare annotation was computed. [2022-11-25 17:20:27,320 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 817 846) no Hoare annotation was computed. [2022-11-25 17:20:27,320 INFO L899 garLoopResultBuilder]: For program point L831(lines 831 835) no Hoare annotation was computed. [2022-11-25 17:20:27,320 INFO L902 garLoopResultBuilder]: At program point L831-1(lines 831 835) the Hoare annotation is: true [2022-11-25 17:20:27,320 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 817 846) the Hoare annotation is: true [2022-11-25 17:20:27,321 INFO L899 garLoopResultBuilder]: For program point L828(line 828) no Hoare annotation was computed. [2022-11-25 17:20:27,321 INFO L902 garLoopResultBuilder]: At program point L827-2(lines 827 841) the Hoare annotation is: true [2022-11-25 17:20:27,321 INFO L902 garLoopResultBuilder]: At program point L823(line 823) the Hoare annotation is: true [2022-11-25 17:20:27,321 INFO L899 garLoopResultBuilder]: For program point L823-1(line 823) no Hoare annotation was computed. [2022-11-25 17:20:27,321 INFO L902 garLoopResultBuilder]: At program point L842(lines 817 846) the Hoare annotation is: true [2022-11-25 17:20:27,321 INFO L899 garLoopResultBuilder]: For program point L838(line 838) no Hoare annotation was computed. [2022-11-25 17:20:27,321 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 385 393) the Hoare annotation is: true [2022-11-25 17:20:27,321 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 385 393) no Hoare annotation was computed. [2022-11-25 17:20:27,321 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 385 393) no Hoare annotation was computed. [2022-11-25 17:20:27,321 INFO L899 garLoopResultBuilder]: For program point L353(lines 353 357) no Hoare annotation was computed. [2022-11-25 17:20:27,322 INFO L895 garLoopResultBuilder]: At program point L353-2(lines 349 360) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 .cse2) (or .cse3 (= ~methAndRunningLastTime~0 0) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse3 .cse0 .cse2))) [2022-11-25 17:20:27,322 INFO L895 garLoopResultBuilder]: At program point L159(lines 154 161) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (or (and (<= 1 |timeShift_isMethaneAlarm_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~1#1|)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 .cse2))) [2022-11-25 17:20:27,322 INFO L899 garLoopResultBuilder]: For program point L329(lines 329 335) no Hoare annotation was computed. [2022-11-25 17:20:27,322 INFO L895 garLoopResultBuilder]: At program point L135(line 135) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 .cse2))) [2022-11-25 17:20:27,322 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 63 86) no Hoare annotation was computed. [2022-11-25 17:20:27,322 INFO L899 garLoopResultBuilder]: For program point L445(line 445) no Hoare annotation was computed. [2022-11-25 17:20:27,323 INFO L895 garLoopResultBuilder]: At program point L140(line 140) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse1))) [2022-11-25 17:20:27,323 INFO L895 garLoopResultBuilder]: At program point L140-1(lines 121 145) the Hoare annotation is: (let ((.cse6 (= 1 ~systemActive~0))) (let ((.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse2 (not .cse6)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3 (and .cse4 .cse5)) (or .cse2 (and .cse0 .cse4 (<= 1 |timeShift_isMethaneAlarm_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~1#1|) .cse6) .cse7 (not (<= 1 ~methaneLevelCritical~0))) (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse1 (and .cse4 .cse8) .cse2 (and (<= 1 ~pumpRunning~0) .cse5 .cse8) .cse3)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 (and .cse0 .cse4 .cse6) .cse7 .cse3)))) [2022-11-25 17:20:27,323 INFO L895 garLoopResultBuilder]: At program point L169(lines 162 172) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 .cse2) (or (<= 1 |timeShift_isMethaneAlarm_#res#1|) .cse0 .cse1 .cse3) (or .cse4 (= ~methAndRunningLastTime~0 0) .cse0 .cse1 .cse3) (or (not (= |old(~pumpRunning~0)| 0)) .cse4 .cse0 .cse2))) [2022-11-25 17:20:27,323 INFO L899 garLoopResultBuilder]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2022-11-25 17:20:27,324 INFO L895 garLoopResultBuilder]: At program point L322(line 322) the Hoare annotation is: (let ((.cse6 (= 1 ~systemActive~0))) (let ((.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse2 (not .cse6)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3 (and .cse4 .cse5)) (or .cse2 (and .cse0 .cse4 (<= 1 |timeShift_isMethaneAlarm_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~1#1|) .cse6) .cse7 (not (<= 1 ~methaneLevelCritical~0))) (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse1 (and .cse4 .cse8) .cse2 (and (<= 1 ~pumpRunning~0) .cse5 .cse8) .cse3)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 (and .cse0 .cse4 .cse6) .cse7 .cse3)))) [2022-11-25 17:20:27,324 INFO L899 garLoopResultBuilder]: For program point L322-1(line 322) no Hoare annotation was computed. [2022-11-25 17:20:27,324 INFO L895 garLoopResultBuilder]: At program point L446(lines 441 448) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 .cse1))) [2022-11-25 17:20:27,324 INFO L895 garLoopResultBuilder]: At program point L178(lines 173 181) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (= ~pumpRunning~0 0)) (.cse9 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse8 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (<= ~methaneLevelCritical~0 0))) (.cse7 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3 (and .cse4 .cse5)) (or .cse0 .cse1 .cse2 .cse6 .cse7) (or .cse2 .cse8 .cse3 (and .cse4 (<= 1 |timeShift_isMethaneAlarm_#res#1|) .cse9 (<= 1 |timeShift_processEnvironment_~tmp~1#1|))) (let ((.cse10 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse1 .cse2 (and (<= 1 ~pumpRunning~0) .cse5 .cse10) .cse3 (and .cse4 .cse9 .cse10))) (or .cse2 .cse8 .cse6 .cse7))) [2022-11-25 17:20:27,324 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 66 85) no Hoare annotation was computed. [2022-11-25 17:20:27,324 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 137) no Hoare annotation was computed. [2022-11-25 17:20:27,325 INFO L899 garLoopResultBuilder]: For program point L125(lines 125 142) no Hoare annotation was computed. [2022-11-25 17:20:27,325 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 63 86) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= 0 ~methaneLevelCritical~0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (and (= ~pumpRunning~0 0) .cse2 .cse3) .cse4) (or .cse1 .cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3) .cse4) (or .cse0 .cse2 .cse1 .cse5 (not (<= 1 ~methaneLevelCritical~0))))) [2022-11-25 17:20:27,325 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 63 86) no Hoare annotation was computed. [2022-11-25 17:20:27,325 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 445) no Hoare annotation was computed. [2022-11-25 17:20:27,325 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 338) no Hoare annotation was computed. [2022-11-25 17:20:27,325 INFO L895 garLoopResultBuilder]: At program point L167(line 167) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 .cse2) (or .cse3 (= ~methAndRunningLastTime~0 0) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse3 .cse0 .cse2))) [2022-11-25 17:20:27,325 INFO L899 garLoopResultBuilder]: For program point L167-1(line 167) no Hoare annotation was computed. [2022-11-25 17:20:27,326 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 341) no Hoare annotation was computed. [2022-11-25 17:20:27,326 INFO L895 garLoopResultBuilder]: At program point L324-1(lines 316 344) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0))) (let ((.cse11 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse10 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (not (<= ~methaneLevelCritical~0 0))) (.cse9 (not (<= 0 ~methaneLevelCritical~0))) (.cse14 (<= 1 ~pumpRunning~0)) (.cse6 (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| 0)) (.cse13 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (<= 0 |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1|)) (.cse0 (not .cse5)) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse12 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8 .cse9 (and .cse10 .cse4 .cse6 .cse7)) (or .cse2 .cse3 .cse11 (not (= |old(~waterLevel~0)| 1)) .cse0 .cse9) (or .cse2 .cse11 .cse0 .cse12 (and .cse10 .cse3 .cse4 .cse5 .cse13) (and .cse14 .cse13)) (or .cse2 .cse11 .cse0 (and .cse10 .cse3 .cse4 .cse5 .cse6 .cse13 .cse7) .cse8 .cse9 (and .cse14 .cse4 .cse6 .cse13 .cse7)) (or .cse0 .cse1 .cse12 (and .cse2 .cse3 .cse4 (<= 1 |timeShift_isMethaneAlarm_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~1#1|) .cse5))))) [2022-11-25 17:20:27,326 INFO L899 garLoopResultBuilder]: For program point L287(lines 287 291) no Hoare annotation was computed. [2022-11-25 17:20:27,326 INFO L895 garLoopResultBuilder]: At program point L287-2(lines 281 292) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= 0 ~methaneLevelCritical~0))) (or (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse0 .cse1 .cse2) (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2))) [2022-11-25 17:20:27,326 INFO L902 garLoopResultBuilder]: At program point L886(lines 878 888) the Hoare annotation is: true [2022-11-25 17:20:27,326 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 277) no Hoare annotation was computed. [2022-11-25 17:20:27,326 INFO L902 garLoopResultBuilder]: At program point L911(lines 892 914) the Hoare annotation is: true [2022-11-25 17:20:27,327 INFO L899 garLoopResultBuilder]: For program point L271-1(lines 271 277) no Hoare annotation was computed. [2022-11-25 17:20:27,327 INFO L902 garLoopResultBuilder]: At program point L300(lines 241 304) the Hoare annotation is: true [2022-11-25 17:20:27,327 INFO L895 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 0)) (.cse4 (<= 0 ~methaneLevelCritical~0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= ~pumpRunning~0 0) .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3))) [2022-11-25 17:20:27,327 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 17:20:27,327 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 17:20:27,327 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 17:20:27,327 INFO L895 garLoopResultBuilder]: At program point L313(lines 308 315) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2022-11-25 17:20:27,328 INFO L895 garLoopResultBuilder]: At program point L875(lines 871 877) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2022-11-25 17:20:27,328 INFO L895 garLoopResultBuilder]: At program point L297(lines 250 298) the Hoare annotation is: false [2022-11-25 17:20:27,328 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 17:20:27,328 INFO L899 garLoopResultBuilder]: For program point L252(lines 251 296) no Hoare annotation was computed. [2022-11-25 17:20:27,328 INFO L899 garLoopResultBuilder]: For program point L281(lines 281 292) no Hoare annotation was computed. [2022-11-25 17:20:27,328 INFO L895 garLoopResultBuilder]: At program point L946(lines 941 949) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2022-11-25 17:20:27,328 INFO L895 garLoopResultBuilder]: At program point L273(line 273) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 0)) (.cse4 (<= 0 ~methaneLevelCritical~0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= ~pumpRunning~0 0) .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3))) [2022-11-25 17:20:27,328 INFO L895 garLoopResultBuilder]: At program point L938(lines 934 940) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2022-11-25 17:20:27,329 INFO L895 garLoopResultBuilder]: At program point L294(lines 251 296) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 0)) (.cse4 (<= 0 ~methaneLevelCritical~0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= ~pumpRunning~0 0) .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3))) [2022-11-25 17:20:27,329 INFO L899 garLoopResultBuilder]: For program point L261(lines 261 267) no Hoare annotation was computed. [2022-11-25 17:20:27,329 INFO L899 garLoopResultBuilder]: For program point L261-1(lines 261 267) no Hoare annotation was computed. [2022-11-25 17:20:27,329 INFO L899 garLoopResultBuilder]: For program point L253(lines 253 257) no Hoare annotation was computed. [2022-11-25 17:20:27,329 INFO L899 garLoopResultBuilder]: For program point L902(lines 902 909) no Hoare annotation was computed. [2022-11-25 17:20:27,329 INFO L899 garLoopResultBuilder]: For program point L902-2(lines 902 909) no Hoare annotation was computed. [2022-11-25 17:20:27,329 INFO L895 garLoopResultBuilder]: At program point L931(lines 927 933) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2022-11-25 17:20:27,329 INFO L899 garLoopResultBuilder]: For program point L227-2(lines 227 231) no Hoare annotation was computed. [2022-11-25 17:20:27,330 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 95 119) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-25 17:20:27,330 INFO L895 garLoopResultBuilder]: At program point L151(lines 146 153) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= ~methaneLevelCritical~0 0)) .cse2))) [2022-11-25 17:20:27,330 INFO L895 garLoopResultBuilder]: At program point L114(line 114) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-25 17:20:27,330 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 95 119) no Hoare annotation was computed. [2022-11-25 17:20:27,330 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 436) no Hoare annotation was computed. [2022-11-25 17:20:27,330 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 95 119) no Hoare annotation was computed. [2022-11-25 17:20:27,331 INFO L895 garLoopResultBuilder]: At program point L435(lines 426 439) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) .cse2 .cse3) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= ~methaneLevelCritical~0 0)) .cse2))) [2022-11-25 17:20:27,331 INFO L895 garLoopResultBuilder]: At program point L109(line 109) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~2#1| 0)) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) .cse2 .cse3) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)) .cse2 .cse3) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= ~methaneLevelCritical~0 0)) .cse2))) [2022-11-25 17:20:27,331 INFO L895 garLoopResultBuilder]: At program point L233(lines 218 236) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~2#1| 0)) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0)) .cse2 .cse3) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= ~methaneLevelCritical~0 0)) .cse2))) [2022-11-25 17:20:27,331 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 111) no Hoare annotation was computed. [2022-11-25 17:20:27,331 INFO L899 garLoopResultBuilder]: For program point L99(lines 99 116) no Hoare annotation was computed. [2022-11-25 17:20:27,331 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 231) no Hoare annotation was computed. [2022-11-25 17:20:27,331 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 361 372) no Hoare annotation was computed. [2022-11-25 17:20:27,332 INFO L899 garLoopResultBuilder]: For program point L365-1(lines 361 372) no Hoare annotation was computed. [2022-11-25 17:20:27,332 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 361 372) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~pumpRunning~0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse3) (or (not (= ~pumpRunning~0 0)) .cse0 .cse2 .cse3 .cse4))) [2022-11-25 17:20:27,335 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:27,337 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:20:27,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:20:27 BoogieIcfgContainer [2022-11-25 17:20:27,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:20:27,365 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:20:27,365 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:20:27,365 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:20:27,366 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:20:15" (3/4) ... [2022-11-25 17:20:27,369 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:20:27,376 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-25 17:20:27,376 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-25 17:20:27,376 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-25 17:20:27,376 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-25 17:20:27,376 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-25 17:20:27,377 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-25 17:20:27,377 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-25 17:20:27,383 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-25 17:20:27,384 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-25 17:20:27,384 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 17:20:27,384 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:20:27,385 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:20:27,411 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) [2022-11-25 17:20:27,412 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && (((!(1 == systemActive) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && 1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((1 <= pumpRunning && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(0 <= methaneLevelCritical))) && ((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) [2022-11-25 17:20:27,412 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && tmp <= 0) && 0 <= tmp)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp <= 0) && 0 <= tmp)) && (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || (1 <= pumpRunning && \old(waterLevel) == waterLevel))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && tmp <= 0) && \old(waterLevel) == waterLevel) && 0 <= tmp)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || ((((1 <= pumpRunning && methAndRunningLastTime == 0) && tmp <= 0) && \old(waterLevel) == waterLevel) && 0 <= tmp))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 <= \result) && 1 <= tmp) && 1 == systemActive)) [2022-11-25 17:20:27,413 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && (((1 <= \result || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) [2022-11-25 17:20:27,413 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((pumpRunning == 0 && 1 <= \result) && \result == 0) && 1 <= tmp))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((1 <= pumpRunning && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2022-11-25 17:20:27,414 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && ((((1 <= \result && 1 <= tmp) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) [2022-11-25 17:20:27,414 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0)) && (((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(\result == 0)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2022-11-25 17:20:27,414 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) [2022-11-25 17:20:27,414 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0)) && (((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp___0 == 0)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2022-11-25 17:20:27,415 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 <= pumpRunning || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0)) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2022-11-25 17:20:27,437 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:20:27,438 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:20:27,438 INFO L158 Benchmark]: Toolchain (without parser) took 12913.91ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 103.7MB in the beginning and 60.5MB in the end (delta: 43.3MB). Peak memory consumption was 110.4MB. Max. memory is 16.1GB. [2022-11-25 17:20:27,439 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:20:27,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 544.18ms. Allocated memory is still 146.8MB. Free memory was 103.2MB in the beginning and 84.9MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 17:20:27,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.10ms. Allocated memory is still 146.8MB. Free memory was 84.9MB in the beginning and 82.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:20:27,440 INFO L158 Benchmark]: Boogie Preprocessor took 33.21ms. Allocated memory is still 146.8MB. Free memory was 82.8MB in the beginning and 81.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:20:27,451 INFO L158 Benchmark]: RCFGBuilder took 532.82ms. Allocated memory is still 146.8MB. Free memory was 81.3MB in the beginning and 113.5MB in the end (delta: -32.2MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-11-25 17:20:27,452 INFO L158 Benchmark]: TraceAbstraction took 11678.93ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 113.5MB in the beginning and 65.7MB in the end (delta: 47.7MB). Peak memory consumption was 120.3MB. Max. memory is 16.1GB. [2022-11-25 17:20:27,452 INFO L158 Benchmark]: Witness Printer took 72.63ms. Allocated memory is still 211.8MB. Free memory was 65.7MB in the beginning and 60.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:20:27,454 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 544.18ms. Allocated memory is still 146.8MB. Free memory was 103.2MB in the beginning and 84.9MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.10ms. Allocated memory is still 146.8MB. Free memory was 84.9MB in the beginning and 82.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.21ms. Allocated memory is still 146.8MB. Free memory was 82.8MB in the beginning and 81.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 532.82ms. Allocated memory is still 146.8MB. Free memory was 81.3MB in the beginning and 113.5MB in the end (delta: -32.2MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 11678.93ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 113.5MB in the beginning and 65.7MB in the end (delta: 47.7MB). Peak memory consumption was 120.3MB. Max. memory is 16.1GB. * Witness Printer took 72.63ms. Allocated memory is still 211.8MB. Free memory was 65.7MB in the beginning and 60.5MB in the end (delta: 5.2MB). 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: 445]: 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 8 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.6s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1135 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1106 mSDsluCounter, 3468 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2293 mSDsCounter, 266 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 910 IncrementalHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 266 mSolverCounterUnsat, 1175 mSDtfsCounter, 910 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 541 GetRequests, 450 SyntacticMatches, 3 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=408occurred in iteration=11, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 196 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 40 LocationsWithAnnotation, 937 PreInvPairs, 1035 NumberOfFragments, 1767 HoareAnnotationTreeSize, 937 FomulaSimplifications, 74 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 40 FomulaSimplificationsInter, 6944 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 891 NumberOfCodeBlocks, 891 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 966 ConstructedInterpolants, 0 QuantifiedInterpolants, 2586 SizeOfPredicates, 8 NumberOfNonLiveVariables, 970 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 213/235 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: 349]: Loop Invariant Derived loop invariant: ((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 927]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 892]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0)) && (((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(\result == 0)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 941]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 817]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && (((!(1 == systemActive) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && 1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((1 <= pumpRunning && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(0 <= methaneLevelCritical))) && ((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: (((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && (((1 <= \result || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 251]: Loop Invariant Derived loop invariant: (((((1 <= pumpRunning && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0) && 0 <= methaneLevelCritical) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0) && 0 <= methaneLevelCritical)) || (((1 <= pumpRunning && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 871]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0)) && (((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp___0 == 0)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 934]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: ((((((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && tmp <= 0) && 0 <= tmp)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp <= 0) && 0 <= tmp)) && (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || (1 <= pumpRunning && \old(waterLevel) == waterLevel))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && tmp <= 0) && \old(waterLevel) == waterLevel) && 0 <= tmp)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || ((((1 <= pumpRunning && methAndRunningLastTime == 0) && tmp <= 0) && \old(waterLevel) == waterLevel) && 0 <= tmp))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 <= \result) && 1 <= tmp) && 1 == systemActive)) - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && ((((1 <= \result && 1 <= tmp) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: (((((1 <= pumpRunning || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0)) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 878]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((pumpRunning == 0 && 1 <= \result) && \result == 0) && 1 <= tmp))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((1 <= pumpRunning && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) RESULT: Ultimate proved your program to be correct! [2022-11-25 17:20:27,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389e004d-4b67-4076-87d5-45cf9cad17e1/bin/uautomizer-ZsLfNo2U6R/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