./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 690d9fe310e470fa54abb43d61d054401e7692fe0de366fc3accadb640a888e5 --- 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-dbf71c6-m [2022-10-17 17:41:48,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:41:48,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:41:48,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:41:48,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:41:48,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:41:48,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:41:48,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:41:48,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:41:48,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:41:48,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:41:48,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:41:48,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:41:48,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:41:48,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:41:48,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:41:48,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:41:48,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:41:48,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:41:48,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:41:48,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:41:48,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:41:48,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:41:48,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:41:48,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:41:48,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:41:48,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:41:48,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:41:48,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:41:48,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:41:48,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:41:48,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:41:48,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:41:48,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:41:48,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:41:48,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:41:48,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:41:48,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:41:48,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:41:48,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:41:48,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:41:48,903 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-10-17 17:41:48,950 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:41:48,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:41:48,952 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:41:48,952 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:41:48,953 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:41:48,953 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:41:48,954 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:41:48,954 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:41:48,954 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:41:48,954 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:41:48,955 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:41:48,956 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:41:48,956 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:41:48,956 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:41:48,956 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:41:48,957 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:41:48,957 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:41:48,957 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:41:48,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:41:48,958 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:41:48,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:41:48,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:41:48,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:41:48,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:41:48,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:41:48,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:41:48,961 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:41:48,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:41:48,961 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:41:48,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:41:48,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:41:48,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:41:48,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:41:48,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:41:48,963 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:41:48,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:41:48,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:41:48,964 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:41:48,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:41:48,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:41:48,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:41:48,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 690d9fe310e470fa54abb43d61d054401e7692fe0de366fc3accadb640a888e5 [2022-10-17 17:41:49,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:41:49,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:41:49,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:41:49,304 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:41:49,304 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:41:49,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c [2022-10-17 17:41:49,376 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/data/e28a471f9/0004c33c83ba479bbe4e4280764da51f/FLAG9f06350d1 [2022-10-17 17:41:49,862 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:41:49,863 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c [2022-10-17 17:41:49,877 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/data/e28a471f9/0004c33c83ba479bbe4e4280764da51f/FLAG9f06350d1 [2022-10-17 17:41:50,190 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/data/e28a471f9/0004c33c83ba479bbe4e4280764da51f [2022-10-17 17:41:50,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:41:50,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:41:50,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:41:50,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:41:50,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:41:50,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:41:50" (1/1) ... [2022-10-17 17:41:50,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664d4fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:50, skipping insertion in model container [2022-10-17 17:41:50,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:41:50" (1/1) ... [2022-10-17 17:41:50,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:41:50,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:41:50,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c[6162,6175] [2022-10-17 17:41:50,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:41:50,756 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:41:50,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c[6162,6175] [2022-10-17 17:41:50,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:41:50,893 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:41:50,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:50 WrapperNode [2022-10-17 17:41:50,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:41:50,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:41:50,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:41:50,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:41:50,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:50" (1/1) ... [2022-10-17 17:41:50,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:50" (1/1) ... [2022-10-17 17:41:50,960 INFO L138 Inliner]: procedures = 52, calls = 151, calls flagged for inlining = 19, calls inlined = 16, statements flattened = 212 [2022-10-17 17:41:50,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:41:50,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:41:50,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:41:50,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:41:50,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:50" (1/1) ... [2022-10-17 17:41:50,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:50" (1/1) ... [2022-10-17 17:41:50,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:50" (1/1) ... [2022-10-17 17:41:50,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:50" (1/1) ... [2022-10-17 17:41:50,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:50" (1/1) ... [2022-10-17 17:41:50,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:50" (1/1) ... [2022-10-17 17:41:50,986 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:50" (1/1) ... [2022-10-17 17:41:50,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:50" (1/1) ... [2022-10-17 17:41:50,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:41:50,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:41:50,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:41:50,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:41:50,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:50" (1/1) ... [2022-10-17 17:41:51,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:41:51,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:41:51,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:41:51,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:41:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:41:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-10-17 17:41:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-10-17 17:41:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-10-17 17:41:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-10-17 17:41:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-10-17 17:41:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-10-17 17:41:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-10-17 17:41:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-10-17 17:41:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-10-17 17:41:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-10-17 17:41:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-10-17 17:41:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-10-17 17:41:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:41:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-10-17 17:41:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-10-17 17:41:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:41:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:41:51,165 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:41:51,167 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:41:51,647 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:41:51,739 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:41:51,749 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 17:41:51,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:41:51 BoogieIcfgContainer [2022-10-17 17:41:51,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:41:51,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:41:51,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:41:51,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:41:51,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:41:50" (1/3) ... [2022-10-17 17:41:51,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2864c255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:41:51, skipping insertion in model container [2022-10-17 17:41:51,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:50" (2/3) ... [2022-10-17 17:41:51,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2864c255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:41:51, skipping insertion in model container [2022-10-17 17:41:51,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:41:51" (3/3) ... [2022-10-17 17:41:51,766 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product07.cil.c [2022-10-17 17:41:51,788 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:41:51,788 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:41:51,844 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:41:51,851 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=FINITE_AUTOMATA, 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;@d4d1750, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:41:51,852 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:41:51,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 45 states have internal predecessors, (55), 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) [2022-10-17 17:41:51,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 17:41:51,867 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:51,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:51,868 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:41:51,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:51,874 INFO L85 PathProgramCache]: Analyzing trace with hash 478990500, now seen corresponding path program 1 times [2022-10-17 17:41:51,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:51,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326348588] [2022-10-17 17:41:51,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:51,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:52,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:41:52,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:52,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326348588] [2022-10-17 17:41:52,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326348588] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:52,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:41:52,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 17:41:52,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640772581] [2022-10-17 17:41:52,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:52,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 17:41:52,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:52,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 17:41:52,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 17:41:52,228 INFO L87 Difference]: Start difference. First operand has 59 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 45 states have internal predecessors, (55), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-10-17 17:41:52,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:52,295 INFO L93 Difference]: Finished difference Result 116 states and 159 transitions. [2022-10-17 17:41:52,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 17:41:52,298 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 17 [2022-10-17 17:41:52,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:52,305 INFO L225 Difference]: With dead ends: 116 [2022-10-17 17:41:52,305 INFO L226 Difference]: Without dead ends: 54 [2022-10-17 17:41:52,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 17:41:52,313 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:52,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 17:41:52,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-17 17:41:52,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-10-17 17:41:52,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 41 states have internal predecessors, (47), 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) [2022-10-17 17:41:52,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2022-10-17 17:41:52,360 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 17 [2022-10-17 17:41:52,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:52,361 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2022-10-17 17:41:52,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-10-17 17:41:52,362 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2022-10-17 17:41:52,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 17:41:52,364 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:52,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:52,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:41:52,365 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:41:52,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:52,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1044510391, now seen corresponding path program 1 times [2022-10-17 17:41:52,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:52,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705981563] [2022-10-17 17:41:52,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:52,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:52,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:41:52,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:52,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705981563] [2022-10-17 17:41:52,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705981563] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:52,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:41:52,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:41:52,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130376272] [2022-10-17 17:41:52,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:52,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:41:52,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:52,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:41:52,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:41:52,534 INFO L87 Difference]: Start difference. First operand 54 states and 70 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-10-17 17:41:52,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:52,614 INFO L93 Difference]: Finished difference Result 80 states and 102 transitions. [2022-10-17 17:41:52,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:41:52,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 18 [2022-10-17 17:41:52,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:52,619 INFO L225 Difference]: With dead ends: 80 [2022-10-17 17:41:52,619 INFO L226 Difference]: Without dead ends: 46 [2022-10-17 17:41:52,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:41:52,626 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 14 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:52,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 77 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:41:52,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-17 17:41:52,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-10-17 17:41:52,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 36 states have internal predecessors, (41), 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) [2022-10-17 17:41:52,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2022-10-17 17:41:52,649 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 18 [2022-10-17 17:41:52,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:52,650 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2022-10-17 17:41:52,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-10-17 17:41:52,650 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2022-10-17 17:41:52,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-17 17:41:52,654 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:52,655 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] [2022-10-17 17:41:52,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 17:41:52,655 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:41:52,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:52,656 INFO L85 PathProgramCache]: Analyzing trace with hash -891692283, now seen corresponding path program 1 times [2022-10-17 17:41:52,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:52,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990098785] [2022-10-17 17:41:52,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:52,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:52,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:41:52,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:52,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990098785] [2022-10-17 17:41:52,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990098785] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:52,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:41:52,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 17:41:52,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374279219] [2022-10-17 17:41:52,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:52,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:41:52,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:52,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:41:52,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:41:52,874 INFO L87 Difference]: Start difference. First operand 46 states and 59 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-10-17 17:41:53,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:53,088 INFO L93 Difference]: Finished difference Result 138 states and 184 transitions. [2022-10-17 17:41:53,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 17:41:53,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 21 [2022-10-17 17:41:53,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:53,099 INFO L225 Difference]: With dead ends: 138 [2022-10-17 17:41:53,099 INFO L226 Difference]: Without dead ends: 94 [2022-10-17 17:41:53,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:41:53,108 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 73 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:53,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 146 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:41:53,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-17 17:41:53,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 77. [2022-10-17 17:41:53,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 60 states have internal predecessors, (70), 14 states have call successors, (14), 11 states have call predecessors, (14), 11 states have return successors, (15), 11 states have call predecessors, (15), 14 states have call successors, (15) [2022-10-17 17:41:53,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2022-10-17 17:41:53,149 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 21 [2022-10-17 17:41:53,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:53,150 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2022-10-17 17:41:53,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-10-17 17:41:53,150 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2022-10-17 17:41:53,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 17:41:53,152 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:53,152 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] [2022-10-17 17:41:53,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 17:41:53,153 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:41:53,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:53,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1546560007, now seen corresponding path program 1 times [2022-10-17 17:41:53,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:53,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804463181] [2022-10-17 17:41:53,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:53,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:53,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:41:53,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:53,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804463181] [2022-10-17 17:41:53,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804463181] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:53,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:41:53,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 17:41:53,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998290408] [2022-10-17 17:41:53,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:53,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 17:41:53,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:53,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 17:41:53,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 17:41:53,327 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 17:41:53,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:53,478 INFO L93 Difference]: Finished difference Result 223 states and 292 transitions. [2022-10-17 17:41:53,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 17:41:53,479 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-10-17 17:41:53,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:53,484 INFO L225 Difference]: With dead ends: 223 [2022-10-17 17:41:53,484 INFO L226 Difference]: Without dead ends: 148 [2022-10-17 17:41:53,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-17 17:41:53,496 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 34 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:53,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 239 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:41:53,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-10-17 17:41:53,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 140. [2022-10-17 17:41:53,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 93 states have (on average 1.3440860215053763) internal successors, (125), 108 states have internal predecessors, (125), 26 states have call successors, (26), 20 states have call predecessors, (26), 20 states have return successors, (28), 20 states have call predecessors, (28), 26 states have call successors, (28) [2022-10-17 17:41:53,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 179 transitions. [2022-10-17 17:41:53,526 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 179 transitions. Word has length 24 [2022-10-17 17:41:53,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:53,526 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 179 transitions. [2022-10-17 17:41:53,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 17:41:53,527 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 179 transitions. [2022-10-17 17:41:53,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 17:41:53,536 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:53,536 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] [2022-10-17 17:41:53,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 17:41:53,537 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:41:53,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:53,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1322907161, now seen corresponding path program 1 times [2022-10-17 17:41:53,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:53,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806445133] [2022-10-17 17:41:53,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:53,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:53,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:41:53,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:53,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806445133] [2022-10-17 17:41:53,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806445133] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:53,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:41:53,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:41:53,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642238911] [2022-10-17 17:41:53,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:53,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:41:53,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:53,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:41:53,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:41:53,685 INFO L87 Difference]: Start difference. First operand 140 states and 179 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, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 17:41:53,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:53,765 INFO L93 Difference]: Finished difference Result 215 states and 282 transitions. [2022-10-17 17:41:53,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:41:53,766 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, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-10-17 17:41:53,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:53,776 INFO L225 Difference]: With dead ends: 215 [2022-10-17 17:41:53,776 INFO L226 Difference]: Without dead ends: 213 [2022-10-17 17:41:53,777 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 [2022-10-17 17:41:53,777 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 34 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:53,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 99 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:41:53,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-10-17 17:41:53,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2022-10-17 17:41:53,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 141 states have (on average 1.3475177304964538) internal successors, (190), 164 states have internal predecessors, (190), 40 states have call successors, (40), 31 states have call predecessors, (40), 31 states have return successors, (49), 31 states have call predecessors, (49), 40 states have call successors, (49) [2022-10-17 17:41:53,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 279 transitions. [2022-10-17 17:41:53,852 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 279 transitions. Word has length 27 [2022-10-17 17:41:53,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:53,853 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 279 transitions. [2022-10-17 17:41:53,853 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, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 17:41:53,853 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 279 transitions. [2022-10-17 17:41:53,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-17 17:41:53,869 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:53,870 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-17 17:41:53,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 17:41:53,870 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:41:53,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:53,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1730146512, now seen corresponding path program 1 times [2022-10-17 17:41:53,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:53,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126841113] [2022-10-17 17:41:53,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:53,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 17:41:54,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:54,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126841113] [2022-10-17 17:41:54,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126841113] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:54,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:41:54,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 17:41:54,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6680437] [2022-10-17 17:41:54,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:54,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 17:41:54,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:54,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 17:41:54,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-17 17:41:54,083 INFO L87 Difference]: Start difference. First operand 213 states and 279 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-10-17 17:41:54,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:54,210 INFO L93 Difference]: Finished difference Result 329 states and 433 transitions. [2022-10-17 17:41:54,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 17:41:54,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2022-10-17 17:41:54,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:54,213 INFO L225 Difference]: With dead ends: 329 [2022-10-17 17:41:54,214 INFO L226 Difference]: Without dead ends: 0 [2022-10-17 17:41:54,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-17 17:41:54,218 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 35 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:54,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 50 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:41:54,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-17 17:41:54,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-17 17:41:54,219 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) [2022-10-17 17:41:54,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-17 17:41:54,220 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2022-10-17 17:41:54,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:54,220 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 17:41:54,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-10-17 17:41:54,220 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-17 17:41:54,221 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 17:41:54,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 17:41:54,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 17:41:54,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-17 17:41:54,937 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 211 218) the Hoare annotation is: true [2022-10-17 17:41:54,938 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 211 218) no Hoare annotation was computed. [2022-10-17 17:41:54,938 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 170 176) no Hoare annotation was computed. [2022-10-17 17:41:54,938 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 170 176) the Hoare annotation is: true [2022-10-17 17:41:54,938 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 82 93) the Hoare annotation is: true [2022-10-17 17:41:54,938 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2022-10-17 17:41:54,938 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 773 802) no Hoare annotation was computed. [2022-10-17 17:41:54,938 INFO L902 garLoopResultBuilder]: At program point L798(lines 773 802) the Hoare annotation is: true [2022-10-17 17:41:54,938 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 773 802) the Hoare annotation is: true [2022-10-17 17:41:54,938 INFO L899 garLoopResultBuilder]: For program point L794(line 794) no Hoare annotation was computed. [2022-10-17 17:41:54,939 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 791) no Hoare annotation was computed. [2022-10-17 17:41:54,939 INFO L902 garLoopResultBuilder]: At program point L787-1(lines 787 791) the Hoare annotation is: true [2022-10-17 17:41:54,939 INFO L902 garLoopResultBuilder]: At program point L783-2(lines 783 797) the Hoare annotation is: true [2022-10-17 17:41:54,939 INFO L902 garLoopResultBuilder]: At program point L779(line 779) the Hoare annotation is: true [2022-10-17 17:41:54,939 INFO L899 garLoopResultBuilder]: For program point L779-1(line 779) no Hoare annotation was computed. [2022-10-17 17:41:54,939 INFO L895 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-10-17 17:41:54,939 INFO L895 garLoopResultBuilder]: At program point L188(line 188) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-10-17 17:41:54,940 INFO L895 garLoopResultBuilder]: At program point L197(line 197) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (not (= 0 ~systemActive~0)))) [2022-10-17 17:41:54,940 INFO L895 garLoopResultBuilder]: At program point L197-1(lines 178 202) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (not (= 0 ~systemActive~0)))) [2022-10-17 17:41:54,940 INFO L899 garLoopResultBuilder]: For program point L891(lines 891 901) no Hoare annotation was computed. [2022-10-17 17:41:54,940 INFO L895 garLoopResultBuilder]: At program point L887(lines 887 904) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~6#1| 0)) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2022-10-17 17:41:54,940 INFO L895 garLoopResultBuilder]: At program point L887-1(lines 879 907) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~6#1| 0)) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2022-10-17 17:41:54,941 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 157 163) no Hoare annotation was computed. [2022-10-17 17:41:54,941 INFO L899 garLoopResultBuilder]: For program point L892(lines 892 898) no Hoare annotation was computed. [2022-10-17 17:41:54,941 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 194) no Hoare annotation was computed. [2022-10-17 17:41:54,941 INFO L899 garLoopResultBuilder]: For program point L182(lines 182 199) no Hoare annotation was computed. [2022-10-17 17:41:54,941 INFO L895 garLoopResultBuilder]: At program point L401(line 401) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-10-17 17:41:54,941 INFO L895 garLoopResultBuilder]: At program point L224(line 224) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-10-17 17:41:54,941 INFO L895 garLoopResultBuilder]: At program point L224-1(line 224) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-10-17 17:41:54,941 INFO L899 garLoopResultBuilder]: For program point L150-1(lines 149 168) no Hoare annotation was computed. [2022-10-17 17:41:54,942 INFO L895 garLoopResultBuilder]: At program point L885(line 885) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-10-17 17:41:54,942 INFO L899 garLoopResultBuilder]: For program point L885-1(line 885) no Hoare annotation was computed. [2022-10-17 17:41:54,942 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 146 169) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-10-17 17:41:54,942 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 146 169) no Hoare annotation was computed. [2022-10-17 17:41:54,942 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 401) no Hoare annotation was computed. [2022-10-17 17:41:54,942 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 94 102) the Hoare annotation is: true [2022-10-17 17:41:54,942 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 94 102) no Hoare annotation was computed. [2022-10-17 17:41:54,942 INFO L902 garLoopResultBuilder]: At program point L353(lines 292 357) the Hoare annotation is: true [2022-10-17 17:41:54,943 INFO L899 garLoopResultBuilder]: For program point L312(lines 312 318) no Hoare annotation was computed. [2022-10-17 17:41:54,943 INFO L899 garLoopResultBuilder]: For program point L312-1(lines 312 318) no Hoare annotation was computed. [2022-10-17 17:41:54,943 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 285) no Hoare annotation was computed. [2022-10-17 17:41:54,943 INFO L895 garLoopResultBuilder]: At program point L279-1(lines 279 285) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-10-17 17:41:54,943 INFO L895 garLoopResultBuilder]: At program point L350(lines 301 351) the Hoare annotation is: false [2022-10-17 17:41:54,943 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-10-17 17:41:54,943 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 344) no Hoare annotation was computed. [2022-10-17 17:41:54,943 INFO L895 garLoopResultBuilder]: At program point L338-2(lines 332 345) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-10-17 17:41:54,943 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 328) no Hoare annotation was computed. [2022-10-17 17:41:54,943 INFO L899 garLoopResultBuilder]: For program point L322-1(lines 322 328) no Hoare annotation was computed. [2022-10-17 17:41:54,943 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-17 17:41:54,944 INFO L895 garLoopResultBuilder]: At program point L347(lines 302 349) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-10-17 17:41:54,944 INFO L895 garLoopResultBuilder]: At program point L314(line 314) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-10-17 17:41:54,944 INFO L895 garLoopResultBuilder]: At program point L281(line 281) the Hoare annotation is: false [2022-10-17 17:41:54,944 INFO L895 garLoopResultBuilder]: At program point L856(lines 856 863) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0) (not (= 0 ~systemActive~0))) [2022-10-17 17:41:54,944 INFO L902 garLoopResultBuilder]: At program point L856-2(lines 856 863) the Hoare annotation is: true [2022-10-17 17:41:54,944 INFO L899 garLoopResultBuilder]: For program point L303(lines 302 349) no Hoare annotation was computed. [2022-10-17 17:41:54,944 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 345) no Hoare annotation was computed. [2022-10-17 17:41:54,944 INFO L895 garLoopResultBuilder]: At program point L324(line 324) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-10-17 17:41:54,944 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2022-10-17 17:41:54,945 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 70 81) the Hoare annotation is: true [2022-10-17 17:41:54,949 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-10-17 17:41:54,951 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 17:41:54,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 05:41:54 BoogieIcfgContainer [2022-10-17 17:41:54,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 17:41:54,969 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:41:54,969 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:41:54,970 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:41:54,970 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:41:51" (3/4) ... [2022-10-17 17:41:54,973 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 17:41:54,979 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-10-17 17:41:54,979 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-10-17 17:41:54,979 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-10-17 17:41:54,979 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-10-17 17:41:54,979 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-10-17 17:41:54,979 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-10-17 17:41:54,980 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-10-17 17:41:54,988 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 65 nodes and edges [2022-10-17 17:41:54,988 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-10-17 17:41:54,989 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-10-17 17:41:54,989 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-10-17 17:41:54,990 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 17:41:54,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 17:41:54,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 17:41:55,017 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-10-17 17:41:55,018 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && !(0 == systemActive)) [2022-10-17 17:41:55,019 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) [2022-10-17 17:41:55,019 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) [2022-10-17 17:41:55,020 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) [2022-10-17 17:41:55,020 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) [2022-10-17 17:41:55,052 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/witness.graphml [2022-10-17 17:41:55,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:41:55,053 INFO L158 Benchmark]: Toolchain (without parser) took 4857.91ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 79.4MB in the beginning and 88.7MB in the end (delta: -9.2MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2022-10-17 17:41:55,053 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:41:55,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.31ms. Allocated memory is still 119.5MB. Free memory was 79.2MB in the beginning and 84.0MB in the end (delta: -4.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 17:41:55,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.19ms. Allocated memory is still 119.5MB. Free memory was 84.0MB in the beginning and 81.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:41:55,055 INFO L158 Benchmark]: Boogie Preprocessor took 29.69ms. Allocated memory is still 119.5MB. Free memory was 81.8MB in the beginning and 80.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:41:55,055 INFO L158 Benchmark]: RCFGBuilder took 761.19ms. Allocated memory is still 119.5MB. Free memory was 80.2MB in the beginning and 55.4MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-10-17 17:41:55,056 INFO L158 Benchmark]: TraceAbstraction took 3212.10ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 54.7MB in the beginning and 92.9MB in the end (delta: -38.2MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2022-10-17 17:41:55,056 INFO L158 Benchmark]: Witness Printer took 83.05ms. Allocated memory is still 153.1MB. Free memory was 92.9MB in the beginning and 88.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 17:41:55,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.31ms. Allocated memory is still 119.5MB. Free memory was 79.2MB in the beginning and 84.0MB in the end (delta: -4.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.19ms. Allocated memory is still 119.5MB. Free memory was 84.0MB in the beginning and 81.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.69ms. Allocated memory is still 119.5MB. Free memory was 81.8MB in the beginning and 80.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 761.19ms. Allocated memory is still 119.5MB. Free memory was 80.2MB in the beginning and 55.4MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3212.10ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 54.7MB in the beginning and 92.9MB in the end (delta: -38.2MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * Witness Printer took 83.05ms. Allocated memory is still 153.1MB. Free memory was 92.9MB in the beginning and 88.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 401]: 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, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 198 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 672 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 455 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 268 IncrementalHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 301 mSDtfsCounter, 268 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=213occurred in iteration=5, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 25 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 32 LocationsWithAnnotation, 298 PreInvPairs, 342 NumberOfFragments, 265 HoareAnnotationTreeSize, 298 FomulaSimplifications, 93 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 32 FomulaSimplificationsInter, 1455 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 322 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 18/18 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: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 879]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 887]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) - InvariantResult [Line: 401]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 783]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 279]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 856]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 292]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 856]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && tmp == systemActive) && !(0 == systemActive) - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 224]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && !(0 == systemActive)) - InvariantResult [Line: 773]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-10-17 17:41:55,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10c3966a-150f-46ab-8ffe-3c83a297ac66/bin/utaipan-G1rejxKTta/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