./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0 --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 4ef00a1384831ff7ef4c918e957ad9d5bbb60c08f91b05efbf00076fbc049000 --- 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-e04fb08 [2022-11-16 20:27:51,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:27:51,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:27:51,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:27:51,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:27:51,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:27:51,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:27:51,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:27:51,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:27:51,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:27:51,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:27:51,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:27:51,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:27:51,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:27:51,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:27:51,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:27:51,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:27:51,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:27:51,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:27:51,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:27:51,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:27:51,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:27:51,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:27:51,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:27:51,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:27:51,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:27:51,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:27:51,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:27:51,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:27:51,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:27:51,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:27:51,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:27:51,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:27:51,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:27:51,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:27:51,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:27:51,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:27:51,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:27:51,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:27:51,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:27:51,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:27:51,790 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 20:27:51,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:27:51,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:27:51,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:27:51,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:27:51,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:27:51,831 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:27:51,831 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:27:51,832 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:27:51,832 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:27:51,832 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:27:51,833 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:27:51,834 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:27:51,834 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:27:51,834 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:27:51,834 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:27:51,835 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:27:51,835 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:27:51,835 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:27:51,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:27:51,836 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 20:27:51,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:27:51,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 20:27:51,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:27:51,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:27:51,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:27:51,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:27:51,840 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 20:27:51,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:27:51,840 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:27:51,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:27:51,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:27:51,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:27:51,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:27:51,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:27:51,842 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:27:51,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:27:51,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:27:51,843 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:27:51,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:27:51,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:27:51,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:27:51,844 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_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef00a1384831ff7ef4c918e957ad9d5bbb60c08f91b05efbf00076fbc049000 [2022-11-16 20:27:52,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:27:52,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:27:52,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:27:52,201 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:27:52,203 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:27:52,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c [2022-11-16 20:27:52,264 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/data/e5e1cda99/eec9737357c84a35a64b213c75347d34/FLAG97fdb0dd1 [2022-11-16 20:27:52,879 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:27:52,879 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c [2022-11-16 20:27:52,895 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/data/e5e1cda99/eec9737357c84a35a64b213c75347d34/FLAG97fdb0dd1 [2022-11-16 20:27:53,166 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/data/e5e1cda99/eec9737357c84a35a64b213c75347d34 [2022-11-16 20:27:53,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:27:53,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:27:53,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:27:53,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:27:53,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:27:53,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:27:53" (1/1) ... [2022-11-16 20:27:53,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ebd2e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:53, skipping insertion in model container [2022-11-16 20:27:53,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:27:53" (1/1) ... [2022-11-16 20:27:53,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:27:53,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:27:53,752 WARN L229 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_493d5c56-5699-4589-8ee6-4c26157539b6/sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c[17451,17464] [2022-11-16 20:27:53,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:27:53,794 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:27:53,882 WARN L229 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_493d5c56-5699-4589-8ee6-4c26157539b6/sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c[17451,17464] [2022-11-16 20:27:53,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:27:53,904 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:27:53,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:53 WrapperNode [2022-11-16 20:27:53,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:27:53,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:27:53,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:27:53,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:27:53,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:53" (1/1) ... [2022-11-16 20:27:53,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:53" (1/1) ... [2022-11-16 20:27:53,980 INFO L138 Inliner]: procedures = 56, calls = 157, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 247 [2022-11-16 20:27:53,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:27:53,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:27:53,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:27:53,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:27:53,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:53" (1/1) ... [2022-11-16 20:27:53,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:53" (1/1) ... [2022-11-16 20:27:54,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:53" (1/1) ... [2022-11-16 20:27:54,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:53" (1/1) ... [2022-11-16 20:27:54,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:53" (1/1) ... [2022-11-16 20:27:54,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:53" (1/1) ... [2022-11-16 20:27:54,046 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:53" (1/1) ... [2022-11-16 20:27:54,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:53" (1/1) ... [2022-11-16 20:27:54,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:27:54,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:27:54,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:27:54,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:27:54,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:53" (1/1) ... [2022-11-16 20:27:54,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:27:54,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:27:54,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:27:54,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:27:54,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:27:54,138 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-16 20:27:54,138 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-16 20:27:54,138 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-16 20:27:54,138 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-16 20:27:54,138 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-16 20:27:54,139 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-16 20:27:54,139 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-16 20:27:54,139 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-16 20:27:54,139 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-16 20:27:54,139 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-16 20:27:54,139 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-16 20:27:54,139 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-16 20:27:54,140 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-16 20:27:54,140 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-16 20:27:54,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:27:54,140 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-16 20:27:54,140 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-16 20:27:54,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:27:54,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:27:54,226 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:27:54,228 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:27:54,586 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:27:54,675 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:27:54,675 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 20:27:54,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:27:54 BoogieIcfgContainer [2022-11-16 20:27:54,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:27:54,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:27:54,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:27:54,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:27:54,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:27:53" (1/3) ... [2022-11-16 20:27:54,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13830b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:27:54, skipping insertion in model container [2022-11-16 20:27:54,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:53" (2/3) ... [2022-11-16 20:27:54,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13830b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:27:54, skipping insertion in model container [2022-11-16 20:27:54,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:27:54" (3/3) ... [2022-11-16 20:27:54,688 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product24.cil.c [2022-11-16 20:27:54,709 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:27:54,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 20:27:54,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:27:54,794 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;@3ed61854, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:27:54,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 20:27:54,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-16 20:27:54,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 20:27:54,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:27:54,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:27:54,814 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:27:54,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:27:54,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1416272187, now seen corresponding path program 1 times [2022-11-16 20:27:54,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:27:54,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652684838] [2022-11-16 20:27:54,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:27:54,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:27:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:27:55,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:27:55,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:27:55,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652684838] [2022-11-16 20:27:55,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652684838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:27:55,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:27:55,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:27:55,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011559813] [2022-11-16 20:27:55,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:27:55,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 20:27:55,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:27:55,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 20:27:55,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 20:27:55,212 INFO L87 Difference]: Start difference. First operand has 67 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) 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) [2022-11-16 20:27:55,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:27:55,346 INFO L93 Difference]: Finished difference Result 132 states and 183 transitions. [2022-11-16 20:27:55,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 20:27:55,349 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 [2022-11-16 20:27:55,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:27:55,359 INFO L225 Difference]: With dead ends: 132 [2022-11-16 20:27:55,359 INFO L226 Difference]: Without dead ends: 62 [2022-11-16 20:27:55,363 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 [2022-11-16 20:27:55,366 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:27:55,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:27:55,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-16 20:27:55,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-16 20:27:55,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-16 20:27:55,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2022-11-16 20:27:55,416 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 17 [2022-11-16 20:27:55,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:27:55,417 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2022-11-16 20:27:55,417 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) [2022-11-16 20:27:55,418 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2022-11-16 20:27:55,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 20:27:55,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:27:55,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:27:55,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:27:55,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:27:55,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:27:55,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1747014774, now seen corresponding path program 1 times [2022-11-16 20:27:55,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:27:55,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209643365] [2022-11-16 20:27:55,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:27:55,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:27:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:27:55,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:27:55,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:27:55,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209643365] [2022-11-16 20:27:55,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209643365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:27:55,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:27:55,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:27:55,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629041430] [2022-11-16 20:27:55,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:27:55,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:27:55,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:27:55,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:27:55,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:27:55,554 INFO L87 Difference]: Start difference. First operand 62 states and 82 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) [2022-11-16 20:27:55,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:27:55,606 INFO L93 Difference]: Finished difference Result 96 states and 126 transitions. [2022-11-16 20:27:55,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:27:55,606 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 [2022-11-16 20:27:55,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:27:55,608 INFO L225 Difference]: With dead ends: 96 [2022-11-16 20:27:55,608 INFO L226 Difference]: Without dead ends: 54 [2022-11-16 20:27:55,609 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 [2022-11-16 20:27:55,610 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 14 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:27:55,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 98 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:27:55,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-16 20:27:55,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-16 20:27:55,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-16 20:27:55,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions. [2022-11-16 20:27:55,622 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 71 transitions. Word has length 18 [2022-11-16 20:27:55,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:27:55,623 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 71 transitions. [2022-11-16 20:27:55,623 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) [2022-11-16 20:27:55,623 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions. [2022-11-16 20:27:55,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 20:27:55,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:27:55,625 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] [2022-11-16 20:27:55,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 20:27:55,625 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:27:55,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:27:55,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1325333782, now seen corresponding path program 1 times [2022-11-16 20:27:55,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:27:55,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021837983] [2022-11-16 20:27:55,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:27:55,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:27:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:27:55,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:27:55,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:27:55,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021837983] [2022-11-16 20:27:55,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021837983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:27:55,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:27:55,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 20:27:55,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848856377] [2022-11-16 20:27:55,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:27:55,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 20:27:55,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:27:55,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 20:27:55,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 20:27:55,876 INFO L87 Difference]: Start difference. First operand 54 states and 71 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) [2022-11-16 20:27:56,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:27:56,002 INFO L93 Difference]: Finished difference Result 140 states and 184 transitions. [2022-11-16 20:27:56,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 20:27:56,006 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 [2022-11-16 20:27:56,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:27:56,008 INFO L225 Difference]: With dead ends: 140 [2022-11-16 20:27:56,010 INFO L226 Difference]: Without dead ends: 88 [2022-11-16 20:27:56,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 20:27:56,015 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 94 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:27:56,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 147 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:27:56,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-16 20:27:56,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2022-11-16 20:27:56,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 66 states have internal predecessors, (76), 17 states have call successors, (17), 12 states have call predecessors, (17), 12 states have return successors, (18), 12 states have call predecessors, (18), 17 states have call successors, (18) [2022-11-16 20:27:56,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 111 transitions. [2022-11-16 20:27:56,053 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 111 transitions. Word has length 21 [2022-11-16 20:27:56,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:27:56,054 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 111 transitions. [2022-11-16 20:27:56,054 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) [2022-11-16 20:27:56,054 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 111 transitions. [2022-11-16 20:27:56,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 20:27:56,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:27:56,061 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] [2022-11-16 20:27:56,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 20:27:56,062 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:27:56,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:27:56,067 INFO L85 PathProgramCache]: Analyzing trace with hash -174029589, now seen corresponding path program 1 times [2022-11-16 20:27:56,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:27:56,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19207561] [2022-11-16 20:27:56,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:27:56,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:27:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:27:56,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:27:56,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:27:56,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19207561] [2022-11-16 20:27:56,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19207561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:27:56,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:27:56,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 20:27:56,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277822859] [2022-11-16 20:27:56,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:27:56,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 20:27:56,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:27:56,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 20:27:56,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 20:27:56,312 INFO L87 Difference]: Start difference. First operand 85 states and 111 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) [2022-11-16 20:27:56,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:27:56,568 INFO L93 Difference]: Finished difference Result 247 states and 328 transitions. [2022-11-16 20:27:56,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 20:27:56,569 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 [2022-11-16 20:27:56,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:27:56,579 INFO L225 Difference]: With dead ends: 247 [2022-11-16 20:27:56,579 INFO L226 Difference]: Without dead ends: 164 [2022-11-16 20:27:56,583 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 [2022-11-16 20:27:56,587 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 47 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 20:27:56,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 295 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 20:27:56,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-16 20:27:56,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 156. [2022-11-16 20:27:56,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 101 states have (on average 1.3564356435643565) internal successors, (137), 120 states have internal predecessors, (137), 32 states have call successors, (32), 22 states have call predecessors, (32), 22 states have return successors, (34), 22 states have call predecessors, (34), 32 states have call successors, (34) [2022-11-16 20:27:56,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 203 transitions. [2022-11-16 20:27:56,628 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 203 transitions. Word has length 24 [2022-11-16 20:27:56,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:27:56,629 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 203 transitions. [2022-11-16 20:27:56,629 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) [2022-11-16 20:27:56,630 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 203 transitions. [2022-11-16 20:27:56,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-16 20:27:56,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:27:56,639 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] [2022-11-16 20:27:56,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 20:27:56,640 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:27:56,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:27:56,641 INFO L85 PathProgramCache]: Analyzing trace with hash 2078653995, now seen corresponding path program 1 times [2022-11-16 20:27:56,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:27:56,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205492047] [2022-11-16 20:27:56,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:27:56,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:27:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:27:56,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:27:56,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:27:56,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205492047] [2022-11-16 20:27:56,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205492047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:27:56,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:27:56,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:27:56,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260131902] [2022-11-16 20:27:56,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:27:56,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:27:56,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:27:56,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:27:56,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:27:56,775 INFO L87 Difference]: Start difference. First operand 156 states and 203 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) [2022-11-16 20:27:56,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:27:56,849 INFO L93 Difference]: Finished difference Result 239 states and 318 transitions. [2022-11-16 20:27:56,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:27:56,855 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 [2022-11-16 20:27:56,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:27:56,862 INFO L225 Difference]: With dead ends: 239 [2022-11-16 20:27:56,864 INFO L226 Difference]: Without dead ends: 237 [2022-11-16 20:27:56,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:27:56,866 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 46 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:27:56,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 122 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:27:56,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-11-16 20:27:56,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2022-11-16 20:27:56,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 153 states have (on average 1.3594771241830066) internal successors, (208), 182 states have internal predecessors, (208), 49 states have call successors, (49), 34 states have call predecessors, (49), 34 states have return successors, (58), 34 states have call predecessors, (58), 49 states have call successors, (58) [2022-11-16 20:27:56,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 315 transitions. [2022-11-16 20:27:56,928 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 315 transitions. Word has length 27 [2022-11-16 20:27:56,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:27:56,931 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 315 transitions. [2022-11-16 20:27:56,932 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) [2022-11-16 20:27:56,932 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 315 transitions. [2022-11-16 20:27:56,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-16 20:27:56,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:27:56,934 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:27:56,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 20:27:56,935 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:27:56,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:27:56,936 INFO L85 PathProgramCache]: Analyzing trace with hash -2017965807, now seen corresponding path program 1 times [2022-11-16 20:27:56,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:27:56,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550088944] [2022-11-16 20:27:56,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:27:56,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:27:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:27:57,184 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 20:27:57,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:27:57,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550088944] [2022-11-16 20:27:57,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550088944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:27:57,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:27:57,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 20:27:57,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124064976] [2022-11-16 20:27:57,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:27:57,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 20:27:57,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:27:57,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 20:27:57,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 20:27:57,188 INFO L87 Difference]: Start difference. First operand 237 states and 315 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2022-11-16 20:27:57,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:27:57,356 INFO L93 Difference]: Finished difference Result 363 states and 483 transitions. [2022-11-16 20:27:57,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 20:27:57,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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 48 [2022-11-16 20:27:57,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:27:57,360 INFO L225 Difference]: With dead ends: 363 [2022-11-16 20:27:57,360 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 20:27:57,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-16 20:27:57,364 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 41 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:27:57,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 51 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:27:57,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 20:27:57,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 20:27:57,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:27:57,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 20:27:57,370 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2022-11-16 20:27:57,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:27:57,370 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 20:27:57,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2022-11-16 20:27:57,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 20:27:57,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 20:27:57,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 20:27:57,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 20:27:57,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 20:27:58,261 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 156 163) the Hoare annotation is: true [2022-11-16 20:27:58,261 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 156 163) no Hoare annotation was computed. [2022-11-16 20:27:58,261 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 89 95) no Hoare annotation was computed. [2022-11-16 20:27:58,261 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 89 95) the Hoare annotation is: true [2022-11-16 20:27:58,261 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 913 924) the Hoare annotation is: true [2022-11-16 20:27:58,261 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 913 924) no Hoare annotation was computed. [2022-11-16 20:27:58,262 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 740 769) no Hoare annotation was computed. [2022-11-16 20:27:58,262 INFO L902 garLoopResultBuilder]: At program point L765(lines 740 769) the Hoare annotation is: true [2022-11-16 20:27:58,262 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 740 769) the Hoare annotation is: true [2022-11-16 20:27:58,262 INFO L899 garLoopResultBuilder]: For program point L761(line 761) no Hoare annotation was computed. [2022-11-16 20:27:58,262 INFO L899 garLoopResultBuilder]: For program point L754(lines 754 758) no Hoare annotation was computed. [2022-11-16 20:27:58,262 INFO L902 garLoopResultBuilder]: At program point L754-1(lines 754 758) the Hoare annotation is: true [2022-11-16 20:27:58,262 INFO L902 garLoopResultBuilder]: At program point L750-2(lines 750 764) the Hoare annotation is: true [2022-11-16 20:27:58,262 INFO L902 garLoopResultBuilder]: At program point L746(line 746) the Hoare annotation is: true [2022-11-16 20:27:58,263 INFO L899 garLoopResultBuilder]: For program point L746-1(line 746) no Hoare annotation was computed. [2022-11-16 20:27:58,263 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 925 933) the Hoare annotation is: true [2022-11-16 20:27:58,263 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 925 933) no Hoare annotation was computed. [2022-11-16 20:27:58,263 INFO L895 garLoopResultBuilder]: At program point L853(line 853) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-16 20:27:58,263 INFO L899 garLoopResultBuilder]: For program point L853-1(line 853) no Hoare annotation was computed. [2022-11-16 20:27:58,263 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 68 87) no Hoare annotation was computed. [2022-11-16 20:27:58,264 INFO L899 garLoopResultBuilder]: For program point L131(lines 131 139) no Hoare annotation was computed. [2022-11-16 20:27:58,264 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 144) no Hoare annotation was computed. [2022-11-16 20:27:58,264 INFO L895 garLoopResultBuilder]: At program point L169(line 169) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-16 20:27:58,264 INFO L895 garLoopResultBuilder]: At program point L169-1(line 169) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-16 20:27:58,264 INFO L899 garLoopResultBuilder]: For program point L859(lines 859 869) no Hoare annotation was computed. [2022-11-16 20:27:58,264 INFO L895 garLoopResultBuilder]: At program point L855(lines 855 872) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~8#1| 0) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2022-11-16 20:27:58,265 INFO L895 garLoopResultBuilder]: At program point L855-1(lines 847 875) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~8#1| 0) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2022-11-16 20:27:58,265 INFO L895 garLoopResultBuilder]: At program point L137(line 137) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-16 20:27:58,265 INFO L895 garLoopResultBuilder]: At program point L133(line 133) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-16 20:27:58,265 INFO L899 garLoopResultBuilder]: For program point L860(lines 860 866) no Hoare annotation was computed. [2022-11-16 20:27:58,265 INFO L895 garLoopResultBuilder]: At program point L881(line 881) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-16 20:27:58,265 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 65 88) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-16 20:27:58,266 INFO L895 garLoopResultBuilder]: At program point L142(line 142) 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)))) [2022-11-16 20:27:58,266 INFO L895 garLoopResultBuilder]: At program point L142-1(lines 123 147) 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)))) [2022-11-16 20:27:58,266 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 76 82) no Hoare annotation was computed. [2022-11-16 20:27:58,266 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 65 88) no Hoare annotation was computed. [2022-11-16 20:27:58,266 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 881) no Hoare annotation was computed. [2022-11-16 20:27:58,266 INFO L902 garLoopResultBuilder]: At program point L329(lines 266 333) the Hoare annotation is: true [2022-11-16 20:27:58,266 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 302) no Hoare annotation was computed. [2022-11-16 20:27:58,267 INFO L899 garLoopResultBuilder]: For program point L296-1(lines 296 302) no Hoare annotation was computed. [2022-11-16 20:27:58,267 INFO L895 garLoopResultBuilder]: At program point L288(line 288) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~7#1| 1) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 20:27:58,267 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-16 20:27:58,267 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 249) no Hoare annotation was computed. [2022-11-16 20:27:58,267 INFO L895 garLoopResultBuilder]: At program point L243-1(lines 243 249) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~7#1| 1) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 20:27:58,267 INFO L895 garLoopResultBuilder]: At program point L326(lines 275 327) the Hoare annotation is: false [2022-11-16 20:27:58,267 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 20:27:58,267 INFO L899 garLoopResultBuilder]: For program point L314(lines 314 320) no Hoare annotation was computed. [2022-11-16 20:27:58,268 INFO L895 garLoopResultBuilder]: At program point L314-2(lines 306 321) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~7#1| 1) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 20:27:58,268 INFO L899 garLoopResultBuilder]: For program point L277(lines 276 325) no Hoare annotation was computed. [2022-11-16 20:27:58,268 INFO L895 garLoopResultBuilder]: At program point L306(lines 306 321) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~7#1| 1) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 20:27:58,268 INFO L895 garLoopResultBuilder]: At program point L298(line 298) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~7#1| 1) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 20:27:58,268 INFO L895 garLoopResultBuilder]: At program point L323(lines 276 325) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~7#1| 1) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 20:27:58,268 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 292) no Hoare annotation was computed. [2022-11-16 20:27:58,268 INFO L899 garLoopResultBuilder]: For program point L286-1(lines 286 292) no Hoare annotation was computed. [2022-11-16 20:27:58,269 INFO L895 garLoopResultBuilder]: At program point L823(lines 823 830) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~7#1| 1) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0))) [2022-11-16 20:27:58,269 INFO L895 garLoopResultBuilder]: At program point L245(line 245) the Hoare annotation is: false [2022-11-16 20:27:58,269 INFO L902 garLoopResultBuilder]: At program point L823-2(lines 823 830) the Hoare annotation is: true [2022-11-16 20:27:58,269 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 901 912) no Hoare annotation was computed. [2022-11-16 20:27:58,269 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 901 912) the Hoare annotation is: true [2022-11-16 20:27:58,269 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 97 121) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2022-11-16 20:27:58,269 INFO L895 garLoopResultBuilder]: At program point L116(line 116) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2022-11-16 20:27:58,270 INFO L899 garLoopResultBuilder]: For program point L116-1(lines 97 121) no Hoare annotation was computed. [2022-11-16 20:27:58,270 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 97 121) no Hoare annotation was computed. [2022-11-16 20:27:58,270 INFO L895 garLoopResultBuilder]: At program point L111(line 111) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2022-11-16 20:27:58,270 INFO L895 garLoopResultBuilder]: At program point L107(line 107) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2022-11-16 20:27:58,270 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 113) no Hoare annotation was computed. [2022-11-16 20:27:58,270 INFO L895 garLoopResultBuilder]: At program point L101(lines 101 118) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2022-11-16 20:27:58,274 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-16 20:27:58,277 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 20:27:58,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:27:58 BoogieIcfgContainer [2022-11-16 20:27:58,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 20:27:58,294 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 20:27:58,294 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 20:27:58,294 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 20:27:58,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:27:54" (3/4) ... [2022-11-16 20:27:58,297 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 20:27:58,303 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-16 20:27:58,303 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-16 20:27:58,303 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-16 20:27:58,303 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-16 20:27:58,303 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-16 20:27:58,304 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-16 20:27:58,304 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-16 20:27:58,304 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-11-16 20:27:58,311 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 72 nodes and edges [2022-11-16 20:27:58,311 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-16 20:27:58,312 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-16 20:27:58,313 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 20:27:58,313 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 20:27:58,313 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 20:27:58,314 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 20:27:58,339 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-11-16 20:27:58,340 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && !(0 == systemActive)) [2022-11-16 20:27:58,340 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0) [2022-11-16 20:27:58,341 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || tmp == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) [2022-11-16 20:27:58,341 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) [2022-11-16 20:27:58,341 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || tmp == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) [2022-11-16 20:27:58,342 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) [2022-11-16 20:27:58,381 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 20:27:58,381 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 20:27:58,382 INFO L158 Benchmark]: Toolchain (without parser) took 5211.92ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 72.7MB in the beginning and 100.5MB in the end (delta: -27.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:27:58,382 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:27:58,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 721.01ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 83.3MB in the end (delta: -10.9MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2022-11-16 20:27:58,383 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.33ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 80.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:27:58,383 INFO L158 Benchmark]: Boogie Preprocessor took 69.04ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:27:58,383 INFO L158 Benchmark]: RCFGBuilder took 627.85ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 51.5MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 20:27:58,384 INFO L158 Benchmark]: TraceAbstraction took 3612.64ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 50.7MB in the beginning and 105.8MB in the end (delta: -55.0MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2022-11-16 20:27:58,384 INFO L158 Benchmark]: Witness Printer took 87.77ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 100.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 20:27:58,389 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 721.01ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 83.3MB in the end (delta: -10.9MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.33ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 80.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.04ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 627.85ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 51.5MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3612.64ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 50.7MB in the beginning and 105.8MB in the end (delta: -55.0MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. * Witness Printer took 87.77ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 100.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 881]: 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 9 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 254 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 242 mSDsluCounter, 784 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 430 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 282 IncrementalHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 354 mSDtfsCounter, 282 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=237occurred in iteration=5, InterpolantAutomatonStates: 26, 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, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 386 PreInvPairs, 434 NumberOfFragments, 362 HoareAnnotationTreeSize, 386 FomulaSimplifications, 45 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 38 FomulaSimplificationsInter, 1650 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 19/19 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: 266]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 823]: Loop Invariant Derived loop invariant: (((tmp == 1 && pumpRunning == 0) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && !(0 == systemActive) - InvariantResult [Line: 276]: Loop Invariant Derived loop invariant: ((tmp == 1 && pumpRunning == 0) && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 881]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) - InvariantResult [Line: 750]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 855]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || tmp == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) - InvariantResult [Line: 847]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || tmp == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) - InvariantResult [Line: 243]: Loop Invariant Derived loop invariant: ((tmp == 1 && pumpRunning == 0) && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 740]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && !(0 == systemActive)) - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: ((tmp == 1 && pumpRunning == 0) && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 823]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 169]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) RESULT: Ultimate proved your program to be correct! [2022-11-16 20:27:58,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493d5c56-5699-4589-8ee6-4c26157539b6/bin/utaipan-Xvt2sAort0/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