./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V --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 0d9ebbb30768a2034911923a47ec23b508893488073d6c966da0671a59e428a3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:06:11,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:06:11,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:06:11,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:06:11,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:06:11,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:06:11,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:06:11,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:06:11,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:06:11,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:06:11,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:06:11,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:06:11,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:06:11,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:06:11,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:06:11,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:06:11,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:06:11,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:06:11,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:06:11,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:06:11,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:06:11,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:06:11,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:06:11,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:06:11,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:06:11,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:06:11,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:06:11,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:06:11,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:06:11,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:06:11,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:06:11,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:06:11,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:06:11,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:06:11,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:06:11,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:06:11,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:06:11,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:06:11,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:06:11,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:06:11,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:06:11,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:06:11,847 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:06:11,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:06:11,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:06:11,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:06:11,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:06:11,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:06:11,849 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:06:11,849 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:06:11,849 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:06:11,849 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:06:11,849 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:06:11,850 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:06:11,850 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:06:11,850 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:06:11,850 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:06:11,850 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:06:11,851 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:06:11,851 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:06:11,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:06:11,852 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:06:11,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:06:11,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:06:11,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:06:11,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:06:11,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:06:11,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:06:11,853 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:06:11,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:06:11,854 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:06:11,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:06:11,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:06:11,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:06:11,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:06:11,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:06:11,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:06:11,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:06:11,855 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:06:11,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:06:11,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:06:11,856 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:06:11,856 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:06:11,856 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d9ebbb30768a2034911923a47ec23b508893488073d6c966da0671a59e428a3 [2021-11-23 03:06:12,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:06:12,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:06:12,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:06:12,159 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:06:12,159 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:06:12,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c [2021-11-23 03:06:12,260 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/data/8f7ba244e/0c4bb9743349407b8b5f5d351f0ab450/FLAG07623155e [2021-11-23 03:06:12,802 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:06:12,803 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c [2021-11-23 03:06:12,817 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/data/8f7ba244e/0c4bb9743349407b8b5f5d351f0ab450/FLAG07623155e [2021-11-23 03:06:13,089 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/data/8f7ba244e/0c4bb9743349407b8b5f5d351f0ab450 [2021-11-23 03:06:13,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:06:13,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:06:13,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:06:13,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:06:13,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:06:13,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:06:13" (1/1) ... [2021-11-23 03:06:13,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@737c4362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:13, skipping insertion in model container [2021-11-23 03:06:13,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:06:13" (1/1) ... [2021-11-23 03:06:13,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:06:13,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:06:13,460 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c[16435,16448] [2021-11-23 03:06:13,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:06:13,482 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:06:13,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c[16435,16448] [2021-11-23 03:06:13,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:06:13,623 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:06:13,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:13 WrapperNode [2021-11-23 03:06:13,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:06:13,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:06:13,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:06:13,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:06:13,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:13" (1/1) ... [2021-11-23 03:06:13,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:13" (1/1) ... [2021-11-23 03:06:13,712 INFO L137 Inliner]: procedures = 53, calls = 150, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 216 [2021-11-23 03:06:13,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:06:13,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:06:13,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:06:13,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:06:13,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:13" (1/1) ... [2021-11-23 03:06:13,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:13" (1/1) ... [2021-11-23 03:06:13,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:13" (1/1) ... [2021-11-23 03:06:13,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:13" (1/1) ... [2021-11-23 03:06:13,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:13" (1/1) ... [2021-11-23 03:06:13,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:13" (1/1) ... [2021-11-23 03:06:13,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:13" (1/1) ... [2021-11-23 03:06:13,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:06:13,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:06:13,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:06:13,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:06:13,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:13" (1/1) ... [2021-11-23 03:06:13,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:06:13,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:06:13,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:06:13,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:06:13,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:06:13,865 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 03:06:13,865 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 03:06:13,865 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 03:06:13,865 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 03:06:13,865 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 03:06:13,866 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 03:06:13,866 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-23 03:06:13,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-23 03:06:13,866 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 03:06:13,866 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 03:06:13,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:06:13,867 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 03:06:13,867 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 03:06:13,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:06:13,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:06:13,940 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:06:13,942 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:06:14,298 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:06:14,433 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:06:14,433 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 03:06:14,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:06:14 BoogieIcfgContainer [2021-11-23 03:06:14,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:06:14,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:06:14,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:06:14,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:06:14,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:06:13" (1/3) ... [2021-11-23 03:06:14,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fddfbd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:06:14, skipping insertion in model container [2021-11-23 03:06:14,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:13" (2/3) ... [2021-11-23 03:06:14,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fddfbd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:06:14, skipping insertion in model container [2021-11-23 03:06:14,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:06:14" (3/3) ... [2021-11-23 03:06:14,447 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product18.cil.c [2021-11-23 03:06:14,453 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:06:14,454 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:06:14,530 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:06:14,543 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:06:14,543 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:06:14,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 37 states have internal predecessors, (44), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-23 03:06:14,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 03:06:14,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:06:14,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:06:14,602 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:06:14,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:06:14,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1384210539, now seen corresponding path program 1 times [2021-11-23 03:06:14,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:06:14,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348720466] [2021-11-23 03:06:14,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:14,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:06:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:14,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:14,821 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:06:14,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348720466] [2021-11-23 03:06:14,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348720466] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:06:14,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:06:14,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:06:14,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070573190] [2021-11-23 03:06:14,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:06:14,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:06:14,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:06:14,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:06:14,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:06:14,861 INFO L87 Difference]: Start difference. First operand has 48 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 37 states have internal predecessors, (44), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:06:14,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:06:14,930 INFO L93 Difference]: Finished difference Result 94 states and 125 transitions. [2021-11-23 03:06:14,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:06:14,933 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 16 [2021-11-23 03:06:14,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:06:14,944 INFO L225 Difference]: With dead ends: 94 [2021-11-23 03:06:14,944 INFO L226 Difference]: Without dead ends: 43 [2021-11-23 03:06:14,948 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:06:14,952 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:06:14,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:06:14,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-23 03:06:14,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-23 03:06:14,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 33 states have internal predecessors, (36), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:06:14,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2021-11-23 03:06:15,000 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 16 [2021-11-23 03:06:15,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:06:15,001 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2021-11-23 03:06:15,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:06:15,002 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2021-11-23 03:06:15,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 03:06:15,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:06:15,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:06:15,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:06:15,005 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:06:15,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:06:15,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1783946348, now seen corresponding path program 1 times [2021-11-23 03:06:15,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:06:15,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759258821] [2021-11-23 03:06:15,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:15,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:06:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:15,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:15,129 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:06:15,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759258821] [2021-11-23 03:06:15,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759258821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:06:15,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:06:15,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:06:15,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642737974] [2021-11-23 03:06:15,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:06:15,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:06:15,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:06:15,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:06:15,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:06:15,140 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-11-23 03:06:15,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:06:15,212 INFO L93 Difference]: Finished difference Result 63 states and 77 transitions. [2021-11-23 03:06:15,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:06:15,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 [2021-11-23 03:06:15,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:06:15,216 INFO L225 Difference]: With dead ends: 63 [2021-11-23 03:06:15,217 INFO L226 Difference]: Without dead ends: 35 [2021-11-23 03:06:15,219 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:06:15,221 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 7 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:06:15,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 51 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:06:15,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-23 03:06:15,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-23 03:06:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 28 states have internal predecessors, (30), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-23 03:06:15,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2021-11-23 03:06:15,238 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 17 [2021-11-23 03:06:15,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:06:15,240 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-11-23 03:06:15,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-11-23 03:06:15,241 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2021-11-23 03:06:15,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 03:06:15,244 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:06:15,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:06:15,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:06:15,246 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:06:15,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:06:15,248 INFO L85 PathProgramCache]: Analyzing trace with hash -100596037, now seen corresponding path program 1 times [2021-11-23 03:06:15,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:06:15,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588059549] [2021-11-23 03:06:15,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:15,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:06:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:15,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:15,437 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:06:15,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588059549] [2021-11-23 03:06:15,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588059549] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:06:15,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:06:15,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 03:06:15,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069063756] [2021-11-23 03:06:15,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:06:15,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:06:15,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:06:15,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:06:15,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:06:15,442 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:06:15,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:06:15,631 INFO L93 Difference]: Finished difference Result 99 states and 122 transitions. [2021-11-23 03:06:15,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:06:15,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 19 [2021-11-23 03:06:15,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:06:15,640 INFO L225 Difference]: With dead ends: 99 [2021-11-23 03:06:15,640 INFO L226 Difference]: Without dead ends: 66 [2021-11-23 03:06:15,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:06:15,647 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 24 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:06:15,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 150 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:06:15,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-23 03:06:15,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2021-11-23 03:06:15,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 49 states have internal predecessors, (53), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-23 03:06:15,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 75 transitions. [2021-11-23 03:06:15,685 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 75 transitions. Word has length 19 [2021-11-23 03:06:15,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:06:15,685 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 75 transitions. [2021-11-23 03:06:15,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:06:15,686 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 75 transitions. [2021-11-23 03:06:15,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 03:06:15,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:06:15,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:06:15,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:06:15,688 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:06:15,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:06:15,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1472217328, now seen corresponding path program 1 times [2021-11-23 03:06:15,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:06:15,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587924162] [2021-11-23 03:06:15,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:15,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:06:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:15,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:15,898 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:06:15,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587924162] [2021-11-23 03:06:15,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587924162] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:06:15,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:06:15,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 03:06:15,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233232619] [2021-11-23 03:06:15,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:06:15,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 03:06:15,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:06:15,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 03:06:15,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-23 03:06:15,903 INFO L87 Difference]: Start difference. First operand 62 states and 75 transitions. Second operand has 11 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:06:16,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:06:16,350 INFO L93 Difference]: Finished difference Result 154 states and 190 transitions. [2021-11-23 03:06:16,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 03:06:16,351 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2021-11-23 03:06:16,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:06:16,358 INFO L225 Difference]: With dead ends: 154 [2021-11-23 03:06:16,358 INFO L226 Difference]: Without dead ends: 94 [2021-11-23 03:06:16,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2021-11-23 03:06:16,371 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 153 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:06:16,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 129 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:06:16,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-23 03:06:16,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 65. [2021-11-23 03:06:16,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 51 states have internal predecessors, (52), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-23 03:06:16,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2021-11-23 03:06:16,396 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 22 [2021-11-23 03:06:16,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:06:16,396 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-11-23 03:06:16,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:06:16,397 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2021-11-23 03:06:16,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 03:06:16,403 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:06:16,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:06:16,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:06:16,404 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:06:16,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:06:16,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1904918853, now seen corresponding path program 1 times [2021-11-23 03:06:16,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:06:16,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136467739] [2021-11-23 03:06:16,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:16,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:06:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:16,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:16,511 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:06:16,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136467739] [2021-11-23 03:06:16,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136467739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:06:16,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:06:16,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:06:16,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478250085] [2021-11-23 03:06:16,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:06:16,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:06:16,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:06:16,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:06:16,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:06:16,521 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:06:16,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:06:16,555 INFO L93 Difference]: Finished difference Result 124 states and 144 transitions. [2021-11-23 03:06:16,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:06:16,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2021-11-23 03:06:16,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:06:16,559 INFO L225 Difference]: With dead ends: 124 [2021-11-23 03:06:16,560 INFO L226 Difference]: Without dead ends: 61 [2021-11-23 03:06:16,561 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:06:16,572 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:06:16,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 25 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:06:16,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-23 03:06:16,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-11-23 03:06:16,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 40 states have (on average 1.15) internal successors, (46), 45 states have internal predecessors, (46), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-23 03:06:16,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2021-11-23 03:06:16,585 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 25 [2021-11-23 03:06:16,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:06:16,585 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2021-11-23 03:06:16,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:06:16,586 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2021-11-23 03:06:16,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 03:06:16,590 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:06:16,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:06:16,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:06:16,590 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:06:16,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:06:16,592 INFO L85 PathProgramCache]: Analyzing trace with hash 597762836, now seen corresponding path program 1 times [2021-11-23 03:06:16,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:06:16,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779239854] [2021-11-23 03:06:16,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:16,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:06:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:16,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:16,719 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:06:16,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779239854] [2021-11-23 03:06:16,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779239854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:06:16,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:06:16,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:06:16,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113627948] [2021-11-23 03:06:16,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:06:16,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:06:16,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:06:16,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:06:16,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:06:16,722 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 03:06:16,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:06:16,761 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2021-11-23 03:06:16,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:06:16,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2021-11-23 03:06:16,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:06:16,763 INFO L225 Difference]: With dead ends: 63 [2021-11-23 03:06:16,763 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 03:06:16,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:06:16,767 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 18 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 45 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 [2021-11-23 03:06:16,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 45 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:06:16,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 03:06:16,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 03:06:16,772 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) [2021-11-23 03:06:16,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 03:06:16,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2021-11-23 03:06:16,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:06:16,773 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 03:06:16,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 03:06:16,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 03:06:16,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 03:06:16,776 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 03:06:16,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:06:16,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 03:06:17,372 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 251 257) no Hoare annotation was computed. [2021-11-23 03:06:17,372 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 251 257) the Hoare annotation is: true [2021-11-23 03:06:17,372 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 853 864) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) .cse0 (not (= 1 ~systemActive~0)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (or (not (= |old(~methaneLevelCritical~0)| ~systemActive~0)) .cse0 (= ~methaneLevelCritical~0 1) (not (= |old(~methaneLevelCritical~0)| 1))))) [2021-11-23 03:06:17,373 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 853 864) no Hoare annotation was computed. [2021-11-23 03:06:17,373 INFO L858 garLoopResultBuilder]: For program point L238-1(lines 238 244) no Hoare annotation was computed. [2021-11-23 03:06:17,373 INFO L854 garLoopResultBuilder]: At program point L267(lines 267 275) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (not (= ~systemActive~0 1))) (or .cse0 (not (= ~methaneLevelCritical~0 1)) (not (= ~methaneLevelCritical~0 ~systemActive~0))))) [2021-11-23 03:06:17,373 INFO L854 garLoopResultBuilder]: At program point L263(lines 263 280) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 (not (= 1 ~systemActive~0)) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (not (= ~methaneLevelCritical~0 1))))) [2021-11-23 03:06:17,373 INFO L858 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2021-11-23 03:06:17,374 INFO L854 garLoopResultBuilder]: At program point L61(lines 61 74) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (not (= 1 ~systemActive~0)) (and .cse1 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0)) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (not (= ~methaneLevelCritical~0 1))))) [2021-11-23 03:06:17,374 INFO L854 garLoopResultBuilder]: At program point L61-1(lines 53 77) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (not (= 1 ~systemActive~0)) (and .cse1 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0)) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (not (= ~methaneLevelCritical~0 1))))) [2021-11-23 03:06:17,374 INFO L854 garLoopResultBuilder]: At program point L821(line 821) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (not (= ~systemActive~0 1))) (or .cse0 (not (= ~methaneLevelCritical~0 1)) (not (= ~methaneLevelCritical~0 ~systemActive~0))))) [2021-11-23 03:06:17,374 INFO L858 garLoopResultBuilder]: For program point L231-1(lines 230 249) no Hoare annotation was computed. [2021-11-23 03:06:17,374 INFO L854 garLoopResultBuilder]: At program point L273(line 273) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (not (= ~systemActive~0 1))) (or .cse0 (not (= ~methaneLevelCritical~0 1)) (not (= ~methaneLevelCritical~0 ~systemActive~0))))) [2021-11-23 03:06:17,375 INFO L854 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 (not (= 1 ~systemActive~0)) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (not (= ~methaneLevelCritical~0 1))))) [2021-11-23 03:06:17,375 INFO L858 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2021-11-23 03:06:17,375 INFO L854 garLoopResultBuilder]: At program point L278(line 278) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 (not (= 1 ~systemActive~0)) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (not (= ~methaneLevelCritical~0 1))))) [2021-11-23 03:06:17,375 INFO L854 garLoopResultBuilder]: At program point L278-1(lines 259 283) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 (not (= 1 ~systemActive~0)) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (not (= ~methaneLevelCritical~0 1))))) [2021-11-23 03:06:17,375 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 227 250) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 (not (= 1 ~systemActive~0)) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (not (= ~methaneLevelCritical~0 1))))) [2021-11-23 03:06:17,375 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 227 250) no Hoare annotation was computed. [2021-11-23 03:06:17,376 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 821) no Hoare annotation was computed. [2021-11-23 03:06:17,376 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 119 148) no Hoare annotation was computed. [2021-11-23 03:06:17,376 INFO L861 garLoopResultBuilder]: At program point L129-2(lines 129 143) the Hoare annotation is: true [2021-11-23 03:06:17,385 INFO L861 garLoopResultBuilder]: At program point L125(line 125) the Hoare annotation is: true [2021-11-23 03:06:17,386 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 119 148) the Hoare annotation is: true [2021-11-23 03:06:17,386 INFO L858 garLoopResultBuilder]: For program point L125-1(line 125) no Hoare annotation was computed. [2021-11-23 03:06:17,386 INFO L861 garLoopResultBuilder]: At program point L144(lines 119 148) the Hoare annotation is: true [2021-11-23 03:06:17,386 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-11-23 03:06:17,387 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 137) no Hoare annotation was computed. [2021-11-23 03:06:17,387 INFO L861 garLoopResultBuilder]: At program point L133-1(lines 133 137) the Hoare annotation is: true [2021-11-23 03:06:17,387 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 865 873) the Hoare annotation is: true [2021-11-23 03:06:17,387 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 865 873) no Hoare annotation was computed. [2021-11-23 03:06:17,387 INFO L854 garLoopResultBuilder]: At program point L432-2(lines 424 437) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 ~systemActive~0) .cse0 (= ~methaneLevelCritical~0 1) .cse1) (and .cse0 (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) .cse1))) [2021-11-23 03:06:17,388 INFO L858 garLoopResultBuilder]: For program point L395(lines 394 441) no Hoare annotation was computed. [2021-11-23 03:06:17,388 INFO L854 garLoopResultBuilder]: At program point L416(line 416) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 ~systemActive~0) .cse0 (= ~methaneLevelCritical~0 1) .cse1) (and .cse0 (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) .cse1))) [2021-11-23 03:06:17,388 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 03:06:17,390 INFO L861 garLoopResultBuilder]: At program point L445(lines 384 449) the Hoare annotation is: true [2021-11-23 03:06:17,390 INFO L858 garLoopResultBuilder]: For program point L404(lines 404 410) no Hoare annotation was computed. [2021-11-23 03:06:17,390 INFO L858 garLoopResultBuilder]: For program point L404-1(lines 404 410) no Hoare annotation was computed. [2021-11-23 03:06:17,391 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 03:06:17,391 INFO L854 garLoopResultBuilder]: At program point L442(lines 393 443) the Hoare annotation is: false [2021-11-23 03:06:17,391 INFO L858 garLoopResultBuilder]: For program point L414(lines 414 420) no Hoare annotation was computed. [2021-11-23 03:06:17,391 INFO L854 garLoopResultBuilder]: At program point L414-1(lines 414 420) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 ~systemActive~0) .cse0 (= ~methaneLevelCritical~0 1) .cse1) (and .cse0 (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) .cse1))) [2021-11-23 03:06:17,391 INFO L854 garLoopResultBuilder]: At program point L439(lines 394 441) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 ~systemActive~0) .cse0 (= ~methaneLevelCritical~0 1) .cse1) (and .cse0 (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) .cse1))) [2021-11-23 03:06:17,392 INFO L854 garLoopResultBuilder]: At program point L406(line 406) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 ~systemActive~0) .cse0 (= ~methaneLevelCritical~0 1) .cse1) (and .cse0 (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) .cse1))) [2021-11-23 03:06:17,392 INFO L854 garLoopResultBuilder]: At program point L204(lines 204 211) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2021-11-23 03:06:17,392 INFO L861 garLoopResultBuilder]: At program point L204-2(lines 204 211) the Hoare annotation is: true [2021-11-23 03:06:17,392 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 841 852) no Hoare annotation was computed. [2021-11-23 03:06:17,393 INFO L861 garLoopResultBuilder]: At program point waterRiseENTRY(lines 841 852) the Hoare annotation is: true [2021-11-23 03:06:17,401 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-23 03:06:17,403 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:06:17,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:06:17 BoogieIcfgContainer [2021-11-23 03:06:17,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:06:17,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:06:17,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:06:17,439 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:06:17,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:06:14" (3/4) ... [2021-11-23 03:06:17,443 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 03:06:17,450 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-23 03:06:17,450 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 03:06:17,450 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 03:06:17,450 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 03:06:17,450 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-11-23 03:06:17,451 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 03:06:17,461 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 69 nodes and edges [2021-11-23 03:06:17,462 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-23 03:06:17,463 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 03:06:17,464 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 03:06:17,464 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 03:06:17,465 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 03:06:17,466 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 03:06:17,503 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) [2021-11-23 03:06:17,504 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) [2021-11-23 03:06:17,504 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) [2021-11-23 03:06:17,505 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && tmp == 0)) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) [2021-11-23 03:06:17,505 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && tmp == 0)) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) [2021-11-23 03:06:17,506 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || !(methaneLevelCritical == systemActive)) [2021-11-23 03:06:17,507 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || !(methaneLevelCritical == systemActive)) [2021-11-23 03:06:17,536 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:06:17,536 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:06:17,537 INFO L158 Benchmark]: Toolchain (without parser) took 4443.99ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 56.3MB in the beginning and 73.0MB in the end (delta: -16.7MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-11-23 03:06:17,538 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 61.5MB in the beginning and 61.5MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:06:17,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.26ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 56.1MB in the beginning and 93.1MB in the end (delta: -37.0MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2021-11-23 03:06:17,539 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.22ms. Allocated memory is still 125.8MB. Free memory was 93.1MB in the beginning and 90.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:06:17,539 INFO L158 Benchmark]: Boogie Preprocessor took 51.54ms. Allocated memory is still 125.8MB. Free memory was 90.7MB in the beginning and 89.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:06:17,540 INFO L158 Benchmark]: RCFGBuilder took 667.31ms. Allocated memory is still 125.8MB. Free memory was 89.3MB in the beginning and 70.5MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 03:06:17,540 INFO L158 Benchmark]: TraceAbstraction took 3000.03ms. Allocated memory is still 125.8MB. Free memory was 70.1MB in the beginning and 78.3MB in the end (delta: -8.2MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2021-11-23 03:06:17,540 INFO L158 Benchmark]: Witness Printer took 97.38ms. Allocated memory is still 125.8MB. Free memory was 78.3MB in the beginning and 73.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 03:06:17,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 61.5MB in the beginning and 61.5MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.26ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 56.1MB in the beginning and 93.1MB in the end (delta: -37.0MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.22ms. Allocated memory is still 125.8MB. Free memory was 93.1MB in the beginning and 90.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.54ms. Allocated memory is still 125.8MB. Free memory was 90.7MB in the beginning and 89.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 667.31ms. Allocated memory is still 125.8MB. Free memory was 89.3MB in the beginning and 70.5MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3000.03ms. Allocated memory is still 125.8MB. Free memory was 70.1MB in the beginning and 78.3MB in the end (delta: -8.2MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * Witness Printer took 97.38ms. Allocated memory is still 125.8MB. Free memory was 78.3MB in the beginning and 73.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 821]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 236 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 226 mSDsluCounter, 444 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 321 mSDsCounter, 85 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 457 IncrementalHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 85 mSolverCounterUnsat, 195 mSDtfsCounter, 457 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=4, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 33 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 29 LocationsWithAnnotation, 180 PreInvPairs, 202 NumberOfFragments, 510 HoareAnnotationTreeSize, 180 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 29 FomulaSimplificationsInter, 365 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 295 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 821]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || !(methaneLevelCritical == systemActive)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) - InvariantResult [Line: 384]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 227]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) - InvariantResult [Line: 414]: Loop Invariant Derived loop invariant: (((methaneLevelCritical == systemActive && pumpRunning == 0) && methaneLevelCritical == 1) && splverifierCounter == 0) || (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 394]: Loop Invariant Derived loop invariant: (((methaneLevelCritical == systemActive && pumpRunning == 0) && methaneLevelCritical == 1) && splverifierCounter == 0) || (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 267]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || !(methaneLevelCritical == systemActive)) - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && tmp == 0)) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) - InvariantResult [Line: 204]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 393]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 263]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) - InvariantResult [Line: 204]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && tmp == 0)) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) RESULT: Ultimate proved your program to be correct! [2021-11-23 03:06:17,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963f58e1-cd3f-4c41-90cd-95717636ee8e/bin/utaipan-EQgc7hIp5V/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