./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product38.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_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/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_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/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_296d733a-1af7-4f4a-a010-57f8e4665cb3/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 68c6d60a43782147acd714b0904a144255717c2aa47fb6b6f8991672a1483369 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:43:42,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:43:42,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:43:42,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:43:42,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:43:42,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:43:42,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:43:42,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:43:42,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:43:42,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:43:42,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:43:42,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:43:42,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:43:42,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:43:42,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:43:42,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:43:42,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:43:42,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:43:42,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:43:42,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:43:42,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:43:42,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:43:42,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:43:42,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:43:42,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:43:42,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:43:42,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:43:42,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:43:42,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:43:42,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:43:42,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:43:42,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:43:42,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:43:42,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:43:42,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:43:42,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:43:42,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:43:42,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:43:42,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:43:42,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:43:42,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:43:42,685 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:43:42,739 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:43:42,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:43:42,740 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:43:42,740 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:43:42,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:43:42,741 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:43:42,742 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:43:42,742 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:43:42,742 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:43:42,742 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:43:42,743 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:43:42,743 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:43:42,743 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:43:42,743 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:43:42,744 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:43:42,744 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:43:42,744 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:43:42,744 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:43:42,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:43:42,745 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:43:42,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:43:42,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:43:42,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:43:42,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:43:42,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:43:42,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:43:42,747 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:43:42,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:43:42,747 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:43:42,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:43:42,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:43:42,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:43:42,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:43:42,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:43:42,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:43:42,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:43:42,749 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:43:42,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:43:42,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:43:42,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:43:42,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:43:42,750 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_296d733a-1af7-4f4a-a010-57f8e4665cb3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68c6d60a43782147acd714b0904a144255717c2aa47fb6b6f8991672a1483369 [2021-11-23 02:43:43,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:43:43,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:43:43,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:43:43,124 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:43:43,125 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:43:43,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c [2021-11-23 02:43:43,211 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/data/b5473d9d3/980692acd9514d03951cb24385c06c1d/FLAGba907057b [2021-11-23 02:43:43,818 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:43:43,819 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c [2021-11-23 02:43:43,841 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/data/b5473d9d3/980692acd9514d03951cb24385c06c1d/FLAGba907057b [2021-11-23 02:43:44,122 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/data/b5473d9d3/980692acd9514d03951cb24385c06c1d [2021-11-23 02:43:44,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:43:44,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:43:44,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:43:44,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:43:44,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:43:44,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:43:44" (1/1) ... [2021-11-23 02:43:44,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13cd5da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:44, skipping insertion in model container [2021-11-23 02:43:44,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:43:44" (1/1) ... [2021-11-23 02:43:44,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:43:44,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:43:44,407 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_296d733a-1af7-4f4a-a010-57f8e4665cb3/sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c[1605,1618] [2021-11-23 02:43:44,528 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:43:44,538 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:43:44,552 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_296d733a-1af7-4f4a-a010-57f8e4665cb3/sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c[1605,1618] [2021-11-23 02:43:44,640 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:43:44,667 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:43:44,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:44 WrapperNode [2021-11-23 02:43:44,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:43:44,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:43:44,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:43:44,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:43:44,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:44" (1/1) ... [2021-11-23 02:43:44,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:44" (1/1) ... [2021-11-23 02:43:44,719 INFO L137 Inliner]: procedures = 56, calls = 157, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 259 [2021-11-23 02:43:44,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:43:44,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:43:44,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:43:44,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:43:44,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:44" (1/1) ... [2021-11-23 02:43:44,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:44" (1/1) ... [2021-11-23 02:43:44,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:44" (1/1) ... [2021-11-23 02:43:44,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:44" (1/1) ... [2021-11-23 02:43:44,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:44" (1/1) ... [2021-11-23 02:43:44,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:44" (1/1) ... [2021-11-23 02:43:44,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:44" (1/1) ... [2021-11-23 02:43:44,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:43:44,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:43:44,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:43:44,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:43:44,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:44" (1/1) ... [2021-11-23 02:43:44,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:43:44,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:43:44,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:43:44,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:43:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:43:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 02:43:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 02:43:44,887 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 02:43:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 02:43:44,887 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 02:43:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 02:43:44,888 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:43:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:43:44,888 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 02:43:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 02:43:44,888 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-11-23 02:43:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-11-23 02:43:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:43:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 02:43:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 02:43:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:43:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:43:44,960 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:43:44,962 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:43:45,390 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:43:45,466 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:43:45,467 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 02:43:45,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:43:45 BoogieIcfgContainer [2021-11-23 02:43:45,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:43:45,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:43:45,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:43:45,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:43:45,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:43:44" (1/3) ... [2021-11-23 02:43:45,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fbdd3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:43:45, skipping insertion in model container [2021-11-23 02:43:45,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:44" (2/3) ... [2021-11-23 02:43:45,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fbdd3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:43:45, skipping insertion in model container [2021-11-23 02:43:45,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:43:45" (3/3) ... [2021-11-23 02:43:45,479 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2021-11-23 02:43:45,485 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:43:45,485 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:43:45,535 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:43:45,542 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 02:43:45,542 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:43:45,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 45 states have internal predecessors, (53), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-23 02:43:45,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 02:43:45,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:45,567 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:45,568 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:45,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:45,573 INFO L85 PathProgramCache]: Analyzing trace with hash 840991641, now seen corresponding path program 1 times [2021-11-23 02:43:45,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:45,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918776540] [2021-11-23 02:43:45,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:45,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:45,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:43:45,780 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:45,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918776540] [2021-11-23 02:43:45,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918776540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:45,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:45,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:43:45,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028824565] [2021-11-23 02:43:45,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:45,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:43:45,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:45,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:43:45,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:43:45,817 INFO L87 Difference]: Start difference. First operand has 58 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 45 states have internal predecessors, (53), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:43:45,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:45,887 INFO L93 Difference]: Finished difference Result 114 states and 155 transitions. [2021-11-23 02:43:45,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:43:45,890 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2021-11-23 02:43:45,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:45,906 INFO L225 Difference]: With dead ends: 114 [2021-11-23 02:43:45,906 INFO L226 Difference]: Without dead ends: 53 [2021-11-23 02:43:45,911 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 02:43:45,916 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:45,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:43:45,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-23 02:43:45,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-23 02:43:46,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 41 states have internal predecessors, (45), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-23 02:43:46,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2021-11-23 02:43:46,003 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 21 [2021-11-23 02:43:46,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:46,004 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2021-11-23 02:43:46,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:43:46,004 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2021-11-23 02:43:46,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 02:43:46,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:46,007 INFO L514 BasicCegarLoop]: trace histogram [2, 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 02:43:46,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:43:46,008 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:46,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:46,009 INFO L85 PathProgramCache]: Analyzing trace with hash -24351572, now seen corresponding path program 1 times [2021-11-23 02:43:46,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:46,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337118121] [2021-11-23 02:43:46,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:46,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:46,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:43:46,208 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:46,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337118121] [2021-11-23 02:43:46,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337118121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:46,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:46,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:43:46,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055356672] [2021-11-23 02:43:46,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:46,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:43:46,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:46,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:43:46,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:43:46,215 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:43:46,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:46,490 INFO L93 Difference]: Finished difference Result 150 states and 214 transitions. [2021-11-23 02:43:46,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:43:46,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2021-11-23 02:43:46,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:46,494 INFO L225 Difference]: With dead ends: 150 [2021-11-23 02:43:46,494 INFO L226 Difference]: Without dead ends: 99 [2021-11-23 02:43:46,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 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 02:43:46,497 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 43 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:46,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 324 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:43:46,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-23 02:43:46,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95. [2021-11-23 02:43:46,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 62 states have (on average 1.2580645161290323) internal successors, (78), 69 states have internal predecessors, (78), 20 states have call successors, (20), 14 states have call predecessors, (20), 12 states have return successors, (26), 18 states have call predecessors, (26), 18 states have call successors, (26) [2021-11-23 02:43:46,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 124 transitions. [2021-11-23 02:43:46,520 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 124 transitions. Word has length 24 [2021-11-23 02:43:46,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:46,521 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 124 transitions. [2021-11-23 02:43:46,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:43:46,521 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 124 transitions. [2021-11-23 02:43:46,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 02:43:46,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:46,524 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:46,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:43:46,524 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:46,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:46,525 INFO L85 PathProgramCache]: Analyzing trace with hash -849782081, now seen corresponding path program 1 times [2021-11-23 02:43:46,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:46,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239457613] [2021-11-23 02:43:46,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:46,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:46,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:43:46,739 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:46,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239457613] [2021-11-23 02:43:46,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239457613] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:46,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:46,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:43:46,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072315542] [2021-11-23 02:43:46,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:46,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:43:46,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:46,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:43:46,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:43:46,744 INFO L87 Difference]: Start difference. First operand 95 states and 124 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:43:47,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:47,065 INFO L93 Difference]: Finished difference Result 283 states and 375 transitions. [2021-11-23 02:43:47,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:43:47,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2021-11-23 02:43:47,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:47,078 INFO L225 Difference]: With dead ends: 283 [2021-11-23 02:43:47,079 INFO L226 Difference]: Without dead ends: 182 [2021-11-23 02:43:47,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:43:47,092 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 129 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:47,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 268 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:43:47,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-11-23 02:43:47,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 176. [2021-11-23 02:43:47,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 114 states have (on average 1.236842105263158) internal successors, (141), 125 states have internal predecessors, (141), 37 states have call successors, (37), 27 states have call predecessors, (37), 24 states have return successors, (53), 32 states have call predecessors, (53), 34 states have call successors, (53) [2021-11-23 02:43:47,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 231 transitions. [2021-11-23 02:43:47,192 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 231 transitions. Word has length 32 [2021-11-23 02:43:47,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:47,192 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 231 transitions. [2021-11-23 02:43:47,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:43:47,193 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 231 transitions. [2021-11-23 02:43:47,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 02:43:47,195 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:47,196 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:47,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:43:47,196 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:47,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:47,197 INFO L85 PathProgramCache]: Analyzing trace with hash -567989994, now seen corresponding path program 1 times [2021-11-23 02:43:47,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:47,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263269931] [2021-11-23 02:43:47,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:47,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:47,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:43:47,454 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:47,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263269931] [2021-11-23 02:43:47,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263269931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:47,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:47,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 02:43:47,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102827979] [2021-11-23 02:43:47,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:47,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:43:47,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:47,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:43:47,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:43:47,460 INFO L87 Difference]: Start difference. First operand 176 states and 231 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 02:43:48,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:48,004 INFO L93 Difference]: Finished difference Result 462 states and 675 transitions. [2021-11-23 02:43:48,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 02:43:48,004 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 35 [2021-11-23 02:43:48,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:48,009 INFO L225 Difference]: With dead ends: 462 [2021-11-23 02:43:48,009 INFO L226 Difference]: Without dead ends: 336 [2021-11-23 02:43:48,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-11-23 02:43:48,012 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 276 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:48,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 266 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 02:43:48,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2021-11-23 02:43:48,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 268. [2021-11-23 02:43:48,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 178 states have (on average 1.247191011235955) internal successors, (222), 194 states have internal predecessors, (222), 54 states have call successors, (54), 35 states have call predecessors, (54), 35 states have return successors, (80), 51 states have call predecessors, (80), 49 states have call successors, (80) [2021-11-23 02:43:48,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 356 transitions. [2021-11-23 02:43:48,089 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 356 transitions. Word has length 35 [2021-11-23 02:43:48,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:48,090 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 356 transitions. [2021-11-23 02:43:48,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 02:43:48,090 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 356 transitions. [2021-11-23 02:43:48,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 02:43:48,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:48,094 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:48,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:43:48,094 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:48,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:48,095 INFO L85 PathProgramCache]: Analyzing trace with hash 314010276, now seen corresponding path program 1 times [2021-11-23 02:43:48,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:48,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339453794] [2021-11-23 02:43:48,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:48,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:48,156 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 02:43:48,157 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:48,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339453794] [2021-11-23 02:43:48,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339453794] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:48,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:48,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:43:48,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282439352] [2021-11-23 02:43:48,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:48,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:43:48,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:48,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:43:48,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:48,159 INFO L87 Difference]: Start difference. First operand 268 states and 356 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-23 02:43:48,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:48,199 INFO L93 Difference]: Finished difference Result 398 states and 515 transitions. [2021-11-23 02:43:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:43:48,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 50 [2021-11-23 02:43:48,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:48,202 INFO L225 Difference]: With dead ends: 398 [2021-11-23 02:43:48,202 INFO L226 Difference]: Without dead ends: 228 [2021-11-23 02:43:48,203 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 02:43:48,204 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 2 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:48,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 77 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:43:48,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-23 02:43:48,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2021-11-23 02:43:48,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 153 states have (on average 1.2549019607843137) internal successors, (192), 169 states have internal predecessors, (192), 39 states have call successors, (39), 30 states have call predecessors, (39), 35 states have return successors, (54), 41 states have call predecessors, (54), 39 states have call successors, (54) [2021-11-23 02:43:48,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 285 transitions. [2021-11-23 02:43:48,244 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 285 transitions. Word has length 50 [2021-11-23 02:43:48,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:48,244 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 285 transitions. [2021-11-23 02:43:48,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-23 02:43:48,245 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 285 transitions. [2021-11-23 02:43:48,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 02:43:48,247 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:48,247 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:48,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:43:48,248 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:48,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:48,248 INFO L85 PathProgramCache]: Analyzing trace with hash -647334797, now seen corresponding path program 1 times [2021-11-23 02:43:48,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:48,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800021132] [2021-11-23 02:43:48,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:48,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:48,376 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:43:48,377 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:48,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800021132] [2021-11-23 02:43:48,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800021132] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:48,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:48,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:43:48,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426877275] [2021-11-23 02:43:48,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:48,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:43:48,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:48,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:43:48,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:43:48,379 INFO L87 Difference]: Start difference. First operand 228 states and 285 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-23 02:43:48,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:48,441 INFO L93 Difference]: Finished difference Result 454 states and 574 transitions. [2021-11-23 02:43:48,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:43:48,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 52 [2021-11-23 02:43:48,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:48,444 INFO L225 Difference]: With dead ends: 454 [2021-11-23 02:43:48,444 INFO L226 Difference]: Without dead ends: 228 [2021-11-23 02:43:48,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 02:43:48,448 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 43 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:48,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 70 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:43:48,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-23 02:43:48,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2021-11-23 02:43:48,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 153 states have (on average 1.2222222222222223) internal successors, (187), 169 states have internal predecessors, (187), 39 states have call successors, (39), 30 states have call predecessors, (39), 35 states have return successors, (54), 41 states have call predecessors, (54), 39 states have call successors, (54) [2021-11-23 02:43:48,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 280 transitions. [2021-11-23 02:43:48,492 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 280 transitions. Word has length 52 [2021-11-23 02:43:48,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:48,493 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 280 transitions. [2021-11-23 02:43:48,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-23 02:43:48,493 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 280 transitions. [2021-11-23 02:43:48,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-23 02:43:48,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:48,496 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:48,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:43:48,496 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:48,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:48,497 INFO L85 PathProgramCache]: Analyzing trace with hash 175287174, now seen corresponding path program 1 times [2021-11-23 02:43:48,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:48,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646269006] [2021-11-23 02:43:48,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:48,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:48,560 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:43:48,561 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:48,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646269006] [2021-11-23 02:43:48,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646269006] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:43:48,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265530706] [2021-11-23 02:43:48,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:48,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:43:48,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:43:48,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:43:48,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:43:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:48,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 02:43:48,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:43:48,854 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:43:48,854 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:43:48,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265530706] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:48,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:43:48,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-11-23 02:43:48,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7990416] [2021-11-23 02:43:48,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:48,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:43:48,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:48,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:43:48,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:43:48,857 INFO L87 Difference]: Start difference. First operand 228 states and 280 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-23 02:43:48,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:48,918 INFO L93 Difference]: Finished difference Result 338 states and 420 transitions. [2021-11-23 02:43:48,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:43:48,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 60 [2021-11-23 02:43:48,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:48,921 INFO L225 Difference]: With dead ends: 338 [2021-11-23 02:43:48,921 INFO L226 Difference]: Without dead ends: 218 [2021-11-23 02:43:48,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:43:48,923 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 26 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:48,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 97 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:43:48,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-23 02:43:48,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2021-11-23 02:43:48,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 146 states have (on average 1.1917808219178083) internal successors, (174), 161 states have internal predecessors, (174), 37 states have call successors, (37), 30 states have call predecessors, (37), 34 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2021-11-23 02:43:48,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 255 transitions. [2021-11-23 02:43:48,949 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 255 transitions. Word has length 60 [2021-11-23 02:43:48,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:48,949 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 255 transitions. [2021-11-23 02:43:48,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-23 02:43:48,950 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 255 transitions. [2021-11-23 02:43:48,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 02:43:48,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:48,951 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:48,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:43:49,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:43:49,179 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:49,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:49,180 INFO L85 PathProgramCache]: Analyzing trace with hash -772429468, now seen corresponding path program 1 times [2021-11-23 02:43:49,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:49,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263442299] [2021-11-23 02:43:49,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:49,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:49,262 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:43:49,263 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:49,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263442299] [2021-11-23 02:43:49,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263442299] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:43:49,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961126502] [2021-11-23 02:43:49,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:49,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:43:49,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:43:49,264 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:43:49,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:43:49,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:49,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:43:49,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:43:49,574 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:43:49,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:43:49,801 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:43:49,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961126502] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:43:49,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1459495636] [2021-11-23 02:43:49,825 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-23 02:43:49,825 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:43:49,830 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:43:49,835 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:43:49,835 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:43:56,323 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 48 for LOIs [2021-11-23 02:43:56,335 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 29 for LOIs [2021-11-23 02:43:56,733 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 53 for LOIs [2021-11-23 02:43:56,750 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 65 for LOIs [2021-11-23 02:43:57,128 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 42 for LOIs [2021-11-23 02:43:57,134 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:44:02,056 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6153#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= ~methaneLevelCritical~0 0) (= |timeShift_getWaterLevel_~retValue_acc~5#1| |timeShift_getWaterLevel_#res#1|) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~5#1| ~waterLevel~0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~1#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~1#1| 2)) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483647) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= |timeShift_getWaterLevel_~retValue_acc~5#1| 2147483647) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2021-11-23 02:44:02,056 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:44:02,056 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:44:02,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 13 [2021-11-23 02:44:02,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898596114] [2021-11-23 02:44:02,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:44:02,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-23 02:44:02,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:44:02,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 02:44:02,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1606, Unknown=0, NotChecked=0, Total=1806 [2021-11-23 02:44:02,059 INFO L87 Difference]: Start difference. First operand 218 states and 255 transitions. Second operand has 13 states, 10 states have (on average 7.6) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) [2021-11-23 02:44:02,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:02,705 INFO L93 Difference]: Finished difference Result 306 states and 367 transitions. [2021-11-23 02:44:02,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-23 02:44:02,706 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 7.6) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) Word has length 63 [2021-11-23 02:44:02,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:02,712 INFO L225 Difference]: With dead ends: 306 [2021-11-23 02:44:02,713 INFO L226 Difference]: Without dead ends: 304 [2021-11-23 02:44:02,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 161 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1110 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=329, Invalid=2977, Unknown=0, NotChecked=0, Total=3306 [2021-11-23 02:44:02,716 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 148 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:02,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 692 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 02:44:02,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-23 02:44:02,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 262. [2021-11-23 02:44:02,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 173 states have (on average 1.1791907514450868) internal successors, (204), 193 states have internal predecessors, (204), 46 states have call successors, (46), 38 states have call predecessors, (46), 42 states have return successors, (57), 45 states have call predecessors, (57), 46 states have call successors, (57) [2021-11-23 02:44:02,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 307 transitions. [2021-11-23 02:44:02,745 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 307 transitions. Word has length 63 [2021-11-23 02:44:02,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:02,746 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 307 transitions. [2021-11-23 02:44:02,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 7.6) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) [2021-11-23 02:44:02,746 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 307 transitions. [2021-11-23 02:44:02,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 02:44:02,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:02,749 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:02,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:44:02,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:44:02,963 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:44:02,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:02,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1361599813, now seen corresponding path program 1 times [2021-11-23 02:44:02,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:44:02,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610668915] [2021-11-23 02:44:02,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:02,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:03,050 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-23 02:44:03,051 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:44:03,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610668915] [2021-11-23 02:44:03,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610668915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:03,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:03,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:44:03,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933668149] [2021-11-23 02:44:03,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:03,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:44:03,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:44:03,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:44:03,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:44:03,054 INFO L87 Difference]: Start difference. First operand 262 states and 307 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-23 02:44:03,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:03,236 INFO L93 Difference]: Finished difference Result 649 states and 765 transitions. [2021-11-23 02:44:03,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:44:03,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 80 [2021-11-23 02:44:03,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:03,241 INFO L225 Difference]: With dead ends: 649 [2021-11-23 02:44:03,241 INFO L226 Difference]: Without dead ends: 495 [2021-11-23 02:44:03,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:44:03,243 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 120 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:03,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 186 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:44:03,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-11-23 02:44:03,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 493. [2021-11-23 02:44:03,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 324 states have (on average 1.1728395061728396) internal successors, (380), 359 states have internal predecessors, (380), 88 states have call successors, (88), 74 states have call predecessors, (88), 80 states have return successors, (106), 85 states have call predecessors, (106), 88 states have call successors, (106) [2021-11-23 02:44:03,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 574 transitions. [2021-11-23 02:44:03,312 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 574 transitions. Word has length 80 [2021-11-23 02:44:03,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:03,312 INFO L470 AbstractCegarLoop]: Abstraction has 493 states and 574 transitions. [2021-11-23 02:44:03,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-23 02:44:03,313 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 574 transitions. [2021-11-23 02:44:03,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-23 02:44:03,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:03,317 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:03,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:44:03,318 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:44:03,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:03,319 INFO L85 PathProgramCache]: Analyzing trace with hash -289976213, now seen corresponding path program 1 times [2021-11-23 02:44:03,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:44:03,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496681053] [2021-11-23 02:44:03,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:03,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:03,436 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-23 02:44:03,437 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:44:03,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496681053] [2021-11-23 02:44:03,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496681053] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:44:03,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628012450] [2021-11-23 02:44:03,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:03,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:44:03,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:44:03,439 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:44:03,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:44:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:03,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 02:44:03,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:44:03,884 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 58 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 02:44:03,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:44:04,322 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-23 02:44:04,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628012450] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:44:04,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [410342722] [2021-11-23 02:44:04,326 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2021-11-23 02:44:04,326 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:44:04,327 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:44:04,327 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:44:04,327 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:44:13,982 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 52 for LOIs [2021-11-23 02:44:13,995 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 45 for LOIs [2021-11-23 02:44:14,672 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 23 for LOIs [2021-11-23 02:44:14,674 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 46 for LOIs [2021-11-23 02:44:14,719 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 31 for LOIs [2021-11-23 02:44:14,724 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:44:19,612 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9436#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (<= ~methaneLevelCritical~0 1) (<= 0 |old(~pumpRunning~0)|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= |timeShift_getWaterLevel_~retValue_acc~5#1| |timeShift_getWaterLevel_#res#1|) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (<= |old(~pumpRunning~0)| 2147483647) (<= |#NULL.offset| 0) (= |timeShift_getWaterLevel_~retValue_acc~5#1| ~waterLevel~0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~1#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~1#1| 2)) (<= 0 ~head~0.base) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= 0 ~methaneLevelCritical~0) (<= 0 ~pumpRunning~0) (<= ~head~0.base 0) (<= 0 |#NULL.offset|) (<= |timeShift_getWaterLevel_~retValue_acc~5#1| 2147483647) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2021-11-23 02:44:19,612 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:44:19,612 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:44:19,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2021-11-23 02:44:19,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506886794] [2021-11-23 02:44:19,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:44:19,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-23 02:44:19,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:44:19,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-23 02:44:19,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=2283, Unknown=0, NotChecked=0, Total=2550 [2021-11-23 02:44:19,615 INFO L87 Difference]: Start difference. First operand 493 states and 574 transitions. Second operand has 20 states, 20 states have (on average 5.1) internal successors, (102), 20 states have internal predecessors, (102), 7 states have call successors, (19), 5 states have call predecessors, (19), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2021-11-23 02:44:21,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:21,088 INFO L93 Difference]: Finished difference Result 1478 states and 1886 transitions. [2021-11-23 02:44:21,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-23 02:44:21,089 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.1) internal successors, (102), 20 states have internal predecessors, (102), 7 states have call successors, (19), 5 states have call predecessors, (19), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 83 [2021-11-23 02:44:21,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:21,096 INFO L225 Difference]: With dead ends: 1478 [2021-11-23 02:44:21,097 INFO L226 Difference]: Without dead ends: 975 [2021-11-23 02:44:21,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1895 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=639, Invalid=5367, Unknown=0, NotChecked=0, Total=6006 [2021-11-23 02:44:21,102 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 522 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:21,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [525 Valid, 440 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 02:44:21,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2021-11-23 02:44:21,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 608. [2021-11-23 02:44:21,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 402 states have (on average 1.1393034825870647) internal successors, (458), 440 states have internal predecessors, (458), 101 states have call successors, (101), 93 states have call predecessors, (101), 104 states have return successors, (125), 104 states have call predecessors, (125), 101 states have call successors, (125) [2021-11-23 02:44:21,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 684 transitions. [2021-11-23 02:44:21,166 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 684 transitions. Word has length 83 [2021-11-23 02:44:21,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:21,166 INFO L470 AbstractCegarLoop]: Abstraction has 608 states and 684 transitions. [2021-11-23 02:44:21,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.1) internal successors, (102), 20 states have internal predecessors, (102), 7 states have call successors, (19), 5 states have call predecessors, (19), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2021-11-23 02:44:21,167 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 684 transitions. [2021-11-23 02:44:21,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-23 02:44:21,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:21,169 INFO L514 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:21,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-23 02:44:21,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 02:44:21,395 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:44:21,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:21,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2120328455, now seen corresponding path program 1 times [2021-11-23 02:44:21,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:44:21,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982925970] [2021-11-23 02:44:21,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:21,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:21,759 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 25 proven. 29 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-23 02:44:21,759 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:44:21,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982925970] [2021-11-23 02:44:21,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982925970] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:44:21,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743435778] [2021-11-23 02:44:21,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:21,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:44:21,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:44:21,763 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:44:21,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:44:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:21,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 02:44:21,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:44:22,352 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 55 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:44:22,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:44:22,909 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-23 02:44:22,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743435778] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:44:22,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [360660213] [2021-11-23 02:44:22,912 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2021-11-23 02:44:22,913 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:44:22,913 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:44:22,913 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:44:22,913 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:44:33,121 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 312 for LOIs [2021-11-23 02:44:33,205 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 45 for LOIs [2021-11-23 02:44:33,897 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 23 for LOIs [2021-11-23 02:44:33,899 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 46 for LOIs [2021-11-23 02:44:33,941 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 31 for LOIs [2021-11-23 02:44:33,944 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:44:44,041 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13381#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (<= ~methaneLevelCritical~0 1) (<= 0 |old(~pumpRunning~0)|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= |timeShift_getWaterLevel_~retValue_acc~5#1| |timeShift_getWaterLevel_#res#1|) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (<= |old(~pumpRunning~0)| 2147483647) (<= |#NULL.offset| 0) (= |timeShift_getWaterLevel_~retValue_acc~5#1| ~waterLevel~0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~1#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~1#1| 2)) (<= 0 ~head~0.base) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= 0 ~methaneLevelCritical~0) (<= 0 ~pumpRunning~0) (<= ~head~0.base 0) (<= 0 |#NULL.offset|) (<= |timeShift_getWaterLevel_~retValue_acc~5#1| 2147483647) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2021-11-23 02:44:44,041 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:44:44,041 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:44:44,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 11] total 33 [2021-11-23 02:44:44,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225366290] [2021-11-23 02:44:44,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:44:44,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-23 02:44:44,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:44:44,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-23 02:44:44,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=3768, Unknown=0, NotChecked=0, Total=4160 [2021-11-23 02:44:44,045 INFO L87 Difference]: Start difference. First operand 608 states and 684 transitions. Second operand has 33 states, 33 states have (on average 4.181818181818182) internal successors, (138), 33 states have internal predecessors, (138), 16 states have call successors, (28), 8 states have call predecessors, (28), 11 states have return successors, (27), 17 states have call predecessors, (27), 15 states have call successors, (27) [2021-11-23 02:44:46,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:46,778 INFO L93 Difference]: Finished difference Result 1448 states and 1675 transitions. [2021-11-23 02:44:46,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-23 02:44:46,779 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.181818181818182) internal successors, (138), 33 states have internal predecessors, (138), 16 states have call successors, (28), 8 states have call predecessors, (28), 11 states have return successors, (27), 17 states have call predecessors, (27), 15 states have call successors, (27) Word has length 88 [2021-11-23 02:44:46,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:46,780 INFO L225 Difference]: With dead ends: 1448 [2021-11-23 02:44:46,780 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:44:46,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 241 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3865 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=1260, Invalid=10082, Unknown=0, NotChecked=0, Total=11342 [2021-11-23 02:44:46,789 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 1591 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 1115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1592 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 2823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1115 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:46,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1592 Valid, 724 Invalid, 2823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1115 Valid, 1708 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 02:44:46,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:44:46,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:44:46,790 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 02:44:46,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:44:46,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2021-11-23 02:44:46,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:46,791 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:44:46,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.181818181818182) internal successors, (138), 33 states have internal predecessors, (138), 16 states have call successors, (28), 8 states have call predecessors, (28), 11 states have return successors, (27), 17 states have call predecessors, (27), 15 states have call successors, (27) [2021-11-23 02:44:46,792 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:44:46,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:44:46,794 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:44:46,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:44:47,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:44:47,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:44:56,841 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 713 719) no Hoare annotation was computed. [2021-11-23 02:44:56,842 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 713 719) the Hoare annotation is: true [2021-11-23 02:44:56,842 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 612 623) the Hoare annotation is: (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0)) (.cse8 (= ~methaneLevelCritical~0 0))) (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse4 (not (< ~waterLevel~0 3))) (.cse2 (not .cse8)) (.cse9 (not (= 2 ~waterLevel~0))) (.cse7 (not .cse1)) (.cse5 (not (= ~pumpRunning~0 1))) (.cse3 (= 0 ~systemActive~0)) (.cse6 (not (<= 1 ~switchedOnBeforeTS~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse2 .cse5 .cse3 .cse6 .cse4) (or .cse7 .cse0 .cse8 .cse3 .cse4) (or .cse9 .cse1 .cse2 .cse5 .cse3) (or .cse7 .cse8 .cse9 .cse5 .cse3) (or .cse7 .cse8 .cse5 (not (<= ~waterLevel~0 1)) .cse3 .cse6)))) [2021-11-23 02:44:56,842 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 612 623) no Hoare annotation was computed. [2021-11-23 02:44:56,842 INFO L854 garLoopResultBuilder]: At program point L766(line 766) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (< |old(~waterLevel~0)| 3))) (.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 .cse3) (or .cse4 .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse3) (or .cse4 (not (= |old(~waterLevel~0)| 2)) .cse2))) [2021-11-23 02:44:56,843 INFO L854 garLoopResultBuilder]: At program point L766-1(lines 747 771) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse11 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse9 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse12 (or (= |timeShift_processEnvironment_~tmp~6#1| 0) (= |timeShift_processEnvironment_~tmp~6#1| ~methaneLevelCritical~0))) (.cse2 (= ~waterLevel~0 1)) (.cse14 (<= 1 ~switchedOnBeforeTS~0)) (.cse7 (= ~pumpRunning~0 1)) (.cse8 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (and .cse1 .cse11)) (.cse6 (= 0 ~systemActive~0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2)) (or .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse8 .cse3 .cse4 .cse6 .cse9 .cse7) (or .cse0 .cse10 .cse5 .cse6 (and .cse11 .cse7)) (let ((.cse13 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)))) (or .cse8 .cse4 (and .cse12 .cse1 (or .cse13 (and (<= |old(~waterLevel~0)| 0) .cse11)) .cse14) (and .cse12 (<= ~waterLevel~0 0) (or .cse13 .cse11) .cse14 .cse7) .cse6 .cse9)) (or .cse4 (and .cse12 .cse1 .cse2 .cse14) .cse5 (and .cse12 .cse2 .cse14 .cse7) .cse6) (or .cse8 .cse0 .cse10 .cse6)))) [2021-11-23 02:44:56,843 INFO L854 garLoopResultBuilder]: At program point L700-1(lines 700 706) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse11 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse9 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse12 (or (= |timeShift_processEnvironment_~tmp~6#1| 0) (= |timeShift_processEnvironment_~tmp~6#1| ~methaneLevelCritical~0))) (.cse2 (= ~waterLevel~0 1)) (.cse14 (<= 1 ~switchedOnBeforeTS~0)) (.cse7 (= ~pumpRunning~0 1)) (.cse8 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (and .cse1 .cse11)) (.cse6 (= 0 ~systemActive~0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2)) (or .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse8 .cse3 .cse4 .cse6 .cse9 .cse7) (or .cse0 .cse10 .cse5 .cse6 (and .cse11 .cse7)) (let ((.cse13 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)))) (or .cse8 .cse4 (and .cse12 .cse1 (or .cse13 (and (<= |old(~waterLevel~0)| 0) .cse11)) .cse14) (and .cse12 (<= ~waterLevel~0 0) (or .cse13 .cse11) .cse14 .cse7) .cse6 .cse9)) (or .cse4 (and .cse12 .cse1 .cse2 .cse14) .cse5 (and .cse12 .cse2 .cse14 .cse7) .cse6) (or .cse8 .cse0 .cse10 .cse6)))) [2021-11-23 02:44:56,844 INFO L854 garLoopResultBuilder]: At program point L181(line 181) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse7 (and .cse8 (= ~pumpRunning~0 1))) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse5 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (= ~methaneLevelCritical~0 0) .cse2 .cse3 .cse4 .cse5) (or .cse6 (not (= |old(~waterLevel~0)| 2)) .cse2 .cse7) (or .cse0 (and .cse1 .cse8) .cse2 .cse5) (or .cse6 .cse2 .cse7 .cse4 .cse5) (or .cse6 .cse2 .cse3 .cse4 .cse5)))) [2021-11-23 02:44:56,844 INFO L854 garLoopResultBuilder]: At program point L181-1(line 181) the Hoare annotation is: (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (and (<= 1 |timeShift___utac_acc__Specification5_spec__2_#t~ret5#1|) .cse5 (= ~pumpRunning~0 1)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 2)) .cse1 .cse2) (or .cse3 (not (= |old(~waterLevel~0)| 1)) (and .cse4 (= ~waterLevel~0 1))) (or .cse3 (and .cse4 .cse5) .cse1 (not (< |old(~waterLevel~0)| 3))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2)))) [2021-11-23 02:44:56,844 INFO L858 garLoopResultBuilder]: For program point L693-2(lines 689 711) no Hoare annotation was computed. [2021-11-23 02:44:56,844 INFO L854 garLoopResultBuilder]: At program point L755(lines 755 763) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (or (= |timeShift_processEnvironment_~tmp~6#1| 0) (= |timeShift_processEnvironment_~tmp~6#1| ~methaneLevelCritical~0))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (= 0 ~systemActive~0)) (.cse5 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 2)) (and .cse1 (= ~waterLevel~0 1) .cse2 .cse3) .cse4) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 .cse3) .cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse5 .cse4 (not (< |old(~waterLevel~0)| 3))) (or .cse5 (not (= |old(~waterLevel~0)| 1))))) [2021-11-23 02:44:56,845 INFO L854 garLoopResultBuilder]: At program point L751(lines 751 768) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~waterLevel~0 1)) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= 0 ~systemActive~0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse7 (= ~pumpRunning~0 1))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2)) (or .cse0 (and .cse1 .cse3) .cse4 (not (< |old(~waterLevel~0)| 3))) (or .cse5 (and .cse2 .cse6 .cse7) (not (= |old(~waterLevel~0)| 2)) .cse4) (or (not (<= |old(~waterLevel~0)| 1)) .cse5 .cse4 (and (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) .cse3) .cse6 .cse7) (not (<= 1 |old(~switchedOnBeforeTS~0)|))))) [2021-11-23 02:44:56,845 INFO L858 garLoopResultBuilder]: For program point L198(lines 198 208) no Hoare annotation was computed. [2021-11-23 02:44:56,845 INFO L858 garLoopResultBuilder]: For program point L194(lines 194 211) no Hoare annotation was computed. [2021-11-23 02:44:56,845 INFO L854 garLoopResultBuilder]: At program point L194-1(lines 186 214) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~waterLevel~0 1)) (.cse10 (not (= |old(~waterLevel~0)| 2))) (.cse6 (not (= |old(~waterLevel~0)| 1))) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse11 (<= |old(~waterLevel~0)| 0)) (.cse13 (or (= |timeShift_processEnvironment_~tmp~6#1| 0) (= |timeShift_processEnvironment_~tmp~6#1| ~methaneLevelCritical~0))) (.cse1 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~1#1| ~waterLevel~0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse14 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (= 0 ~systemActive~0)) (.cse12 (not (<= 1 |old(~switchedOnBeforeTS~0)|)))) (and (or .cse0 (and .cse1 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~1#1| 2) .cse2 .cse3) (and .cse4 .cse1 .cse2) .cse5 (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse6 (and .cse4 .cse7)) (or .cse8 .cse9 .cse10 .cse5 .cse3) (or .cse8 .cse9 .cse5 (not .cse11) .cse12 .cse3) (or (and .cse13 .cse4 .cse1 .cse7 .cse14) (and .cse13 .cse1 .cse7 .cse14 .cse3) .cse9 .cse10 .cse5) (or .cse6 .cse8 .cse9 .cse5 .cse12 .cse3) (let ((.cse15 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)))) (or (and .cse13 .cse4 (or .cse15 (and .cse11 .cse2)) .cse1 .cse14) (not (<= |old(~waterLevel~0)| 1)) (and .cse13 .cse1 (<= ~waterLevel~0 0) (or .cse15 .cse2) .cse14 .cse3) .cse9 .cse5 .cse12)))) [2021-11-23 02:44:56,846 INFO L854 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1))) (or .cse3 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2) (or .cse3 (not (= |old(~waterLevel~0)| 2)) .cse1))) [2021-11-23 02:44:56,846 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 205) no Hoare annotation was computed. [2021-11-23 02:44:56,846 INFO L854 garLoopResultBuilder]: At program point L761(line 761) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (or (= |timeShift_processEnvironment_~tmp~6#1| 0) (= |timeShift_processEnvironment_~tmp~6#1| ~methaneLevelCritical~0))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (= 0 ~systemActive~0)) (.cse5 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 2)) (and .cse1 (= ~waterLevel~0 1) .cse2 .cse3) .cse4) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 .cse3) .cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse5 .cse4 (not (< |old(~waterLevel~0)| 3))) (or .cse5 (not (= |old(~waterLevel~0)| 1))))) [2021-11-23 02:44:56,847 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 686 712) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse7 (and .cse8 (= ~pumpRunning~0 1))) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse5 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (= ~methaneLevelCritical~0 0) .cse2 .cse3 .cse4 .cse5) (or .cse6 (not (= |old(~waterLevel~0)| 2)) .cse2 .cse7) (or .cse0 (and .cse1 .cse8) .cse2 .cse5) (or .cse6 .cse2 .cse7 .cse4 .cse5) (or .cse6 .cse2 .cse3 .cse4 .cse5)))) [2021-11-23 02:44:56,847 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 686 712) no Hoare annotation was computed. [2021-11-23 02:44:56,847 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-11-23 02:44:56,847 INFO L854 garLoopResultBuilder]: At program point L196(line 196) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= ~waterLevel~0 1)) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse8 (not (<= |old(~waterLevel~0)| 1))) (.cse10 (or (= |timeShift_processEnvironment_~tmp~6#1| 0) (= |timeShift_processEnvironment_~tmp~6#1| ~methaneLevelCritical~0))) (.cse11 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~1#1| ~waterLevel~0)) (.cse13 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse12 (<= 1 ~switchedOnBeforeTS~0)) (.cse7 (= ~pumpRunning~0 1)) (.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse6 (= 0 ~systemActive~0)) (.cse9 (not (<= 1 |old(~switchedOnBeforeTS~0)|)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2)) (or .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse8 .cse3 .cse4 .cse6 .cse9 .cse7) (or .cse0 .cse5 .cse6) (or (and .cse10 .cse1 .cse11 .cse2 .cse12) (and .cse10 .cse11 .cse2 .cse12 .cse7) .cse4 .cse5 .cse6) (or .cse0 (and .cse1 .cse11 .cse13) .cse6 (not (< |old(~waterLevel~0)| 3))) (let ((.cse14 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)))) (or (and .cse10 .cse1 (or .cse14 (and (<= |old(~waterLevel~0)| 0) .cse13)) .cse11 .cse12) .cse8 (and .cse10 .cse11 (<= ~waterLevel~0 0) (or .cse14 .cse13) .cse12 .cse7) .cse4 .cse6 .cse9)))) [2021-11-23 02:44:56,847 INFO L858 garLoopResultBuilder]: For program point L196-1(line 196) no Hoare annotation was computed. [2021-11-23 02:44:56,848 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 61 90) no Hoare annotation was computed. [2021-11-23 02:44:56,848 INFO L854 garLoopResultBuilder]: At program point cleanupENTRY(lines 61 90) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1))) [2021-11-23 02:44:56,848 INFO L861 garLoopResultBuilder]: At program point L86(lines 61 90) the Hoare annotation is: true [2021-11-23 02:44:56,848 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-11-23 02:44:56,848 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 79) no Hoare annotation was computed. [2021-11-23 02:44:56,849 INFO L854 garLoopResultBuilder]: At program point L75-1(lines 75 79) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1))) [2021-11-23 02:44:56,849 INFO L854 garLoopResultBuilder]: At program point L71-2(lines 71 85) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1))) [2021-11-23 02:44:56,849 INFO L854 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1))) [2021-11-23 02:44:56,849 INFO L858 garLoopResultBuilder]: For program point L67-1(line 67) no Hoare annotation was computed. [2021-11-23 02:44:56,849 INFO L858 garLoopResultBuilder]: For program point L927(lines 927 933) no Hoare annotation was computed. [2021-11-23 02:44:56,849 INFO L858 garLoopResultBuilder]: For program point L927-1(lines 927 933) no Hoare annotation was computed. [2021-11-23 02:44:56,850 INFO L854 garLoopResultBuilder]: At program point L151(lines 151 158) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-11-23 02:44:56,850 INFO L861 garLoopResultBuilder]: At program point L151-2(lines 151 158) the Hoare annotation is: true [2021-11-23 02:44:56,850 INFO L854 garLoopResultBuilder]: At program point L965(lines 916 966) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1)) [2021-11-23 02:44:56,850 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 02:44:56,850 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 943) no Hoare annotation was computed. [2021-11-23 02:44:56,851 INFO L854 garLoopResultBuilder]: At program point L937-1(lines 937 943) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3)) (.cse2 (not (= 0 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 1))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse4 .cse2) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse4 .cse2 .cse3))) [2021-11-23 02:44:56,851 INFO L854 garLoopResultBuilder]: At program point L962(lines 917 964) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3)) (.cse2 (not (= 0 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 1))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse4 .cse2) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse4 .cse2 .cse3))) [2021-11-23 02:44:56,851 INFO L854 garLoopResultBuilder]: At program point L929(line 929) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3)) (.cse2 (not (= 0 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 1))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse4 .cse2) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse4 .cse2 .cse3))) [2021-11-23 02:44:56,851 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:44:56,851 INFO L854 garLoopResultBuilder]: At program point L955-2(lines 947 960) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3)) (.cse2 (not (= 0 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 1))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse4 .cse2) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse4 .cse2 .cse3))) [2021-11-23 02:44:56,852 INFO L858 garLoopResultBuilder]: For program point L918(lines 917 964) no Hoare annotation was computed. [2021-11-23 02:44:56,852 INFO L854 garLoopResultBuilder]: At program point L939(line 939) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3)) (.cse2 (not (= 0 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 1))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse4 .cse2) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse4 .cse2 .cse3))) [2021-11-23 02:44:56,852 INFO L861 garLoopResultBuilder]: At program point L968(lines 907 972) the Hoare annotation is: true [2021-11-23 02:44:56,852 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 721 745) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse1 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2021-11-23 02:44:56,852 INFO L854 garLoopResultBuilder]: At program point L735(line 735) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0)))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (or (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0) (<= 2 ~waterLevel~0))) .cse1 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2))) [2021-11-23 02:44:56,853 INFO L854 garLoopResultBuilder]: At program point L729(lines 729 737) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0)))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (or (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0) (<= 2 ~waterLevel~0))) .cse1 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2))) [2021-11-23 02:44:56,853 INFO L854 garLoopResultBuilder]: At program point L725(lines 725 742) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse1 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2021-11-23 02:44:56,853 INFO L854 garLoopResultBuilder]: At program point L740(line 740) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2021-11-23 02:44:56,853 INFO L858 garLoopResultBuilder]: For program point L740-1(lines 721 745) no Hoare annotation was computed. [2021-11-23 02:44:56,854 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 721 745) no Hoare annotation was computed. [2021-11-23 02:44:56,854 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 600 611) no Hoare annotation was computed. [2021-11-23 02:44:56,854 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 600 611) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 2))) (.cse4 (not (= ~pumpRunning~0 0))) (.cse0 (not (= ~pumpRunning~0 1))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse2 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse4 .cse2 .cse3) (or .cse0 .cse2 .cse3 (not (<= 1 ~switchedOnBeforeTS~0)) (not (< |old(~waterLevel~0)| 3))))) [2021-11-23 02:44:56,854 INFO L858 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 799 807) no Hoare annotation was computed. [2021-11-23 02:44:56,854 INFO L861 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 799 807) the Hoare annotation is: true [2021-11-23 02:44:56,858 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:56,859 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:44:56,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:44:56 BoogieIcfgContainer [2021-11-23 02:44:56,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:44:56,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:44:56,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:44:56,901 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:44:56,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:43:45" (3/4) ... [2021-11-23 02:44:56,905 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:44:56,910 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-23 02:44:56,910 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 02:44:56,910 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 02:44:56,911 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 02:44:56,911 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:44:56,911 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 02:44:56,911 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2021-11-23 02:44:56,921 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 76 nodes and edges [2021-11-23 02:44:56,921 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-23 02:44:56,922 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-23 02:44:56,923 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 02:44:56,923 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 02:44:56,924 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:44:56,925 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:44:56,951 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1) [2021-11-23 02:44:56,951 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 1) || !(\old(waterLevel) == 2)) || 0 == systemActive) || ((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || ((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) [2021-11-23 02:44:56,953 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((((!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || pumpRunning == 1)) && (((((!(\old(waterLevel) <= 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || pumpRunning == 1)) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && (((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 1)) || ((((tmp == 0 || tmp == methaneLevelCritical) && pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && 1 <= switchedOnBeforeTS)) || (((((tmp == 0 || tmp == methaneLevelCritical) && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(\old(pumpRunning) == 1) || ((((tmp == 0 || tmp == methaneLevelCritical) && pumpRunning == 0) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) == 2)) || ((((tmp == 0 || tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || 0 == systemActive) [2021-11-23 02:44:56,954 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(pumpRunning) == 0) || (((tmp == waterLevel && tmp == 2) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(\old(waterLevel) < 3)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && ((((!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || pumpRunning == 1)) && (((((!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS))) || pumpRunning == 1)) && (((((((((tmp == 0 || tmp == methaneLevelCritical) && pumpRunning == 0) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || (((((tmp == 0 || tmp == methaneLevelCritical) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && (((((!(\old(waterLevel) == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || pumpRunning == 1)) && ((((((((((tmp == 0 || tmp == methaneLevelCritical) && pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && tmp == waterLevel) && 1 <= switchedOnBeforeTS) || !(\old(waterLevel) <= 1)) || ((((((tmp == 0 || tmp == methaneLevelCritical) && tmp == waterLevel) && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) [2021-11-23 02:44:56,954 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) [2021-11-23 02:44:56,955 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) < 3)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && ((!(\old(pumpRunning) == 1) || !(\old(waterLevel) == 2)) || 0 == systemActive) [2021-11-23 02:44:56,955 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((((!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || pumpRunning == 1)) && (((((!(\old(waterLevel) <= 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || pumpRunning == 1)) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && (((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 1)) || ((((tmp == 0 || tmp == methaneLevelCritical) && pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && 1 <= switchedOnBeforeTS)) || (((((tmp == 0 || tmp == methaneLevelCritical) && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(\old(pumpRunning) == 1) || ((((tmp == 0 || tmp == methaneLevelCritical) && pumpRunning == 0) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) == 2)) || ((((tmp == 0 || tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || 0 == systemActive) [2021-11-23 02:44:56,955 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(waterLevel <= 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) || !(waterLevel < 3))) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) [2021-11-23 02:44:56,957 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 1) || !(\old(waterLevel) == 2)) || ((((tmp == 0 || tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 1)) || (((((tmp == 0 || tmp == methaneLevelCritical) && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) [2021-11-23 02:44:56,957 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(waterLevel <= 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && (tmp == 0 || 2 <= waterLevel))) || 0 == systemActive) || !(waterLevel < 3))) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) [2021-11-23 02:44:57,015 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:44:57,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:44:57,018 INFO L158 Benchmark]: Toolchain (without parser) took 72892.10ms. Allocated memory was 88.1MB in the beginning and 696.3MB in the end (delta: 608.2MB). Free memory was 50.9MB in the beginning and 243.7MB in the end (delta: -192.8MB). Peak memory consumption was 413.3MB. Max. memory is 16.1GB. [2021-11-23 02:44:57,019 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 88.1MB. Free memory was 68.1MB in the beginning and 68.0MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:44:57,019 INFO L158 Benchmark]: CACSL2BoogieTranslator took 534.88ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 50.7MB in the beginning and 82.0MB in the end (delta: -31.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:44:57,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.48ms. Allocated memory is still 113.2MB. Free memory was 81.6MB in the beginning and 79.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:44:57,020 INFO L158 Benchmark]: Boogie Preprocessor took 66.96ms. Allocated memory is still 113.2MB. Free memory was 79.1MB in the beginning and 77.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:44:57,021 INFO L158 Benchmark]: RCFGBuilder took 678.35ms. Allocated memory is still 113.2MB. Free memory was 77.7MB in the beginning and 56.0MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 02:44:57,021 INFO L158 Benchmark]: TraceAbstraction took 71429.06ms. Allocated memory was 113.2MB in the beginning and 696.3MB in the end (delta: 583.0MB). Free memory was 55.6MB in the beginning and 250.0MB in the end (delta: -194.4MB). Peak memory consumption was 401.2MB. Max. memory is 16.1GB. [2021-11-23 02:44:57,031 INFO L158 Benchmark]: Witness Printer took 116.87ms. Allocated memory is still 696.3MB. Free memory was 250.0MB in the beginning and 243.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:44:57,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 88.1MB. Free memory was 68.1MB in the beginning and 68.0MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 534.88ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 50.7MB in the beginning and 82.0MB in the end (delta: -31.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.48ms. Allocated memory is still 113.2MB. Free memory was 81.6MB in the beginning and 79.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.96ms. Allocated memory is still 113.2MB. Free memory was 79.1MB in the beginning and 77.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 678.35ms. Allocated memory is still 113.2MB. Free memory was 77.7MB in the beginning and 56.0MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 71429.06ms. Allocated memory was 113.2MB in the beginning and 696.3MB in the end (delta: 583.0MB). Free memory was 55.6MB in the beginning and 250.0MB in the end (delta: -194.4MB). Peak memory consumption was 401.2MB. Max. memory is 16.1GB. * Witness Printer took 116.87ms. Allocated memory is still 696.3MB. Free memory was 250.0MB in the beginning and 243.7MB in the end (delta: 6.3MB). 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: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.3s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2919 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2900 mSDsluCounter, 3201 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2968 mSDsCounter, 1822 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3987 IncrementalHoareTripleChecker+Invalid, 5809 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1822 mSolverCounterUnsat, 857 mSDtfsCounter, 3987 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 987 GetRequests, 708 SyntacticMatches, 4 SemanticMatches, 275 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6906 ImplicationChecksByTransitivity, 23.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=608occurred in iteration=10, InterpolantAutomatonStates: 146, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 489 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 2059 PreInvPairs, 2407 NumberOfFragments, 2489 HoareAnnotationTreeSize, 2059 FomulaSimplifications, 10385 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 36 FomulaSimplificationsInter, 48913 FormulaSimplificationTreeSizeReductionInter, 8.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 882 NumberOfCodeBlocks, 882 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1098 ConstructedInterpolants, 0 QuantifiedInterpolants, 2954 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1946 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 579/658 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: 729]: Loop Invariant Derived loop invariant: ((((!(waterLevel <= 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && (tmp == 0 || 2 <= waterLevel))) || 0 == systemActive) || !(waterLevel < 3))) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) < 3)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && ((!(\old(pumpRunning) == 1) || !(\old(waterLevel) == 2)) || 0 == systemActive) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: (((((!(waterLevel <= 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) || !(waterLevel < 3))) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) - InvariantResult [Line: 747]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((((!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || pumpRunning == 1)) && (((((!(\old(waterLevel) <= 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || pumpRunning == 1)) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && (((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 1)) || ((((tmp == 0 || tmp == methaneLevelCritical) && pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && 1 <= switchedOnBeforeTS)) || (((((tmp == 0 || tmp == methaneLevelCritical) && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(\old(pumpRunning) == 1) || ((((tmp == 0 || tmp == methaneLevelCritical) && pumpRunning == 0) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) == 2)) || ((((tmp == 0 || tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || 0 == systemActive) - InvariantResult [Line: 917]: Loop Invariant Derived loop invariant: (((((2 == waterLevel && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive)) && pumpRunning == 1) || ((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && waterLevel < 3) && !(0 == systemActive))) || (((((tmp == 1 && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && waterLevel < 3) && !(0 == systemActive)) && pumpRunning == 1) - InvariantResult [Line: 700]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((((!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || pumpRunning == 1)) && (((((!(\old(waterLevel) <= 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || pumpRunning == 1)) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && (((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 1)) || ((((tmp == 0 || tmp == methaneLevelCritical) && pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && 1 <= switchedOnBeforeTS)) || (((((tmp == 0 || tmp == methaneLevelCritical) && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(\old(pumpRunning) == 1) || ((((tmp == 0 || tmp == methaneLevelCritical) && pumpRunning == 0) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) == 2)) || ((((tmp == 0 || tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || 0 == systemActive) - InvariantResult [Line: 751]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1) - InvariantResult [Line: 755]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 1) || !(\old(waterLevel) == 2)) || ((((tmp == 0 || tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 1)) || (((((tmp == 0 || tmp == methaneLevelCritical) && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 1) || !(\old(waterLevel) == 2)) || 0 == systemActive) || ((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || ((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) - InvariantResult [Line: 186]: Loop Invariant Derived loop invariant: (((((((((!(\old(pumpRunning) == 0) || (((tmp == waterLevel && tmp == 2) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(\old(waterLevel) < 3)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && ((((!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || pumpRunning == 1)) && (((((!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS))) || pumpRunning == 1)) && (((((((((tmp == 0 || tmp == methaneLevelCritical) && pumpRunning == 0) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || (((((tmp == 0 || tmp == methaneLevelCritical) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && (((((!(\old(waterLevel) == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || pumpRunning == 1)) && ((((((((((tmp == 0 || tmp == methaneLevelCritical) && pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && tmp == waterLevel) && 1 <= switchedOnBeforeTS) || !(\old(waterLevel) <= 1)) || ((((((tmp == 0 || tmp == methaneLevelCritical) && tmp == waterLevel) && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 916]: Loop Invariant Derived loop invariant: pumpRunning == 0 && waterLevel == 1 - InvariantResult [Line: 907]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 937]: Loop Invariant Derived loop invariant: (((((2 == waterLevel && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive)) && pumpRunning == 1) || ((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && waterLevel < 3) && !(0 == systemActive))) || (((((tmp == 1 && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && waterLevel < 3) && !(0 == systemActive)) && pumpRunning == 1) - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 02:44:57,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296d733a-1af7-4f4a-a010-57f8e4665cb3/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