./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI --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 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 04:08:25,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:08:25,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:08:25,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:08:25,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:08:25,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:08:25,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:08:25,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:08:25,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:08:25,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:08:25,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:08:25,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:08:25,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:08:25,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:08:25,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:08:25,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:08:25,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:08:25,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:08:25,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:08:25,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:08:25,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:08:25,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:08:25,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:08:25,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:08:25,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:08:25,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:08:25,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:08:25,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:08:25,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:08:25,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:08:25,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:08:25,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:08:25,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:08:25,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:08:25,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:08:25,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:08:25,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:08:25,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:08:25,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:08:25,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:08:25,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:08:25,694 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 04:08:25,737 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:08:25,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:08:25,738 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:08:25,738 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:08:25,739 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:08:25,739 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:08:25,739 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:08:25,740 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:08:25,740 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:08:25,740 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:08:25,741 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:08:25,742 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:08:25,742 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:08:25,742 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:08:25,742 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:08:25,742 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:08:25,743 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:08:25,743 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:08:25,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:08:25,744 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 04:08:25,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:08:25,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 04:08:25,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:08:25,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:08:25,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:08:25,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:08:25,745 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 04:08:25,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:08:25,746 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:08:25,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:08:25,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:08:25,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:08:25,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:08:25,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:08:25,747 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:08:25,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:08:25,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:08:25,748 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:08:25,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:08:25,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:08:25,748 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:08:25,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b [2022-11-03 04:08:26,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:08:26,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:08:26,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:08:26,088 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:08:26,089 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:08:26,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2022-11-03 04:08:26,166 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/data/4cda051f1/fac2391ba2b8483095605501a92f04ea/FLAG72f89f01c [2022-11-03 04:08:26,798 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:08:26,799 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2022-11-03 04:08:26,821 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/data/4cda051f1/fac2391ba2b8483095605501a92f04ea/FLAG72f89f01c [2022-11-03 04:08:27,082 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/data/4cda051f1/fac2391ba2b8483095605501a92f04ea [2022-11-03 04:08:27,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:08:27,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:08:27,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:08:27,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:08:27,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:08:27,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:08:27" (1/1) ... [2022-11-03 04:08:27,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43733ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:27, skipping insertion in model container [2022-11-03 04:08:27,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:08:27" (1/1) ... [2022-11-03 04:08:27,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:08:27,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:08:27,367 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_35bcca86-8234-4454-a3df-ad65b33ff99c/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[2141,2154] [2022-11-03 04:08:27,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:08:27,574 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:08:27,602 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_35bcca86-8234-4454-a3df-ad65b33ff99c/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[2141,2154] [2022-11-03 04:08:27,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:08:27,672 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:08:27,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:27 WrapperNode [2022-11-03 04:08:27,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:08:27,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:08:27,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:08:27,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:08:27,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:27" (1/1) ... [2022-11-03 04:08:27,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:27" (1/1) ... [2022-11-03 04:08:27,727 INFO L138 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 238 [2022-11-03 04:08:27,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:08:27,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:08:27,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:08:27,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:08:27,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:27" (1/1) ... [2022-11-03 04:08:27,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:27" (1/1) ... [2022-11-03 04:08:27,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:27" (1/1) ... [2022-11-03 04:08:27,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:27" (1/1) ... [2022-11-03 04:08:27,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:27" (1/1) ... [2022-11-03 04:08:27,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:27" (1/1) ... [2022-11-03 04:08:27,761 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:27" (1/1) ... [2022-11-03 04:08:27,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:27" (1/1) ... [2022-11-03 04:08:27,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:08:27,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:08:27,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:08:27,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:08:27,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:27" (1/1) ... [2022-11-03 04:08:27,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:08:27,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:27,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:08:27,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:08:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:08:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 04:08:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 04:08:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 04:08:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 04:08:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 04:08:27,887 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 04:08:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 04:08:27,887 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 04:08:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-03 04:08:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-03 04:08:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:08:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 04:08:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 04:08:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:08:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:08:28,013 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:08:28,016 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:08:28,469 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:08:28,618 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:08:28,618 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 04:08:28,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:08:28 BoogieIcfgContainer [2022-11-03 04:08:28,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:08:28,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:08:28,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:08:28,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:08:28,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:08:27" (1/3) ... [2022-11-03 04:08:28,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9bc4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:08:28, skipping insertion in model container [2022-11-03 04:08:28,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:27" (2/3) ... [2022-11-03 04:08:28,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9bc4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:08:28, skipping insertion in model container [2022-11-03 04:08:28,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:08:28" (3/3) ... [2022-11-03 04:08:28,631 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2022-11-03 04:08:28,650 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:08:28,650 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:08:28,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:08:28,747 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31a68e18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:08:28,750 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:08:28,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-03 04:08:28,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 04:08:28,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:28,769 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:28,770 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:28,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:28,780 INFO L85 PathProgramCache]: Analyzing trace with hash -631509363, now seen corresponding path program 1 times [2022-11-03 04:08:28,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:28,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731535290] [2022-11-03 04:08:28,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:28,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:29,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 04:08:29,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:29,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731535290] [2022-11-03 04:08:29,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731535290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:29,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:29,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:08:29,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606233597] [2022-11-03 04:08:29,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:29,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 04:08:29,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:29,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 04:08:29,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:08:29,117 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) 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) [2022-11-03 04:08:29,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:29,223 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2022-11-03 04:08:29,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 04:08:29,226 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 [2022-11-03 04:08:29,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:29,238 INFO L225 Difference]: With dead ends: 100 [2022-11-03 04:08:29,239 INFO L226 Difference]: Without dead ends: 46 [2022-11-03 04:08:29,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:08:29,250 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:29,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:08:29,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-03 04:08:29,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-03 04:08:29,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-03 04:08:29,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-11-03 04:08:29,302 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2022-11-03 04:08:29,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:29,302 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-11-03 04:08:29,303 INFO L496 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) [2022-11-03 04:08:29,303 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2022-11-03 04:08:29,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 04:08:29,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:29,306 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:29,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:08:29,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:29,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:29,308 INFO L85 PathProgramCache]: Analyzing trace with hash -896725322, now seen corresponding path program 1 times [2022-11-03 04:08:29,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:29,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761392802] [2022-11-03 04:08:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:29,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:29,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 04:08:29,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:29,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761392802] [2022-11-03 04:08:29,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761392802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:29,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:29,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:08:29,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148441443] [2022-11-03 04:08:29,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:29,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:08:29,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:29,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:08:29,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:08:29,472 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-03 04:08:29,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:29,552 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2022-11-03 04:08:29,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:08:29,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 22 [2022-11-03 04:08:29,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:29,556 INFO L225 Difference]: With dead ends: 69 [2022-11-03 04:08:29,558 INFO L226 Difference]: Without dead ends: 38 [2022-11-03 04:08:29,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:08:29,561 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:29,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 61 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:08:29,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-03 04:08:29,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-03 04:08:29,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-03 04:08:29,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2022-11-03 04:08:29,580 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 22 [2022-11-03 04:08:29,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:29,581 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2022-11-03 04:08:29,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-03 04:08:29,583 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2022-11-03 04:08:29,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 04:08:29,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:29,585 INFO L195 NwaCegarLoop]: 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] [2022-11-03 04:08:29,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:08:29,586 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:29,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:29,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1526551836, now seen corresponding path program 1 times [2022-11-03 04:08:29,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:29,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036525061] [2022-11-03 04:08:29,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:29,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:29,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 04:08:29,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:29,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036525061] [2022-11-03 04:08:29,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036525061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:29,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:29,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:08:29,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176399273] [2022-11-03 04:08:29,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:29,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:08:29,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:29,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:08:29,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:08:29,926 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 04:08:30,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:30,473 INFO L93 Difference]: Finished difference Result 145 states and 181 transitions. [2022-11-03 04:08:30,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 04:08:30,474 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-11-03 04:08:30,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:30,476 INFO L225 Difference]: With dead ends: 145 [2022-11-03 04:08:30,476 INFO L226 Difference]: Without dead ends: 109 [2022-11-03 04:08:30,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:08:30,478 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 74 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:30,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 289 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 04:08:30,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-03 04:08:30,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 76. [2022-11-03 04:08:30,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 50 states have (on average 1.26) internal successors, (63), 56 states have internal predecessors, (63), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) [2022-11-03 04:08:30,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2022-11-03 04:08:30,498 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 24 [2022-11-03 04:08:30,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:30,499 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2022-11-03 04:08:30,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 04:08:30,499 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2022-11-03 04:08:30,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 04:08:30,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:30,500 INFO L195 NwaCegarLoop]: 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] [2022-11-03 04:08:30,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:08:30,501 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:30,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:30,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1117676100, now seen corresponding path program 1 times [2022-11-03 04:08:30,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:30,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075244514] [2022-11-03 04:08:30,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:30,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:31,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:08:31,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:31,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075244514] [2022-11-03 04:08:31,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075244514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:31,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:31,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:08:31,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344798158] [2022-11-03 04:08:31,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:31,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 04:08:31,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:31,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 04:08:31,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:08:31,103 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 04:08:31,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:31,658 INFO L93 Difference]: Finished difference Result 267 states and 338 transitions. [2022-11-03 04:08:31,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 04:08:31,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-11-03 04:08:31,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:31,667 INFO L225 Difference]: With dead ends: 267 [2022-11-03 04:08:31,667 INFO L226 Difference]: Without dead ends: 193 [2022-11-03 04:08:31,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2022-11-03 04:08:31,679 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 133 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:31,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 315 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:08:31,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-11-03 04:08:31,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 129. [2022-11-03 04:08:31,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 87 states have (on average 1.2298850574712643) internal successors, (107), 95 states have internal predecessors, (107), 20 states have call successors, (20), 19 states have call predecessors, (20), 21 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2022-11-03 04:08:31,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 151 transitions. [2022-11-03 04:08:31,705 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 151 transitions. Word has length 27 [2022-11-03 04:08:31,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:31,706 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 151 transitions. [2022-11-03 04:08:31,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 04:08:31,706 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 151 transitions. [2022-11-03 04:08:31,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-03 04:08:31,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:31,708 INFO L195 NwaCegarLoop]: 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] [2022-11-03 04:08:31,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:08:31,708 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:31,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:31,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1055167928, now seen corresponding path program 1 times [2022-11-03 04:08:31,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:31,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338910845] [2022-11-03 04:08:31,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:31,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:31,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 04:08:31,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:31,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338910845] [2022-11-03 04:08:31,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338910845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:31,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:31,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:08:31,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244204636] [2022-11-03 04:08:31,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:31,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:08:31,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:31,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:08:32,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:08:32,002 INFO L87 Difference]: Start difference. First operand 129 states and 151 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:08:32,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:32,467 INFO L93 Difference]: Finished difference Result 366 states and 438 transitions. [2022-11-03 04:08:32,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 04:08:32,468 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2022-11-03 04:08:32,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:32,470 INFO L225 Difference]: With dead ends: 366 [2022-11-03 04:08:32,470 INFO L226 Difference]: Without dead ends: 270 [2022-11-03 04:08:32,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-11-03 04:08:32,472 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 137 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:32,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 230 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:08:32,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-03 04:08:32,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 212. [2022-11-03 04:08:32,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 144 states have (on average 1.2291666666666667) internal successors, (177), 157 states have internal predecessors, (177), 33 states have call successors, (33), 30 states have call predecessors, (33), 34 states have return successors, (41), 33 states have call predecessors, (41), 33 states have call successors, (41) [2022-11-03 04:08:32,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 251 transitions. [2022-11-03 04:08:32,532 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 251 transitions. Word has length 30 [2022-11-03 04:08:32,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:32,532 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 251 transitions. [2022-11-03 04:08:32,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:08:32,532 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 251 transitions. [2022-11-03 04:08:32,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-03 04:08:32,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:32,547 INFO L195 NwaCegarLoop]: 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] [2022-11-03 04:08:32,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:08:32,548 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:32,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:32,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1641184103, now seen corresponding path program 1 times [2022-11-03 04:08:32,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:32,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55861741] [2022-11-03 04:08:32,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:32,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:32,923 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 04:08:32,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:32,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55861741] [2022-11-03 04:08:32,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55861741] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:32,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169437154] [2022-11-03 04:08:32,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:32,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:32,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:32,926 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:32,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:08:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:33,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-03 04:08:33,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:33,296 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:33,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:33,805 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 04:08:33,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169437154] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:33,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1092686608] [2022-11-03 04:08:33,839 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-11-03 04:08:33,839 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:33,843 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:33,850 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:33,850 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:45,040 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 55 for LOIs [2022-11-03 04:08:45,051 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 59 for LOIs [2022-11-03 04:08:45,602 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2022-11-03 04:08:45,603 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:08:51,147 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2707#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (<= 0 (+ ~waterLevel~0 2147483648)) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= ~waterLevel~0 2147483647) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 0 (+ |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483648)) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483648)) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483647) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483647) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 04:08:51,147 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:08:51,147 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:08:51,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 9] total 22 [2022-11-03 04:08:51,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021336532] [2022-11-03 04:08:51,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:51,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 04:08:51,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:51,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 04:08:51,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=1824, Unknown=0, NotChecked=0, Total=2070 [2022-11-03 04:08:51,150 INFO L87 Difference]: Start difference. First operand 212 states and 251 transitions. Second operand has 22 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (13), 7 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-03 04:08:53,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:53,747 INFO L93 Difference]: Finished difference Result 920 states and 1153 transitions. [2022-11-03 04:08:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-03 04:08:53,750 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (13), 7 states have call predecessors, (13), 8 states have call successors, (13) Word has length 47 [2022-11-03 04:08:53,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:53,755 INFO L225 Difference]: With dead ends: 920 [2022-11-03 04:08:53,755 INFO L226 Difference]: Without dead ends: 709 [2022-11-03 04:08:53,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2147 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=896, Invalid=6076, Unknown=0, NotChecked=0, Total=6972 [2022-11-03 04:08:53,761 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 638 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 1700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:53,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 555 Invalid, 1700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-03 04:08:53,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2022-11-03 04:08:53,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 566. [2022-11-03 04:08:53,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 376 states have (on average 1.199468085106383) internal successors, (451), 418 states have internal predecessors, (451), 92 states have call successors, (92), 88 states have call predecessors, (92), 97 states have return successors, (138), 90 states have call predecessors, (138), 92 states have call successors, (138) [2022-11-03 04:08:53,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 681 transitions. [2022-11-03 04:08:53,878 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 681 transitions. Word has length 47 [2022-11-03 04:08:53,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:53,879 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 681 transitions. [2022-11-03 04:08:53,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (13), 7 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-03 04:08:53,879 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 681 transitions. [2022-11-03 04:08:53,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-03 04:08:53,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:53,883 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-03 04:08:53,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 04:08:54,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:54,099 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:54,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:54,100 INFO L85 PathProgramCache]: Analyzing trace with hash 119352699, now seen corresponding path program 1 times [2022-11-03 04:08:54,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:54,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459256606] [2022-11-03 04:08:54,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:54,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:54,621 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:08:54,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:54,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459256606] [2022-11-03 04:08:54,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459256606] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:54,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809904749] [2022-11-03 04:08:54,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:54,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:54,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:54,632 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:54,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:08:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:54,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-03 04:08:54,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:55,156 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 04:08:55,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:55,787 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:08:55,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809904749] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:55,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [726867956] [2022-11-03 04:08:55,794 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-11-03 04:08:55,794 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:55,795 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:55,795 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:55,795 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:09:01,146 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 35 for LOIs [2022-11-03 04:09:01,154 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 36 for LOIs [2022-11-03 04:09:01,574 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 23 for LOIs [2022-11-03 04:09:01,577 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:09:06,534 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5469#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= ~pumpRunning~0 1) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= |old(~pumpRunning~0)| 0) (<= 0 (+ ~waterLevel~0 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 1) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= ~waterLevel~0 2147483647) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 0 ~pumpRunning~0) (<= 0 (+ |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483648)) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483647) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= 0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 04:09:06,534 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:09:06,534 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:09:06,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 26 [2022-11-03 04:09:06,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667396755] [2022-11-03 04:09:06,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:09:06,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-03 04:09:06,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:06,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-03 04:09:06,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=2180, Unknown=0, NotChecked=0, Total=2450 [2022-11-03 04:09:06,538 INFO L87 Difference]: Start difference. First operand 566 states and 681 transitions. Second operand has 26 states, 21 states have (on average 3.238095238095238) internal successors, (68), 23 states have internal predecessors, (68), 9 states have call successors, (16), 7 states have call predecessors, (16), 11 states have return successors, (16), 10 states have call predecessors, (16), 9 states have call successors, (16) [2022-11-03 04:09:10,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:10,172 INFO L93 Difference]: Finished difference Result 1982 states and 2549 transitions. [2022-11-03 04:09:10,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-11-03 04:09:10,174 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 21 states have (on average 3.238095238095238) internal successors, (68), 23 states have internal predecessors, (68), 9 states have call successors, (16), 7 states have call predecessors, (16), 11 states have return successors, (16), 10 states have call predecessors, (16), 9 states have call successors, (16) Word has length 52 [2022-11-03 04:09:10,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:10,184 INFO L225 Difference]: With dead ends: 1982 [2022-11-03 04:09:10,184 INFO L226 Difference]: Without dead ends: 1659 [2022-11-03 04:09:10,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 125 SyntacticMatches, 6 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3402 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=1329, Invalid=8771, Unknown=0, NotChecked=0, Total=10100 [2022-11-03 04:09:10,189 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 753 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 2128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:10,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 806 Invalid, 2128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 04:09:10,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-11-03 04:09:10,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1071. [2022-11-03 04:09:10,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 703 states have (on average 1.2048364153627311) internal successors, (847), 796 states have internal predecessors, (847), 183 states have call successors, (183), 164 states have call predecessors, (183), 184 states have return successors, (311), 173 states have call predecessors, (311), 183 states have call successors, (311) [2022-11-03 04:09:10,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1341 transitions. [2022-11-03 04:09:10,400 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1341 transitions. Word has length 52 [2022-11-03 04:09:10,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:10,401 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1341 transitions. [2022-11-03 04:09:10,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 21 states have (on average 3.238095238095238) internal successors, (68), 23 states have internal predecessors, (68), 9 states have call successors, (16), 7 states have call predecessors, (16), 11 states have return successors, (16), 10 states have call predecessors, (16), 9 states have call successors, (16) [2022-11-03 04:09:10,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1341 transitions. [2022-11-03 04:09:10,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-03 04:09:10,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:10,412 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:10,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:10,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:10,619 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:10,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:10,619 INFO L85 PathProgramCache]: Analyzing trace with hash 166273631, now seen corresponding path program 1 times [2022-11-03 04:09:10,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:10,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242140120] [2022-11-03 04:09:10,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:10,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:11,185 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 49 proven. 18 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-03 04:09:11,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:11,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242140120] [2022-11-03 04:09:11,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242140120] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:11,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800173590] [2022-11-03 04:09:11,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:11,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:11,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:11,187 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:09:11,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:09:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:11,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-03 04:09:11,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:11,771 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 103 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-03 04:09:11,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:12,192 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 66 proven. 21 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-03 04:09:12,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800173590] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:09:12,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [333943513] [2022-11-03 04:09:12,195 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-11-03 04:09:12,195 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:09:12,195 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:09:12,196 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:09:12,196 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:09:27,893 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 36 for LOIs [2022-11-03 04:09:27,897 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 29 for LOIs [2022-11-03 04:09:28,060 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 55 for LOIs [2022-11-03 04:09:28,067 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:09:33,053 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10941#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (= ~methaneLevelCritical~0 0) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (<= |old(~pumpRunning~0)| 2147483647) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483648)) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483648)) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 04:09:33,054 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:09:33,054 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:09:33,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 11] total 32 [2022-11-03 04:09:33,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819971656] [2022-11-03 04:09:33,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:09:33,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-03 04:09:33,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:33,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-03 04:09:33,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=2877, Unknown=0, NotChecked=0, Total=3192 [2022-11-03 04:09:33,056 INFO L87 Difference]: Start difference. First operand 1071 states and 1341 transitions. Second operand has 32 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 28 states have internal predecessors, (92), 10 states have call successors, (20), 6 states have call predecessors, (20), 9 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-03 04:09:37,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:37,973 INFO L93 Difference]: Finished difference Result 2330 states and 3032 transitions. [2022-11-03 04:09:37,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-11-03 04:09:37,974 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 28 states have internal predecessors, (92), 10 states have call successors, (20), 6 states have call predecessors, (20), 9 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) Word has length 91 [2022-11-03 04:09:37,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:37,985 INFO L225 Difference]: With dead ends: 2330 [2022-11-03 04:09:37,985 INFO L226 Difference]: Without dead ends: 1332 [2022-11-03 04:09:37,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5643 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=1970, Invalid=14800, Unknown=0, NotChecked=0, Total=16770 [2022-11-03 04:09:37,996 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 1059 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 2203 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 2992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 2203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:37,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 1015 Invalid, 2992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 2203 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-03 04:09:37,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2022-11-03 04:09:38,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1008. [2022-11-03 04:09:38,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 660 states have (on average 1.1954545454545455) internal successors, (789), 748 states have internal predecessors, (789), 174 states have call successors, (174), 152 states have call predecessors, (174), 173 states have return successors, (271), 155 states have call predecessors, (271), 174 states have call successors, (271) [2022-11-03 04:09:38,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1234 transitions. [2022-11-03 04:09:38,168 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1234 transitions. Word has length 91 [2022-11-03 04:09:38,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:38,168 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 1234 transitions. [2022-11-03 04:09:38,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 28 states have internal predecessors, (92), 10 states have call successors, (20), 6 states have call predecessors, (20), 9 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-03 04:09:38,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1234 transitions. [2022-11-03 04:09:38,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-03 04:09:38,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:38,173 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:38,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:38,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:38,383 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:38,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:38,383 INFO L85 PathProgramCache]: Analyzing trace with hash 70026667, now seen corresponding path program 1 times [2022-11-03 04:09:38,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:38,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881988598] [2022-11-03 04:09:38,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:38,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:38,889 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 66 proven. 30 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-03 04:09:38,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:38,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881988598] [2022-11-03 04:09:38,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881988598] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:38,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081913179] [2022-11-03 04:09:38,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:38,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:38,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:38,895 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:09:38,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 04:09:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:39,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 04:09:39,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 105 proven. 5 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-03 04:09:39,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:39,829 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 68 proven. 24 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-11-03 04:09:39,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081913179] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:09:39,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [977660005] [2022-11-03 04:09:39,831 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-11-03 04:09:39,831 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:09:39,832 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:09:39,832 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:09:39,832 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:09:44,527 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 36 for LOIs [2022-11-03 04:09:44,532 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 29 for LOIs [2022-11-03 04:09:44,727 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 55 for LOIs [2022-11-03 04:09:44,736 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:09:49,155 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16964#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= ~pumpRunning~0 2147483647) (= ~methaneLevelCritical~0 0) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (<= |old(~pumpRunning~0)| 2147483647) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= |#NULL.offset| 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483648)) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 04:09:49,155 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:09:49,155 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:09:49,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 13] total 28 [2022-11-03 04:09:49,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220125246] [2022-11-03 04:09:49,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:09:49,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-03 04:09:49,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:49,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-03 04:09:49,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=2465, Unknown=0, NotChecked=0, Total=2756 [2022-11-03 04:09:49,158 INFO L87 Difference]: Start difference. First operand 1008 states and 1234 transitions. Second operand has 28 states, 25 states have (on average 4.0) internal successors, (100), 24 states have internal predecessors, (100), 10 states have call successors, (19), 5 states have call predecessors, (19), 9 states have return successors, (20), 11 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-03 04:09:50,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:50,790 INFO L93 Difference]: Finished difference Result 2095 states and 2608 transitions. [2022-11-03 04:09:50,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-03 04:09:50,790 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 4.0) internal successors, (100), 24 states have internal predecessors, (100), 10 states have call successors, (19), 5 states have call predecessors, (19), 9 states have return successors, (20), 11 states have call predecessors, (20), 10 states have call successors, (20) Word has length 95 [2022-11-03 04:09:50,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:50,797 INFO L225 Difference]: With dead ends: 2095 [2022-11-03 04:09:50,798 INFO L226 Difference]: Without dead ends: 1224 [2022-11-03 04:09:50,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 255 SyntacticMatches, 1 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1846 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=738, Invalid=5582, Unknown=0, NotChecked=0, Total=6320 [2022-11-03 04:09:50,803 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 377 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:50,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 493 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 04:09:50,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2022-11-03 04:09:50,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 992. [2022-11-03 04:09:50,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 649 states have (on average 1.1741140215716488) internal successors, (762), 731 states have internal predecessors, (762), 171 states have call successors, (171), 153 states have call predecessors, (171), 171 states have return successors, (244), 155 states have call predecessors, (244), 171 states have call successors, (244) [2022-11-03 04:09:50,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1177 transitions. [2022-11-03 04:09:50,985 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1177 transitions. Word has length 95 [2022-11-03 04:09:50,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:50,985 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1177 transitions. [2022-11-03 04:09:50,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 4.0) internal successors, (100), 24 states have internal predecessors, (100), 10 states have call successors, (19), 5 states have call predecessors, (19), 9 states have return successors, (20), 11 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-03 04:09:50,986 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1177 transitions. [2022-11-03 04:09:50,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-03 04:09:50,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:50,994 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:51,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-03 04:09:51,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:51,219 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:51,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:51,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1646917956, now seen corresponding path program 1 times [2022-11-03 04:09:51,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:51,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646049501] [2022-11-03 04:09:51,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:51,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:52,407 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 10 proven. 81 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-03 04:09:52,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:52,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646049501] [2022-11-03 04:09:52,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646049501] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:52,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886619215] [2022-11-03 04:09:52,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:52,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:52,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:52,409 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:09:52,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 04:09:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:52,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-03 04:09:52,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:53,057 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 79 proven. 48 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 04:09:53,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:53,749 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 79 proven. 21 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-03 04:09:53,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886619215] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:09:53,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [428037009] [2022-11-03 04:09:53,752 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-03 04:09:53,752 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:09:53,753 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:09:53,753 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:09:53,753 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:10:08,940 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 36 for LOIs [2022-11-03 04:10:08,945 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 29 for LOIs [2022-11-03 04:10:09,220 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2022-11-03 04:10:09,222 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 32 for LOIs [2022-11-03 04:10:09,224 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:10:14,253 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22529#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (= ~methaneLevelCritical~0 0) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (<= |old(~pumpRunning~0)| 2147483647) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483648)) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483648)) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 04:10:14,254 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:10:14,254 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:10:14,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 16, 15] total 38 [2022-11-03 04:10:14,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299595412] [2022-11-03 04:10:14,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:10:14,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-03 04:10:14,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:10:14,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-03 04:10:14,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=491, Invalid=3541, Unknown=0, NotChecked=0, Total=4032 [2022-11-03 04:10:14,257 INFO L87 Difference]: Start difference. First operand 992 states and 1177 transitions. Second operand has 38 states, 35 states have (on average 3.942857142857143) internal successors, (138), 33 states have internal predecessors, (138), 16 states have call successors, (28), 8 states have call predecessors, (28), 14 states have return successors, (30), 17 states have call predecessors, (30), 16 states have call successors, (30) [2022-11-03 04:10:20,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:20,169 INFO L93 Difference]: Finished difference Result 1912 states and 2301 transitions. [2022-11-03 04:10:20,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-11-03 04:10:20,170 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 35 states have (on average 3.942857142857143) internal successors, (138), 33 states have internal predecessors, (138), 16 states have call successors, (28), 8 states have call predecessors, (28), 14 states have return successors, (30), 17 states have call predecessors, (30), 16 states have call successors, (30) Word has length 100 [2022-11-03 04:10:20,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:20,175 INFO L225 Difference]: With dead ends: 1912 [2022-11-03 04:10:20,175 INFO L226 Difference]: Without dead ends: 1042 [2022-11-03 04:10:20,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 282 SyntacticMatches, 13 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8056 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=3448, Invalid=19504, Unknown=0, NotChecked=0, Total=22952 [2022-11-03 04:10:20,182 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 1366 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 2214 mSolverCounterSat, 1126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 3340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1126 IncrementalHoareTripleChecker+Valid, 2214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:20,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 871 Invalid, 3340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1126 Valid, 2214 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-03 04:10:20,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2022-11-03 04:10:20,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 971. [2022-11-03 04:10:20,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 639 states have (on average 1.162754303599374) internal successors, (743), 713 states have internal predecessors, (743), 166 states have call successors, (166), 147 states have call predecessors, (166), 165 states have return successors, (222), 153 states have call predecessors, (222), 166 states have call successors, (222) [2022-11-03 04:10:20,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1131 transitions. [2022-11-03 04:10:20,348 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1131 transitions. Word has length 100 [2022-11-03 04:10:20,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:20,348 INFO L495 AbstractCegarLoop]: Abstraction has 971 states and 1131 transitions. [2022-11-03 04:10:20,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 35 states have (on average 3.942857142857143) internal successors, (138), 33 states have internal predecessors, (138), 16 states have call successors, (28), 8 states have call predecessors, (28), 14 states have return successors, (30), 17 states have call predecessors, (30), 16 states have call successors, (30) [2022-11-03 04:10:20,349 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1131 transitions. [2022-11-03 04:10:20,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-03 04:10:20,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:20,353 INFO L195 NwaCegarLoop]: trace histogram [8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:20,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:20,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 04:10:20,567 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:20,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:20,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1469688887, now seen corresponding path program 2 times [2022-11-03 04:10:20,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:10:20,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908353751] [2022-11-03 04:10:20,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:20,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:10:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:21,456 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 102 proven. 45 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-03 04:10:21,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:10:21,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908353751] [2022-11-03 04:10:21,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908353751] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:21,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666006683] [2022-11-03 04:10:21,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 04:10:21,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:10:21,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:10:21,459 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:10:21,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 04:10:21,590 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-03 04:10:21,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:10:21,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 65 conjunts are in the unsatisfiable core [2022-11-03 04:10:21,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:22,298 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 129 proven. 55 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 04:10:22,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:23,128 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 126 proven. 24 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-03 04:10:23,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666006683] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:10:23,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [325829975] [2022-11-03 04:10:23,131 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-03 04:10:23,131 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:10:23,131 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:10:23,131 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:10:23,132 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:10:27,400 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 36 for LOIs [2022-11-03 04:10:27,404 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 29 for LOIs [2022-11-03 04:10:27,661 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2022-11-03 04:10:27,663 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 32 for LOIs [2022-11-03 04:10:27,665 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:10:32,750 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28049#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (= ~methaneLevelCritical~0 0) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (<= |old(~pumpRunning~0)| 2147483647) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483648)) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483648)) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 04:10:32,750 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:10:32,750 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:10:32,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 20, 17] total 39 [2022-11-03 04:10:32,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153284677] [2022-11-03 04:10:32,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:10:32,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-03 04:10:32,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:10:32,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-03 04:10:32,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=514, Invalid=3646, Unknown=0, NotChecked=0, Total=4160 [2022-11-03 04:10:32,753 INFO L87 Difference]: Start difference. First operand 971 states and 1131 transitions. Second operand has 39 states, 35 states have (on average 4.0) internal successors, (140), 35 states have internal predecessors, (140), 17 states have call successors, (31), 8 states have call predecessors, (31), 15 states have return successors, (32), 17 states have call predecessors, (32), 17 states have call successors, (32) [2022-11-03 04:10:36,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:36,735 INFO L93 Difference]: Finished difference Result 1762 states and 2083 transitions. [2022-11-03 04:10:36,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-03 04:10:36,736 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 35 states have (on average 4.0) internal successors, (140), 35 states have internal predecessors, (140), 17 states have call successors, (31), 8 states have call predecessors, (31), 15 states have return successors, (32), 17 states have call predecessors, (32), 17 states have call successors, (32) Word has length 120 [2022-11-03 04:10:36,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:36,739 INFO L225 Difference]: With dead ends: 1762 [2022-11-03 04:10:36,739 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 04:10:36,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 329 SyntacticMatches, 13 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5064 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=2281, Invalid=12725, Unknown=0, NotChecked=0, Total=15006 [2022-11-03 04:10:36,749 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 910 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 1678 mSolverCounterSat, 743 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 2421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 743 IncrementalHoareTripleChecker+Valid, 1678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:36,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 598 Invalid, 2421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [743 Valid, 1678 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-03 04:10:36,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 04:10:36,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 04:10:36,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:36,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 04:10:36,752 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 120 [2022-11-03 04:10:36,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:36,752 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 04:10:36,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 35 states have (on average 4.0) internal successors, (140), 35 states have internal predecessors, (140), 17 states have call successors, (31), 8 states have call predecessors, (31), 15 states have return successors, (32), 17 states have call predecessors, (32), 17 states have call successors, (32) [2022-11-03 04:10:36,753 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 04:10:36,754 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 04:10:36,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 04:10:36,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:36,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-03 04:10:36,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 04:10:59,059 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 140 146) no Hoare annotation was computed. [2022-11-03 04:10:59,060 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 140 146) the Hoare annotation is: true [2022-11-03 04:10:59,060 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 900 911) the Hoare annotation is: true [2022-11-03 04:10:59,060 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 900 911) no Hoare annotation was computed. [2022-11-03 04:10:59,060 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 727 756) no Hoare annotation was computed. [2022-11-03 04:10:59,060 INFO L902 garLoopResultBuilder]: At program point L737-2(lines 737 751) the Hoare annotation is: true [2022-11-03 04:10:59,060 INFO L902 garLoopResultBuilder]: At program point L733(line 733) the Hoare annotation is: true [2022-11-03 04:10:59,060 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 727 756) the Hoare annotation is: true [2022-11-03 04:10:59,061 INFO L899 garLoopResultBuilder]: For program point L733-1(line 733) no Hoare annotation was computed. [2022-11-03 04:10:59,061 INFO L902 garLoopResultBuilder]: At program point L752(lines 727 756) the Hoare annotation is: true [2022-11-03 04:10:59,061 INFO L899 garLoopResultBuilder]: For program point L748(line 748) no Hoare annotation was computed. [2022-11-03 04:10:59,061 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 745) no Hoare annotation was computed. [2022-11-03 04:10:59,061 INFO L902 garLoopResultBuilder]: At program point L741-1(lines 741 745) the Hoare annotation is: true [2022-11-03 04:10:59,061 INFO L899 garLoopResultBuilder]: For program point L857(lines 857 863) no Hoare annotation was computed. [2022-11-03 04:10:59,062 INFO L895 garLoopResultBuilder]: At program point L127-1(lines 127 133) the Hoare annotation is: (let ((.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (and (or (not (= |old(~pumpRunning~0)| 1)) .cse1) (or .cse6 (not .cse1)))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse5 (= ~pumpRunning~0 1)) (.cse7 (= ~pumpRunning~0 0))) (and (or .cse0 (not (<= |old(~waterLevel~0)| 1)) .cse1 (and (let ((.cse2 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse2) .cse3) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2))) .cse4 .cse5)) (let ((.cse8 (= ~switchedOnBeforeTS~0 0))) (or .cse6 (and .cse7 .cse3 .cse1 .cse4) (and (= |timeShift_processEnvironment_~tmp~0#1| 0) (<= ~waterLevel~0 1) .cse3 .cse4 .cse8) (not (< |old(~waterLevel~0)| 3)) (and (<= 2 |old(~waterLevel~0)|) (= |timeShift_processEnvironment_~tmp~0#1| 1) .cse3 .cse8 .cse5))) (or .cse0 (and (= ~waterLevel~0 1) .cse4 .cse5) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse7) (not (= |old(~waterLevel~0)| 2)))))) [2022-11-03 04:10:59,062 INFO L895 garLoopResultBuilder]: At program point L156(lines 156 164) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (let ((.cse1 (let ((.cse2 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse2) (or .cse0 (not .cse2)))))) (and (or .cse0 (= |timeShift_processEnvironment_~tmp~0#1| 1) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (and (or (= |timeShift_processEnvironment_~tmp~0#1| 0) (not (< ~waterLevel~0 2))) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (= ~switchedOnBeforeTS~0 0)) (not (< |old(~waterLevel~0)| 3))) (or .cse1 (not (<= |old(~waterLevel~0)| 1))) (or .cse1 (not (= |old(~waterLevel~0)| 2)))))) [2022-11-03 04:10:59,063 INFO L895 garLoopResultBuilder]: At program point L152(lines 152 169) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 (and .cse1 .cse2 (= ~switchedOnBeforeTS~0 0)) (not (<= |old(~waterLevel~0)| 2))) (or (let ((.cse3 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse3) (or .cse0 (not .cse3)))) (not (< |old(~waterLevel~0)| 3)) (and (let ((.cse4 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse4) .cse1) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse4))) .cse2 (= ~pumpRunning~0 1))))) [2022-11-03 04:10:59,063 INFO L895 garLoopResultBuilder]: At program point L854(line 854) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| ~waterLevel~0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (< |old(~waterLevel~0)| 3)))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 (and .cse1 (let ((.cse2 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse2) .cse3) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2))) .cse4 (= ~pumpRunning~0 1)) .cse5) (or (not (<= |old(~waterLevel~0)| 1)) .cse6 (and (= ~pumpRunning~0 0) .cse1 .cse3 .cse0 .cse4) (and (= |timeShift_processEnvironment_~tmp~0#1| 0) .cse1 .cse3 .cse4 (= ~switchedOnBeforeTS~0 0))) (or .cse6 .cse5 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-03 04:10:59,063 INFO L899 garLoopResultBuilder]: For program point L854-1(line 854) no Hoare annotation was computed. [2022-11-03 04:10:59,063 INFO L899 garLoopResultBuilder]: For program point L120-2(lines 116 138) no Hoare annotation was computed. [2022-11-03 04:10:59,064 INFO L895 garLoopResultBuilder]: At program point L839(line 839) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) (= 0 ~systemActive~0) (and .cse0 (= ~pumpRunning~0 1)) (not (< |old(~waterLevel~0)| 3))) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0) (not (<= |old(~waterLevel~0)| 2))))) [2022-11-03 04:10:59,064 INFO L895 garLoopResultBuilder]: At program point L839-1(line 839) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__2_#t~ret44#1|)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 (= ~pumpRunning~0 0) .cse1) .cse2) (or (not (= |old(~pumpRunning~0)| 1)) (= 0 ~systemActive~0) (and .cse0 .cse1 (= ~pumpRunning~0 1)) .cse2))) [2022-11-03 04:10:59,064 INFO L895 garLoopResultBuilder]: At program point L162(line 162) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (let ((.cse1 (let ((.cse2 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse2) (or .cse0 (not .cse2)))))) (and (or .cse0 (and (= |timeShift_processEnvironment_~tmp~0#1| 0) (<= ~waterLevel~0 1) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (= ~switchedOnBeforeTS~0 0)) (not (< |old(~waterLevel~0)| 3))) (or .cse1 (not (<= |old(~waterLevel~0)| 1))) (or .cse1 (not (= |old(~waterLevel~0)| 2)))))) [2022-11-03 04:10:59,064 INFO L895 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (let ((.cse1 (let ((.cse2 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse2) (or .cse0 (not .cse2)))))) (and (or .cse0 (not (< |old(~waterLevel~0)| 3))) (or .cse1 (not (<= |old(~waterLevel~0)| 1))) (or .cse1 (not (= |old(~waterLevel~0)| 2)))))) [2022-11-03 04:10:59,065 INFO L899 garLoopResultBuilder]: For program point L856(lines 856 866) no Hoare annotation was computed. [2022-11-03 04:10:59,065 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 869) no Hoare annotation was computed. [2022-11-03 04:10:59,065 INFO L895 garLoopResultBuilder]: At program point L852-1(lines 844 872) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0))) (let ((.cse1 (= ~pumpRunning~0 0)) (.cse15 (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (.cse2 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| ~waterLevel~0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not .cse4))) (let ((.cse9 (not (<= |old(~waterLevel~0)| 2))) (.cse10 (not (<= 2 |old(~waterLevel~0)|))) (.cse6 (= ~switchedOnBeforeTS~0 0)) (.cse11 (and (or (not (= |old(~pumpRunning~0)| 1)) .cse4) (or .cse0 .cse7))) (.cse13 (not (<= |old(~waterLevel~0)| 1))) (.cse14 (and .cse1 .cse15 (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| |old(~pumpRunning~0)|) (<= ~waterLevel~0 1) .cse2 .cse3 .cse4 .cse5)) (.cse8 (= ~pumpRunning~0 1)) (.cse12 (not .cse15))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse2 (= |timeShift_processEnvironment_~tmp~0#1| 1) .cse3 .cse6 .cse7 .cse8) .cse9 .cse10) (or .cse11 (and .cse12 .cse2 (= ~waterLevel~0 1) .cse5 .cse8) .cse4 .cse9 .cse10) (or .cse13 .cse0 .cse14 (and (<= |timeShift_processEnvironment_~tmp~0#1| 0) .cse1 .cse15 .cse2 .cse3 .cse6 (< 0 (+ |timeShift_processEnvironment_~tmp~0#1| 1)))) (or .cse11 .cse13 .cse14 (and .cse2 (let ((.cse16 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse16) .cse3) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse16))) .cse5 .cse8 (or .cse12 (<= |old(~waterLevel~0)| ~waterLevel~0)))))))) [2022-11-03 04:10:59,065 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 113 139) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) (= 0 ~systemActive~0) (and .cse0 (= ~pumpRunning~0 1)) (not (< |old(~waterLevel~0)| 3))) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0) (not (<= |old(~waterLevel~0)| 2))))) [2022-11-03 04:10:59,066 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 113 139) no Hoare annotation was computed. [2022-11-03 04:10:59,066 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2022-11-03 04:10:59,066 INFO L895 garLoopResultBuilder]: At program point L167(line 167) the Hoare annotation is: (let ((.cse4 (not (= |old(~pumpRunning~0)| 0)))) (let ((.cse0 (let ((.cse5 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse5) (or .cse4 (not .cse5))))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1))) (and (or .cse0 (not (<= |old(~waterLevel~0)| 1)) (and (let ((.cse1 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse1) (= |old(~waterLevel~0)| ~waterLevel~0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse1))) .cse2 .cse3)) (or .cse4 (not (< |old(~waterLevel~0)| 3))) (or .cse0 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|)))))) [2022-11-03 04:10:59,066 INFO L895 garLoopResultBuilder]: At program point L167-1(lines 148 172) the Hoare annotation is: (let ((.cse6 (not (= |old(~pumpRunning~0)| 0)))) (let ((.cse1 (not (<= |old(~waterLevel~0)| 1))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= ~switchedOnBeforeTS~0 0)) (.cse0 (let ((.cse9 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse9) (or .cse6 (not .cse9))))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse5 (= ~pumpRunning~0 1)) (.cse8 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (and (let ((.cse2 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse2) .cse3) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2))) .cse4 .cse5)) (or .cse1 .cse6 (and (= |timeShift_processEnvironment_~tmp~0#1| 0) .cse3 .cse4 .cse7)) (or .cse6 (and (= |timeShift_processEnvironment_~tmp~0#1| 1) .cse3 .cse7 .cse5) (not (< |old(~waterLevel~0)| 3)) .cse8) (or .cse0 (and (= ~waterLevel~0 1) .cse4 .cse5) (not (<= |old(~waterLevel~0)| 2)) .cse8)))) [2022-11-03 04:10:59,067 INFO L895 garLoopResultBuilder]: At program point L717(lines 666 718) the Hoare annotation is: false [2022-11-03 04:10:59,067 INFO L895 garLoopResultBuilder]: At program point L705-2(lines 697 712) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (< ~waterLevel~0 3) (let ((.cse1 (= 0 ~systemActive~0))) (or (and (not .cse1) (= ~pumpRunning~0 1)) (and .cse2 .cse1)))) (and .cse2 .cse0 (<= ~waterLevel~0 2) (= ~switchedOnBeforeTS~0 0)))) [2022-11-03 04:10:59,067 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 04:10:59,067 INFO L899 garLoopResultBuilder]: For program point L668(lines 667 716) no Hoare annotation was computed. [2022-11-03 04:10:59,067 INFO L895 garLoopResultBuilder]: At program point L689(line 689) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse3 (not (= 0 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse5 (= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (= ~switchedOnBeforeTS~0 0)) (and .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) [2022-11-03 04:10:59,068 INFO L895 garLoopResultBuilder]: At program point L714(lines 667 716) the Hoare annotation is: (let ((.cse1 (not (= 0 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 1)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= 2 ~waterLevel~0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (<= ~waterLevel~0 0) .cse1 .cse2) (and .cse3 (<= ~waterLevel~0 1) .cse0 (= ~switchedOnBeforeTS~0 0)) (and .cse0 (= ~waterLevel~0 1) .cse1 .cse2) (and .cse4 .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) [2022-11-03 04:10:59,068 INFO L899 garLoopResultBuilder]: For program point L677(lines 677 683) no Hoare annotation was computed. [2022-11-03 04:10:59,068 INFO L899 garLoopResultBuilder]: For program point L677-1(lines 677 683) no Hoare annotation was computed. [2022-11-03 04:10:59,068 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 04:10:59,068 INFO L895 garLoopResultBuilder]: At program point L810(lines 810 817) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (= ~switchedOnBeforeTS~0 0)) [2022-11-03 04:10:59,068 INFO L902 garLoopResultBuilder]: At program point L810-2(lines 810 817) the Hoare annotation is: true [2022-11-03 04:10:59,069 INFO L902 garLoopResultBuilder]: At program point L720(lines 657 724) the Hoare annotation is: true [2022-11-03 04:10:59,069 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 693) no Hoare annotation was computed. [2022-11-03 04:10:59,069 INFO L895 garLoopResultBuilder]: At program point L687-1(lines 687 693) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse3 (not (= 0 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse5 (= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (= ~switchedOnBeforeTS~0 0)) (and .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) [2022-11-03 04:10:59,069 INFO L895 garLoopResultBuilder]: At program point L679(line 679) the Hoare annotation is: (let ((.cse1 (not (= 0 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (<= ~waterLevel~0 0) .cse1 .cse2) (and (or (and (= 2 ~waterLevel~0) .cse0) (and .cse0 (= ~waterLevel~0 1))) .cse1 .cse2) (and (= ~pumpRunning~0 0) .cse0 (<= ~waterLevel~0 2) (= ~switchedOnBeforeTS~0 0)))) [2022-11-03 04:10:59,069 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 888 899) no Hoare annotation was computed. [2022-11-03 04:10:59,070 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 888 899) the Hoare annotation is: (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2) (or (not (= ~pumpRunning~0 1)) .cse2 (= 0 ~systemActive~0) (not (<= |old(~waterLevel~0)| 2))) (or .cse0 (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2)) .cse1 (not (< |old(~waterLevel~0)| 3)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-03 04:10:59,070 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 200 208) no Hoare annotation was computed. [2022-11-03 04:10:59,070 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 200 208) the Hoare annotation is: true [2022-11-03 04:10:59,073 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:59,075 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 04:10:59,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:10:59 BoogieIcfgContainer [2022-11-03 04:10:59,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 04:10:59,104 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 04:10:59,104 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 04:10:59,105 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 04:10:59,105 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:08:28" (3/4) ... [2022-11-03 04:10:59,108 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 04:10:59,113 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 04:10:59,114 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 04:10:59,114 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 04:10:59,114 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 04:10:59,114 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 04:10:59,115 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-03 04:10:59,120 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2022-11-03 04:10:59,121 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-03 04:10:59,122 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-03 04:10:59,122 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 04:10:59,122 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 04:10:59,123 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 04:10:59,123 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 04:10:59,157 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || ((pumpRunning == aux-isPumpRunning()-aux && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) || ((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) [2022-11-03 04:10:59,157 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) <= 1)) || 0 == systemActive) || ((((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && ((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && \old(waterLevel) == waterLevel) && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || ((((tmp == 0 && waterLevel <= 1) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && switchedOnBeforeTS == 0)) || !(\old(waterLevel) < 3)) || ((((2 <= \old(waterLevel) && tmp == 1) && \old(waterLevel) == waterLevel) && switchedOnBeforeTS == 0) && pumpRunning == 1))) && (((((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || !(\old(waterLevel) == 2)) [2022-11-03 04:10:59,162 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel) && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || (((((tmp == waterLevel && tmp == 1) && \old(waterLevel) == waterLevel) && switchedOnBeforeTS == 0) && !(0 == systemActive)) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((((((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || ((((!(tmp___0 == 0) && tmp == waterLevel) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (((((((pumpRunning == 0 && tmp___0 == 0) && tmp___0 == \old(pumpRunning)) && waterLevel <= 1) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || ((((((tmp <= 0 && pumpRunning == 0) && tmp___0 == 0) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && switchedOnBeforeTS == 0) && 0 < tmp + 1))) && (((((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) <= 1)) || (((((((pumpRunning == 0 && tmp___0 == 0) && tmp___0 == \old(pumpRunning)) && waterLevel <= 1) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || ((((tmp == waterLevel && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1) && (!(tmp___0 == 0) || \old(waterLevel) <= waterLevel))) [2022-11-03 04:10:59,163 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || ((\old(waterLevel) == waterLevel && pumpRunning == switchedOnBeforeTS) && switchedOnBeforeTS == 0)) || !(\old(waterLevel) <= 2)) && ((((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) < 3)) || ((((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) [2022-11-03 04:10:59,163 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) <= 1))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) == 2)) [2022-11-03 04:10:59,164 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) <= 1)) || ((((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (((tmp == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && switchedOnBeforeTS == 0))) && (((!(\old(pumpRunning) == 0) || (((tmp == 1 && \old(waterLevel) == waterLevel) && switchedOnBeforeTS == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-03 04:10:59,164 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || tmp == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || ((((tmp == 0 || !(waterLevel < 2)) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && switchedOnBeforeTS == 0)) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) <= 1))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) == 2)) [2022-11-03 04:10:59,201 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 04:10:59,202 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 04:10:59,202 INFO L158 Benchmark]: Toolchain (without parser) took 152113.24ms. Allocated memory was 127.9MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 93.5MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. [2022-11-03 04:10:59,203 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 55.0MB in the beginning and 54.9MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:10:59,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 580.22ms. Allocated memory is still 127.9MB. Free memory was 93.3MB in the beginning and 96.4MB in the end (delta: -3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 04:10:59,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.79ms. Allocated memory is still 127.9MB. Free memory was 96.4MB in the beginning and 94.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 04:10:59,203 INFO L158 Benchmark]: Boogie Preprocessor took 49.99ms. Allocated memory is still 127.9MB. Free memory was 94.0MB in the beginning and 92.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 04:10:59,204 INFO L158 Benchmark]: RCFGBuilder took 842.52ms. Allocated memory is still 127.9MB. Free memory was 92.3MB in the beginning and 62.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-03 04:10:59,205 INFO L158 Benchmark]: TraceAbstraction took 150480.15ms. Allocated memory was 127.9MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 62.5MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 780.0MB. Max. memory is 16.1GB. [2022-11-03 04:10:59,205 INFO L158 Benchmark]: Witness Printer took 97.36ms. Allocated memory is still 1.3GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 04:10:59,210 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 55.0MB in the beginning and 54.9MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 580.22ms. Allocated memory is still 127.9MB. Free memory was 93.3MB in the beginning and 96.4MB in the end (delta: -3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.79ms. Allocated memory is still 127.9MB. Free memory was 96.4MB in the beginning and 94.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.99ms. Allocated memory is still 127.9MB. Free memory was 94.0MB in the beginning and 92.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 842.52ms. Allocated memory is still 127.9MB. Free memory was 92.3MB in the beginning and 62.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 150480.15ms. Allocated memory was 127.9MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 62.5MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 780.0MB. Max. memory is 16.1GB. * Witness Printer took 97.36ms. Allocated memory is still 1.3GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 92]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 150.4s, OverallIterations: 11, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 24.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 22.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5497 SdHoareTripleChecker+Valid, 9.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5454 mSDsluCounter, 5282 SdHoareTripleChecker+Invalid, 7.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5620 mSDsCounter, 4199 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10606 IncrementalHoareTripleChecker+Invalid, 14805 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4199 mSolverCounterUnsat, 760 mSDtfsCounter, 10606 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2134 GetRequests, 1390 SyntacticMatches, 35 SemanticMatches, 709 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26316 ImplicationChecksByTransitivity, 46.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1071occurred in iteration=7, InterpolantAutomatonStates: 439, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 1513 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 3209 PreInvPairs, 3607 NumberOfFragments, 1457 HoareAnnotationTreeSize, 3209 FomulaSimplifications, 165950 FormulaSimplificationTreeSizeReduction, 11.5s HoareSimplificationTime, 31 FomulaSimplificationsInter, 219119 FormulaSimplificationTreeSizeReductionInter, 10.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 1134 NumberOfCodeBlocks, 1117 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1616 ConstructedInterpolants, 0 QuantifiedInterpolants, 7018 SizeOfPredicates, 89 NumberOfNonLiveVariables, 3095 ConjunctsInSsa, 231 ConjunctsInUnsatCore, 23 InterpolantComputations, 5 PerfectInterpolantSequences, 1643/2056 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 810]: Loop Invariant Derived loop invariant: ((1 == systemActive && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && switchedOnBeforeTS == 0 - InvariantResult [Line: 666]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 810]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) <= 1)) || ((((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (((tmp == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && switchedOnBeforeTS == 0))) && (((!(\old(pumpRunning) == 0) || (((tmp == 1 && \old(waterLevel) == waterLevel) && switchedOnBeforeTS == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && waterLevel <= 0) && !(0 == systemActive)) && pumpRunning == 1) || (((pumpRunning == 0 && waterLevel <= 1) && splverifierCounter == 0) && switchedOnBeforeTS == 0)) || (((splverifierCounter == 0 && waterLevel == 1) && !(0 == systemActive)) && pumpRunning == 1)) || (((2 == waterLevel && splverifierCounter == 0) && !(0 == systemActive)) && pumpRunning == 1)) || (((pumpRunning == 0 && 2 == waterLevel) && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS) - InvariantResult [Line: 737]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel) && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || (((((tmp == waterLevel && tmp == 1) && \old(waterLevel) == waterLevel) && switchedOnBeforeTS == 0) && !(0 == systemActive)) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((((((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || ((((!(tmp___0 == 0) && tmp == waterLevel) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (((((((pumpRunning == 0 && tmp___0 == 0) && tmp___0 == \old(pumpRunning)) && waterLevel <= 1) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || ((((((tmp <= 0 && pumpRunning == 0) && tmp___0 == 0) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && switchedOnBeforeTS == 0) && 0 < tmp + 1))) && (((((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) <= 1)) || (((((((pumpRunning == 0 && tmp___0 == 0) && tmp___0 == \old(pumpRunning)) && waterLevel <= 1) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || ((((tmp == waterLevel && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1) && (!(tmp___0 == 0) || \old(waterLevel) <= waterLevel))) - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || tmp == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || ((((tmp == 0 || !(waterLevel < 2)) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && switchedOnBeforeTS == 0)) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) <= 1))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) == 2)) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || ((\old(waterLevel) == waterLevel && pumpRunning == switchedOnBeforeTS) && switchedOnBeforeTS == 0)) || !(\old(waterLevel) <= 2)) && ((((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) < 3)) || ((((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || ((pumpRunning == aux-isPumpRunning()-aux && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) || ((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 657]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 727]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) <= 1))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) == 2)) - InvariantResult [Line: 687]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && waterLevel <= 1) && splverifierCounter == 0) && switchedOnBeforeTS == 0) || (((waterLevel <= 1 && splverifierCounter == 0) && !(0 == systemActive)) && pumpRunning == 1)) || (((2 == waterLevel && splverifierCounter == 0) && !(0 == systemActive)) && pumpRunning == 1)) || (((pumpRunning == 0 && 2 == waterLevel) && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || !(\old(waterLevel) <= 1)) || 0 == systemActive) || ((((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && ((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && \old(waterLevel) == waterLevel) && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || ((((tmp == 0 && waterLevel <= 1) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && switchedOnBeforeTS == 0)) || !(\old(waterLevel) < 3)) || ((((2 <= \old(waterLevel) && tmp == 1) && \old(waterLevel) == waterLevel) && switchedOnBeforeTS == 0) && pumpRunning == 1))) && (((((!(\old(pumpRunning) == 1) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || !(\old(waterLevel) == 2)) RESULT: Ultimate proved your program to be correct! [2022-11-03 04:10:59,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bcca86-8234-4454-a3df-ad65b33ff99c/bin/utaipan-7li7fVZpFI/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