./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 592117a566b45deb7ab0407540eecbf2be0f732724f0529483f85e7a6864867a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:28:26,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:28:26,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:28:26,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:28:26,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:28:26,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:28:26,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:28:26,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:28:26,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:28:26,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:28:26,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:28:26,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:28:26,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:28:26,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:28:26,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:28:26,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:28:26,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:28:26,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:28:26,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:28:26,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:28:26,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:28:26,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:28:26,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:28:26,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:28:26,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:28:26,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:28:26,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:28:26,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:28:26,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:28:26,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:28:26,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:28:26,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:28:26,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:28:26,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:28:26,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:28:26,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:28:26,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:28:26,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:28:26,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:28:26,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:28:26,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:28:26,619 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:28:26,645 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:28:26,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:28:26,646 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:28:26,646 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:28:26,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:28:26,648 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:28:26,648 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:28:26,648 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:28:26,649 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:28:26,649 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:28:26,649 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:28:26,650 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:28:26,650 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:28:26,650 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:28:26,650 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:28:26,651 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:28:26,651 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:28:26,651 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:28:26,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:28:26,652 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:28:26,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:28:26,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:28:26,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:28:26,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:28:26,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:28:26,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:28:26,654 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:28:26,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:28:26,654 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:28:26,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:28:26,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:28:26,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:28:26,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:28:26,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:28:26,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:28:26,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:28:26,656 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:28:26,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:28:26,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:28:26,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:28:26,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:28:26,658 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 592117a566b45deb7ab0407540eecbf2be0f732724f0529483f85e7a6864867a [2021-11-23 02:28:26,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:28:27,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:28:27,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:28:27,006 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:28:27,007 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:28:27,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c [2021-11-23 02:28:27,094 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/data/8501991f8/5149de79a75843ec81480709cbc07f70/FLAG0dc0da54b [2021-11-23 02:28:27,684 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:28:27,688 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c [2021-11-23 02:28:27,712 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/data/8501991f8/5149de79a75843ec81480709cbc07f70/FLAG0dc0da54b [2021-11-23 02:28:27,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/data/8501991f8/5149de79a75843ec81480709cbc07f70 [2021-11-23 02:28:27,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:28:27,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:28:27,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:28:27,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:28:27,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:28:27,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:28:27" (1/1) ... [2021-11-23 02:28:27,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3234c6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:27, skipping insertion in model container [2021-11-23 02:28:27,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:28:27" (1/1) ... [2021-11-23 02:28:27,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:28:28,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:28:28,368 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_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c[19185,19198] [2021-11-23 02:28:28,371 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:28:28,380 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:28:28,498 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_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c[19185,19198] [2021-11-23 02:28:28,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:28:28,533 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:28:28,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:28 WrapperNode [2021-11-23 02:28:28,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:28:28,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:28:28,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:28:28,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:28:28,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:28" (1/1) ... [2021-11-23 02:28:28,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:28" (1/1) ... [2021-11-23 02:28:28,619 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 271 [2021-11-23 02:28:28,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:28:28,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:28:28,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:28:28,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:28:28,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:28" (1/1) ... [2021-11-23 02:28:28,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:28" (1/1) ... [2021-11-23 02:28:28,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:28" (1/1) ... [2021-11-23 02:28:28,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:28" (1/1) ... [2021-11-23 02:28:28,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:28" (1/1) ... [2021-11-23 02:28:28,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:28" (1/1) ... [2021-11-23 02:28:28,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:28" (1/1) ... [2021-11-23 02:28:28,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:28:28,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:28:28,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:28:28,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:28:28,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:28" (1/1) ... [2021-11-23 02:28:28,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:28:28,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:28:28,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:28:28,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:28:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:28:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 02:28:28,792 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 02:28:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 02:28:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 02:28:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-23 02:28:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-23 02:28:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 02:28:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 02:28:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:28:28,794 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:28:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 02:28:28,794 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 02:28:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 02:28:28,795 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 02:28:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-23 02:28:28,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-23 02:28:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-23 02:28:28,795 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-23 02:28:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:28:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 02:28:28,796 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 02:28:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:28:28,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:28:28,918 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:28:28,920 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:28:29,245 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:28:29,412 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:28:29,412 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 02:28:29,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:28:29 BoogieIcfgContainer [2021-11-23 02:28:29,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:28:29,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:28:29,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:28:29,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:28:29,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:28:27" (1/3) ... [2021-11-23 02:28:29,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c78cbca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:28:29, skipping insertion in model container [2021-11-23 02:28:29,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:28" (2/3) ... [2021-11-23 02:28:29,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c78cbca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:28:29, skipping insertion in model container [2021-11-23 02:28:29,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:28:29" (3/3) ... [2021-11-23 02:28:29,429 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2021-11-23 02:28:29,436 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:28:29,436 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:28:29,508 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:28:29,518 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:28:29,519 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:28:29,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 54 states have internal predecessors, (61), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-23 02:28:29,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 02:28:29,563 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:29,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:29,564 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:29,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:29,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1405484699, now seen corresponding path program 1 times [2021-11-23 02:28:29,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:28:29,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835768183] [2021-11-23 02:28:29,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:29,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:28:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:29,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:29,785 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:28:29,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835768183] [2021-11-23 02:28:29,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835768183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:29,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:29,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:28:29,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491173418] [2021-11-23 02:28:29,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:29,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:28:29,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:28:29,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:28:29,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:28:29,828 INFO L87 Difference]: Start difference. First operand has 74 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 54 states have internal predecessors, (61), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:28:29,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:29,938 INFO L93 Difference]: Finished difference Result 146 states and 195 transitions. [2021-11-23 02:28:29,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:28:29,941 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-11-23 02:28:29,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:29,955 INFO L225 Difference]: With dead ends: 146 [2021-11-23 02:28:29,955 INFO L226 Difference]: Without dead ends: 69 [2021-11-23 02:28:29,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:28:29,967 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:29,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:28:29,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-23 02:28:30,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-23 02:28:30,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 50 states have internal predecessors, (53), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2021-11-23 02:28:30,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2021-11-23 02:28:30,033 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 16 [2021-11-23 02:28:30,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:30,034 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2021-11-23 02:28:30,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:28:30,035 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2021-11-23 02:28:30,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 02:28:30,040 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:30,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:30,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:28:30,041 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:30,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:30,043 INFO L85 PathProgramCache]: Analyzing trace with hash -202993795, now seen corresponding path program 1 times [2021-11-23 02:28:30,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:28:30,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502145084] [2021-11-23 02:28:30,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:30,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:28:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:30,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:30,179 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:28:30,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502145084] [2021-11-23 02:28:30,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502145084] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:30,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:30,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:28:30,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791039309] [2021-11-23 02:28:30,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:30,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:28:30,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:28:30,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:28:30,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:28:30,191 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:28:30,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:30,278 INFO L93 Difference]: Finished difference Result 115 states and 147 transitions. [2021-11-23 02:28:30,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:28:30,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-11-23 02:28:30,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:30,281 INFO L225 Difference]: With dead ends: 115 [2021-11-23 02:28:30,281 INFO L226 Difference]: Without dead ends: 61 [2021-11-23 02:28:30,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:28:30,284 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 7 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:30,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 115 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:28:30,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-23 02:28:30,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-11-23 02:28:30,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 45 states have internal predecessors, (47), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-23 02:28:30,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2021-11-23 02:28:30,295 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 17 [2021-11-23 02:28:30,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:30,296 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2021-11-23 02:28:30,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:28:30,296 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2021-11-23 02:28:30,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 02:28:30,298 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:30,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:30,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:28:30,298 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:30,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:30,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1432553358, now seen corresponding path program 1 times [2021-11-23 02:28:30,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:28:30,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478032090] [2021-11-23 02:28:30,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:30,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:28:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:30,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:30,387 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:28:30,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478032090] [2021-11-23 02:28:30,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478032090] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:30,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:30,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:28:30,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528478640] [2021-11-23 02:28:30,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:30,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:28:30,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:28:30,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:28:30,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:28:30,391 INFO L87 Difference]: Start difference. First operand 61 states and 77 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:28:30,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:30,503 INFO L93 Difference]: Finished difference Result 120 states and 153 transitions. [2021-11-23 02:28:30,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:28:30,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-11-23 02:28:30,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:30,505 INFO L225 Difference]: With dead ends: 120 [2021-11-23 02:28:30,506 INFO L226 Difference]: Without dead ends: 61 [2021-11-23 02:28:30,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:28:30,508 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 72 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:30,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 81 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:28:30,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-23 02:28:30,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-11-23 02:28:30,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 45 states have internal predecessors, (46), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-23 02:28:30,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2021-11-23 02:28:30,522 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 19 [2021-11-23 02:28:30,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:30,522 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2021-11-23 02:28:30,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:28:30,523 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2021-11-23 02:28:30,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 02:28:30,525 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:30,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:30,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:28:30,525 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:30,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:30,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1581525674, now seen corresponding path program 1 times [2021-11-23 02:28:30,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:28:30,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118377601] [2021-11-23 02:28:30,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:30,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:28:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:30,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:30,671 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:28:30,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118377601] [2021-11-23 02:28:30,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118377601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:30,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:30,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:28:30,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007901879] [2021-11-23 02:28:30,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:30,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:28:30,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:28:30,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:28:30,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:28:30,674 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2021-11-23 02:28:30,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:30,996 INFO L93 Difference]: Finished difference Result 190 states and 234 transitions. [2021-11-23 02:28:30,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:28:30,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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 [2021-11-23 02:28:30,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:31,004 INFO L225 Difference]: With dead ends: 190 [2021-11-23 02:28:31,004 INFO L226 Difference]: Without dead ends: 131 [2021-11-23 02:28:31,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:28:31,015 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 122 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:31,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 173 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:28:31,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-23 02:28:31,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 125. [2021-11-23 02:28:31,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 87 states have internal predecessors, (95), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2021-11-23 02:28:31,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2021-11-23 02:28:31,055 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 30 [2021-11-23 02:28:31,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:31,056 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2021-11-23 02:28:31,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2021-11-23 02:28:31,056 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2021-11-23 02:28:31,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 02:28:31,058 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:31,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:31,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:28:31,063 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:31,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:31,066 INFO L85 PathProgramCache]: Analyzing trace with hash -239096315, now seen corresponding path program 1 times [2021-11-23 02:28:31,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:28:31,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600315041] [2021-11-23 02:28:31,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:31,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:28:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:31,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:31,231 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:28:31,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600315041] [2021-11-23 02:28:31,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600315041] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:31,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:31,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:28:31,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072510458] [2021-11-23 02:28:31,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:31,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:28:31,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:28:31,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:28:31,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:28:31,241 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 02:28:31,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:31,498 INFO L93 Difference]: Finished difference Result 137 states and 158 transitions. [2021-11-23 02:28:31,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 02:28:31,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2021-11-23 02:28:31,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:31,504 INFO L225 Difference]: With dead ends: 137 [2021-11-23 02:28:31,504 INFO L226 Difference]: Without dead ends: 135 [2021-11-23 02:28:31,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:28:31,508 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 76 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:31,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 176 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:28:31,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-23 02:28:31,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 125. [2021-11-23 02:28:31,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 79 states have (on average 1.1772151898734178) internal successors, (93), 87 states have internal predecessors, (93), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2021-11-23 02:28:31,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 144 transitions. [2021-11-23 02:28:31,546 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 144 transitions. Word has length 35 [2021-11-23 02:28:31,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:31,547 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 144 transitions. [2021-11-23 02:28:31,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 02:28:31,547 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 144 transitions. [2021-11-23 02:28:31,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 02:28:31,553 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:31,553 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:31,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:28:31,553 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:31,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:31,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1551780452, now seen corresponding path program 1 times [2021-11-23 02:28:31,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:28:31,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297406839] [2021-11-23 02:28:31,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:31,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:28:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:31,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:28:31,704 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:28:31,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297406839] [2021-11-23 02:28:31,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297406839] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:31,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:31,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:28:31,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135594677] [2021-11-23 02:28:31,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:31,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:28:31,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:28:31,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:28:31,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:28:31,707 INFO L87 Difference]: Start difference. First operand 125 states and 144 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-11-23 02:28:31,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:31,925 INFO L93 Difference]: Finished difference Result 305 states and 355 transitions. [2021-11-23 02:28:31,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:28:31,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 40 [2021-11-23 02:28:31,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:31,928 INFO L225 Difference]: With dead ends: 305 [2021-11-23 02:28:31,928 INFO L226 Difference]: Without dead ends: 182 [2021-11-23 02:28:31,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:28:31,930 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 79 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:31,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 315 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:28:31,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-11-23 02:28:31,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 164. [2021-11-23 02:28:31,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 105 states have (on average 1.161904761904762) internal successors, (122), 114 states have internal predecessors, (122), 28 states have call successors, (28), 25 states have call predecessors, (28), 30 states have return successors, (35), 30 states have call predecessors, (35), 28 states have call successors, (35) [2021-11-23 02:28:31,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 185 transitions. [2021-11-23 02:28:31,960 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 185 transitions. Word has length 40 [2021-11-23 02:28:31,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:31,961 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 185 transitions. [2021-11-23 02:28:31,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-11-23 02:28:31,961 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 185 transitions. [2021-11-23 02:28:31,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 02:28:31,962 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:31,963 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:31,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:28:31,963 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:31,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:31,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1871851049, now seen corresponding path program 1 times [2021-11-23 02:28:31,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:28:31,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861374510] [2021-11-23 02:28:31,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:31,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:28:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:28:32,216 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:28:32,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861374510] [2021-11-23 02:28:32,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861374510] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:32,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:32,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-23 02:28:32,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793801043] [2021-11-23 02:28:32,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:32,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-23 02:28:32,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:28:32,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 02:28:32,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-23 02:28:32,220 INFO L87 Difference]: Start difference. First operand 164 states and 185 transitions. Second operand has 13 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 4 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-23 02:28:33,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:33,263 INFO L93 Difference]: Finished difference Result 414 states and 515 transitions. [2021-11-23 02:28:33,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-23 02:28:33,264 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 4 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 43 [2021-11-23 02:28:33,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:33,267 INFO L225 Difference]: With dead ends: 414 [2021-11-23 02:28:33,268 INFO L226 Difference]: Without dead ends: 289 [2021-11-23 02:28:33,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=267, Invalid=993, Unknown=0, NotChecked=0, Total=1260 [2021-11-23 02:28:33,270 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 344 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:33,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 340 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 02:28:33,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-23 02:28:33,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 220. [2021-11-23 02:28:33,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 140 states have (on average 1.1642857142857144) internal successors, (163), 152 states have internal predecessors, (163), 39 states have call successors, (39), 33 states have call predecessors, (39), 40 states have return successors, (50), 41 states have call predecessors, (50), 39 states have call successors, (50) [2021-11-23 02:28:33,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 252 transitions. [2021-11-23 02:28:33,311 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 252 transitions. Word has length 43 [2021-11-23 02:28:33,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:33,312 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 252 transitions. [2021-11-23 02:28:33,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 4 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-23 02:28:33,312 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 252 transitions. [2021-11-23 02:28:33,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-23 02:28:33,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:33,320 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:33,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:28:33,321 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:33,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:33,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1568526097, now seen corresponding path program 1 times [2021-11-23 02:28:33,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:28:33,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319282778] [2021-11-23 02:28:33,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:33,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:28:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 02:28:33,460 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:28:33,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319282778] [2021-11-23 02:28:33,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319282778] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:33,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:33,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-23 02:28:33,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817980799] [2021-11-23 02:28:33,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:33,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 02:28:33,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:28:33,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 02:28:33,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:28:33,466 INFO L87 Difference]: Start difference. First operand 220 states and 252 transitions. Second operand has 10 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 02:28:33,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:33,839 INFO L93 Difference]: Finished difference Result 593 states and 696 transitions. [2021-11-23 02:28:33,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-23 02:28:33,840 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2021-11-23 02:28:33,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:33,841 INFO L225 Difference]: With dead ends: 593 [2021-11-23 02:28:33,841 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:28:33,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2021-11-23 02:28:33,844 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 69 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:33,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 426 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:28:33,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:28:33,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:28:33,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:28:33,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:28:33,846 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2021-11-23 02:28:33,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:33,846 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:28:33,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 02:28:33,847 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:28:33,847 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:28:33,850 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:28:33,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:28:33,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:28:36,789 INFO L854 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 199 206) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~pumpRunning~0)| 0) (= 0 ~systemActive~0)) [2021-11-23 02:28:36,789 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 199 206) no Hoare annotation was computed. [2021-11-23 02:28:36,789 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 89 95) no Hoare annotation was computed. [2021-11-23 02:28:36,789 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 89 95) the Hoare annotation is: true [2021-11-23 02:28:36,790 INFO L854 garLoopResultBuilder]: At program point L137(line 137) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2021-11-23 02:28:36,790 INFO L854 garLoopResultBuilder]: At program point L133(line 133) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2021-11-23 02:28:36,790 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 139) no Hoare annotation was computed. [2021-11-23 02:28:36,790 INFO L854 garLoopResultBuilder]: At program point L127(lines 127 144) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2021-11-23 02:28:36,790 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 123 147) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2021-11-23 02:28:36,790 INFO L854 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not .cse0) (= ~pumpRunning~0 0) .cse1))) [2021-11-23 02:28:36,790 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 123 147) no Hoare annotation was computed. [2021-11-23 02:28:36,791 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 123 147) no Hoare annotation was computed. [2021-11-23 02:28:36,791 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 907 918) the Hoare annotation is: (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) (= 0 ~systemActive~0)) [2021-11-23 02:28:36,791 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 907 918) no Hoare annotation was computed. [2021-11-23 02:28:36,791 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 785 814) no Hoare annotation was computed. [2021-11-23 02:28:36,791 INFO L858 garLoopResultBuilder]: For program point L799(lines 799 803) no Hoare annotation was computed. [2021-11-23 02:28:36,791 INFO L861 garLoopResultBuilder]: At program point L799-1(lines 799 803) the Hoare annotation is: true [2021-11-23 02:28:36,791 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 785 814) the Hoare annotation is: true [2021-11-23 02:28:36,791 INFO L861 garLoopResultBuilder]: At program point L795-2(lines 795 809) the Hoare annotation is: true [2021-11-23 02:28:36,791 INFO L861 garLoopResultBuilder]: At program point L791(line 791) the Hoare annotation is: true [2021-11-23 02:28:36,792 INFO L858 garLoopResultBuilder]: For program point L791-1(line 791) no Hoare annotation was computed. [2021-11-23 02:28:36,792 INFO L861 garLoopResultBuilder]: At program point L810(lines 785 814) the Hoare annotation is: true [2021-11-23 02:28:36,792 INFO L858 garLoopResultBuilder]: For program point L806(line 806) no Hoare annotation was computed. [2021-11-23 02:28:36,792 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 919 927) the Hoare annotation is: true [2021-11-23 02:28:36,792 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 919 927) no Hoare annotation was computed. [2021-11-23 02:28:36,792 INFO L854 garLoopResultBuilder]: At program point L993(lines 993 1006) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse4 (= 0 ~systemActive~0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0))) (or (and .cse0 .cse1) (and .cse2 (<= 2 ~waterLevel~0)) (and .cse3 .cse0) .cse4 (and .cse3 .cse1 .cse2))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0)) (<= ~waterLevel~0 1) .cse4) (or (= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 0) (not .cse2) .cse4))) [2021-11-23 02:28:36,795 INFO L854 garLoopResultBuilder]: At program point L993-1(lines 985 1009) the Hoare annotation is: (let ((.cse1 (= 0 ~systemActive~0))) (let ((.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse5 (not .cse1))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (<= ~waterLevel~0 1) .cse1) (let ((.cse4 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 0))) (or (and .cse0 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse3 .cse4) (and .cse4 (<= 2 ~waterLevel~0)) (not .cse7) .cse1 (and .cse6 .cse2 .cse4 .cse5))) (or (and .cse6 .cse2 .cse5) .cse7 (and .cse0 .cse2 .cse3 .cse5) .cse1)))) [2021-11-23 02:28:36,795 INFO L854 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) .cse0) (or (not (= ~methaneLevelCritical~0 0)) .cse0))) [2021-11-23 02:28:36,796 INFO L854 garLoopResultBuilder]: At program point L155(line 155) the Hoare annotation is: (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0))) (= 0 ~systemActive~0)) [2021-11-23 02:28:36,796 INFO L858 garLoopResultBuilder]: For program point L155-1(line 155) no Hoare annotation was computed. [2021-11-23 02:28:36,796 INFO L854 garLoopResultBuilder]: At program point L168(line 168) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (<= |old(~waterLevel~0)| 1)) (<= ~waterLevel~0 1) .cse0) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0)) .cse0))) [2021-11-23 02:28:36,796 INFO L854 garLoopResultBuilder]: At program point L168-1(lines 149 173) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse2 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1) (and .cse2 (<= 2 ~waterLevel~0)) (and .cse3 .cse0) .cse4 (and .cse3 .cse1 .cse2))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0)) (<= ~waterLevel~0 1) .cse4))) [2021-11-23 02:28:36,796 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 68 87) no Hoare annotation was computed. [2021-11-23 02:28:36,800 INFO L854 garLoopResultBuilder]: At program point L1015(line 1015) the Hoare annotation is: (= 0 ~systemActive~0) [2021-11-23 02:28:36,801 INFO L854 garLoopResultBuilder]: At program point L991(line 991) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse2 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1) (and .cse2 (<= 2 ~waterLevel~0)) (and .cse3 .cse0) .cse4 (and .cse3 .cse1 .cse2))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0)) (<= ~waterLevel~0 1) .cse4))) [2021-11-23 02:28:36,801 INFO L858 garLoopResultBuilder]: For program point L991-1(line 991) no Hoare annotation was computed. [2021-11-23 02:28:36,801 INFO L858 garLoopResultBuilder]: For program point L157(lines 157 165) no Hoare annotation was computed. [2021-11-23 02:28:36,803 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 170) no Hoare annotation was computed. [2021-11-23 02:28:36,804 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 65 88) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (or (not (<= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0)) (<= ~waterLevel~0 1) .cse0))) [2021-11-23 02:28:36,804 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 76 82) no Hoare annotation was computed. [2021-11-23 02:28:36,805 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 65 88) no Hoare annotation was computed. [2021-11-23 02:28:36,805 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1015) no Hoare annotation was computed. [2021-11-23 02:28:36,805 INFO L858 garLoopResultBuilder]: For program point L997(lines 997 1003) no Hoare annotation was computed. [2021-11-23 02:28:36,805 INFO L854 garLoopResultBuilder]: At program point L163(line 163) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0) (= ~methaneLevelCritical~0 0))))) [2021-11-23 02:28:36,805 INFO L854 garLoopResultBuilder]: At program point L345(line 345) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~10#1| 1)) [2021-11-23 02:28:36,806 INFO L861 garLoopResultBuilder]: At program point L374(lines 313 378) the Hoare annotation is: true [2021-11-23 02:28:36,806 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 339) no Hoare annotation was computed. [2021-11-23 02:28:36,806 INFO L858 garLoopResultBuilder]: For program point L333-1(lines 333 339) no Hoare annotation was computed. [2021-11-23 02:28:36,806 INFO L854 garLoopResultBuilder]: At program point L866(lines 866 873) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0) (= |ULTIMATE.start_main_~tmp~10#1| 1)) [2021-11-23 02:28:36,806 INFO L861 garLoopResultBuilder]: At program point L866-2(lines 866 873) the Hoare annotation is: true [2021-11-23 02:28:36,807 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 02:28:36,807 INFO L854 garLoopResultBuilder]: At program point L371(lines 322 372) the Hoare annotation is: false [2021-11-23 02:28:36,807 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:28:36,807 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 349) no Hoare annotation was computed. [2021-11-23 02:28:36,808 INFO L854 garLoopResultBuilder]: At program point L343-1(lines 343 349) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~10#1| 1)) [2021-11-23 02:28:36,808 INFO L854 garLoopResultBuilder]: At program point L368(lines 323 370) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2))) [2021-11-23 02:28:36,808 INFO L854 garLoopResultBuilder]: At program point L335(line 335) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2))) [2021-11-23 02:28:36,808 INFO L854 garLoopResultBuilder]: At program point L361-2(lines 353 366) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~10#1| 1)) [2021-11-23 02:28:36,810 INFO L858 garLoopResultBuilder]: For program point L324(lines 323 370) no Hoare annotation was computed. [2021-11-23 02:28:36,810 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 97 121) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2021-11-23 02:28:36,810 INFO L854 garLoopResultBuilder]: At program point L116(line 116) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2021-11-23 02:28:36,810 INFO L858 garLoopResultBuilder]: For program point L116-1(lines 97 121) no Hoare annotation was computed. [2021-11-23 02:28:36,811 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 97 121) no Hoare annotation was computed. [2021-11-23 02:28:36,813 INFO L854 garLoopResultBuilder]: At program point L187(line 187) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not .cse0) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0)) .cse1))) [2021-11-23 02:28:36,813 INFO L854 garLoopResultBuilder]: At program point L187-1(line 187) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (let ((.cse2 (not .cse0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse2 (not (<= ~waterLevel~0 1)) .cse1) (or .cse2 .cse1 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_activatePump_#t~ret7#1| ~methaneLevelCritical~0)))))) [2021-11-23 02:28:36,813 INFO L854 garLoopResultBuilder]: At program point L111(line 111) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (let ((.cse2 (not .cse0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse2 (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0) (not (<= ~waterLevel~0 1)) .cse1) (or .cse2 (= ~pumpRunning~0 0) .cse1)))) [2021-11-23 02:28:36,813 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 113) no Hoare annotation was computed. [2021-11-23 02:28:36,814 INFO L854 garLoopResultBuilder]: At program point L101(lines 101 118) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2021-11-23 02:28:36,814 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 895 906) no Hoare annotation was computed. [2021-11-23 02:28:36,814 INFO L861 garLoopResultBuilder]: At program point waterRiseENTRY(lines 895 906) the Hoare annotation is: true [2021-11-23 02:28:36,814 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 207 217) the Hoare annotation is: true [2021-11-23 02:28:36,814 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 207 217) no Hoare annotation was computed. [2021-11-23 02:28:36,814 INFO L861 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: true [2021-11-23 02:28:36,815 INFO L858 garLoopResultBuilder]: For program point L212-1(line 212) no Hoare annotation was computed. [2021-11-23 02:28:36,824 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:36,825 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:28:36,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:28:36 BoogieIcfgContainer [2021-11-23 02:28:36,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:28:36,856 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:28:36,856 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:28:36,856 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:28:36,857 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:28:29" (3/4) ... [2021-11-23 02:28:36,873 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:28:36,878 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-11-23 02:28:36,878 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-23 02:28:36,878 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 02:28:36,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 02:28:36,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-11-23 02:28:36,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 02:28:36,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:28:36,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 02:28:36,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-11-23 02:28:36,880 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-11-23 02:28:36,902 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2021-11-23 02:28:36,902 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-11-23 02:28:36,903 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 02:28:36,904 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 02:28:36,905 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 02:28:36,905 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:28:36,906 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:28:36,935 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (pumpRunning == \old(pumpRunning) || 0 == systemActive) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive) [2021-11-23 02:28:36,939 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && tmp == methaneLevelCritical) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive) [2021-11-23 02:28:36,939 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2021-11-23 02:28:36,940 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((pumpRunning == 0 && tmp == methaneLevelCritical) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive)) && ((tmp == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive) [2021-11-23 02:28:36,941 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2021-11-23 02:28:36,941 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive) && (((((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == methaneLevelCritical) && tmp == 0) && !(0 == systemActive)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == 0)) || (tmp == 0 && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0) && !(0 == systemActive)))) && (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(0 == systemActive)) || methaneLevelCritical == 0) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == methaneLevelCritical) && !(0 == systemActive))) || 0 == systemActive) [2021-11-23 02:28:36,941 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(waterLevel <= 1)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || 0 == systemActive) || (pumpRunning == 0 && aux-isMethaneAlarm()-aux == methaneLevelCritical)) [2021-11-23 02:28:37,022 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:28:37,024 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:28:37,025 INFO L158 Benchmark]: Toolchain (without parser) took 9071.81ms. Allocated memory was 90.2MB in the beginning and 161.5MB in the end (delta: 71.3MB). Free memory was 56.1MB in the beginning and 133.0MB in the end (delta: -76.9MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. [2021-11-23 02:28:37,025 INFO L158 Benchmark]: CDTParser took 1.08ms. Allocated memory is still 90.2MB. Free memory was 46.7MB in the beginning and 46.7MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:28:37,026 INFO L158 Benchmark]: CACSL2BoogieTranslator took 576.50ms. Allocated memory is still 90.2MB. Free memory was 55.9MB in the beginning and 57.8MB in the end (delta: -1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 02:28:37,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.19ms. Allocated memory is still 90.2MB. Free memory was 57.8MB in the beginning and 55.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:28:37,027 INFO L158 Benchmark]: Boogie Preprocessor took 60.40ms. Allocated memory is still 90.2MB. Free memory was 55.0MB in the beginning and 53.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:28:37,027 INFO L158 Benchmark]: RCFGBuilder took 733.10ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 53.4MB in the beginning and 81.1MB in the end (delta: -27.7MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2021-11-23 02:28:37,028 INFO L158 Benchmark]: TraceAbstraction took 7436.66ms. Allocated memory was 109.1MB in the beginning and 161.5MB in the end (delta: 52.4MB). Free memory was 80.7MB in the beginning and 60.2MB in the end (delta: 20.4MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. [2021-11-23 02:28:37,029 INFO L158 Benchmark]: Witness Printer took 168.18ms. Allocated memory is still 161.5MB. Free memory was 60.2MB in the beginning and 133.0MB in the end (delta: -72.8MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-11-23 02:28:37,031 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08ms. Allocated memory is still 90.2MB. Free memory was 46.7MB in the beginning and 46.7MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 576.50ms. Allocated memory is still 90.2MB. Free memory was 55.9MB in the beginning and 57.8MB in the end (delta: -1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.19ms. Allocated memory is still 90.2MB. Free memory was 57.8MB in the beginning and 55.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.40ms. Allocated memory is still 90.2MB. Free memory was 55.0MB in the beginning and 53.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 733.10ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 53.4MB in the beginning and 81.1MB in the end (delta: -27.7MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7436.66ms. Allocated memory was 109.1MB in the beginning and 161.5MB in the end (delta: 52.4MB). Free memory was 80.7MB in the beginning and 60.2MB in the end (delta: 20.4MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. * Witness Printer took 168.18ms. Allocated memory is still 161.5MB. Free memory was 60.2MB in the beginning and 133.0MB in the end (delta: -72.8MB). Peak memory consumption was 5.9MB. 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: 1015]: 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 11 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.3s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 798 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 769 mSDsluCounter, 1702 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1409 mSDsCounter, 408 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1641 IncrementalHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 408 mSolverCounterUnsat, 546 mSDtfsCounter, 1641 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=220occurred in iteration=7, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 103 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 655 PreInvPairs, 794 NumberOfFragments, 796 HoareAnnotationTreeSize, 655 FomulaSimplifications, 707 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 43 FomulaSimplificationsInter, 10883 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 639 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 43/43 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: 149]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && tmp == methaneLevelCritical) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 785]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: (pumpRunning == \old(pumpRunning) || 0 == systemActive) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive) - InvariantResult [Line: 323]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && tmp == systemActive) && splverifierCounter == 0) && tmp == 1) || (((methaneLevelCritical == 0 && tmp == systemActive) && splverifierCounter == 0) && tmp == 1) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 795]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 985]: Loop Invariant Derived loop invariant: ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive) && (((((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == methaneLevelCritical) && tmp == 0) && !(0 == systemActive)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == 0)) || (tmp == 0 && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0) && !(0 == systemActive)))) && (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(0 == systemActive)) || methaneLevelCritical == 0) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == methaneLevelCritical) && !(0 == systemActive))) || 0 == systemActive) - InvariantResult [Line: 1015]: Loop Invariant Derived loop invariant: 0 == systemActive - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel <= 1) && tmp == systemActive) && tmp == 1 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: (((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(waterLevel <= 1)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || 0 == systemActive) || (pumpRunning == 0 && aux-isMethaneAlarm()-aux == methaneLevelCritical)) - InvariantResult [Line: 993]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0 && tmp == methaneLevelCritical) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive)) && ((tmp == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 343]: Loop Invariant Derived loop invariant: (tmp == systemActive && splverifierCounter == 0) && tmp == 1 - InvariantResult [Line: 322]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 313]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 02:28:37,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd2e7b5-2783-4dc2-84b5-fe111337d63c/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE