./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9f236da57fa92653d636674a80852c8106739bc443cbd0a5f898a694ed49c247 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:43:02,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:43:02,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:43:02,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:43:02,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:43:02,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:43:02,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:43:02,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:43:02,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:43:02,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:43:02,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:43:02,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:43:02,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:43:02,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:43:02,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:43:02,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:43:02,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:43:02,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:43:02,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:43:02,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:43:02,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:43:02,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:43:02,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:43:02,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:43:02,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:43:02,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:43:02,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:43:02,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:43:02,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:43:02,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:43:02,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:43:02,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:43:02,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:43:02,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:43:02,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:43:02,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:43:02,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:43:02,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:43:02,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:43:02,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:43:02,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:43:02,598 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:43:02,647 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:43:02,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:43:02,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:43:02,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:43:02,650 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:43:02,650 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:43:02,650 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:43:02,651 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:43:02,651 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:43:02,651 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:43:02,652 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:43:02,653 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:43:02,653 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:43:02,653 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:43:02,654 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:43:02,654 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:43:02,654 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:43:02,655 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:43:02,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:43:02,656 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:43:02,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:43:02,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:43:02,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:43:02,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:43:02,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:43:02,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:43:02,658 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:43:02,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:43:02,658 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:43:02,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:43:02,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:43:02,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:43:02,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:43:02,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:43:02,660 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:43:02,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:43:02,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:43:02,661 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:43:02,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:43:02,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:43:02,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:43:02,662 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f236da57fa92653d636674a80852c8106739bc443cbd0a5f898a694ed49c247 [2022-11-03 03:43:03,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:43:03,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:43:03,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:43:03,066 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:43:03,068 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:43:03,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec2_product28.cil.c [2022-11-03 03:43:03,160 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/data/6fd24ba75/4f78f8af9bcf4eecaffe1df5ac663ed5/FLAG9a411172a [2022-11-03 03:43:03,886 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:43:03,886 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/sv-benchmarks/c/product-lines/minepump_spec2_product28.cil.c [2022-11-03 03:43:03,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/data/6fd24ba75/4f78f8af9bcf4eecaffe1df5ac663ed5/FLAG9a411172a [2022-11-03 03:43:04,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/data/6fd24ba75/4f78f8af9bcf4eecaffe1df5ac663ed5 [2022-11-03 03:43:04,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:43:04,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:43:04,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:43:04,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:43:04,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:43:04,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e9ba8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04, skipping insertion in model container [2022-11-03 03:43:04,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:43:04,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:43:04,503 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_a21f637a-9807-4f4a-96a8-79edf38ee8b2/sv-benchmarks/c/product-lines/minepump_spec2_product28.cil.c[2141,2154] [2022-11-03 03:43:04,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:43:04,640 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:43:04,659 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_a21f637a-9807-4f4a-96a8-79edf38ee8b2/sv-benchmarks/c/product-lines/minepump_spec2_product28.cil.c[2141,2154] [2022-11-03 03:43:04,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:43:04,810 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:43:04,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04 WrapperNode [2022-11-03 03:43:04,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:43:04,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:43:04,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:43:04,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:43:04,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,892 INFO L138 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 23, calls inlined = 18, statements flattened = 227 [2022-11-03 03:43:04,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:43:04,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:43:04,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:43:04,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:43:04,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,942 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:43:04,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:43:04,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:43:04,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:43:04,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (1/1) ... [2022-11-03 03:43:04,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:43:04,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:43:05,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:43:05,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:43:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:43:05,074 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 03:43:05,074 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 03:43:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 03:43:05,075 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 03:43:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 03:43:05,075 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 03:43:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-03 03:43:05,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-03 03:43:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 03:43:05,076 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 03:43:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 03:43:05,076 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 03:43:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:43:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 03:43:05,077 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 03:43:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:43:05,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:43:05,221 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:43:05,223 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:43:05,736 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:43:05,876 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:43:05,883 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 03:43:05,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:43:05 BoogieIcfgContainer [2022-11-03 03:43:05,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:43:05,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:43:05,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:43:05,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:43:05,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:43:04" (1/3) ... [2022-11-03 03:43:05,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc199a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:43:05, skipping insertion in model container [2022-11-03 03:43:05,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:04" (2/3) ... [2022-11-03 03:43:05,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc199a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:43:05, skipping insertion in model container [2022-11-03 03:43:05,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:43:05" (3/3) ... [2022-11-03 03:43:05,903 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product28.cil.c [2022-11-03 03:43:05,928 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:43:05,928 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:43:06,020 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:43:06,029 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19d94813, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:43:06,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:43:06,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 44 states have internal predecessors, (54), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-03 03:43:06,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 03:43:06,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:06,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:43:06,049 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:06,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:06,056 INFO L85 PathProgramCache]: Analyzing trace with hash -714408765, now seen corresponding path program 1 times [2022-11-03 03:43:06,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:06,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073157920] [2022-11-03 03:43:06,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:06,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:06,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:43:06,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:06,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073157920] [2022-11-03 03:43:06,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073157920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:06,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:06,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:43:06,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145392028] [2022-11-03 03:43:06,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:06,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:43:06,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:06,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:43:06,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:43:06,344 INFO L87 Difference]: Start difference. First operand has 57 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 44 states have internal predecessors, (54), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:43:06,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:06,410 INFO L93 Difference]: Finished difference Result 112 states and 153 transitions. [2022-11-03 03:43:06,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:43:06,414 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-03 03:43:06,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:06,430 INFO L225 Difference]: With dead ends: 112 [2022-11-03 03:43:06,430 INFO L226 Difference]: Without dead ends: 52 [2022-11-03 03:43:06,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:43:06,438 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:06,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:43:06,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-03 03:43:06,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-03 03:43:06,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 40 states have internal predecessors, (46), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-03 03:43:06,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2022-11-03 03:43:06,503 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 17 [2022-11-03 03:43:06,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:06,504 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2022-11-03 03:43:06,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:43:06,506 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2022-11-03 03:43:06,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 03:43:06,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:06,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:43:06,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:43:06,511 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:06,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:06,513 INFO L85 PathProgramCache]: Analyzing trace with hash 327774478, now seen corresponding path program 1 times [2022-11-03 03:43:06,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:06,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667710211] [2022-11-03 03:43:06,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:06,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:06,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:43:06,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:06,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667710211] [2022-11-03 03:43:06,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667710211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:06,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:06,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:43:06,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768150361] [2022-11-03 03:43:06,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:06,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:43:06,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:06,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:43:06,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:43:06,718 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:43:06,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:06,769 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2022-11-03 03:43:06,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:43:06,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-03 03:43:06,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:06,771 INFO L225 Difference]: With dead ends: 76 [2022-11-03 03:43:06,771 INFO L226 Difference]: Without dead ends: 44 [2022-11-03 03:43:06,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:43:06,773 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 14 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:06,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 70 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:43:06,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-03 03:43:06,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-03 03:43:06,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 35 states have internal predecessors, (40), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-03 03:43:06,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2022-11-03 03:43:06,782 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 18 [2022-11-03 03:43:06,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:06,782 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2022-11-03 03:43:06,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:43:06,783 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2022-11-03 03:43:06,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 03:43:06,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:06,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:43:06,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:43:06,785 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:06,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:06,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1546544402, now seen corresponding path program 1 times [2022-11-03 03:43:06,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:06,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853712531] [2022-11-03 03:43:06,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:06,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:07,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:43:07,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:07,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853712531] [2022-11-03 03:43:07,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853712531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:07,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:07,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:43:07,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591394308] [2022-11-03 03:43:07,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:07,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:43:07,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:07,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:43:07,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:43:07,061 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:43:07,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:07,229 INFO L93 Difference]: Finished difference Result 120 states and 154 transitions. [2022-11-03 03:43:07,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:43:07,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-03 03:43:07,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:07,234 INFO L225 Difference]: With dead ends: 120 [2022-11-03 03:43:07,234 INFO L226 Difference]: Without dead ends: 78 [2022-11-03 03:43:07,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:43:07,236 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 79 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:07,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 119 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:43:07,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-03 03:43:07,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 75. [2022-11-03 03:43:07,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 50 states have (on average 1.38) internal successors, (69), 59 states have internal predecessors, (69), 13 states have call successors, (13), 11 states have call predecessors, (13), 11 states have return successors, (14), 10 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-03 03:43:07,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2022-11-03 03:43:07,260 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 21 [2022-11-03 03:43:07,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:07,261 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2022-11-03 03:43:07,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:43:07,261 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2022-11-03 03:43:07,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:43:07,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:07,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:43:07,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:43:07,263 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:07,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:07,264 INFO L85 PathProgramCache]: Analyzing trace with hash 2061460140, now seen corresponding path program 1 times [2022-11-03 03:43:07,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:07,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217314206] [2022-11-03 03:43:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:07,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:07,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:43:07,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:07,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217314206] [2022-11-03 03:43:07,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217314206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:07,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:07,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:43:07,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551611084] [2022-11-03 03:43:07,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:07,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:43:07,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:07,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:43:07,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:43:07,440 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:43:07,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:07,662 INFO L93 Difference]: Finished difference Result 217 states and 283 transitions. [2022-11-03 03:43:07,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:43:07,663 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-03 03:43:07,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:07,672 INFO L225 Difference]: With dead ends: 217 [2022-11-03 03:43:07,672 INFO L226 Difference]: Without dead ends: 144 [2022-11-03 03:43:07,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:43:07,675 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 32 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:07,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 219 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:43:07,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-11-03 03:43:07,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 136. [2022-11-03 03:43:07,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 91 states have (on average 1.3516483516483517) internal successors, (123), 106 states have internal predecessors, (123), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (26), 18 states have call predecessors, (26), 24 states have call successors, (26) [2022-11-03 03:43:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 173 transitions. [2022-11-03 03:43:07,733 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 173 transitions. Word has length 24 [2022-11-03 03:43:07,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:07,734 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 173 transitions. [2022-11-03 03:43:07,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:43:07,734 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 173 transitions. [2022-11-03 03:43:07,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 03:43:07,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:07,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:43:07,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:43:07,742 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:07,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:07,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1037700753, now seen corresponding path program 1 times [2022-11-03 03:43:07,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:07,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061849824] [2022-11-03 03:43:07,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:07,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:07,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:43:07,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:07,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061849824] [2022-11-03 03:43:07,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061849824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:07,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:07,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:43:07,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291284931] [2022-11-03 03:43:07,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:07,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:43:07,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:07,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:43:07,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:43:07,862 INFO L87 Difference]: Start difference. First operand 136 states and 173 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:43:07,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:07,940 INFO L93 Difference]: Finished difference Result 209 states and 273 transitions. [2022-11-03 03:43:07,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:43:07,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-11-03 03:43:07,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:07,944 INFO L225 Difference]: With dead ends: 209 [2022-11-03 03:43:07,944 INFO L226 Difference]: Without dead ends: 207 [2022-11-03 03:43:07,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:43:07,946 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 31 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:07,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 90 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:43:07,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-11-03 03:43:07,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2022-11-03 03:43:07,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 138 states have (on average 1.355072463768116) internal successors, (187), 161 states have internal predecessors, (187), 37 states have call successors, (37), 31 states have call predecessors, (37), 31 states have return successors, (46), 28 states have call predecessors, (46), 37 states have call successors, (46) [2022-11-03 03:43:07,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 270 transitions. [2022-11-03 03:43:07,981 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 270 transitions. Word has length 27 [2022-11-03 03:43:07,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:07,982 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 270 transitions. [2022-11-03 03:43:07,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:43:07,982 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 270 transitions. [2022-11-03 03:43:07,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-03 03:43:07,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:07,985 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:43:07,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:43:07,985 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:07,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:07,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1360553446, now seen corresponding path program 1 times [2022-11-03 03:43:07,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:07,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228550613] [2022-11-03 03:43:07,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:07,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:08,280 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 03:43:08,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:08,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228550613] [2022-11-03 03:43:08,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228550613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:08,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:08,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:43:08,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513175433] [2022-11-03 03:43:08,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:08,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:43:08,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:08,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:43:08,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:43:08,285 INFO L87 Difference]: Start difference. First operand 207 states and 270 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 03:43:08,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:08,493 INFO L93 Difference]: Finished difference Result 323 states and 424 transitions. [2022-11-03 03:43:08,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:43:08,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2022-11-03 03:43:08,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:08,496 INFO L225 Difference]: With dead ends: 323 [2022-11-03 03:43:08,496 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 03:43:08,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:43:08,499 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 35 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:08,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 63 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:43:08,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 03:43:08,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 03:43:08,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:43:08,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 03:43:08,501 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2022-11-03 03:43:08,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:08,501 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 03:43:08,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 03:43:08,502 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 03:43:08,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 03:43:08,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:43:08,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:43:08,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 03:43:09,430 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 287 294) the Hoare annotation is: true [2022-11-03 03:43:09,430 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 287 294) no Hoare annotation was computed. [2022-11-03 03:43:09,430 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 228 234) no Hoare annotation was computed. [2022-11-03 03:43:09,431 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 228 234) the Hoare annotation is: true [2022-11-03 03:43:09,431 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 130 141) the Hoare annotation is: true [2022-11-03 03:43:09,431 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 130 141) no Hoare annotation was computed. [2022-11-03 03:43:09,431 INFO L902 garLoopResultBuilder]: At program point L514-2(lines 514 528) the Hoare annotation is: true [2022-11-03 03:43:09,432 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 504 533) no Hoare annotation was computed. [2022-11-03 03:43:09,432 INFO L902 garLoopResultBuilder]: At program point L510(line 510) the Hoare annotation is: true [2022-11-03 03:43:09,432 INFO L899 garLoopResultBuilder]: For program point L510-1(line 510) no Hoare annotation was computed. [2022-11-03 03:43:09,432 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 504 533) the Hoare annotation is: true [2022-11-03 03:43:09,433 INFO L902 garLoopResultBuilder]: At program point L529(lines 504 533) the Hoare annotation is: true [2022-11-03 03:43:09,433 INFO L899 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2022-11-03 03:43:09,433 INFO L899 garLoopResultBuilder]: For program point L518(lines 518 522) no Hoare annotation was computed. [2022-11-03 03:43:09,433 INFO L902 garLoopResultBuilder]: At program point L518-1(lines 518 522) the Hoare annotation is: true [2022-11-03 03:43:09,434 INFO L895 garLoopResultBuilder]: At program point L481(lines 481 498) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| 0) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2022-11-03 03:43:09,434 INFO L895 garLoopResultBuilder]: At program point L481-1(lines 473 501) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| 0) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2022-11-03 03:43:09,435 INFO L895 garLoopResultBuilder]: At program point L250(line 250) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-03 03:43:09,435 INFO L895 garLoopResultBuilder]: At program point L246(line 246) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-03 03:43:09,435 INFO L899 garLoopResultBuilder]: For program point L486(lines 486 492) no Hoare annotation was computed. [2022-11-03 03:43:09,435 INFO L895 garLoopResultBuilder]: At program point L255(line 255) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (not (= 0 ~systemActive~0)))) [2022-11-03 03:43:09,436 INFO L895 garLoopResultBuilder]: At program point L255-1(lines 236 260) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (not (= 0 ~systemActive~0)))) [2022-11-03 03:43:09,440 INFO L895 garLoopResultBuilder]: At program point L479(line 479) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-03 03:43:09,441 INFO L899 garLoopResultBuilder]: For program point L479-1(line 479) no Hoare annotation was computed. [2022-11-03 03:43:09,441 INFO L899 garLoopResultBuilder]: For program point L215-1(lines 215 221) no Hoare annotation was computed. [2022-11-03 03:43:09,441 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 252) no Hoare annotation was computed. [2022-11-03 03:43:09,441 INFO L895 garLoopResultBuilder]: At program point L240(lines 240 257) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (not (= 0 ~systemActive~0)))) [2022-11-03 03:43:09,442 INFO L895 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-03 03:43:09,442 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 204 227) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-03 03:43:09,442 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 207 226) no Hoare annotation was computed. [2022-11-03 03:43:09,443 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 204 227) no Hoare annotation was computed. [2022-11-03 03:43:09,443 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2022-11-03 03:43:09,443 INFO L899 garLoopResultBuilder]: For program point L485(lines 485 495) no Hoare annotation was computed. [2022-11-03 03:43:09,443 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 142 150) the Hoare annotation is: true [2022-11-03 03:43:09,444 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 142 150) no Hoare annotation was computed. [2022-11-03 03:43:09,444 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 421) no Hoare annotation was computed. [2022-11-03 03:43:09,444 INFO L899 garLoopResultBuilder]: For program point L415-1(lines 415 421) no Hoare annotation was computed. [2022-11-03 03:43:09,444 INFO L899 garLoopResultBuilder]: For program point L374(lines 374 380) no Hoare annotation was computed. [2022-11-03 03:43:09,445 INFO L895 garLoopResultBuilder]: At program point L374-1(lines 374 380) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~5#1| 1)) [2022-11-03 03:43:09,445 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 03:43:09,445 INFO L895 garLoopResultBuilder]: At program point L586(lines 586 593) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_main_~tmp~5#1| 1) (not (= 0 ~systemActive~0))) [2022-11-03 03:43:09,455 INFO L902 garLoopResultBuilder]: At program point L458(lines 395 462) the Hoare annotation is: true [2022-11-03 03:43:09,455 INFO L899 garLoopResultBuilder]: For program point L425(lines 425 431) no Hoare annotation was computed. [2022-11-03 03:43:09,456 INFO L899 garLoopResultBuilder]: For program point L425-1(lines 425 431) no Hoare annotation was computed. [2022-11-03 03:43:09,456 INFO L902 garLoopResultBuilder]: At program point L586-2(lines 586 593) the Hoare annotation is: true [2022-11-03 03:43:09,456 INFO L895 garLoopResultBuilder]: At program point L417(line 417) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~5#1| 1)) [2022-11-03 03:43:09,457 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 03:43:09,457 INFO L895 garLoopResultBuilder]: At program point L376(line 376) the Hoare annotation is: false [2022-11-03 03:43:09,457 INFO L895 garLoopResultBuilder]: At program point L455(lines 404 456) the Hoare annotation is: false [2022-11-03 03:43:09,457 INFO L899 garLoopResultBuilder]: For program point L443(lines 443 449) no Hoare annotation was computed. [2022-11-03 03:43:09,458 INFO L895 garLoopResultBuilder]: At program point L443-2(lines 435 450) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~5#1| 1)) [2022-11-03 03:43:09,458 INFO L899 garLoopResultBuilder]: For program point L406(lines 405 454) no Hoare annotation was computed. [2022-11-03 03:43:09,458 INFO L895 garLoopResultBuilder]: At program point L435(lines 435 450) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~5#1| 1)) [2022-11-03 03:43:09,458 INFO L895 garLoopResultBuilder]: At program point L427(line 427) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~5#1| 1)) [2022-11-03 03:43:09,459 INFO L895 garLoopResultBuilder]: At program point L452(lines 405 454) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~5#1| 1)) [2022-11-03 03:43:09,459 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 118 129) no Hoare annotation was computed. [2022-11-03 03:43:09,459 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 118 129) the Hoare annotation is: true [2022-11-03 03:43:09,464 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-03 03:43:09,467 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:43:09,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:43:09 BoogieIcfgContainer [2022-11-03 03:43:09,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:43:09,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:43:09,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:43:09,504 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:43:09,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:43:05" (3/4) ... [2022-11-03 03:43:09,508 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 03:43:09,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 03:43:09,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 03:43:09,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 03:43:09,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 03:43:09,516 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 03:43:09,516 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-03 03:43:09,516 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 03:43:09,524 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 69 nodes and edges [2022-11-03 03:43:09,524 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-03 03:43:09,525 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-03 03:43:09,525 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 03:43:09,526 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 03:43:09,526 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:43:09,527 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:43:09,567 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-11-03 03:43:09,568 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && !(0 == systemActive)) [2022-11-03 03:43:09,568 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && !(0 == systemActive)) [2022-11-03 03:43:09,569 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || tmp == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) [2022-11-03 03:43:09,569 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || tmp == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) [2022-11-03 03:43:09,570 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) [2022-11-03 03:43:09,612 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 03:43:09,613 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:43:09,614 INFO L158 Benchmark]: Toolchain (without parser) took 5439.43ms. Allocated memory was 102.8MB in the beginning and 169.9MB in the end (delta: 67.1MB). Free memory was 68.5MB in the beginning and 140.3MB in the end (delta: -71.9MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2022-11-03 03:43:09,614 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 102.8MB. Free memory was 55.6MB in the beginning and 55.5MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:43:09,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 637.32ms. Allocated memory is still 102.8MB. Free memory was 68.3MB in the beginning and 69.4MB in the end (delta: -1.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 03:43:09,615 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.75ms. Allocated memory is still 102.8MB. Free memory was 69.4MB in the beginning and 67.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:43:09,616 INFO L158 Benchmark]: Boogie Preprocessor took 74.05ms. Allocated memory is still 102.8MB. Free memory was 67.0MB in the beginning and 65.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:43:09,617 INFO L158 Benchmark]: RCFGBuilder took 918.95ms. Allocated memory was 102.8MB in the beginning and 132.1MB in the end (delta: 29.4MB). Free memory was 65.2MB in the beginning and 99.2MB in the end (delta: -34.0MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-11-03 03:43:09,617 INFO L158 Benchmark]: TraceAbstraction took 3610.32ms. Allocated memory is still 132.1MB. Free memory was 98.6MB in the beginning and 43.7MB in the end (delta: 54.9MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-11-03 03:43:09,618 INFO L158 Benchmark]: Witness Printer took 109.16ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 43.7MB in the beginning and 140.3MB in the end (delta: -96.6MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2022-11-03 03:43:09,621 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 102.8MB. Free memory was 55.6MB in the beginning and 55.5MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 637.32ms. Allocated memory is still 102.8MB. Free memory was 68.3MB in the beginning and 69.4MB in the end (delta: -1.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.75ms. Allocated memory is still 102.8MB. Free memory was 69.4MB in the beginning and 67.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.05ms. Allocated memory is still 102.8MB. Free memory was 67.0MB in the beginning and 65.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 918.95ms. Allocated memory was 102.8MB in the beginning and 132.1MB in the end (delta: 29.4MB). Free memory was 65.2MB in the beginning and 99.2MB in the end (delta: -34.0MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3610.32ms. Allocated memory is still 132.1MB. Free memory was 98.6MB in the beginning and 43.7MB in the end (delta: 54.9MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Witness Printer took 109.16ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 43.7MB in the beginning and 140.3MB in the end (delta: -96.6MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 92]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 202 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 191 mSDsluCounter, 618 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 440 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 280 IncrementalHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 274 mSDtfsCounter, 280 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=207occurred in iteration=5, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 32 LocationsWithAnnotation, 274 PreInvPairs, 322 NumberOfFragments, 295 HoareAnnotationTreeSize, 274 FomulaSimplifications, 45 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 32 FomulaSimplificationsInter, 1490 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 19/19 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 236]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && !(0 == systemActive)) - InvariantResult [Line: 473]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || tmp == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) - InvariantResult [Line: 404]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 481]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || tmp == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) - InvariantResult [Line: 395]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 204]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 405]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && tmp == 1 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && !(0 == systemActive)) - InvariantResult [Line: 435]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && tmp == 1 - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) - InvariantResult [Line: 374]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && tmp == 1 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && tmp == 1) && !(0 == systemActive) RESULT: Ultimate proved your program to be correct! [2022-11-03 03:43:09,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21f637a-9807-4f4a-96a8-79edf38ee8b2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE