./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW --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 e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 --- 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-4e7fbc6 [2022-11-23 14:25:40,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:25:40,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:25:40,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:25:40,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:25:40,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:25:40,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:25:40,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:25:40,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:25:40,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:25:40,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:25:40,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:25:40,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:25:40,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:25:40,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:25:40,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:25:40,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:25:40,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:25:40,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:25:40,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:25:40,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:25:40,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:25:40,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:25:40,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:25:40,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:25:40,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:25:40,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:25:40,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:25:40,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:25:40,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:25:40,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:25:40,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:25:40,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:25:40,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:25:40,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:25:40,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:25:40,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:25:40,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:25:40,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:25:40,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:25:40,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:25:40,573 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:25:40,625 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:25:40,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:25:40,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:25:40,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:25:40,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:25:40,627 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:25:40,627 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:25:40,627 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:25:40,627 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:25:40,628 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:25:40,629 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:25:40,629 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:25:40,629 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:25:40,629 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:25:40,629 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:25:40,630 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:25:40,630 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:25:40,630 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:25:40,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:25:40,631 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:25:40,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:25:40,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:25:40,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:25:40,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:25:40,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:25:40,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:25:40,632 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:25:40,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:25:40,633 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:25:40,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:25:40,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:25:40,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:25:40,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:25:40,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:25:40,634 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:25:40,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:25:40,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:25:40,634 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:25:40,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:25:40,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:25:40,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:25:40,645 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_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 [2022-11-23 14:25:40,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:25:40,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:25:40,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:25:40,999 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:25:41,000 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:25:41,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2022-11-23 14:25:43,984 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:25:44,284 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:25:44,303 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2022-11-23 14:25:44,314 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/data/3f244fbb6/28f48b81337f46a2a4ed1e0e607abb69/FLAG3177e2f37 [2022-11-23 14:25:44,341 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/data/3f244fbb6/28f48b81337f46a2a4ed1e0e607abb69 [2022-11-23 14:25:44,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:25:44,346 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:25:44,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:25:44,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:25:44,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:25:44,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a38075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44, skipping insertion in model container [2022-11-23 14:25:44,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:25:44,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:25:44,755 WARN L237 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_ede4ac54-c9ad-4824-a992-0e2411173ddf/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2022-11-23 14:25:44,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:25:44,775 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:25:44,865 WARN L237 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_ede4ac54-c9ad-4824-a992-0e2411173ddf/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2022-11-23 14:25:44,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:25:44,889 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:25:44,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44 WrapperNode [2022-11-23 14:25:44,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:25:44,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:25:44,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:25:44,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:25:44,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,936 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 230 [2022-11-23 14:25:44,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:25:44,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:25:44,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:25:44,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:25:44,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,976 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:25:44,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:25:44,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:25:44,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:25:44,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:45,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:25:45,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:25:45,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:25:45,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:25:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:25:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 14:25:45,087 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 14:25:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 14:25:45,087 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 14:25:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 14:25:45,087 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 14:25:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 14:25:45,088 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 14:25:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 14:25:45,088 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 14:25:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-23 14:25:45,089 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-23 14:25:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-23 14:25:45,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-23 14:25:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-23 14:25:45,089 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-23 14:25:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:25:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 14:25:45,090 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 14:25:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:25:45,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:25:45,173 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:25:45,176 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:25:45,620 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:25:45,753 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:25:45,754 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:25:45,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:45 BoogieIcfgContainer [2022-11-23 14:25:45,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:25:45,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:25:45,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:25:45,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:25:45,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:25:44" (1/3) ... [2022-11-23 14:25:45,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58fc89e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:25:45, skipping insertion in model container [2022-11-23 14:25:45,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (2/3) ... [2022-11-23 14:25:45,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58fc89e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:25:45, skipping insertion in model container [2022-11-23 14:25:45,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:45" (3/3) ... [2022-11-23 14:25:45,766 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2022-11-23 14:25:45,789 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:25:45,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:25:45,849 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:25:45,860 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;@50e300bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:25:45,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:25:45,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 52 states have internal predecessors, (60), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-23 14:25:45,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 14:25:45,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:45,922 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:45,931 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:45,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:45,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1080362011, now seen corresponding path program 1 times [2022-11-23 14:25:45,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:45,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966835161] [2022-11-23 14:25:45,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:45,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:46,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:25:46,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:46,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966835161] [2022-11-23 14:25:46,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966835161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:46,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:46,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:25:46,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504396153] [2022-11-23 14:25:46,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:46,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:25:46,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:46,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:25:46,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:25:46,279 INFO L87 Difference]: Start difference. First operand has 69 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 52 states have internal predecessors, (60), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:25:46,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:46,401 INFO L93 Difference]: Finished difference Result 136 states and 185 transitions. [2022-11-23 14:25:46,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:25:46,404 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-23 14:25:46,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:46,418 INFO L225 Difference]: With dead ends: 136 [2022-11-23 14:25:46,419 INFO L226 Difference]: Without dead ends: 64 [2022-11-23 14:25:46,423 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 [2022-11-23 14:25:46,430 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:46,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:25:46,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-23 14:25:46,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-23 14:25:46,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 48 states have internal predecessors, (52), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-23 14:25:46,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2022-11-23 14:25:46,503 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 21 [2022-11-23 14:25:46,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:46,504 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2022-11-23 14:25:46,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:25:46,505 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2022-11-23 14:25:46,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 14:25:46,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:46,512 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:46,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:25:46,513 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:46,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:46,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1884563309, now seen corresponding path program 1 times [2022-11-23 14:25:46,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:46,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438297646] [2022-11-23 14:25:46,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:46,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:25:46,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:46,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438297646] [2022-11-23 14:25:46,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438297646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:46,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:46,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:25:46,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498575817] [2022-11-23 14:25:46,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:46,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:25:46,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:46,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:25:46,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:25:46,640 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:25:46,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:46,701 INFO L93 Difference]: Finished difference Result 126 states and 167 transitions. [2022-11-23 14:25:46,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:25:46,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-11-23 14:25:46,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:46,704 INFO L225 Difference]: With dead ends: 126 [2022-11-23 14:25:46,706 INFO L226 Difference]: Without dead ends: 64 [2022-11-23 14:25:46,707 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 [2022-11-23 14:25:46,709 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 70 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:46,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 65 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:25:46,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-23 14:25:46,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-23 14:25:46,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 48 states have internal predecessors, (51), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-23 14:25:46,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2022-11-23 14:25:46,726 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 24 [2022-11-23 14:25:46,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:46,728 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2022-11-23 14:25:46,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:25:46,728 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2022-11-23 14:25:46,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 14:25:46,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:46,730 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:46,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:25:46,731 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:46,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:46,731 INFO L85 PathProgramCache]: Analyzing trace with hash -250429362, now seen corresponding path program 1 times [2022-11-23 14:25:46,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:46,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919186559] [2022-11-23 14:25:46,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:46,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:25:46,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:46,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919186559] [2022-11-23 14:25:46,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919186559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:46,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:46,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:25:46,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416970034] [2022-11-23 14:25:46,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:46,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:25:46,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:46,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:25:46,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:25:46,843 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 14:25:46,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:46,921 INFO L93 Difference]: Finished difference Result 175 states and 238 transitions. [2022-11-23 14:25:46,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:25:46,921 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), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-11-23 14:25:46,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:46,923 INFO L225 Difference]: With dead ends: 175 [2022-11-23 14:25:46,923 INFO L226 Difference]: Without dead ends: 113 [2022-11-23 14:25:46,925 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 [2022-11-23 14:25:46,926 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 57 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:46,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 152 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:25:46,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-23 14:25:46,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2022-11-23 14:25:46,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 79 states have internal predecessors, (89), 24 states have call successors, (24), 17 states have call predecessors, (24), 15 states have return successors, (32), 20 states have call predecessors, (32), 22 states have call successors, (32) [2022-11-23 14:25:46,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 145 transitions. [2022-11-23 14:25:46,948 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 145 transitions. Word has length 30 [2022-11-23 14:25:46,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:46,948 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 145 transitions. [2022-11-23 14:25:46,948 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), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 14:25:46,949 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 145 transitions. [2022-11-23 14:25:46,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-23 14:25:46,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:46,950 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:46,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:25:46,951 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:46,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:46,952 INFO L85 PathProgramCache]: Analyzing trace with hash 851485166, now seen corresponding path program 1 times [2022-11-23 14:25:46,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:46,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553370652] [2022-11-23 14:25:46,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:46,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:47,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:25:47,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:47,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553370652] [2022-11-23 14:25:47,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553370652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:47,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:47,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:25:47,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331209334] [2022-11-23 14:25:47,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:47,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:25:47,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:47,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:25:47,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:25:47,061 INFO L87 Difference]: Start difference. First operand 111 states and 145 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 14:25:47,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:47,144 INFO L93 Difference]: Finished difference Result 178 states and 228 transitions. [2022-11-23 14:25:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:25:47,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-11-23 14:25:47,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:47,151 INFO L225 Difference]: With dead ends: 178 [2022-11-23 14:25:47,151 INFO L226 Difference]: Without dead ends: 95 [2022-11-23 14:25:47,154 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 [2022-11-23 14:25:47,156 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 7 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:47,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 103 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:25:47,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-11-23 14:25:47,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-11-23 14:25:47,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 61 states have (on average 1.2622950819672132) internal successors, (77), 69 states have internal predecessors, (77), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (24), 16 states have call predecessors, (24), 18 states have call successors, (24) [2022-11-23 14:25:47,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 119 transitions. [2022-11-23 14:25:47,172 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 119 transitions. Word has length 35 [2022-11-23 14:25:47,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:47,173 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 119 transitions. [2022-11-23 14:25:47,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 14:25:47,173 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 119 transitions. [2022-11-23 14:25:47,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-23 14:25:47,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:47,175 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:47,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:25:47,175 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:47,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:47,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1402126779, now seen corresponding path program 1 times [2022-11-23 14:25:47,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:47,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900907540] [2022-11-23 14:25:47,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:47,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:47,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:25:47,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:47,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900907540] [2022-11-23 14:25:47,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900907540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:47,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:47,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:25:47,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301014171] [2022-11-23 14:25:47,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:47,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:25:47,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:47,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:25:47,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:25:47,551 INFO L87 Difference]: Start difference. First operand 95 states and 119 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 14:25:47,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:47,766 INFO L93 Difference]: Finished difference Result 277 states and 346 transitions. [2022-11-23 14:25:47,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:25:47,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 37 [2022-11-23 14:25:47,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:47,772 INFO L225 Difference]: With dead ends: 277 [2022-11-23 14:25:47,772 INFO L226 Difference]: Without dead ends: 184 [2022-11-23 14:25:47,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:25:47,778 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 109 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:47,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 233 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:25:47,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-23 14:25:47,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 176. [2022-11-23 14:25:47,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 113 states have (on average 1.238938053097345) internal successors, (140), 125 states have internal predecessors, (140), 33 states have call successors, (33), 28 states have call predecessors, (33), 29 states have return successors, (45), 30 states have call predecessors, (45), 33 states have call successors, (45) [2022-11-23 14:25:47,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 218 transitions. [2022-11-23 14:25:47,829 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 218 transitions. Word has length 37 [2022-11-23 14:25:47,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:47,830 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 218 transitions. [2022-11-23 14:25:47,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 14:25:47,831 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 218 transitions. [2022-11-23 14:25:47,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-23 14:25:47,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:47,836 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:47,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:25:47,837 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:47,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:47,838 INFO L85 PathProgramCache]: Analyzing trace with hash 775405151, now seen corresponding path program 1 times [2022-11-23 14:25:47,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:47,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467623923] [2022-11-23 14:25:47,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:47,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:48,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:25:48,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:48,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467623923] [2022-11-23 14:25:48,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467623923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:48,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:48,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:25:48,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136246189] [2022-11-23 14:25:48,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:48,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:25:48,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:48,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:25:48,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:25:48,226 INFO L87 Difference]: Start difference. First operand 176 states and 218 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 14:25:48,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:48,825 INFO L93 Difference]: Finished difference Result 424 states and 540 transitions. [2022-11-23 14:25:48,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 14:25:48,826 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 40 [2022-11-23 14:25:48,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:48,832 INFO L225 Difference]: With dead ends: 424 [2022-11-23 14:25:48,832 INFO L226 Difference]: Without dead ends: 304 [2022-11-23 14:25:48,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-23 14:25:48,838 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 179 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:48,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 289 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:25:48,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-11-23 14:25:48,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 261. [2022-11-23 14:25:48,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 172 states have (on average 1.244186046511628) internal successors, (214), 189 states have internal predecessors, (214), 46 states have call successors, (46), 35 states have call predecessors, (46), 42 states have return successors, (65), 47 states have call predecessors, (65), 46 states have call successors, (65) [2022-11-23 14:25:48,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 325 transitions. [2022-11-23 14:25:48,913 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 325 transitions. Word has length 40 [2022-11-23 14:25:48,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:48,915 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 325 transitions. [2022-11-23 14:25:48,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 14:25:48,916 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 325 transitions. [2022-11-23 14:25:48,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-23 14:25:48,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:48,919 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:48,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:25:48,920 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:48,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:48,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1685826622, now seen corresponding path program 1 times [2022-11-23 14:25:48,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:48,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194357828] [2022-11-23 14:25:48,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:48,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:49,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:25:49,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:49,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194357828] [2022-11-23 14:25:49,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194357828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:49,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:49,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:25:49,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326001184] [2022-11-23 14:25:49,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:49,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:25:49,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:49,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:25:49,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:25:49,094 INFO L87 Difference]: Start difference. First operand 261 states and 325 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:25:49,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:49,440 INFO L93 Difference]: Finished difference Result 555 states and 698 transitions. [2022-11-23 14:25:49,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 14:25:49,441 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2022-11-23 14:25:49,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:49,443 INFO L225 Difference]: With dead ends: 555 [2022-11-23 14:25:49,443 INFO L226 Difference]: Without dead ends: 296 [2022-11-23 14:25:49,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-23 14:25:49,444 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 69 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:49,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 276 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:25:49,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-11-23 14:25:49,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 268. [2022-11-23 14:25:49,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 176 states have (on average 1.2102272727272727) internal successors, (213), 193 states have internal predecessors, (213), 47 states have call successors, (47), 35 states have call predecessors, (47), 44 states have return successors, (70), 50 states have call predecessors, (70), 47 states have call successors, (70) [2022-11-23 14:25:49,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 330 transitions. [2022-11-23 14:25:49,486 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 330 transitions. Word has length 40 [2022-11-23 14:25:49,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:49,486 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 330 transitions. [2022-11-23 14:25:49,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:25:49,487 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 330 transitions. [2022-11-23 14:25:49,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-23 14:25:49,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:49,488 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:49,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:25:49,489 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:49,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:49,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1803947791, now seen corresponding path program 1 times [2022-11-23 14:25:49,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:49,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162385974] [2022-11-23 14:25:49,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:49,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:49,605 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 14:25:49,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:49,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162385974] [2022-11-23 14:25:49,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162385974] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:25:49,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684309156] [2022-11-23 14:25:49,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:49,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:25:49,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:25:49,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:25:49,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:25:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:49,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 14:25:49,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:25:49,857 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:25:49,858 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:25:49,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684309156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:49,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:25:49,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-11-23 14:25:49,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459080345] [2022-11-23 14:25:49,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:49,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:25:49,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:49,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:25:49,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:25:49,860 INFO L87 Difference]: Start difference. First operand 268 states and 330 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-23 14:25:49,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:49,934 INFO L93 Difference]: Finished difference Result 405 states and 503 transitions. [2022-11-23 14:25:49,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:25:49,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 70 [2022-11-23 14:25:49,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:49,937 INFO L225 Difference]: With dead ends: 405 [2022-11-23 14:25:49,937 INFO L226 Difference]: Without dead ends: 258 [2022-11-23 14:25:49,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:25:49,938 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 35 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:49,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 119 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:25:49,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-11-23 14:25:49,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2022-11-23 14:25:49,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 169 states have (on average 1.1775147928994083) internal successors, (199), 185 states have internal predecessors, (199), 45 states have call successors, (45), 35 states have call predecessors, (45), 43 states have return successors, (56), 48 states have call predecessors, (56), 45 states have call successors, (56) [2022-11-23 14:25:49,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 300 transitions. [2022-11-23 14:25:49,973 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 300 transitions. Word has length 70 [2022-11-23 14:25:49,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:49,975 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 300 transitions. [2022-11-23 14:25:49,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-23 14:25:49,976 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 300 transitions. [2022-11-23 14:25:49,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-23 14:25:49,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:49,977 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:49,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:25:50,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:25:50,184 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:50,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:50,184 INFO L85 PathProgramCache]: Analyzing trace with hash -925446459, now seen corresponding path program 1 times [2022-11-23 14:25:50,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:50,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007964831] [2022-11-23 14:25:50,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:50,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:50,379 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 14:25:50,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:50,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007964831] [2022-11-23 14:25:50,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007964831] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:25:50,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458139628] [2022-11-23 14:25:50,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:50,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:25:50,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:25:50,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:25:50,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:25:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:50,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 14:25:50,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:25:50,667 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:25:50,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:25:50,932 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 14:25:50,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458139628] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:25:50,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2143201266] [2022-11-23 14:25:50,958 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2022-11-23 14:25:50,958 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:25:50,963 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:25:50,969 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:25:50,969 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:25:54,371 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 54 for LOIs [2022-11-23 14:25:54,383 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 48 for LOIs [2022-11-23 14:25:55,002 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 64 for LOIs [2022-11-23 14:25:55,537 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 57 for LOIs [2022-11-23 14:25:55,621 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2022-11-23 14:25:55,622 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 39 for LOIs [2022-11-23 14:25:55,626 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:26:01,754 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6317#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~11#1| ~waterLevel~0) (<= ~pumpRunning~0 2147483647) (= ~methaneLevelCritical~0 0) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 0)) (<= |old(~pumpRunning~0)| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~11#1| |timeShift_getWaterLevel_#res#1|) (= 1 ~systemActive~0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (= ~head~0.base 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= |#NULL.offset| 0) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 14:26:01,754 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:26:01,754 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:26:01,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2022-11-23 14:26:01,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449733341] [2022-11-23 14:26:01,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:26:01,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 14:26:01,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:26:01,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 14:26:01,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=1963, Unknown=0, NotChecked=0, Total=2256 [2022-11-23 14:26:01,757 INFO L87 Difference]: Start difference. First operand 258 states and 300 transitions. Second operand has 15 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) [2022-11-23 14:26:02,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:26:02,637 INFO L93 Difference]: Finished difference Result 338 states and 403 transitions. [2022-11-23 14:26:02,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 14:26:02,638 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) Word has length 74 [2022-11-23 14:26:02,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:26:02,640 INFO L225 Difference]: With dead ends: 338 [2022-11-23 14:26:02,641 INFO L226 Difference]: Without dead ends: 336 [2022-11-23 14:26:02,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 179 SyntacticMatches, 11 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1439 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=466, Invalid=3316, Unknown=0, NotChecked=0, Total=3782 [2022-11-23 14:26:02,643 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 174 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:26:02,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 663 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:26:02,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-11-23 14:26:02,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 294. [2022-11-23 14:26:02,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 190 states have (on average 1.168421052631579) internal successors, (222), 211 states have internal predecessors, (222), 53 states have call successors, (53), 43 states have call predecessors, (53), 50 states have return successors, (68), 54 states have call predecessors, (68), 53 states have call successors, (68) [2022-11-23 14:26:02,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 343 transitions. [2022-11-23 14:26:02,674 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 343 transitions. Word has length 74 [2022-11-23 14:26:02,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:26:02,675 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 343 transitions. [2022-11-23 14:26:02,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) [2022-11-23 14:26:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 343 transitions. [2022-11-23 14:26:02,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-23 14:26:02,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:26:02,677 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:26:02,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 14:26:02,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-23 14:26:02,884 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:26:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:26:02,884 INFO L85 PathProgramCache]: Analyzing trace with hash 979712234, now seen corresponding path program 1 times [2022-11-23 14:26:02,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:26:02,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694579617] [2022-11-23 14:26:02,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:02,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:26:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:03,179 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-23 14:26:03,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:26:03,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694579617] [2022-11-23 14:26:03,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694579617] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:26:03,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687248461] [2022-11-23 14:26:03,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:03,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:26:03,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:26:03,182 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:26:03,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:26:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:03,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-23 14:26:03,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:26:03,565 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 14:26:03,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:26:03,945 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 14:26:03,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687248461] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:26:03,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1014760532] [2022-11-23 14:26:03,949 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2022-11-23 14:26:03,949 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:26:03,949 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:26:03,950 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:26:03,950 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:26:06,011 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 35 for LOIs [2022-11-23 14:26:06,015 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2022-11-23 14:26:06,417 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 29 for LOIs [2022-11-23 14:26:06,471 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2022-11-23 14:26:06,496 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 56 for LOIs [2022-11-23 14:26:06,510 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:26:10,989 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7923#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~11#1| ~waterLevel~0) (= ~head~0.offset 0) (<= |#NULL.offset| 0) (= |timeShift_getWaterLevel_~retValue_acc~11#1| |timeShift_getWaterLevel_#res#1|) (= 1 ~systemActive~0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (<= 0 ~methaneLevelCritical~0) (= |old(~waterLevel~0)| ~waterLevel~0) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 2 |timeShift_getWaterLevel_#res#1|) (<= ~head~0.base 0) (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|) (<= 0 |#NULL.offset|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) (= ~pumpRunning~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 14:26:10,989 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:26:10,989 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:26:10,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2022-11-23 14:26:10,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707912549] [2022-11-23 14:26:10,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:26:10,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-23 14:26:10,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:26:10,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-23 14:26:10,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=1893, Unknown=0, NotChecked=0, Total=2162 [2022-11-23 14:26:10,992 INFO L87 Difference]: Start difference. First operand 294 states and 343 transitions. Second operand has 20 states, 20 states have (on average 5.4) internal successors, (108), 20 states have internal predecessors, (108), 9 states have call successors, (23), 5 states have call predecessors, (23), 8 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) [2022-11-23 14:26:12,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:26:12,749 INFO L93 Difference]: Finished difference Result 859 states and 1094 transitions. [2022-11-23 14:26:12,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-23 14:26:12,750 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.4) internal successors, (108), 20 states have internal predecessors, (108), 9 states have call successors, (23), 5 states have call predecessors, (23), 8 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) Word has length 93 [2022-11-23 14:26:12,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:26:12,753 INFO L225 Difference]: With dead ends: 859 [2022-11-23 14:26:12,754 INFO L226 Difference]: Without dead ends: 559 [2022-11-23 14:26:12,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 249 SyntacticMatches, 11 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2064 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=645, Invalid=4757, Unknown=0, NotChecked=0, Total=5402 [2022-11-23 14:26:12,757 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 523 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:26:12,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 374 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 14:26:12,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-11-23 14:26:12,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 368. [2022-11-23 14:26:12,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 238 states have (on average 1.1302521008403361) internal successors, (269), 261 states have internal predecessors, (269), 63 states have call successors, (63), 56 states have call predecessors, (63), 66 states have return successors, (83), 67 states have call predecessors, (83), 63 states have call successors, (83) [2022-11-23 14:26:12,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 415 transitions. [2022-11-23 14:26:12,802 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 415 transitions. Word has length 93 [2022-11-23 14:26:12,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:26:12,803 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 415 transitions. [2022-11-23 14:26:12,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.4) internal successors, (108), 20 states have internal predecessors, (108), 9 states have call successors, (23), 5 states have call predecessors, (23), 8 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) [2022-11-23 14:26:12,803 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 415 transitions. [2022-11-23 14:26:12,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-23 14:26:12,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:26:12,805 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:26:12,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-23 14:26:13,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:26:13,010 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:26:13,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:26:13,011 INFO L85 PathProgramCache]: Analyzing trace with hash 72161971, now seen corresponding path program 1 times [2022-11-23 14:26:13,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:26:13,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293988935] [2022-11-23 14:26:13,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:13,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:26:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:14,242 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 15 proven. 41 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-23 14:26:14,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:26:14,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293988935] [2022-11-23 14:26:14,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293988935] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:26:14,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828755974] [2022-11-23 14:26:14,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:14,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:26:14,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:26:14,247 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:26:14,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:26:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:14,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-23 14:26:14,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:26:14,916 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 25 proven. 54 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:26:14,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:26:15,856 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 51 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-23 14:26:15,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828755974] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:26:15,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [179425292] [2022-11-23 14:26:15,859 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2022-11-23 14:26:15,859 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:26:15,859 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:26:15,859 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:26:15,860 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:26:18,126 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 35 for LOIs [2022-11-23 14:26:18,129 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2022-11-23 14:26:18,277 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 26 for LOIs [2022-11-23 14:26:18,314 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2022-11-23 14:26:18,334 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 56 for LOIs [2022-11-23 14:26:18,345 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:26:22,941 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10515#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~11#1| ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~11#1| |timeShift_getWaterLevel_#res#1|) (= 1 ~systemActive~0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (= |old(~waterLevel~0)| ~waterLevel~0) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 2 |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) (= ~pumpRunning~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 14:26:22,941 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:26:22,942 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:26:22,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13, 11] total 36 [2022-11-23 14:26:22,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037677744] [2022-11-23 14:26:22,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:26:22,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-23 14:26:22,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:26:22,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-23 14:26:22,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=500, Invalid=3406, Unknown=0, NotChecked=0, Total=3906 [2022-11-23 14:26:22,945 INFO L87 Difference]: Start difference. First operand 368 states and 415 transitions. Second operand has 36 states, 35 states have (on average 4.885714285714286) internal successors, (171), 36 states have internal predecessors, (171), 19 states have call successors, (37), 9 states have call predecessors, (37), 13 states have return successors, (36), 21 states have call predecessors, (36), 18 states have call successors, (36) [2022-11-23 14:26:26,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:26:26,746 INFO L93 Difference]: Finished difference Result 901 states and 1050 transitions. [2022-11-23 14:26:26,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-23 14:26:26,747 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 4.885714285714286) internal successors, (171), 36 states have internal predecessors, (171), 19 states have call successors, (37), 9 states have call predecessors, (37), 13 states have return successors, (36), 21 states have call predecessors, (36), 18 states have call successors, (36) Word has length 98 [2022-11-23 14:26:26,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:26:26,748 INFO L225 Difference]: With dead ends: 901 [2022-11-23 14:26:26,748 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:26:26,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 268 SyntacticMatches, 11 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4122 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=1497, Invalid=9423, Unknown=0, NotChecked=0, Total=10920 [2022-11-23 14:26:26,753 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 1759 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 1396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 3336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1396 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:26:26,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1759 Valid, 638 Invalid, 3336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1396 Valid, 1940 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-23 14:26:26,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:26:26,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:26:26,754 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) [2022-11-23 14:26:26,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:26:26,755 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2022-11-23 14:26:26,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:26:26,755 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:26:26,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 4.885714285714286) internal successors, (171), 36 states have internal predecessors, (171), 19 states have call successors, (37), 9 states have call predecessors, (37), 13 states have return successors, (36), 21 states have call predecessors, (36), 18 states have call successors, (36) [2022-11-23 14:26:26,756 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:26:26,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:26:26,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:26:26,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:26:26,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:26:26,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:26:33,290 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 551 558) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-23 14:26:33,291 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 551 558) no Hoare annotation was computed. [2022-11-23 14:26:33,291 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 458 464) no Hoare annotation was computed. [2022-11-23 14:26:33,291 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 458 464) the Hoare annotation is: true [2022-11-23 14:26:33,291 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 943 954) the Hoare annotation is: true [2022-11-23 14:26:33,291 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 943 954) no Hoare annotation was computed. [2022-11-23 14:26:33,291 INFO L899 garLoopResultBuilder]: For program point L833(line 833) no Hoare annotation was computed. [2022-11-23 14:26:33,291 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 812 841) no Hoare annotation was computed. [2022-11-23 14:26:33,291 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 812 841) the Hoare annotation is: true [2022-11-23 14:26:33,292 INFO L899 garLoopResultBuilder]: For program point L826(lines 826 830) no Hoare annotation was computed. [2022-11-23 14:26:33,292 INFO L902 garLoopResultBuilder]: At program point L826-1(lines 826 830) the Hoare annotation is: true [2022-11-23 14:26:33,292 INFO L902 garLoopResultBuilder]: At program point L822-2(lines 822 836) the Hoare annotation is: true [2022-11-23 14:26:33,292 INFO L902 garLoopResultBuilder]: At program point L818(line 818) the Hoare annotation is: true [2022-11-23 14:26:33,292 INFO L899 garLoopResultBuilder]: For program point L818-1(line 818) no Hoare annotation was computed. [2022-11-23 14:26:33,292 INFO L902 garLoopResultBuilder]: At program point L837(lines 812 841) the Hoare annotation is: true [2022-11-23 14:26:33,292 INFO L895 garLoopResultBuilder]: At program point L791(line 791) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse6 (= ~pumpRunning~0 1)) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (<= 1 ~switchedOnBeforeTS~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and .cse1 (<= ~waterLevel~0 1) .cse2 .cse3) (not (< |old(~waterLevel~0)| 3))) (let ((.cse4 (= ~waterLevel~0 1))) (or .cse0 (and .cse2 .cse4 .cse5 .cse6) .cse7 (and .cse1 .cse2 .cse4 .cse5) (not (= |old(~waterLevel~0)| 2)))) (let ((.cse9 (< 0 |old(~waterLevel~0)|))) (let ((.cse8 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse9))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and (<= ~waterLevel~0 0) .cse2 (or .cse8 .cse3) .cse5 .cse6) .cse7 (and .cse1 .cse2 (or (and (not .cse9) .cse3) .cse8) .cse5) (not (<= 1 |old(~switchedOnBeforeTS~0)|))))))) [2022-11-23 14:26:33,293 INFO L899 garLoopResultBuilder]: For program point L791-1(line 791) no Hoare annotation was computed. [2022-11-23 14:26:33,293 INFO L895 garLoopResultBuilder]: At program point L445-1(lines 445 451) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= ~pumpRunning~0 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (<= 1 ~switchedOnBeforeTS~0))) (and (let ((.cse2 (= ~waterLevel~0 1))) (or .cse0 .cse1 (and .cse2 .cse3 .cse4) (not (= |old(~waterLevel~0)| 2)) (and .cse5 .cse2 .cse3))) (or (and (= 2 ~waterLevel~0) .cse6 .cse4) (not (= |old(~pumpRunning~0)| 0)) (and .cse5 .cse6) .cse0 (not (< |old(~waterLevel~0)| 3))) (let ((.cse8 (< 0 |old(~waterLevel~0)|))) (let ((.cse7 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse8))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (<= ~waterLevel~0 0) (or .cse7 .cse6) .cse3 .cse4) (not (<= 1 |old(~switchedOnBeforeTS~0)|)) (and .cse5 (or (and (not .cse8) .cse6) .cse7) .cse3)))))) [2022-11-23 14:26:33,293 INFO L895 garLoopResultBuilder]: At program point L532(line 532) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2 .cse3) .cse1 .cse4) (or .cse0 .cse1 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse2 .cse3) (not (<= |old(~waterLevel~0)| 0)) .cse4) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))))) [2022-11-23 14:26:33,294 INFO L895 garLoopResultBuilder]: At program point L528(line 528) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2 .cse3) .cse1 .cse4) (or .cse0 .cse1 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse2 .cse3) (not (<= |old(~waterLevel~0)| 0)) .cse4) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))))) [2022-11-23 14:26:33,294 INFO L895 garLoopResultBuilder]: At program point L912(line 912) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2))) (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse2))) [2022-11-23 14:26:33,294 INFO L895 garLoopResultBuilder]: At program point L776(line 776) the Hoare annotation is: (let ((.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse5 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (and .cse7 (= ~pumpRunning~0 1)))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3 .cse5) (or .cse6 (and (= ~pumpRunning~0 0) .cse7) .cse0 .cse5) (or .cse6 .cse0 .cse4 .cse3 .cse5) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2)) .cse2)))) [2022-11-23 14:26:33,295 INFO L895 garLoopResultBuilder]: At program point L776-1(line 776) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= 1 ~systemActive~0))) (let ((.cse1 (not .cse4)) (.cse2 (and (<= 1 |timeShift___utac_acc__Specification5_spec__2_#t~ret46#1|) .cse4 .cse0 (< ~waterLevel~0 3) (= ~pumpRunning~0 1))) (.cse3 (not (= |old(~pumpRunning~0)| 1)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0) .cse1 (not (< |old(~waterLevel~0)| 3))) (or .cse1 .cse2 .cse3 (not (= |old(~waterLevel~0)| 2))) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse2 .cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|)))))) [2022-11-23 14:26:33,295 INFO L895 garLoopResultBuilder]: At program point L537(line 537) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2))) (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse2))) [2022-11-23 14:26:33,295 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 803) no Hoare annotation was computed. [2022-11-23 14:26:33,296 INFO L895 garLoopResultBuilder]: At program point L537-1(lines 518 542) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= ~pumpRunning~0 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (<= 1 ~switchedOnBeforeTS~0))) (and (let ((.cse2 (= ~waterLevel~0 1))) (or .cse0 .cse1 (and .cse2 .cse3 .cse4) (not (= |old(~waterLevel~0)| 2)) (and .cse5 .cse2 .cse3))) (or (and (= 2 ~waterLevel~0) .cse6 .cse4) (not (= |old(~pumpRunning~0)| 0)) (and .cse5 .cse6) .cse0 (not (< |old(~waterLevel~0)| 3))) (let ((.cse8 (< 0 |old(~waterLevel~0)|))) (let ((.cse7 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse8))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (<= ~waterLevel~0 0) (or .cse7 .cse6) .cse3 .cse4) (not (<= 1 |old(~switchedOnBeforeTS~0)|)) (and .cse5 (or (and (not .cse8) .cse6) .cse7) .cse3)))))) [2022-11-23 14:26:33,296 INFO L899 garLoopResultBuilder]: For program point L789(lines 789 806) no Hoare annotation was computed. [2022-11-23 14:26:33,296 INFO L899 garLoopResultBuilder]: For program point L438-2(lines 434 456) no Hoare annotation was computed. [2022-11-23 14:26:33,296 INFO L895 garLoopResultBuilder]: At program point L789-1(lines 781 809) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0))) (let ((.cse4 (= ~pumpRunning~0 0)) (.cse3 (not .cse5)) (.cse0 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (<= 1 ~switchedOnBeforeTS~0)) (.cse2 (= ~pumpRunning~0 1)) (.cse8 (not (= |old(~pumpRunning~0)| 1)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2) .cse2) .cse3 (and .cse4 .cse5 .cse0 .cse1) (not (< |old(~waterLevel~0)| 3))) (let ((.cse6 (= ~waterLevel~0 1))) (or (and .cse4 .cse5 .cse0 .cse6 .cse7) .cse3 (and .cse0 .cse6 .cse7 .cse2) .cse8 (not (= |old(~waterLevel~0)| 2)))) (let ((.cse9 (< 0 |old(~waterLevel~0)|))) (let ((.cse10 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse9))) (or (and .cse4 .cse5 .cse0 (or (and (not .cse9) .cse1) .cse10) .cse7) (not (<= |old(~waterLevel~0)| 1)) .cse3 (and (<= ~waterLevel~0 0) .cse0 (or .cse10 .cse1) .cse7 .cse2) .cse8 (not (<= 1 |old(~switchedOnBeforeTS~0)|)))))))) [2022-11-23 14:26:33,297 INFO L899 garLoopResultBuilder]: For program point L794(lines 794 800) no Hoare annotation was computed. [2022-11-23 14:26:33,297 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 431 457) the Hoare annotation is: (let ((.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse5 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (and .cse7 (= ~pumpRunning~0 1)))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3 .cse5) (or .cse6 (and (= ~pumpRunning~0 0) .cse7) .cse0 .cse5) (or .cse6 .cse0 .cse4 .cse3 .cse5) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2)) .cse2)))) [2022-11-23 14:26:33,297 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 534) no Hoare annotation was computed. [2022-11-23 14:26:33,297 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 431 457) no Hoare annotation was computed. [2022-11-23 14:26:33,298 INFO L895 garLoopResultBuilder]: At program point L522(lines 522 539) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse4) .cse0 (not (< |old(~waterLevel~0)| 3))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) .cse4) .cse2 .cse3) (not (<= 1 |old(~switchedOnBeforeTS~0)|))))) [2022-11-23 14:26:33,298 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 912) no Hoare annotation was computed. [2022-11-23 14:26:33,298 INFO L895 garLoopResultBuilder]: At program point L894(lines 894 901) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-23 14:26:33,298 INFO L902 garLoopResultBuilder]: At program point L894-2(lines 894 901) the Hoare annotation is: true [2022-11-23 14:26:33,298 INFO L899 garLoopResultBuilder]: For program point L725(lines 725 731) no Hoare annotation was computed. [2022-11-23 14:26:33,299 INFO L899 garLoopResultBuilder]: For program point L725-1(lines 725 731) no Hoare annotation was computed. [2022-11-23 14:26:33,299 INFO L902 garLoopResultBuilder]: At program point L754(lines 695 758) the Hoare annotation is: true [2022-11-23 14:26:33,299 INFO L895 garLoopResultBuilder]: At program point L717(line 717) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) (< ~waterLevel~0 3) .cse2) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= ~waterLevel~0 2)) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2))) [2022-11-23 14:26:33,299 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 14:26:33,299 INFO L895 garLoopResultBuilder]: At program point L751(lines 704 752) the Hoare annotation is: false [2022-11-23 14:26:33,299 INFO L899 garLoopResultBuilder]: For program point L706(lines 705 750) no Hoare annotation was computed. [2022-11-23 14:26:33,300 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:26:33,300 INFO L895 garLoopResultBuilder]: At program point L727(line 727) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 3)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2 .cse3) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse3))) [2022-11-23 14:26:33,300 INFO L895 garLoopResultBuilder]: At program point L748(lines 705 750) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 3)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2 .cse3) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse3))) [2022-11-23 14:26:33,300 INFO L899 garLoopResultBuilder]: For program point L715(lines 715 721) no Hoare annotation was computed. [2022-11-23 14:26:33,300 INFO L899 garLoopResultBuilder]: For program point L715-1(lines 715 721) no Hoare annotation was computed. [2022-11-23 14:26:33,301 INFO L895 garLoopResultBuilder]: At program point L741-2(lines 735 746) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 3)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2 .cse3) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse3))) [2022-11-23 14:26:33,301 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 466 490) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-23 14:26:33,301 INFO L895 garLoopResultBuilder]: At program point L480(line 480) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (or (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0))) .cse0 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2))) [2022-11-23 14:26:33,301 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 466 490) no Hoare annotation was computed. [2022-11-23 14:26:33,302 INFO L895 garLoopResultBuilder]: At program point L474(lines 474 482) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (or (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0))) .cse0 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2))) [2022-11-23 14:26:33,302 INFO L895 garLoopResultBuilder]: At program point L470(lines 470 487) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-23 14:26:33,302 INFO L895 garLoopResultBuilder]: At program point L485(line 485) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-23 14:26:33,302 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 466 490) no Hoare annotation was computed. [2022-11-23 14:26:33,303 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 931 942) no Hoare annotation was computed. [2022-11-23 14:26:33,303 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 931 942) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~pumpRunning~0 1))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2) (or .cse0 .cse3 (not (= |old(~waterLevel~0)| 2)) .cse1) (or .cse0 .cse3 .cse1 (not (<= 1 ~switchedOnBeforeTS~0)) .cse2))) [2022-11-23 14:26:33,303 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 492 516) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-23 14:26:33,303 INFO L895 garLoopResultBuilder]: At program point L506(line 506) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-23 14:26:33,304 INFO L895 garLoopResultBuilder]: At program point L502(line 502) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-23 14:26:33,304 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 508) no Hoare annotation was computed. [2022-11-23 14:26:33,304 INFO L895 garLoopResultBuilder]: At program point L496(lines 496 513) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-23 14:26:33,304 INFO L895 garLoopResultBuilder]: At program point L511(line 511) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2))) [2022-11-23 14:26:33,305 INFO L899 garLoopResultBuilder]: For program point L511-1(lines 492 516) no Hoare annotation was computed. [2022-11-23 14:26:33,305 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 492 516) no Hoare annotation was computed. [2022-11-23 14:26:33,305 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 570 578) no Hoare annotation was computed. [2022-11-23 14:26:33,305 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 570 578) the Hoare annotation is: true [2022-11-23 14:26:33,309 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:26:33,311 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:26:33,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:26:33 BoogieIcfgContainer [2022-11-23 14:26:33,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:26:33,350 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:26:33,350 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:26:33,351 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:26:33,351 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:45" (3/4) ... [2022-11-23 14:26:33,359 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:26:33,366 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-23 14:26:33,366 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 14:26:33,366 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 14:26:33,366 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 14:26:33,366 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 14:26:33,367 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 14:26:33,367 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 14:26:33,367 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-11-23 14:26:33,367 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-23 14:26:33,378 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2022-11-23 14:26:33,380 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-23 14:26:33,380 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 14:26:33,381 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:26:33,381 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:26:33,415 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) && (((!(1 == systemActive) || ((((1 <= aux-isPumpRunning()-aux && 1 == systemActive) && \old(waterLevel) == waterLevel) && waterLevel < 3) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || ((((1 <= aux-isPumpRunning()-aux && 1 == systemActive) && \old(waterLevel) == waterLevel) && waterLevel < 3) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) [2022-11-23 14:26:33,416 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && ((((((2 == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS)) [2022-11-23 14:26:33,418 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || (((tmp == waterLevel && \old(waterLevel) == waterLevel) && tmp == 2) && pumpRunning == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3)) && ((((((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || !(1 == systemActive)) || (((tmp == waterLevel && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && (((((((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || ((((waterLevel <= 0 && tmp == waterLevel) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) [2022-11-23 14:26:33,418 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) [2022-11-23 14:26:33,419 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) [2022-11-23 14:26:33,419 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && ((((((2 == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS)) [2022-11-23 14:26:33,419 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) [2022-11-23 14:26:33,419 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) [2022-11-23 14:26:33,428 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && (2 <= waterLevel || tmp == 0))) || !(1 == systemActive)) || !(waterLevel < 3)) && (((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS))) && (((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) [2022-11-23 14:26:33,478 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:26:33,479 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:26:33,479 INFO L158 Benchmark]: Toolchain (without parser) took 49133.82ms. Allocated memory was 172.0MB in the beginning and 522.2MB in the end (delta: 350.2MB). Free memory was 142.0MB in the beginning and 362.9MB in the end (delta: -220.9MB). Peak memory consumption was 129.1MB. Max. memory is 16.1GB. [2022-11-23 14:26:33,480 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:26:33,480 INFO L158 Benchmark]: CACSL2BoogieTranslator took 539.41ms. Allocated memory is still 172.0MB. Free memory was 141.8MB in the beginning and 125.8MB in the end (delta: 16.0MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-11-23 14:26:33,480 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.85ms. Allocated memory is still 172.0MB. Free memory was 125.8MB in the beginning and 123.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:26:33,481 INFO L158 Benchmark]: Boogie Preprocessor took 48.46ms. Allocated memory is still 172.0MB. Free memory was 123.7MB in the beginning and 121.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:26:33,482 INFO L158 Benchmark]: RCFGBuilder took 770.29ms. Allocated memory is still 172.0MB. Free memory was 121.6MB in the beginning and 95.1MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 14:26:33,483 INFO L158 Benchmark]: TraceAbstraction took 47587.26ms. Allocated memory was 172.0MB in the beginning and 522.2MB in the end (delta: 350.2MB). Free memory was 94.4MB in the beginning and 369.2MB in the end (delta: -274.8MB). Peak memory consumption was 271.2MB. Max. memory is 16.1GB. [2022-11-23 14:26:33,483 INFO L158 Benchmark]: Witness Printer took 128.87ms. Allocated memory is still 522.2MB. Free memory was 369.2MB in the beginning and 362.9MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:26:33,486 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 539.41ms. Allocated memory is still 172.0MB. Free memory was 141.8MB in the beginning and 125.8MB in the end (delta: 16.0MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.85ms. Allocated memory is still 172.0MB. Free memory was 125.8MB in the beginning and 123.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.46ms. Allocated memory is still 172.0MB. Free memory was 123.7MB in the beginning and 121.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 770.29ms. Allocated memory is still 172.0MB. Free memory was 121.6MB in the beginning and 95.1MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 47587.26ms. Allocated memory was 172.0MB in the beginning and 522.2MB in the end (delta: 350.2MB). Free memory was 94.4MB in the beginning and 369.2MB in the end (delta: -274.8MB). Peak memory consumption was 271.2MB. Max. memory is 16.1GB. * Witness Printer took 128.87ms. Allocated memory is still 522.2MB. Free memory was 369.2MB in the beginning and 362.9MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 912]: 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 10 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 47.5s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3005 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2982 mSDsluCounter, 2983 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2111 mSDsCounter, 2031 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4524 IncrementalHoareTripleChecker+Invalid, 6555 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2031 mSolverCounterUnsat, 872 mSDtfsCounter, 4524 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1100 GetRequests, 791 SyntacticMatches, 34 SemanticMatches, 275 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7687 ImplicationChecksByTransitivity, 19.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=368occurred in iteration=10, InterpolantAutomatonStates: 141, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 314 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 1400 PreInvPairs, 1588 NumberOfFragments, 2056 HoareAnnotationTreeSize, 1400 FomulaSimplifications, 5681 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 41 FomulaSimplificationsInter, 24906 FormulaSimplificationTreeSizeReductionInter, 5.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 897 NumberOfCodeBlocks, 897 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1144 ConstructedInterpolants, 0 QuantifiedInterpolants, 3365 SizeOfPredicates, 29 NumberOfNonLiveVariables, 1492 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 464/618 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: 518]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && ((((((2 == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 812]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel < 3) || ((((1 == systemActive && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && waterLevel < 3) && pumpRunning == 1)) || (((2 == waterLevel && 1 == systemActive) && splverifierCounter == 0) && pumpRunning == 1) - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && ((((((2 == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS)) - InvariantResult [Line: 704]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) - InvariantResult [Line: 781]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || (((tmp == waterLevel && \old(waterLevel) == waterLevel) && tmp == 2) && pumpRunning == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3)) && ((((((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || !(1 == systemActive)) || (((tmp == waterLevel && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && (((((((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || ((((waterLevel <= 0 && tmp == waterLevel) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 912]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) && (((!(1 == systemActive) || ((((1 <= aux-isPumpRunning()-aux && 1 == systemActive) && \old(waterLevel) == waterLevel) && waterLevel < 3) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || ((((1 <= aux-isPumpRunning()-aux && 1 == systemActive) && \old(waterLevel) == waterLevel) && waterLevel < 3) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 470]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) - InvariantResult [Line: 822]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 894]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 522]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 894]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && (2 <= waterLevel || tmp == 0))) || !(1 == systemActive)) || !(waterLevel < 3)) && (((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS))) && (((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) RESULT: Ultimate proved your program to be correct! [2022-11-23 14:26:33,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede4ac54-c9ad-4824-a992-0e2411173ddf/bin/utaipan-Q6hlc19bkW/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