./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/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_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/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_2ea349fd-babc-43df-92e2-44850c108557/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 31801b0d0a8db366707af3e7371b9dc02f7c34625c63f4c3f856015d4449b4b2 --- 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 15:36:19,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:36:19,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:36:19,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:36:19,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:36:19,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:36:19,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:36:19,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:36:19,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:36:19,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:36:19,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:36:19,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:36:19,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:36:19,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:36:19,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:36:19,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:36:19,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:36:19,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:36:19,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:36:19,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:36:19,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:36:19,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:36:19,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:36:19,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:36:19,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:36:19,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:36:19,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:36:19,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:36:19,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:36:19,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:36:19,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:36:19,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:36:19,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:36:19,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:36:19,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:36:19,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:36:19,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:36:19,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:36:19,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:36:19,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:36:19,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:36:19,539 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:36:19,587 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:36:19,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:36:19,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:36:19,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:36:19,590 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:36:19,590 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:36:19,591 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:36:19,591 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:36:19,591 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:36:19,592 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:36:19,593 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:36:19,593 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:36:19,594 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:36:19,594 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:36:19,594 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:36:19,594 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:36:19,595 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:36:19,595 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:36:19,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:36:19,597 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:36:19,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:36:19,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:36:19,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:36:19,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:36:19,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:36:19,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:36:19,599 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:36:19,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:36:19,600 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:36:19,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:36:19,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:36:19,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:36:19,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:36:19,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:36:19,602 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:36:19,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:36:19,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:36:19,603 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:36:19,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:36:19,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:36:19,604 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:36:19,604 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_2ea349fd-babc-43df-92e2-44850c108557/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31801b0d0a8db366707af3e7371b9dc02f7c34625c63f4c3f856015d4449b4b2 [2022-11-23 15:36:19,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:36:19,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:36:19,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:36:19,931 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:36:19,931 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:36:19,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c [2022-11-23 15:36:23,164 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:36:23,503 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:36:23,504 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c [2022-11-23 15:36:23,516 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/data/06238f88a/c17f0af1ebd34d8683e32b60702429a7/FLAG41219aab5 [2022-11-23 15:36:23,533 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/data/06238f88a/c17f0af1ebd34d8683e32b60702429a7 [2022-11-23 15:36:23,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:36:23,539 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:36:23,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:36:23,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:36:23,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:36:23,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:36:23" (1/1) ... [2022-11-23 15:36:23,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d4912c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:23, skipping insertion in model container [2022-11-23 15:36:23,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:36:23" (1/1) ... [2022-11-23 15:36:23,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:36:23,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:36:23,884 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_2ea349fd-babc-43df-92e2-44850c108557/sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c[17098,17111] [2022-11-23 15:36:23,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:36:23,909 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:36:23,980 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_2ea349fd-babc-43df-92e2-44850c108557/sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c[17098,17111] [2022-11-23 15:36:23,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:36:24,005 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:36:24,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:24 WrapperNode [2022-11-23 15:36:24,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:36:24,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:36:24,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:36:24,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:36:24,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:24" (1/1) ... [2022-11-23 15:36:24,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:24" (1/1) ... [2022-11-23 15:36:24,058 INFO L138 Inliner]: procedures = 57, calls = 103, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 206 [2022-11-23 15:36:24,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:36:24,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:36:24,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:36:24,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:36:24,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:24" (1/1) ... [2022-11-23 15:36:24,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:24" (1/1) ... [2022-11-23 15:36:24,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:24" (1/1) ... [2022-11-23 15:36:24,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:24" (1/1) ... [2022-11-23 15:36:24,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:24" (1/1) ... [2022-11-23 15:36:24,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:24" (1/1) ... [2022-11-23 15:36:24,104 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:24" (1/1) ... [2022-11-23 15:36:24,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:24" (1/1) ... [2022-11-23 15:36:24,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:36:24,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:36:24,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:36:24,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:36:24,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:24" (1/1) ... [2022-11-23 15:36:24,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:36:24,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:36:24,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:36:24,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:36:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:36:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 15:36:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 15:36:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 15:36:24,210 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 15:36:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 15:36:24,210 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 15:36:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 15:36:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 15:36:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 15:36:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 15:36:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-23 15:36:24,212 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-23 15:36:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-23 15:36:24,212 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-23 15:36:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:36:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 15:36:24,213 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 15:36:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:36:24,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:36:24,319 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:36:24,322 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:36:24,700 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:36:24,869 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:36:24,869 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:36:24,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:36:24 BoogieIcfgContainer [2022-11-23 15:36:24,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:36:24,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:36:24,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:36:24,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:36:24,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:36:23" (1/3) ... [2022-11-23 15:36:24,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121868f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:36:24, skipping insertion in model container [2022-11-23 15:36:24,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:24" (2/3) ... [2022-11-23 15:36:24,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121868f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:36:24, skipping insertion in model container [2022-11-23 15:36:24,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:36:24" (3/3) ... [2022-11-23 15:36:24,892 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product40.cil.c [2022-11-23 15:36:24,910 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:36:24,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:36:24,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:36:24,994 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;@49e3f28b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:36:24,995 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:36:24,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-23 15:36:25,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:36:25,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:36:25,011 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 15:36:25,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:36:25,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:36:25,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1320828435, now seen corresponding path program 1 times [2022-11-23 15:36:25,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:36:25,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288618242] [2022-11-23 15:36:25,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:25,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:36:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:25,236 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 15:36:25,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:36:25,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288618242] [2022-11-23 15:36:25,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288618242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:36:25,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:36:25,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:36:25,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828306657] [2022-11-23 15:36:25,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:36:25,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:36:25,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:36:25,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:36:25,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:36:25,318 INFO L87 Difference]: Start difference. First operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) 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 15:36:25,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:36:25,418 INFO L93 Difference]: Finished difference Result 130 states and 179 transitions. [2022-11-23 15:36:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:36:25,425 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 15:36:25,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:36:25,435 INFO L225 Difference]: With dead ends: 130 [2022-11-23 15:36:25,436 INFO L226 Difference]: Without dead ends: 61 [2022-11-23 15:36:25,442 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 15:36:25,448 INFO L413 NwaCegarLoop]: 68 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, 68 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 15:36:25,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:36:25,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-23 15:36:25,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-23 15:36:25,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-23 15:36:25,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2022-11-23 15:36:25,501 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 21 [2022-11-23 15:36:25,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:36:25,502 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2022-11-23 15:36:25,502 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 15:36:25,502 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2022-11-23 15:36:25,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 15:36:25,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:36:25,505 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:36:25,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:36:25,506 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:36:25,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:36:25,507 INFO L85 PathProgramCache]: Analyzing trace with hash -346590503, now seen corresponding path program 1 times [2022-11-23 15:36:25,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:36:25,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699377567] [2022-11-23 15:36:25,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:25,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:36:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:25,676 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 15:36:25,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:36:25,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699377567] [2022-11-23 15:36:25,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699377567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:36:25,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:36:25,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:36:25,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127657487] [2022-11-23 15:36:25,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:36:25,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:36:25,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:36:25,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:36:25,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:36:25,689 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:36:25,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:36:25,778 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2022-11-23 15:36:25,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:36:25,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-23 15:36:25,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:36:25,784 INFO L225 Difference]: With dead ends: 94 [2022-11-23 15:36:25,784 INFO L226 Difference]: Without dead ends: 53 [2022-11-23 15:36:25,785 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 15:36:25,787 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 14 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:36:25,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 92 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:36:25,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-23 15:36:25,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-23 15:36:25,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 15:36:25,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2022-11-23 15:36:25,802 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 22 [2022-11-23 15:36:25,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:36:25,802 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2022-11-23 15:36:25,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:36:25,803 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2022-11-23 15:36:25,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-23 15:36:25,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:36:25,804 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] [2022-11-23 15:36:25,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:36:25,805 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:36:25,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:36:25,809 INFO L85 PathProgramCache]: Analyzing trace with hash -840745623, now seen corresponding path program 1 times [2022-11-23 15:36:25,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:36:25,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840180425] [2022-11-23 15:36:25,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:25,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:36:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:26,038 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 15:36:26,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:36:26,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840180425] [2022-11-23 15:36:26,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840180425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:36:26,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:36:26,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:36:26,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685536997] [2022-11-23 15:36:26,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:36:26,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:36:26,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:36:26,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:36:26,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:36:26,041 INFO L87 Difference]: Start difference. First operand 53 states and 69 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 15:36:26,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:36:26,148 INFO L93 Difference]: Finished difference Result 140 states and 183 transitions. [2022-11-23 15:36:26,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:36:26,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 25 [2022-11-23 15:36:26,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:36:26,151 INFO L225 Difference]: With dead ends: 140 [2022-11-23 15:36:26,151 INFO L226 Difference]: Without dead ends: 89 [2022-11-23 15:36:26,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:36:26,154 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 90 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:36:26,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 146 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:36:26,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-23 15:36:26,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2022-11-23 15:36:26,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 56 states have (on average 1.375) internal successors, (77), 67 states have internal predecessors, (77), 17 states have call successors, (17), 12 states have call predecessors, (17), 12 states have return successors, (18), 13 states have call predecessors, (18), 17 states have call successors, (18) [2022-11-23 15:36:26,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 112 transitions. [2022-11-23 15:36:26,173 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 112 transitions. Word has length 25 [2022-11-23 15:36:26,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:36:26,173 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 112 transitions. [2022-11-23 15:36:26,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 15:36:26,174 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 112 transitions. [2022-11-23 15:36:26,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 15:36:26,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:36:26,176 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] [2022-11-23 15:36:26,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:36:26,177 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:36:26,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:36:26,177 INFO L85 PathProgramCache]: Analyzing trace with hash 470425358, now seen corresponding path program 1 times [2022-11-23 15:36:26,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:36:26,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138916643] [2022-11-23 15:36:26,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:26,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:36:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:26,489 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 15:36:26,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:36:26,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138916643] [2022-11-23 15:36:26,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138916643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:36:26,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:36:26,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:36:26,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265095889] [2022-11-23 15:36:26,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:36:26,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:36:26,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:36:26,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:36:26,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:36:26,496 INFO L87 Difference]: Start difference. First operand 86 states and 112 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:36:27,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:36:27,245 INFO L93 Difference]: Finished difference Result 325 states and 466 transitions. [2022-11-23 15:36:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 15:36:27,246 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2022-11-23 15:36:27,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:36:27,250 INFO L225 Difference]: With dead ends: 325 [2022-11-23 15:36:27,250 INFO L226 Difference]: Without dead ends: 241 [2022-11-23 15:36:27,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-11-23 15:36:27,254 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 111 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:36:27,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 550 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:36:27,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-11-23 15:36:27,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 220. [2022-11-23 15:36:27,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 147 states have (on average 1.3061224489795917) internal successors, (192), 166 states have internal predecessors, (192), 39 states have call successors, (39), 32 states have call predecessors, (39), 33 states have return successors, (64), 35 states have call predecessors, (64), 39 states have call successors, (64) [2022-11-23 15:36:27,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 295 transitions. [2022-11-23 15:36:27,308 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 295 transitions. Word has length 28 [2022-11-23 15:36:27,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:36:27,308 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 295 transitions. [2022-11-23 15:36:27,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:36:27,309 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 295 transitions. [2022-11-23 15:36:27,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 15:36:27,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:36:27,312 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] [2022-11-23 15:36:27,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:36:27,312 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:36:27,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:36:27,313 INFO L85 PathProgramCache]: Analyzing trace with hash 988208288, now seen corresponding path program 1 times [2022-11-23 15:36:27,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:36:27,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078626001] [2022-11-23 15:36:27,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:27,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:36:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:27,574 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 15:36:27,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:36:27,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078626001] [2022-11-23 15:36:27,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078626001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:36:27,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:36:27,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:36:27,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664150921] [2022-11-23 15:36:27,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:36:27,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:36:27,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:36:27,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:36:27,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:36:27,577 INFO L87 Difference]: Start difference. First operand 220 states and 295 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 15:36:28,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:36:28,016 INFO L93 Difference]: Finished difference Result 756 states and 1077 transitions. [2022-11-23 15:36:28,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:36:28,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2022-11-23 15:36:28,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:36:28,024 INFO L225 Difference]: With dead ends: 756 [2022-11-23 15:36:28,024 INFO L226 Difference]: Without dead ends: 538 [2022-11-23 15:36:28,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:36:28,028 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 153 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:36:28,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 313 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:36:28,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-11-23 15:36:28,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 446. [2022-11-23 15:36:28,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 301 states have (on average 1.3255813953488371) internal successors, (399), 336 states have internal predecessors, (399), 77 states have call successors, (77), 66 states have call predecessors, (77), 67 states have return successors, (137), 67 states have call predecessors, (137), 77 states have call successors, (137) [2022-11-23 15:36:28,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 613 transitions. [2022-11-23 15:36:28,164 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 613 transitions. Word has length 33 [2022-11-23 15:36:28,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:36:28,164 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 613 transitions. [2022-11-23 15:36:28,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 15:36:28,165 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 613 transitions. [2022-11-23 15:36:28,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-23 15:36:28,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:36:28,168 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] [2022-11-23 15:36:28,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:36:28,169 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:36:28,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:36:28,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1221890422, now seen corresponding path program 1 times [2022-11-23 15:36:28,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:36:28,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412636363] [2022-11-23 15:36:28,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:28,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:36:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:28,467 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 15:36:28,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:36:28,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412636363] [2022-11-23 15:36:28,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412636363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:36:28,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:36:28,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:36:28,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467422608] [2022-11-23 15:36:28,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:36:28,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:36:28,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:36:28,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:36:28,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:36:28,473 INFO L87 Difference]: Start difference. First operand 446 states and 613 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:36:29,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:36:29,400 INFO L93 Difference]: Finished difference Result 1426 states and 2086 transitions. [2022-11-23 15:36:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 15:36:29,401 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 36 [2022-11-23 15:36:29,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:36:29,409 INFO L225 Difference]: With dead ends: 1426 [2022-11-23 15:36:29,409 INFO L226 Difference]: Without dead ends: 993 [2022-11-23 15:36:29,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-23 15:36:29,414 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 234 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:36:29,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 353 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:36:29,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2022-11-23 15:36:29,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 836. [2022-11-23 15:36:29,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 572 states have (on average 1.3024475524475525) internal successors, (745), 634 states have internal predecessors, (745), 135 states have call successors, (135), 112 states have call predecessors, (135), 128 states have return successors, (248), 130 states have call predecessors, (248), 135 states have call successors, (248) [2022-11-23 15:36:29,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1128 transitions. [2022-11-23 15:36:29,584 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1128 transitions. Word has length 36 [2022-11-23 15:36:29,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:36:29,584 INFO L495 AbstractCegarLoop]: Abstraction has 836 states and 1128 transitions. [2022-11-23 15:36:29,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:36:29,585 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1128 transitions. [2022-11-23 15:36:29,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-23 15:36:29,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:36:29,590 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:36:29,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:36:29,591 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:36:29,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:36:29,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1922783477, now seen corresponding path program 1 times [2022-11-23 15:36:29,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:36:29,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240303209] [2022-11-23 15:36:29,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:29,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:36:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:29,640 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-23 15:36:29,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:36:29,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240303209] [2022-11-23 15:36:29,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240303209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:36:29,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:36:29,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:36:29,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162491917] [2022-11-23 15:36:29,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:36:29,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:36:29,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:36:29,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:36:29,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:36:29,643 INFO L87 Difference]: Start difference. First operand 836 states and 1128 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-23 15:36:29,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:36:29,858 INFO L93 Difference]: Finished difference Result 1669 states and 2250 transitions. [2022-11-23 15:36:29,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:36:29,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 60 [2022-11-23 15:36:29,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:36:29,864 INFO L225 Difference]: With dead ends: 1669 [2022-11-23 15:36:29,864 INFO L226 Difference]: Without dead ends: 846 [2022-11-23 15:36:29,867 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 15:36:29,868 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 36 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:36:29,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 129 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:36:29,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2022-11-23 15:36:29,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 836. [2022-11-23 15:36:29,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 572 states have (on average 1.284965034965035) internal successors, (735), 634 states have internal predecessors, (735), 135 states have call successors, (135), 112 states have call predecessors, (135), 128 states have return successors, (200), 130 states have call predecessors, (200), 135 states have call successors, (200) [2022-11-23 15:36:30,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1070 transitions. [2022-11-23 15:36:30,005 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1070 transitions. Word has length 60 [2022-11-23 15:36:30,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:36:30,005 INFO L495 AbstractCegarLoop]: Abstraction has 836 states and 1070 transitions. [2022-11-23 15:36:30,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-23 15:36:30,006 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1070 transitions. [2022-11-23 15:36:30,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 15:36:30,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:36:30,009 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:36:30,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:36:30,010 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:36:30,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:36:30,010 INFO L85 PathProgramCache]: Analyzing trace with hash 755745471, now seen corresponding path program 1 times [2022-11-23 15:36:30,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:36:30,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414993547] [2022-11-23 15:36:30,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:30,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:36:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:30,324 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 15:36:30,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:36:30,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414993547] [2022-11-23 15:36:30,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414993547] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:36:30,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114941792] [2022-11-23 15:36:30,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:30,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:36:30,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:36:30,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:36:30,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:36:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:30,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-23 15:36:30,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:36:30,757 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:36:30,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:36:31,321 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 15:36:31,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114941792] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:36:31,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1768957297] [2022-11-23 15:36:31,345 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2022-11-23 15:36:31,345 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:36:31,349 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:36:31,356 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:36:31,356 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:36:35,661 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 131 for LOIs [2022-11-23 15:36:35,684 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 48 for LOIs [2022-11-23 15:36:36,135 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 21 for LOIs [2022-11-23 15:36:36,137 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2022-11-23 15:36:36,160 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:36:44,180 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11261#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= 0 |old(~pumpRunning~0)|) (<= 0 ~systemActive~0) (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (<= |#NULL.offset| 0) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 1) (<= |old(~pumpRunning~0)| 0) (<= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 0 ~head~0.base) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| |timeShift_getWaterLevel_#res#1|) (<= 0 ~methaneLevelCritical~0) (<= ~head~0.base 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483648)) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (<= 0 |#NULL.offset|) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= 0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 15:36:44,180 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:36:44,180 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:36:44,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 19 [2022-11-23 15:36:44,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089529709] [2022-11-23 15:36:44,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:36:44,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-23 15:36:44,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:36:44,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-23 15:36:44,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=2366, Unknown=0, NotChecked=0, Total=2652 [2022-11-23 15:36:44,184 INFO L87 Difference]: Start difference. First operand 836 states and 1070 transitions. Second operand has 19 states, 17 states have (on average 5.352941176470588) internal successors, (91), 18 states have internal predecessors, (91), 8 states have call successors, (17), 6 states have call predecessors, (17), 7 states have return successors, (16), 7 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-23 15:36:47,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:36:47,193 INFO L93 Difference]: Finished difference Result 2985 states and 4140 transitions. [2022-11-23 15:36:47,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-23 15:36:47,194 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.352941176470588) internal successors, (91), 18 states have internal predecessors, (91), 8 states have call successors, (17), 6 states have call predecessors, (17), 7 states have return successors, (16), 7 states have call predecessors, (16), 8 states have call successors, (16) Word has length 57 [2022-11-23 15:36:47,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:36:47,206 INFO L225 Difference]: With dead ends: 2985 [2022-11-23 15:36:47,207 INFO L226 Difference]: Without dead ends: 2106 [2022-11-23 15:36:47,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 144 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2401 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=757, Invalid=6215, Unknown=0, NotChecked=0, Total=6972 [2022-11-23 15:36:47,214 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 665 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 2203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:36:47,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 980 Invalid, 2203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 15:36:47,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2022-11-23 15:36:47,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 1467. [2022-11-23 15:36:47,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 1013 states have (on average 1.2685093780848964) internal successors, (1285), 1117 states have internal predecessors, (1285), 242 states have call successors, (242), 197 states have call predecessors, (242), 211 states have return successors, (397), 227 states have call predecessors, (397), 242 states have call successors, (397) [2022-11-23 15:36:47,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 1924 transitions. [2022-11-23 15:36:47,397 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 1924 transitions. Word has length 57 [2022-11-23 15:36:47,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:36:47,397 INFO L495 AbstractCegarLoop]: Abstraction has 1467 states and 1924 transitions. [2022-11-23 15:36:47,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.352941176470588) internal successors, (91), 18 states have internal predecessors, (91), 8 states have call successors, (17), 6 states have call predecessors, (17), 7 states have return successors, (16), 7 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-23 15:36:47,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1924 transitions. [2022-11-23 15:36:47,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-23 15:36:47,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:36:47,402 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:36:47,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:36:47,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:36:47,620 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:36:47,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:36:47,621 INFO L85 PathProgramCache]: Analyzing trace with hash -43229371, now seen corresponding path program 1 times [2022-11-23 15:36:47,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:36:47,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228160532] [2022-11-23 15:36:47,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:47,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:36:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:47,730 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 15:36:47,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:36:47,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228160532] [2022-11-23 15:36:47,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228160532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:36:47,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:36:47,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:36:47,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036871171] [2022-11-23 15:36:47,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:36:47,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:36:47,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:36:47,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:36:47,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:36:47,738 INFO L87 Difference]: Start difference. First operand 1467 states and 1924 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-23 15:36:48,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:36:48,195 INFO L93 Difference]: Finished difference Result 3600 states and 4749 transitions. [2022-11-23 15:36:48,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:36:48,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 62 [2022-11-23 15:36:48,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:36:48,211 INFO L225 Difference]: With dead ends: 3600 [2022-11-23 15:36:48,211 INFO L226 Difference]: Without dead ends: 2792 [2022-11-23 15:36:48,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:36:48,218 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 128 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:36:48,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 244 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:36:48,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2022-11-23 15:36:48,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2740. [2022-11-23 15:36:48,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2740 states, 1903 states have (on average 1.2679978980557016) internal successors, (2413), 2083 states have internal predecessors, (2413), 444 states have call successors, (444), 368 states have call predecessors, (444), 392 states have return successors, (662), 424 states have call predecessors, (662), 444 states have call successors, (662) [2022-11-23 15:36:48,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2740 states to 2740 states and 3519 transitions. [2022-11-23 15:36:48,561 INFO L78 Accepts]: Start accepts. Automaton has 2740 states and 3519 transitions. Word has length 62 [2022-11-23 15:36:48,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:36:48,561 INFO L495 AbstractCegarLoop]: Abstraction has 2740 states and 3519 transitions. [2022-11-23 15:36:48,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-23 15:36:48,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2740 states and 3519 transitions. [2022-11-23 15:36:48,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-23 15:36:48,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:36:48,568 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:36:48,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:36:48,568 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:36:48,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:36:48,569 INFO L85 PathProgramCache]: Analyzing trace with hash -761359589, now seen corresponding path program 1 times [2022-11-23 15:36:48,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:36:48,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604632601] [2022-11-23 15:36:48,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:48,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:36:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:49,160 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:36:49,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:36:49,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604632601] [2022-11-23 15:36:49,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604632601] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:36:49,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123787076] [2022-11-23 15:36:49,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:49,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:36:49,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:36:49,163 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:36:49,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:36:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:49,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:36:49,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:36:49,364 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 15:36:49,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:36:49,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123787076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:36:49,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:36:49,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 17 [2022-11-23 15:36:49,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310692365] [2022-11-23 15:36:49,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:36:49,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:36:49,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:36:49,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:36:49,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:36:49,367 INFO L87 Difference]: Start difference. First operand 2740 states and 3519 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-23 15:36:49,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:36:49,895 INFO L93 Difference]: Finished difference Result 5404 states and 6926 transitions. [2022-11-23 15:36:49,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:36:49,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 71 [2022-11-23 15:36:49,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:36:49,906 INFO L225 Difference]: With dead ends: 5404 [2022-11-23 15:36:49,906 INFO L226 Difference]: Without dead ends: 1579 [2022-11-23 15:36:49,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2022-11-23 15:36:49,916 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 88 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:36:49,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 162 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:36:49,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2022-11-23 15:36:50,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1069. [2022-11-23 15:36:50,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 729 states have (on average 1.2277091906721536) internal successors, (895), 806 states have internal predecessors, (895), 177 states have call successors, (177), 153 states have call predecessors, (177), 162 states have return successors, (237), 156 states have call predecessors, (237), 177 states have call successors, (237) [2022-11-23 15:36:50,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1309 transitions. [2022-11-23 15:36:50,096 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1309 transitions. Word has length 71 [2022-11-23 15:36:50,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:36:50,096 INFO L495 AbstractCegarLoop]: Abstraction has 1069 states and 1309 transitions. [2022-11-23 15:36:50,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-23 15:36:50,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1309 transitions. [2022-11-23 15:36:50,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-23 15:36:50,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:36:50,099 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:36:50,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:36:50,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 15:36:50,305 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:36:50,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:36:50,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1292620024, now seen corresponding path program 1 times [2022-11-23 15:36:50,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:36:50,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905418322] [2022-11-23 15:36:50,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:50,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:36:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:50,901 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 15:36:50,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:36:50,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905418322] [2022-11-23 15:36:50,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905418322] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:36:50,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864016483] [2022-11-23 15:36:50,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:50,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:36:50,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:36:50,904 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:36:50,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:36:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:51,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-23 15:36:51,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:36:51,738 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:36:51,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:36:52,785 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 15:36:52,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864016483] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:36:52,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1362410250] [2022-11-23 15:36:52,788 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2022-11-23 15:36:52,789 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:36:52,789 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:36:52,789 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:36:52,790 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:36:55,842 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 53 for LOIs [2022-11-23 15:36:55,860 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 48 for LOIs [2022-11-23 15:36:56,374 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 21 for LOIs [2022-11-23 15:36:56,377 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2022-11-23 15:36:56,401 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:37:02,779 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '38072#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= 0 |old(~pumpRunning~0)|) (<= ~pumpRunning~0 1) (<= 0 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (<= 0 (+ ~waterLevel~0 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 1) (<= |old(~pumpRunning~0)| 0) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= ~waterLevel~0 2147483647) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 0 ~pumpRunning~0) (<= 0 (+ |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483648)) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483647) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= 0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 15:37:02,779 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:37:02,779 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:37:02,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 14] total 34 [2022-11-23 15:37:02,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405207648] [2022-11-23 15:37:02,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:37:02,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-23 15:37:02,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:37:02,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-23 15:37:02,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=3876, Unknown=0, NotChecked=0, Total=4290 [2022-11-23 15:37:02,783 INFO L87 Difference]: Start difference. First operand 1069 states and 1309 transitions. Second operand has 34 states, 31 states have (on average 3.7096774193548385) internal successors, (115), 32 states have internal predecessors, (115), 17 states have call successors, (23), 11 states have call predecessors, (23), 12 states have return successors, (20), 14 states have call predecessors, (20), 17 states have call successors, (20) [2022-11-23 15:37:10,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:37:10,398 INFO L93 Difference]: Finished difference Result 2705 states and 3372 transitions. [2022-11-23 15:37:10,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-11-23 15:37:10,399 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 31 states have (on average 3.7096774193548385) internal successors, (115), 32 states have internal predecessors, (115), 17 states have call successors, (23), 11 states have call predecessors, (23), 12 states have return successors, (20), 14 states have call predecessors, (20), 17 states have call successors, (20) Word has length 62 [2022-11-23 15:37:10,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:37:10,400 INFO L225 Difference]: With dead ends: 2705 [2022-11-23 15:37:10,400 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:37:10,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 143 SyntacticMatches, 9 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8468 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=3161, Invalid=21331, Unknown=0, NotChecked=0, Total=24492 [2022-11-23 15:37:10,413 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 2099 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 1856 mSolverCounterSat, 1426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 3282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1426 IncrementalHoareTripleChecker+Valid, 1856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:37:10,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2106 Valid, 591 Invalid, 3282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1426 Valid, 1856 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-23 15:37:10,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:37:10,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:37:10,415 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 15:37:10,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:37:10,416 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2022-11-23 15:37:10,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:37:10,416 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:37:10,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 31 states have (on average 3.7096774193548385) internal successors, (115), 32 states have internal predecessors, (115), 17 states have call successors, (23), 11 states have call predecessors, (23), 12 states have return successors, (20), 14 states have call predecessors, (20), 17 states have call successors, (20) [2022-11-23 15:37:10,416 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:37:10,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:37:10,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:37:10,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-23 15:37:10,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-23 15:37:10,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:38:06,008 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 160 167) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (= |old(~pumpRunning~0)| 0) (not (< ~waterLevel~0 3))) [2022-11-23 15:38:06,008 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 160 167) no Hoare annotation was computed. [2022-11-23 15:38:06,008 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 93 99) no Hoare annotation was computed. [2022-11-23 15:38:06,008 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 93 99) the Hoare annotation is: true [2022-11-23 15:38:06,009 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 926 937) the Hoare annotation is: (let ((.cse5 (= ~methaneLevelCritical~0 0)) (.cse6 (= ~pumpRunning~0 0)) (.cse1 (= |old(~methaneLevelCritical~0)| 0))) (let ((.cse2 (not (<= 2 ~waterLevel~0))) (.cse7 (not (<= ~waterLevel~0 1))) (.cse4 (not .cse1)) (.cse9 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse11 (not (= 0 ~systemActive~0))) (.cse10 (not .cse6)) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not .cse5)) (.cse8 (not (< ~waterLevel~0 3)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= ~waterLevel~0 2))) (or (not (= ~waterLevel~0 1)) .cse4 .cse5 .cse0) (or .cse6 .cse4 .cse5 .cse0 .cse7) (or .cse4 .cse5 .cse0 .cse2 .cse8) (or .cse4 .cse5 .cse0 .cse9 .cse7) (or .cse10 .cse1 .cse3 .cse9 .cse11 .cse8) (or .cse4 .cse10 .cse5 .cse9 .cse11 .cse8) (or .cse10 .cse0 .cse1 .cse3 .cse8)))) [2022-11-23 15:38:06,009 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 926 937) no Hoare annotation was computed. [2022-11-23 15:38:06,009 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 757 786) no Hoare annotation was computed. [2022-11-23 15:38:06,009 INFO L902 garLoopResultBuilder]: At program point L767-2(lines 767 781) the Hoare annotation is: true [2022-11-23 15:38:06,010 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 757 786) the Hoare annotation is: true [2022-11-23 15:38:06,010 INFO L902 garLoopResultBuilder]: At program point L763(line 763) the Hoare annotation is: true [2022-11-23 15:38:06,010 INFO L899 garLoopResultBuilder]: For program point L763-1(line 763) no Hoare annotation was computed. [2022-11-23 15:38:06,010 INFO L902 garLoopResultBuilder]: At program point L782(lines 757 786) the Hoare annotation is: true [2022-11-23 15:38:06,010 INFO L899 garLoopResultBuilder]: For program point L778(line 778) no Hoare annotation was computed. [2022-11-23 15:38:06,011 INFO L899 garLoopResultBuilder]: For program point L771(lines 771 775) no Hoare annotation was computed. [2022-11-23 15:38:06,011 INFO L902 garLoopResultBuilder]: At program point L771-1(lines 771 775) the Hoare annotation is: true [2022-11-23 15:38:06,011 INFO L895 garLoopResultBuilder]: At program point L721(line 721) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (not (< |old(~waterLevel~0)| 3)))) (let ((.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse4 (not (= 0 ~systemActive~0))) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (and (or .cse1 .cse8) (not (< |old(~waterLevel~0)| 2)))) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse5 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 (not (<= |old(~waterLevel~0)| 1)) .cse5 (not .cse6) .cse3) (or .cse0 .cse1 .cse2 .cse5 .cse3) (or .cse1 (and (= ~pumpRunning~0 0) .cse7) .cse2 .cse4) (or .cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse7) .cse8) (or (not (= ~switchedOnBeforeTS~0 0)) .cse1 .cse2 .cse6 .cse5 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-23 15:38:06,012 INFO L895 garLoopResultBuilder]: At program point L721-1(line 721) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__2_#t~ret43#1|)) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0 .cse1) (not (= 0 ~systemActive~0)) .cse2))) [2022-11-23 15:38:06,012 INFO L899 garLoopResultBuilder]: For program point L73-2(lines 69 91) no Hoare annotation was computed. [2022-11-23 15:38:06,012 INFO L899 garLoopResultBuilder]: For program point L135(lines 135 143) no Hoare annotation was computed. [2022-11-23 15:38:06,013 INFO L895 garLoopResultBuilder]: At program point L131(lines 131 148) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not .cse2)) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 (not (<= |old(~waterLevel~0)| 2)) (not (= 0 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse2 (and .cse3 (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse4)) (or .cse1 .cse2 (not (= |old(~waterLevel~0)| 2)) (and .cse3 (= ~waterLevel~0 1) .cse4)) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) .cse4) (not (< |old(~waterLevel~0)| 3)))))) [2022-11-23 15:38:06,013 INFO L899 garLoopResultBuilder]: For program point L738(lines 738 748) no Hoare annotation was computed. [2022-11-23 15:38:06,013 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 751) no Hoare annotation was computed. [2022-11-23 15:38:06,014 INFO L895 garLoopResultBuilder]: At program point L734-1(lines 726 754) the Hoare annotation is: (let ((.cse18 (= ~waterLevel~0 1))) (let ((.cse15 (not .cse18)) (.cse16 (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|)) (.cse8 (= |old(~pumpRunning~0)| 0)) (.cse9 (= 0 ~systemActive~0))) (let ((.cse6 (not (<= |old(~waterLevel~0)| 1))) (.cse10 (not (= ~switchedOnBeforeTS~0 0))) (.cse13 (not .cse9)) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not .cse8)) (.cse2 (= ~pumpRunning~0 0)) (.cse11 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| ~waterLevel~0)) (.cse12 (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0)) (.cse17 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse19 (or .cse15 .cse16)) (.cse1 (not (= 1 ~systemActive~0))) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse14 (and (not (= |old(~waterLevel~0)| 1)) .cse8))) (and (or .cse0 .cse1 (and (not .cse2) .cse3 .cse4) .cse5) (or .cse6 .cse7 .cse1 .cse8 .cse9 (and .cse10 .cse2 .cse3 .cse11 .cse12 .cse13) .cse14) (or .cse15 .cse6 .cse0 .cse16 .cse13) (or .cse7 .cse1 (and .cse10 .cse2 .cse3 .cse12 .cse13) .cse5 .cse9 .cse14) (or .cse0 (and .cse2 .cse3 .cse4 .cse17) (not (<= |old(~waterLevel~0)| 2)) .cse13) (or .cse1 .cse5 .cse9 .cse18 .cse14) (or .cse0 (and .cse2 .cse3 .cse4 .cse17 .cse19) .cse1 (not (< |old(~waterLevel~0)| 2))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) .cse11)) (or (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) .cse4) .cse3 .cse12 .cse17 .cse19) .cse1 .cse8 (not .cse7) .cse9 .cse14 (not (< |old(~waterLevel~0)| 3))))))) [2022-11-23 15:38:06,014 INFO L899 garLoopResultBuilder]: For program point L739(lines 739 745) no Hoare annotation was computed. [2022-11-23 15:38:06,019 INFO L895 garLoopResultBuilder]: At program point L141(line 141) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (<= |old(~waterLevel~0)| 1))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse5 (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 (not (<= |old(~waterLevel~0)| 2)) (not (= 0 ~systemActive~0))) (or .cse1 .cse0 .cse2) (or .cse1 .cse3 .cse2) (or (and .cse4 (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse5 .cse6) .cse1 .cse2) (or .cse2 (and .cse4 (not (= ~pumpRunning~0 0)) .cse3 .cse5 (= ~waterLevel~0 1) .cse6) (not (< |old(~waterLevel~0)| 3)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-23 15:38:06,020 INFO L895 garLoopResultBuilder]: At program point L137(line 137) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|))) (not (= ~pumpRunning~0 0)) (not (= ~methaneLevelCritical~0 0)) (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (< |old(~waterLevel~0)| 3))) (or (not (= |old(~pumpRunning~0)| 0)) (not (<= |old(~waterLevel~0)| 2)) (not (= 0 ~systemActive~0))) (or .cse0 (not (= |old(~waterLevel~0)| 2)) (= ~waterLevel~0 1)))) [2022-11-23 15:38:06,020 INFO L895 garLoopResultBuilder]: At program point L736(line 736) the Hoare annotation is: (let ((.cse12 (= 0 ~systemActive~0)) (.cse11 (= |old(~pumpRunning~0)| 0)) (.cse14 (= ~pumpRunning~0 0)) (.cse3 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| ~waterLevel~0)) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse15 (= ~methaneLevelCritical~0 0))) (let ((.cse1 (not .cse15)) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (not (<= |old(~waterLevel~0)| 1))) (.cse9 (and .cse14 .cse3 (= |old(~waterLevel~0)| ~waterLevel~0) .cse5)) (.cse8 (not .cse11)) (.cse10 (not .cse12)) (.cse13 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5) .cse6) (or .cse7 .cse8 .cse9 .cse10) (or .cse7 .cse0 .cse11 .cse1 .cse12 (and .cse2 (not (< 0 ~waterLevel~0)) .cse3 .cse13 .cse4 .cse5)) (or .cse8 .cse0 .cse6) (or .cse7 .cse8 .cse9 .cse0) (or .cse8 (not (<= |old(~waterLevel~0)| 2)) .cse10 (not (<= 2 |old(~waterLevel~0)|))) (or (and (not (= ~switchedOnBeforeTS~0 0)) .cse14 .cse3 .cse13 .cse4) .cse15 .cse0 .cse11 .cse12 (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse6 (= ~waterLevel~0 1))))) [2022-11-23 15:38:06,020 INFO L899 garLoopResultBuilder]: For program point L736-1(line 736) no Hoare annotation was computed. [2022-11-23 15:38:06,020 INFO L895 garLoopResultBuilder]: At program point L860(line 860) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= |old(~waterLevel~0)| 2)) (not (= 0 ~systemActive~0))) (or (not (= 1 ~systemActive~0)) (not (< |old(~waterLevel~0)| 3)))) [2022-11-23 15:38:06,021 INFO L895 garLoopResultBuilder]: At program point L146(line 146) the Hoare annotation is: (let ((.cse5 (= |old(~waterLevel~0)| 1))) (let ((.cse6 (not .cse5)) (.cse0 (= |old(~pumpRunning~0)| 0))) (let ((.cse1 (= 0 ~systemActive~0)) (.cse3 (and .cse6 .cse0)) (.cse4 (not (< |old(~waterLevel~0)| 3))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (not .cse0) (not (<= |old(~waterLevel~0)| 2)) (not .cse1)) (or .cse2 (not (= |old(~waterLevel~0)| 2)) .cse1 .cse3) (or (and (= ~pumpRunning~0 0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse2 .cse4) (or (not (<= |old(~waterLevel~0)| 1)) .cse5 .cse2 .cse1 .cse3) (or .cse2 (= |old(~waterLevel~0)| ~waterLevel~0) .cse4) (or .cse6 .cse2 .cse0))))) [2022-11-23 15:38:06,021 INFO L895 garLoopResultBuilder]: At program point L146-1(lines 127 151) the Hoare annotation is: (let ((.cse7 (= ~methaneLevelCritical~0 0)) (.cse8 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse8)) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse12 (not (= |old(~waterLevel~0)| 2))) (.cse14 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse10 (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (not (<= |old(~waterLevel~0)| 1))) (.cse3 (not (= 1 ~systemActive~0))) (.cse13 (not .cse7)) (.cse1 (= 0 ~systemActive~0)) (.cse11 (and (not (= |old(~waterLevel~0)| 1)) .cse8))) (and (or .cse0 (not (<= |old(~waterLevel~0)| 2)) (not .cse1)) (or .cse2 .cse0 .cse3 (and .cse4 .cse5 .cse6)) (or .cse7 .cse3 .cse8 .cse1 (and (not (= ~switchedOnBeforeTS~0 0)) .cse4 .cse9 .cse10) .cse11 (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse3 .cse12 (and (not .cse4) .cse5)) (or .cse3 .cse13 (and .cse14 .cse10 .cse6) .cse12 .cse1 .cse11) (or .cse3 .cse12 .cse1 (= ~waterLevel~0 1) .cse11) (or (and .cse14 (not (< 0 ~waterLevel~0)) .cse9 .cse10 .cse6) .cse2 .cse3 .cse8 .cse13 .cse1 .cse11)))) [2022-11-23 15:38:06,021 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 66 92) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (not (< |old(~waterLevel~0)| 3)))) (let ((.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse4 (not (= 0 ~systemActive~0))) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (and (or .cse1 .cse8) (not (< |old(~waterLevel~0)| 2)))) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse5 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 (not (<= |old(~waterLevel~0)| 1)) .cse5 (not .cse6) .cse3) (or .cse0 .cse1 .cse2 .cse5 .cse3) (or .cse1 (and (= ~pumpRunning~0 0) .cse7) .cse2 .cse4) (or .cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse7) .cse8) (or (not (= ~switchedOnBeforeTS~0 0)) .cse1 .cse2 .cse6 .cse5 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-23 15:38:06,022 INFO L895 garLoopResultBuilder]: At program point L80-1(lines 80 86) the Hoare annotation is: (let ((.cse5 (= ~methaneLevelCritical~0 0)) (.cse6 (= |old(~pumpRunning~0)| 0)) (.cse7 (= ~pumpRunning~0 0)) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse15 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse3 (and .cse7 .cse12 .cse15)) (.cse1 (not .cse6)) (.cse11 (not (= |old(~waterLevel~0)| 2))) (.cse14 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse9 (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0)) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse2 (not (= 1 ~systemActive~0))) (.cse13 (not .cse5)) (.cse4 (= 0 ~systemActive~0)) (.cse10 (and (not (= |old(~waterLevel~0)| 1)) .cse6))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse3 (not (<= |old(~waterLevel~0)| 2)) (not .cse4)) (or .cse5 .cse2 .cse6 .cse4 (and (not (= ~switchedOnBeforeTS~0 0)) .cse7 .cse8 .cse9) .cse10 (not (< |old(~waterLevel~0)| 3))) (or .cse1 .cse2 .cse11 (and (not .cse7) .cse12)) (or .cse2 .cse13 (and .cse14 .cse9 .cse15) .cse11 .cse4 .cse10) (or .cse2 .cse11 .cse4 (= ~waterLevel~0 1) .cse10) (or (and .cse14 (not (< 0 ~waterLevel~0)) .cse8 .cse9 .cse15) .cse0 .cse2 .cse6 .cse13 .cse4 .cse10)))) [2022-11-23 15:38:06,022 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 66 92) no Hoare annotation was computed. [2022-11-23 15:38:06,022 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 860) no Hoare annotation was computed. [2022-11-23 15:38:06,023 INFO L902 garLoopResultBuilder]: At program point L333(lines 270 337) the Hoare annotation is: true [2022-11-23 15:38:06,023 INFO L899 garLoopResultBuilder]: For program point L300(lines 300 306) no Hoare annotation was computed. [2022-11-23 15:38:06,023 INFO L899 garLoopResultBuilder]: For program point L300-1(lines 300 306) no Hoare annotation was computed. [2022-11-23 15:38:06,023 INFO L895 garLoopResultBuilder]: At program point L292(line 292) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (let ((.cse3 (= ~methaneLevelCritical~0 0)) (.cse1 (<= ~waterLevel~0 1)) (.cse8 (not .cse0)) (.cse2 (= 1 ~systemActive~0)) (.cse7 (= ~waterLevel~0 1)) (.cse4 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse5 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (or (and .cse0 .cse1 .cse2 (not .cse3) .cse4 .cse5) (and (or (and .cse4 .cse5 .cse6) (and (not .cse7) .cse8 .cse4 .cse5)) .cse3 .cse1 .cse2) (and .cse8 (= 2 ~waterLevel~0) .cse2 .cse4 .cse5) (and .cse0 .cse2 .cse4 .cse5 .cse7) (and .cse0 .cse4 .cse5 (= 0 ~systemActive~0) (< ~waterLevel~0 3) .cse6)))) [2022-11-23 15:38:06,023 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 15:38:06,024 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 253) no Hoare annotation was computed. [2022-11-23 15:38:06,024 INFO L895 garLoopResultBuilder]: At program point L247-1(lines 247 253) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (<= ~waterLevel~0 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 .cse3 .cse1 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 (= 1 ~systemActive~0) .cse1 .cse2))) [2022-11-23 15:38:06,024 INFO L895 garLoopResultBuilder]: At program point L842(lines 842 849) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~8#1| 1) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-23 15:38:06,025 INFO L895 garLoopResultBuilder]: At program point L330(lines 279 331) the Hoare annotation is: false [2022-11-23 15:38:06,025 INFO L902 garLoopResultBuilder]: At program point L842-2(lines 842 849) the Hoare annotation is: true [2022-11-23 15:38:06,025 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:38:06,025 INFO L899 garLoopResultBuilder]: For program point L318(lines 318 324) no Hoare annotation was computed. [2022-11-23 15:38:06,025 INFO L895 garLoopResultBuilder]: At program point L318-2(lines 310 325) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= ~waterLevel~0 2) (= 0 ~systemActive~0)) (and (= 1 ~systemActive~0) .cse0 .cse1 (< ~waterLevel~0 3)))) [2022-11-23 15:38:06,026 INFO L899 garLoopResultBuilder]: For program point L281(lines 280 329) no Hoare annotation was computed. [2022-11-23 15:38:06,026 INFO L895 garLoopResultBuilder]: At program point L310(lines 310 325) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (< ~waterLevel~0 3))) (or (and (= 1 ~systemActive~0) .cse0 .cse1 .cse2) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= 0 ~systemActive~0) .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) [2022-11-23 15:38:06,026 INFO L895 garLoopResultBuilder]: At program point L302(line 302) the Hoare annotation is: (let ((.cse4 (= ~methaneLevelCritical~0 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (< ~waterLevel~0 3)) (.cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and .cse3 .cse0 (not .cse4) .cse1 .cse2 .cse5) (and .cse4 .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and (not .cse3) .cse4 (<= ~waterLevel~0 1) .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse2 (= 0 ~systemActive~0) .cse5 .cse6) (and .cse3 .cse0 .cse1 .cse2 .cse5 .cse6))) [2022-11-23 15:38:06,026 INFO L895 garLoopResultBuilder]: At program point L327(lines 280 329) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (let ((.cse1 (<= ~waterLevel~0 1)) (.cse2 (= 1 ~systemActive~0)) (.cse7 (= ~waterLevel~0 1)) (.cse6 (not .cse0)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse4 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse5 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse8 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (or (and .cse0 .cse1 .cse2 (not .cse3) .cse4 .cse5) (and .cse6 (= 2 ~waterLevel~0) .cse2 .cse4 .cse5) (and .cse0 .cse2 .cse4 .cse5 .cse7) (and .cse0 .cse4 .cse5 (= 0 ~systemActive~0) (< ~waterLevel~0 3) .cse8) (and .cse1 .cse2 (or (and (not (= ~switchedOnBeforeTS~0 0)) (not .cse7) .cse6 .cse3 .cse4 .cse5) (and .cse3 .cse4 .cse5 .cse8)))))) [2022-11-23 15:38:06,027 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 296) no Hoare annotation was computed. [2022-11-23 15:38:06,027 INFO L899 garLoopResultBuilder]: For program point L290-1(lines 290 296) no Hoare annotation was computed. [2022-11-23 15:38:06,027 INFO L895 garLoopResultBuilder]: At program point L249(line 249) the Hoare annotation is: (and (not (= ~pumpRunning~0 0)) (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~8#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (< ~waterLevel~0 3)) [2022-11-23 15:38:06,027 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 101 125) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (< ~waterLevel~0 3)) .cse2) (or .cse0 (not (= ~methaneLevelCritical~0 0)) (not (<= ~waterLevel~0 1)) .cse1 .cse2))) [2022-11-23 15:38:06,028 INFO L895 garLoopResultBuilder]: At program point L120(line 120) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3)) .cse1) (or .cse0 (not (= ~methaneLevelCritical~0 0)) (not (<= ~waterLevel~0 1)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse1))) [2022-11-23 15:38:06,028 INFO L899 garLoopResultBuilder]: For program point L120-1(lines 101 125) no Hoare annotation was computed. [2022-11-23 15:38:06,028 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 101 125) no Hoare annotation was computed. [2022-11-23 15:38:06,028 INFO L895 garLoopResultBuilder]: At program point L115(line 115) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (not (< ~waterLevel~0 3)) .cse2) (or .cse0 .cse1 (and (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0) .cse3) (not (<= ~waterLevel~0 1)) .cse2) (or (and (= ~pumpRunning~0 0) .cse3) .cse1 (not (< ~waterLevel~0 2)) (not (= ~methaneLevelCritical~0 0)) .cse2))) [2022-11-23 15:38:06,029 INFO L895 garLoopResultBuilder]: At program point L109(lines 109 117) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (let ((.cse1 (< ~waterLevel~0 2))) (or (and (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0) .cse1) (and (not .cse1) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 1)))) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (< ~waterLevel~0 3)) .cse2) (or .cse0 (not (= ~methaneLevelCritical~0 0)) (not (<= ~waterLevel~0 1)) (= ~switchedOnBeforeTS~0 0) .cse2))) [2022-11-23 15:38:06,029 INFO L895 garLoopResultBuilder]: At program point L105(lines 105 122) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (< ~waterLevel~0 3)) .cse2) (or .cse0 (not (= ~methaneLevelCritical~0 0)) (not (<= ~waterLevel~0 1)) .cse1 .cse2))) [2022-11-23 15:38:06,029 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 914 925) no Hoare annotation was computed. [2022-11-23 15:38:06,030 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 914 925) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse10 (= ~methaneLevelCritical~0 0)) (.cse7 (= |old(~waterLevel~0)| 1))) (let ((.cse9 (not .cse7)) (.cse8 (not .cse10)) (.cse3 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not .cse0)) (.cse5 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse6 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (< |old(~waterLevel~0)| 3)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse3 .cse4 .cse5 .cse2 .cse6) (or .cse3 .cse0 .cse7 .cse1 .cse8 .cse2) (or .cse4 .cse9 .cse1 (= ~waterLevel~0 1)) (or .cse9 .cse1 .cse8 .cse5 .cse2) (or .cse3 .cse4 .cse1 .cse5 .cse2) (or .cse3 .cse4 .cse10 .cse1 .cse2) (or .cse4 .cse5 (not (= |old(~waterLevel~0)| 2)) .cse2 .cse6)))) [2022-11-23 15:38:06,030 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 179 187) no Hoare annotation was computed. [2022-11-23 15:38:06,030 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 179 187) the Hoare annotation is: true [2022-11-23 15:38:06,034 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:38:06,036 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:38:06,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:38:06 BoogieIcfgContainer [2022-11-23 15:38:06,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:38:06,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:38:06,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:38:06,096 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:38:06,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:36:24" (3/4) ... [2022-11-23 15:38:06,100 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:38:06,105 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-23 15:38:06,105 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 15:38:06,105 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 15:38:06,106 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 15:38:06,106 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 15:38:06,106 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 15:38:06,106 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 15:38:06,106 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-23 15:38:06,122 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2022-11-23 15:38:06,123 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-23 15:38:06,123 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-23 15:38:06,124 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:38:06,124 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:38:06,157 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) && pumpRunning == aux-isPumpRunning()-aux)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == aux-isPumpRunning()-aux)) || !(0 == systemActive)) || !(\old(waterLevel) < 3)) [2022-11-23 15:38:06,160 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((((methaneLevelCritical == 0 || !(1 == systemActive)) || \old(pumpRunning) == 0) || 0 == systemActive) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel)) && tmp == methaneLevelCritical)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel))) && (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && ((((!(1 == systemActive) || !(\old(waterLevel) == 2)) || 0 == systemActive) || waterLevel == 1) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && ((((((((((pumpRunning == \old(pumpRunning) && !(0 < waterLevel)) && waterLevel <= \old(waterLevel)) && tmp == methaneLevelCritical) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) [2022-11-23 15:38:06,162 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((!(pumpRunning == 0) && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2)) && ((((((!(\old(waterLevel) <= 1) || methaneLevelCritical == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || 0 == systemActive) || (((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && tmp == waterLevel) && waterLevel <= \old(waterLevel)) && tmp == methaneLevelCritical) && !(0 == systemActive))) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && ((((!(waterLevel == 1) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 0)) || pumpRunning == tmp___0) || !(0 == systemActive))) && (((((methaneLevelCritical == 0 || !(1 == systemActive)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && tmp == waterLevel) && tmp == methaneLevelCritical) && !(0 == systemActive))) || !(\old(waterLevel) == 2)) || 0 == systemActive) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((!(1 == systemActive) || !(\old(waterLevel) == 2)) || 0 == systemActive) || waterLevel == 1) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && (((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && (!(waterLevel == 1) || pumpRunning == tmp___0))) || !(1 == systemActive)) || !(\old(waterLevel) < 2))) && ((((((((((((pumpRunning == \old(pumpRunning) && (waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel)))) && (!(tmp___0 == 0) || \old(waterLevel) == waterLevel)) && tmp == waterLevel) && tmp == methaneLevelCritical) && pumpRunning == switchedOnBeforeTS) && (!(waterLevel == 1) || pumpRunning == tmp___0)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) || !(\old(waterLevel) < 3)) [2022-11-23 15:38:06,162 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) && (((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || \old(pumpRunning) == 0) || (((pumpRunning == \old(pumpRunning) && !(0 < waterLevel)) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS))) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(\old(waterLevel) == 2)) || ((pumpRunning == \old(pumpRunning) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3)) [2022-11-23 15:38:06,162 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) && (!(1 == systemActive) || !(\old(waterLevel) < 3)) [2022-11-23 15:38:06,163 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS))) && ((((((methaneLevelCritical == 0 || !(1 == systemActive)) || \old(pumpRunning) == 0) || 0 == systemActive) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel)) && tmp == methaneLevelCritical)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel))) && (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && ((((!(1 == systemActive) || !(\old(waterLevel) == 2)) || 0 == systemActive) || waterLevel == 1) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && ((((((((((pumpRunning == \old(pumpRunning) && !(0 < waterLevel)) && waterLevel <= \old(waterLevel)) && tmp == methaneLevelCritical) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) [2022-11-23 15:38:06,163 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(waterLevel <= 1)) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning))) [2022-11-23 15:38:06,168 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((tmp == 0 && waterLevel < 2) || (!(waterLevel < 2) && tmp == 1)) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(waterLevel <= 1)) || switchedOnBeforeTS == 0) || !(switchedOnBeforeTS == \old(pumpRunning))) [2022-11-23 15:38:06,212 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:38:06,214 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:38:06,215 INFO L158 Benchmark]: Toolchain (without parser) took 102676.21ms. Allocated memory was 199.2MB in the beginning and 1.1GB in the end (delta: 882.9MB). Free memory was 167.5MB in the beginning and 901.0MB in the end (delta: -733.5MB). Peak memory consumption was 151.0MB. Max. memory is 16.1GB. [2022-11-23 15:38:06,215 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 146.8MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:38:06,215 INFO L158 Benchmark]: CACSL2BoogieTranslator took 465.81ms. Allocated memory is still 199.2MB. Free memory was 167.3MB in the beginning and 148.6MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:38:06,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.81ms. Allocated memory is still 199.2MB. Free memory was 148.6MB in the beginning and 146.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:38:06,216 INFO L158 Benchmark]: Boogie Preprocessor took 48.50ms. Allocated memory is still 199.2MB. Free memory was 146.5MB in the beginning and 144.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:38:06,216 INFO L158 Benchmark]: RCFGBuilder took 764.38ms. Allocated memory is still 199.2MB. Free memory was 144.9MB in the beginning and 120.8MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 15:38:06,217 INFO L158 Benchmark]: TraceAbstraction took 101219.33ms. Allocated memory was 199.2MB in the beginning and 1.1GB in the end (delta: 882.9MB). Free memory was 120.2MB in the beginning and 907.3MB in the end (delta: -787.0MB). Peak memory consumption was 620.8MB. Max. memory is 16.1GB. [2022-11-23 15:38:06,217 INFO L158 Benchmark]: Witness Printer took 118.33ms. Allocated memory is still 1.1GB. Free memory was 907.3MB in the beginning and 901.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 15:38:06,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 146.8MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 465.81ms. Allocated memory is still 199.2MB. Free memory was 167.3MB in the beginning and 148.6MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.81ms. Allocated memory is still 199.2MB. Free memory was 148.6MB in the beginning and 146.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.50ms. Allocated memory is still 199.2MB. Free memory was 146.5MB in the beginning and 144.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 764.38ms. Allocated memory is still 199.2MB. Free memory was 144.9MB in the beginning and 120.8MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 101219.33ms. Allocated memory was 199.2MB in the beginning and 1.1GB in the end (delta: 882.9MB). Free memory was 120.2MB in the beginning and 907.3MB in the end (delta: -787.0MB). Peak memory consumption was 620.8MB. Max. memory is 16.1GB. * Witness Printer took 118.33ms. Allocated memory is still 1.1GB. Free memory was 907.3MB in the beginning and 901.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 860]: 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 9 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 101.1s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 55.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3654 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3618 mSDsluCounter, 3628 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2619 mSDsCounter, 2210 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5171 IncrementalHoareTripleChecker+Invalid, 7381 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2210 mSolverCounterUnsat, 1009 mSDtfsCounter, 5171 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 704 GetRequests, 389 SyntacticMatches, 10 SemanticMatches, 305 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11067 ImplicationChecksByTransitivity, 22.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2740occurred in iteration=9, InterpolantAutomatonStates: 215, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1484 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 6154 PreInvPairs, 7071 NumberOfFragments, 2708 HoareAnnotationTreeSize, 6154 FomulaSimplifications, 70695 FormulaSimplificationTreeSizeReduction, 12.8s HoareSimplificationTime, 39 FomulaSimplificationsInter, 510551 FormulaSimplificationTreeSizeReductionInter, 42.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 667 NumberOfCodeBlocks, 667 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 770 ConstructedInterpolants, 0 QuantifiedInterpolants, 2980 SizeOfPredicates, 26 NumberOfNonLiveVariables, 911 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 16 InterpolantComputations, 9 PerfectInterpolantSequences, 221/281 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: 842]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && tmp == 1) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(waterLevel <= 1)) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning))) - InvariantResult [Line: 280]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0 && waterLevel <= 1) && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == 1) && splverifierCounter == 0) || ((((!(pumpRunning == 0) && 2 == waterLevel) && 1 == systemActive) && tmp == 1) && splverifierCounter == 0)) || ((((pumpRunning == 0 && 1 == systemActive) && tmp == 1) && splverifierCounter == 0) && waterLevel == 1)) || (((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 0 == systemActive) && waterLevel < 3) && pumpRunning == switchedOnBeforeTS)) || ((waterLevel <= 1 && 1 == systemActive) && ((((((!(switchedOnBeforeTS == 0) && !(waterLevel == 1)) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && tmp == 1) && splverifierCounter == 0) || (((methaneLevelCritical == 0 && tmp == 1) && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS))) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) && (((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || \old(pumpRunning) == 0) || (((pumpRunning == \old(pumpRunning) && !(0 < waterLevel)) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS))) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(\old(waterLevel) == 2)) || ((pumpRunning == \old(pumpRunning) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 842]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 310]: Loop Invariant Derived loop invariant: (((1 == systemActive && tmp == 1) && splverifierCounter == 0) && waterLevel < 3) || (((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 0 == systemActive) && waterLevel < 3) && pumpRunning == switchedOnBeforeTS) - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: ((((((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((((methaneLevelCritical == 0 || !(1 == systemActive)) || \old(pumpRunning) == 0) || 0 == systemActive) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel)) && tmp == methaneLevelCritical)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel))) && (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && ((((!(1 == systemActive) || !(\old(waterLevel) == 2)) || 0 == systemActive) || waterLevel == 1) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && ((((((((((pumpRunning == \old(pumpRunning) && !(0 < waterLevel)) && waterLevel <= \old(waterLevel)) && tmp == methaneLevelCritical) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) - InvariantResult [Line: 860]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) && (!(1 == systemActive) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS))) && ((((((methaneLevelCritical == 0 || !(1 == systemActive)) || \old(pumpRunning) == 0) || 0 == systemActive) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel)) && tmp == methaneLevelCritical)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel))) && (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && ((((!(1 == systemActive) || !(\old(waterLevel) == 2)) || 0 == systemActive) || waterLevel == 1) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && ((((((((((pumpRunning == \old(pumpRunning) && !(0 < waterLevel)) && waterLevel <= \old(waterLevel)) && tmp == methaneLevelCritical) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) - InvariantResult [Line: 767]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((tmp == 0 && waterLevel < 2) || (!(waterLevel < 2) && tmp == 1)) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(waterLevel <= 1)) || switchedOnBeforeTS == 0) || !(switchedOnBeforeTS == \old(pumpRunning))) - InvariantResult [Line: 270]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 721]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) && pumpRunning == aux-isPumpRunning()-aux)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == aux-isPumpRunning()-aux)) || !(0 == systemActive)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 247]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && 2 == waterLevel) && tmp == 1) && splverifierCounter == 0) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 1) && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS)) || (((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && waterLevel == 1)) || ((((pumpRunning == 0 && waterLevel <= 1) && 1 == systemActive) && tmp == 1) && splverifierCounter == 0) - InvariantResult [Line: 726]: Loop Invariant Derived loop invariant: (((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((!(pumpRunning == 0) && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2)) && ((((((!(\old(waterLevel) <= 1) || methaneLevelCritical == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || 0 == systemActive) || (((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && tmp == waterLevel) && waterLevel <= \old(waterLevel)) && tmp == methaneLevelCritical) && !(0 == systemActive))) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && ((((!(waterLevel == 1) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 0)) || pumpRunning == tmp___0) || !(0 == systemActive))) && (((((methaneLevelCritical == 0 || !(1 == systemActive)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && tmp == waterLevel) && tmp == methaneLevelCritical) && !(0 == systemActive))) || !(\old(waterLevel) == 2)) || 0 == systemActive) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((!(1 == systemActive) || !(\old(waterLevel) == 2)) || 0 == systemActive) || waterLevel == 1) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && (((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && (!(waterLevel == 1) || pumpRunning == tmp___0))) || !(1 == systemActive)) || !(\old(waterLevel) < 2))) && ((((((((((((pumpRunning == \old(pumpRunning) && (waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel)))) && (!(tmp___0 == 0) || \old(waterLevel) == waterLevel)) && tmp == waterLevel) && tmp == methaneLevelCritical) && pumpRunning == switchedOnBeforeTS) && (!(waterLevel == 1) || pumpRunning == tmp___0)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 279]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-23 15:38:06,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea349fd-babc-43df-92e2-44850c108557/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