./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a7c3724e5ee5aec618285d48655e08e5160513f4f9a55965746ea75a93f68ad --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:46:28,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:46:28,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:46:28,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:46:28,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:46:28,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:46:28,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:46:28,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:46:28,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:46:28,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:46:28,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:46:28,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:46:28,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:46:28,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:46:28,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:46:28,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:46:28,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:46:28,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:46:28,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:46:28,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:46:28,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:46:28,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:46:28,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:46:28,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:46:28,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:46:28,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:46:28,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:46:28,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:46:28,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:46:28,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:46:28,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:46:28,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:46:28,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:46:28,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:46:28,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:46:28,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:46:28,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:46:28,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:46:28,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:46:28,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:46:28,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:46:28,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:46:28,533 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:46:28,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:46:28,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:46:28,533 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:46:28,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:46:28,534 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:46:28,535 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:46:28,535 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:46:28,535 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:46:28,535 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:46:28,535 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:46:28,536 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:46:28,536 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:46:28,536 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:46:28,536 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:46:28,536 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:46:28,537 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:46:28,537 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:46:28,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:46:28,538 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:46:28,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:46:28,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:46:28,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:46:28,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:46:28,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:46:28,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:46:28,539 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:46:28,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:46:28,540 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:46:28,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:46:28,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:46:28,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:46:28,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:46:28,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:46:28,541 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:46:28,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:46:28,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:46:28,542 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:46:28,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:46:28,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:46:28,542 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:46:28,543 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_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a7c3724e5ee5aec618285d48655e08e5160513f4f9a55965746ea75a93f68ad [2022-11-03 03:46:28,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:46:28,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:46:28,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:46:28,808 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:46:28,809 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:46:28,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec4_product22.cil.c [2022-11-03 03:46:28,897 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/data/8406e1937/9b2c4e3434ce412684541bfe377e34ec/FLAG09c2e3a93 [2022-11-03 03:46:29,573 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:46:29,577 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/sv-benchmarks/c/product-lines/minepump_spec4_product22.cil.c [2022-11-03 03:46:29,592 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/data/8406e1937/9b2c4e3434ce412684541bfe377e34ec/FLAG09c2e3a93 [2022-11-03 03:46:29,850 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/data/8406e1937/9b2c4e3434ce412684541bfe377e34ec [2022-11-03 03:46:29,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:46:29,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:46:29,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:46:29,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:46:29,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:46:29,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:29" (1/1) ... [2022-11-03 03:46:29,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60292186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:29, skipping insertion in model container [2022-11-03 03:46:29,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:29" (1/1) ... [2022-11-03 03:46:29,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:46:29,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:46:30,175 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/sv-benchmarks/c/product-lines/minepump_spec4_product22.cil.c[8015,8028] [2022-11-03 03:46:30,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:46:30,266 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:46:30,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/sv-benchmarks/c/product-lines/minepump_spec4_product22.cil.c[8015,8028] [2022-11-03 03:46:30,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:46:30,412 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:46:30,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:30 WrapperNode [2022-11-03 03:46:30,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:46:30,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:46:30,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:46:30,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:46:30,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:30" (1/1) ... [2022-11-03 03:46:30,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:30" (1/1) ... [2022-11-03 03:46:30,493 INFO L138 Inliner]: procedures = 54, calls = 154, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 246 [2022-11-03 03:46:30,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:46:30,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:46:30,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:46:30,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:46:30,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:30" (1/1) ... [2022-11-03 03:46:30,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:30" (1/1) ... [2022-11-03 03:46:30,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:30" (1/1) ... [2022-11-03 03:46:30,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:30" (1/1) ... [2022-11-03 03:46:30,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:30" (1/1) ... [2022-11-03 03:46:30,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:30" (1/1) ... [2022-11-03 03:46:30,528 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:30" (1/1) ... [2022-11-03 03:46:30,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:30" (1/1) ... [2022-11-03 03:46:30,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:46:30,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:46:30,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:46:30,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:46:30,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:30" (1/1) ... [2022-11-03 03:46:30,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:46:30,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:46:30,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:46:30,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:46:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:46:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 03:46:30,632 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 03:46:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 03:46:30,633 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 03:46:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 03:46:30,633 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 03:46:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 03:46:30,633 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 03:46:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-03 03:46:30,634 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-03 03:46:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 03:46:30,634 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 03:46:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:46:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 03:46:30,636 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 03:46:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:46:30,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:46:30,709 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:46:30,712 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:46:31,158 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:46:31,276 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:46:31,277 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 03:46:31,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:31 BoogieIcfgContainer [2022-11-03 03:46:31,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:46:31,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:46:31,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:46:31,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:46:31,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:46:29" (1/3) ... [2022-11-03 03:46:31,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b8a596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:46:31, skipping insertion in model container [2022-11-03 03:46:31,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:30" (2/3) ... [2022-11-03 03:46:31,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b8a596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:46:31, skipping insertion in model container [2022-11-03 03:46:31,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:31" (3/3) ... [2022-11-03 03:46:31,290 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product22.cil.c [2022-11-03 03:46:31,309 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:46:31,309 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:46:31,358 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:46:31,365 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;@d728858, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:46:31,366 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:46:31,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 42 states have internal predecessors, (49), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-03 03:46:31,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 03:46:31,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:31,379 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:46:31,380 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:31,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:31,386 INFO L85 PathProgramCache]: Analyzing trace with hash -684705203, now seen corresponding path program 1 times [2022-11-03 03:46:31,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:31,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670575298] [2022-11-03 03:46:31,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:31,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:31,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:46:31,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:31,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670575298] [2022-11-03 03:46:31,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670575298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:31,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:31,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:46:31,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191400595] [2022-11-03 03:46:31,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:31,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:46:31,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:31,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:46:31,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:46:31,706 INFO L87 Difference]: Start difference. First operand has 55 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 42 states have internal predecessors, (49), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:46:31,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:31,810 INFO L93 Difference]: Finished difference Result 108 states and 147 transitions. [2022-11-03 03:46:31,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:46:31,813 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-03 03:46:31,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:31,824 INFO L225 Difference]: With dead ends: 108 [2022-11-03 03:46:31,824 INFO L226 Difference]: Without dead ends: 50 [2022-11-03 03:46:31,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:46:31,834 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:31,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:46:31,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-03 03:46:31,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-03 03:46:31,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 38 states have internal predecessors, (41), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-03 03:46:31,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 64 transitions. [2022-11-03 03:46:31,893 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 64 transitions. Word has length 12 [2022-11-03 03:46:31,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:31,893 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 64 transitions. [2022-11-03 03:46:31,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:46:31,895 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2022-11-03 03:46:31,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 03:46:31,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:31,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:46:31,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:46:31,899 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:31,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:31,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1640694940, now seen corresponding path program 1 times [2022-11-03 03:46:31,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:31,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790370380] [2022-11-03 03:46:31,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:31,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:32,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:46:32,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:32,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790370380] [2022-11-03 03:46:32,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790370380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:32,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:32,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:46:32,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912827488] [2022-11-03 03:46:32,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:32,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:46:32,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:32,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:46:32,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:32,070 INFO L87 Difference]: Start difference. First operand 50 states and 64 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:46:32,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:32,111 INFO L93 Difference]: Finished difference Result 77 states and 99 transitions. [2022-11-03 03:46:32,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:46:32,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-03 03:46:32,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:32,113 INFO L225 Difference]: With dead ends: 77 [2022-11-03 03:46:32,113 INFO L226 Difference]: Without dead ends: 42 [2022-11-03 03:46:32,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:32,115 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 7 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:32,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 71 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:46:32,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-03 03:46:32,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-03 03:46:32,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 33 states have internal predecessors, (35), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 5 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-03 03:46:32,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2022-11-03 03:46:32,123 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 13 [2022-11-03 03:46:32,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:32,124 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2022-11-03 03:46:32,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:46:32,124 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2022-11-03 03:46:32,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 03:46:32,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:32,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:46:32,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:46:32,126 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:32,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:32,127 INFO L85 PathProgramCache]: Analyzing trace with hash 897714653, now seen corresponding path program 1 times [2022-11-03 03:46:32,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:32,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14900919] [2022-11-03 03:46:32,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:32,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:32,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:46:32,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:32,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14900919] [2022-11-03 03:46:32,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14900919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:32,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:32,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:46:32,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472729371] [2022-11-03 03:46:32,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:32,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:46:32,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:32,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:46:32,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:46:32,511 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:46:32,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:32,626 INFO L93 Difference]: Finished difference Result 110 states and 141 transitions. [2022-11-03 03:46:32,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:46:32,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 03:46:32,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:32,629 INFO L225 Difference]: With dead ends: 110 [2022-11-03 03:46:32,629 INFO L226 Difference]: Without dead ends: 70 [2022-11-03 03:46:32,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:46:32,631 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 30 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:32,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 165 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:46:32,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-03 03:46:32,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2022-11-03 03:46:32,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 52 states have internal predecessors, (56), 13 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 03:46:32,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2022-11-03 03:46:32,651 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 82 transitions. Word has length 15 [2022-11-03 03:46:32,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:32,651 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 82 transitions. [2022-11-03 03:46:32,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:46:32,652 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 82 transitions. [2022-11-03 03:46:32,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 03:46:32,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:32,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:46:32,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:46:32,655 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:32,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:32,657 INFO L85 PathProgramCache]: Analyzing trace with hash -592429761, now seen corresponding path program 1 times [2022-11-03 03:46:32,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:32,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988794392] [2022-11-03 03:46:32,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:32,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:32,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:46:32,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:32,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988794392] [2022-11-03 03:46:32,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988794392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:32,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:32,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:46:32,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522502114] [2022-11-03 03:46:32,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:32,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:46:32,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:32,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:46:32,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:46:32,816 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:46:32,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:32,859 INFO L93 Difference]: Finished difference Result 100 states and 123 transitions. [2022-11-03 03:46:32,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:46:32,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-03 03:46:32,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:32,860 INFO L225 Difference]: With dead ends: 100 [2022-11-03 03:46:32,860 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 03:46:32,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:46:32,862 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 25 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:32,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 48 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:46:32,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 03:46:32,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 03:46:32,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:46:32,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 03:46:32,864 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-11-03 03:46:32,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:32,865 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 03:46:32,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:46:32,865 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 03:46:32,865 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 03:46:32,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:46:32,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:46:32,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 03:46:33,304 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 285 292) the Hoare annotation is: true [2022-11-03 03:46:33,304 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 285 292) no Hoare annotation was computed. [2022-11-03 03:46:33,304 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 218 224) no Hoare annotation was computed. [2022-11-03 03:46:33,304 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 218 224) the Hoare annotation is: true [2022-11-03 03:46:33,304 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: true [2022-11-03 03:46:33,305 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2022-11-03 03:46:33,305 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 446 475) no Hoare annotation was computed. [2022-11-03 03:46:33,305 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 446 475) the Hoare annotation is: true [2022-11-03 03:46:33,305 INFO L902 garLoopResultBuilder]: At program point L471(lines 446 475) the Hoare annotation is: true [2022-11-03 03:46:33,305 INFO L899 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2022-11-03 03:46:33,305 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 464) no Hoare annotation was computed. [2022-11-03 03:46:33,305 INFO L902 garLoopResultBuilder]: At program point L460-1(lines 460 464) the Hoare annotation is: true [2022-11-03 03:46:33,306 INFO L902 garLoopResultBuilder]: At program point L456-2(lines 456 470) the Hoare annotation is: true [2022-11-03 03:46:33,306 INFO L902 garLoopResultBuilder]: At program point L452(line 452) the Hoare annotation is: true [2022-11-03 03:46:33,306 INFO L899 garLoopResultBuilder]: For program point L452-1(line 452) no Hoare annotation was computed. [2022-11-03 03:46:33,306 INFO L895 garLoopResultBuilder]: At program point L271(line 271) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2022-11-03 03:46:33,306 INFO L895 garLoopResultBuilder]: At program point L271-1(lines 252 276) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2022-11-03 03:46:33,306 INFO L895 garLoopResultBuilder]: At program point L205-1(lines 205 211) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2022-11-03 03:46:33,307 INFO L899 garLoopResultBuilder]: For program point L198-1(lines 197 216) no Hoare annotation was computed. [2022-11-03 03:46:33,307 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 268) no Hoare annotation was computed. [2022-11-03 03:46:33,307 INFO L895 garLoopResultBuilder]: At program point L545(line 545) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-03 03:46:33,307 INFO L895 garLoopResultBuilder]: At program point L256(lines 256 273) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2022-11-03 03:46:33,307 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 568) no Hoare annotation was computed. [2022-11-03 03:46:33,307 INFO L895 garLoopResultBuilder]: At program point L558(lines 558 571) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~5#1|) (= ~waterLevel~0 1))) (or .cse0 (= ~pumpRunning~0 0)))) [2022-11-03 03:46:33,307 INFO L895 garLoopResultBuilder]: At program point L558-1(lines 550 574) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~5#1|) (= ~waterLevel~0 1))) (or .cse0 (= ~pumpRunning~0 0)))) [2022-11-03 03:46:33,308 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 194 217) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2022-11-03 03:46:33,308 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 194 217) no Hoare annotation was computed. [2022-11-03 03:46:33,308 INFO L895 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-03 03:46:33,308 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 545) no Hoare annotation was computed. [2022-11-03 03:46:33,308 INFO L895 garLoopResultBuilder]: At program point L262(line 262) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-03 03:46:33,308 INFO L895 garLoopResultBuilder]: At program point L436(lines 387 437) the Hoare annotation is: false [2022-11-03 03:46:33,309 INFO L895 garLoopResultBuilder]: At program point L527(lines 527 534) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1)) [2022-11-03 03:46:33,309 INFO L902 garLoopResultBuilder]: At program point L527-2(lines 527 534) the Hoare annotation is: true [2022-11-03 03:46:33,309 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 03:46:33,309 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 414) no Hoare annotation was computed. [2022-11-03 03:46:33,309 INFO L895 garLoopResultBuilder]: At program point L408-1(lines 408 414) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 03:46:33,309 INFO L895 garLoopResultBuilder]: At program point L433(lines 388 435) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 03:46:33,309 INFO L895 garLoopResultBuilder]: At program point L400(line 400) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 03:46:33,313 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 03:46:33,314 INFO L895 garLoopResultBuilder]: At program point L426-2(lines 418 431) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 03:46:33,314 INFO L899 garLoopResultBuilder]: For program point L389(lines 388 435) no Hoare annotation was computed. [2022-11-03 03:46:33,314 INFO L895 garLoopResultBuilder]: At program point L410(line 410) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 03:46:33,314 INFO L902 garLoopResultBuilder]: At program point L439(lines 378 443) the Hoare annotation is: true [2022-11-03 03:46:33,315 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 404) no Hoare annotation was computed. [2022-11-03 03:46:33,315 INFO L899 garLoopResultBuilder]: For program point L398-1(lines 398 404) no Hoare annotation was computed. [2022-11-03 03:46:33,315 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2022-11-03 03:46:33,315 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: true [2022-11-03 03:46:33,316 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 226 250) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-11-03 03:46:33,316 INFO L895 garLoopResultBuilder]: At program point L240(line 240) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-03 03:46:33,316 INFO L895 garLoopResultBuilder]: At program point L236(line 236) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-03 03:46:33,316 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 242) no Hoare annotation was computed. [2022-11-03 03:46:33,316 INFO L895 garLoopResultBuilder]: At program point L230(lines 230 247) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-11-03 03:46:33,317 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 226 250) no Hoare annotation was computed. [2022-11-03 03:46:33,317 INFO L895 garLoopResultBuilder]: At program point L245(line 245) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-11-03 03:46:33,317 INFO L899 garLoopResultBuilder]: For program point L245-1(lines 226 250) no Hoare annotation was computed. [2022-11-03 03:46:33,320 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-03 03:46:33,323 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:46:33,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:46:33 BoogieIcfgContainer [2022-11-03 03:46:33,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:46:33,356 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:46:33,356 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:46:33,357 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:46:33,357 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:31" (3/4) ... [2022-11-03 03:46:33,360 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 03:46:33,366 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 03:46:33,366 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 03:46:33,366 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 03:46:33,366 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 03:46:33,367 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 03:46:33,367 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 03:46:33,367 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-11-03 03:46:33,381 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2022-11-03 03:46:33,382 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-03 03:46:33,383 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-03 03:46:33,383 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 03:46:33,383 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 03:46:33,384 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:46:33,384 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:46:33,419 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) [2022-11-03 03:46:33,420 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) [2022-11-03 03:46:33,421 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) [2022-11-03 03:46:33,421 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) [2022-11-03 03:46:33,422 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || pumpRunning == 0 [2022-11-03 03:46:33,426 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (1 <= tmp && waterLevel == 1)) && (!(\old(pumpRunning) == 0) || pumpRunning == 0) [2022-11-03 03:46:33,427 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (1 <= tmp && waterLevel == 1)) && (!(\old(pumpRunning) == 0) || pumpRunning == 0) [2022-11-03 03:46:33,427 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-11-03 03:46:33,480 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 03:46:33,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:46:33,481 INFO L158 Benchmark]: Toolchain (without parser) took 3626.97ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 74.9MB in the beginning and 84.9MB in the end (delta: -10.0MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-11-03 03:46:33,482 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:46:33,482 INFO L158 Benchmark]: CACSL2BoogieTranslator took 556.49ms. Allocated memory is still 109.1MB. Free memory was 74.7MB in the beginning and 73.8MB in the end (delta: 839.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 03:46:33,482 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.33ms. Allocated memory is still 109.1MB. Free memory was 73.8MB in the beginning and 71.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:46:33,483 INFO L158 Benchmark]: Boogie Preprocessor took 59.06ms. Allocated memory is still 109.1MB. Free memory was 71.4MB in the beginning and 69.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:46:33,483 INFO L158 Benchmark]: RCFGBuilder took 725.46ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 69.7MB in the beginning and 104.0MB in the end (delta: -34.3MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-11-03 03:46:33,483 INFO L158 Benchmark]: TraceAbstraction took 2072.92ms. Allocated memory is still 138.4MB. Free memory was 103.3MB in the beginning and 90.2MB in the end (delta: 13.1MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2022-11-03 03:46:33,484 INFO L158 Benchmark]: Witness Printer took 124.46ms. Allocated memory is still 138.4MB. Free memory was 90.2MB in the beginning and 84.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 03:46:33,488 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 556.49ms. Allocated memory is still 109.1MB. Free memory was 74.7MB in the beginning and 73.8MB in the end (delta: 839.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.33ms. Allocated memory is still 109.1MB. Free memory was 73.8MB in the beginning and 71.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.06ms. Allocated memory is still 109.1MB. Free memory was 71.4MB in the beginning and 69.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 725.46ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 69.7MB in the beginning and 104.0MB in the end (delta: -34.3MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2072.92ms. Allocated memory is still 138.4MB. Free memory was 103.3MB in the beginning and 90.2MB in the end (delta: 13.1MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Witness Printer took 124.46ms. Allocated memory is still 138.4MB. Free memory was 90.2MB in the beginning and 84.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 545]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 338 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 214 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 121 IncrementalHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 161 mSDtfsCounter, 121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=3, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 187 PreInvPairs, 208 NumberOfFragments, 254 HoareAnnotationTreeSize, 187 FomulaSimplifications, 19 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 34 FomulaSimplificationsInter, 201 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 146 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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: 550]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (1 <= tmp && waterLevel == 1)) && (!(\old(pumpRunning) == 0) || pumpRunning == 0) - InvariantResult [Line: 388]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 456]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 446]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 256]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) - InvariantResult [Line: 387]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) - InvariantResult [Line: 378]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) - InvariantResult [Line: 230]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || pumpRunning == 0 - InvariantResult [Line: 527]: Loop Invariant Derived loop invariant: pumpRunning == 0 && waterLevel == 1 - InvariantResult [Line: 558]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (1 <= tmp && waterLevel == 1)) && (!(\old(pumpRunning) == 0) || pumpRunning == 0) - InvariantResult [Line: 527]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 545]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) RESULT: Ultimate proved your program to be correct! [2022-11-03 03:46:33,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb236ebe-9aeb-41a8-8f85-f743147174d3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE