./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/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_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/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_d799b7a7-b318-4841-8787-08d130c34da0/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 f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f --- 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 03:48:28,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:48:28,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:48:28,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:48:28,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:48:28,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:48:28,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:48:28,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:48:28,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:48:28,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:48:28,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:48:28,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:48:28,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:48:28,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:48:28,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:48:28,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:48:28,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:48:28,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:48:28,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:48:28,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:48:28,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:48:28,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:48:28,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:48:28,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:48:28,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:48:28,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:48:28,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:48:28,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:48:28,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:48:28,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:48:28,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:48:28,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:48:28,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:48:28,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:48:28,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:48:28,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:48:28,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:48:28,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:48:28,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:48:28,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:48:28,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:48:28,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:48:28,656 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:48:28,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:48:28,657 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:48:28,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:48:28,659 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:48:28,659 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:48:28,659 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:48:28,659 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:48:28,660 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:48:28,660 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:48:28,661 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:48:28,661 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:48:28,661 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:48:28,662 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:48:28,662 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:48:28,662 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:48:28,662 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:48:28,662 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:48:28,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:48:28,663 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:48:28,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:48:28,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:48:28,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:48:28,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:48:28,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:48:28,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:48:28,665 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:48:28,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:48:28,667 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:48:28,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:48:28,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:48:28,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:48:28,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:48:28,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:48:28,668 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:48:28,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:48:28,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:48:28,669 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:48:28,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:48:28,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:48:28,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:48:28,670 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_d799b7a7-b318-4841-8787-08d130c34da0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f [2022-11-03 03:48:28,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:48:29,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:48:29,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:48:29,007 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:48:29,008 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:48:29,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2022-11-03 03:48:29,080 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/data/f7a8a4b89/97d652c39db548af9ba8f33f3b8230e9/FLAG2bf93117d [2022-11-03 03:48:29,708 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:48:29,711 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2022-11-03 03:48:29,732 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/data/f7a8a4b89/97d652c39db548af9ba8f33f3b8230e9/FLAG2bf93117d [2022-11-03 03:48:29,991 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/data/f7a8a4b89/97d652c39db548af9ba8f33f3b8230e9 [2022-11-03 03:48:29,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:48:30,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:48:30,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:48:30,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:48:30,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:48:30,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:48:29" (1/1) ... [2022-11-03 03:48:30,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4938b805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:30, skipping insertion in model container [2022-11-03 03:48:30,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:48:29" (1/1) ... [2022-11-03 03:48:30,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:48:30,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:48:30,337 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_d799b7a7-b318-4841-8787-08d130c34da0/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c[3777,3790] [2022-11-03 03:48:30,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:48:30,433 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:48:30,456 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_d799b7a7-b318-4841-8787-08d130c34da0/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c[3777,3790] [2022-11-03 03:48:30,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:48:30,522 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:48:30,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:30 WrapperNode [2022-11-03 03:48:30,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:48:30,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:48:30,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:48:30,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:48:30,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:30" (1/1) ... [2022-11-03 03:48:30,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:30" (1/1) ... [2022-11-03 03:48:30,574 INFO L138 Inliner]: procedures = 57, calls = 160, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 268 [2022-11-03 03:48:30,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:48:30,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:48:30,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:48:30,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:48:30,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:30" (1/1) ... [2022-11-03 03:48:30,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:30" (1/1) ... [2022-11-03 03:48:30,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:30" (1/1) ... [2022-11-03 03:48:30,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:30" (1/1) ... [2022-11-03 03:48:30,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:30" (1/1) ... [2022-11-03 03:48:30,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:30" (1/1) ... [2022-11-03 03:48:30,603 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:30" (1/1) ... [2022-11-03 03:48:30,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:30" (1/1) ... [2022-11-03 03:48:30,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:48:30,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:48:30,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:48:30,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:48:30,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:30" (1/1) ... [2022-11-03 03:48:30,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:48:30,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:48:30,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:48:30,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:48:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:48:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 03:48:30,714 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 03:48:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 03:48:30,714 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 03:48:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 03:48:30,715 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 03:48:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-03 03:48:30,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-03 03:48:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 03:48:30,715 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 03:48:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 03:48:30,716 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 03:48:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 03:48:30,716 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 03:48:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-03 03:48:30,717 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-03 03:48:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 03:48:30,718 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 03:48:30,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:48:30,718 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 03:48:30,718 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 03:48:30,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:48:30,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:48:30,854 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:48:30,856 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:48:31,219 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:48:31,379 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:48:31,379 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 03:48:31,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:31 BoogieIcfgContainer [2022-11-03 03:48:31,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:48:31,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:48:31,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:48:31,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:48:31,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:48:29" (1/3) ... [2022-11-03 03:48:31,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1330f7cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:48:31, skipping insertion in model container [2022-11-03 03:48:31,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:30" (2/3) ... [2022-11-03 03:48:31,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1330f7cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:48:31, skipping insertion in model container [2022-11-03 03:48:31,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:31" (3/3) ... [2022-11-03 03:48:31,405 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product61.cil.c [2022-11-03 03:48:31,424 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:48:31,425 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:48:31,503 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:48:31,525 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;@6852fef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:48:31,529 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:48:31,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 54 states have internal predecessors, (61), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 03:48:31,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 03:48:31,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:31,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:31,546 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:31,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:31,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1529820237, now seen corresponding path program 1 times [2022-11-03 03:48:31,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:31,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932115872] [2022-11-03 03:48:31,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:31,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:31,857 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 03:48:31,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:31,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932115872] [2022-11-03 03:48:31,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932115872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:31,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:31,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:48:31,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146644045] [2022-11-03 03:48:31,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:31,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:48:31,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:31,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:48:31,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:48:31,909 INFO L87 Difference]: Start difference. First operand has 74 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 54 states have internal predecessors, (61), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:48:32,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:32,017 INFO L93 Difference]: Finished difference Result 146 states and 195 transitions. [2022-11-03 03:48:32,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:48:32,023 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-03 03:48:32,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:32,036 INFO L225 Difference]: With dead ends: 146 [2022-11-03 03:48:32,036 INFO L226 Difference]: Without dead ends: 69 [2022-11-03 03:48:32,042 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 03:48:32,047 INFO L413 NwaCegarLoop]: 76 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, 76 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:32,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:48:32,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-03 03:48:32,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-03 03:48:32,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 50 states have internal predecessors, (53), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-03 03:48:32,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2022-11-03 03:48:32,121 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 16 [2022-11-03 03:48:32,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:32,122 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2022-11-03 03:48:32,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:48:32,124 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2022-11-03 03:48:32,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 03:48:32,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:32,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:32,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:48:32,129 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:32,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:32,130 INFO L85 PathProgramCache]: Analyzing trace with hash -2043320348, now seen corresponding path program 1 times [2022-11-03 03:48:32,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:32,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794137003] [2022-11-03 03:48:32,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:32,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:32,279 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 03:48:32,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:32,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794137003] [2022-11-03 03:48:32,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794137003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:32,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:32,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:48:32,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619566887] [2022-11-03 03:48:32,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:32,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:48:32,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:32,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:48:32,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:48:32,283 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:48:32,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:32,363 INFO L93 Difference]: Finished difference Result 115 states and 147 transitions. [2022-11-03 03:48:32,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:48:32,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-03 03:48:32,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:32,365 INFO L225 Difference]: With dead ends: 115 [2022-11-03 03:48:32,366 INFO L226 Difference]: Without dead ends: 61 [2022-11-03 03:48:32,367 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 03:48:32,368 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 7 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:32,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 115 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:48:32,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-03 03:48:32,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-03 03:48:32,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 45 states have internal predecessors, (47), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 03:48:32,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2022-11-03 03:48:32,378 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 17 [2022-11-03 03:48:32,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:32,379 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2022-11-03 03:48:32,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:48:32,380 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2022-11-03 03:48:32,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 03:48:32,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:32,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:32,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:48:32,381 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:32,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:32,382 INFO L85 PathProgramCache]: Analyzing trace with hash 729327852, now seen corresponding path program 1 times [2022-11-03 03:48:32,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:32,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100896188] [2022-11-03 03:48:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:32,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:32,532 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 03:48:32,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:32,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100896188] [2022-11-03 03:48:32,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100896188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:32,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:32,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:48:32,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937593773] [2022-11-03 03:48:32,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:32,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:48:32,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:32,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:48:32,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:48:32,536 INFO L87 Difference]: Start difference. First operand 61 states and 77 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:48:32,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:32,586 INFO L93 Difference]: Finished difference Result 120 states and 153 transitions. [2022-11-03 03:48:32,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:48:32,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-03 03:48:32,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:32,589 INFO L225 Difference]: With dead ends: 120 [2022-11-03 03:48:32,589 INFO L226 Difference]: Without dead ends: 61 [2022-11-03 03:48:32,590 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 03:48:32,591 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 66 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:32,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 60 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:48:32,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-03 03:48:32,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-03 03:48:32,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 45 states have internal predecessors, (46), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 03:48:32,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2022-11-03 03:48:32,609 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 19 [2022-11-03 03:48:32,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:32,610 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2022-11-03 03:48:32,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:48:32,610 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2022-11-03 03:48:32,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-03 03:48:32,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:32,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:32,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:48:32,612 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:32,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:32,613 INFO L85 PathProgramCache]: Analyzing trace with hash 465414933, now seen corresponding path program 1 times [2022-11-03 03:48:32,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:32,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694994148] [2022-11-03 03:48:32,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:32,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:32,798 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 03:48:32,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:32,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694994148] [2022-11-03 03:48:32,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694994148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:32,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:32,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:48:32,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036325688] [2022-11-03 03:48:32,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:32,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:48:32,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:32,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:48:32,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:48:32,801 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 03:48:33,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:33,129 INFO L93 Difference]: Finished difference Result 190 states and 234 transitions. [2022-11-03 03:48:33,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:48:33,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2022-11-03 03:48:33,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:33,132 INFO L225 Difference]: With dead ends: 190 [2022-11-03 03:48:33,132 INFO L226 Difference]: Without dead ends: 131 [2022-11-03 03:48:33,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:48:33,135 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 122 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:33,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 170 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 03:48:33,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-03 03:48:33,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 125. [2022-11-03 03:48:33,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 87 states have internal predecessors, (95), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-03 03:48:33,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2022-11-03 03:48:33,157 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 30 [2022-11-03 03:48:33,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:33,158 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2022-11-03 03:48:33,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 03:48:33,175 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2022-11-03 03:48:33,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-03 03:48:33,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:33,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:33,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:48:33,177 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:33,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:33,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1668464223, now seen corresponding path program 1 times [2022-11-03 03:48:33,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:33,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607513931] [2022-11-03 03:48:33,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:33,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:33,392 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 03:48:33,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:33,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607513931] [2022-11-03 03:48:33,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607513931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:33,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:33,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:48:33,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498583508] [2022-11-03 03:48:33,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:33,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:48:33,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:33,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:48:33,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:48:33,418 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:48:33,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:33,639 INFO L93 Difference]: Finished difference Result 371 states and 441 transitions. [2022-11-03 03:48:33,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:48:33,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-11-03 03:48:33,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:33,648 INFO L225 Difference]: With dead ends: 371 [2022-11-03 03:48:33,649 INFO L226 Difference]: Without dead ends: 248 [2022-11-03 03:48:33,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:48:33,660 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 54 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:33,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 321 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:48:33,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-11-03 03:48:33,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 236. [2022-11-03 03:48:33,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 149 states have (on average 1.1610738255033557) internal successors, (173), 162 states have internal predecessors, (173), 42 states have call successors, (42), 34 states have call predecessors, (42), 44 states have return successors, (56), 46 states have call predecessors, (56), 42 states have call successors, (56) [2022-11-03 03:48:33,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 271 transitions. [2022-11-03 03:48:33,725 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 271 transitions. Word has length 35 [2022-11-03 03:48:33,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:33,726 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 271 transitions. [2022-11-03 03:48:33,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:48:33,727 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 271 transitions. [2022-11-03 03:48:33,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-03 03:48:33,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:33,734 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:33,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:48:33,734 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:33,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:33,735 INFO L85 PathProgramCache]: Analyzing trace with hash -569823899, now seen corresponding path program 1 times [2022-11-03 03:48:33,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:33,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941725779] [2022-11-03 03:48:33,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:33,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:34,022 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 03:48:34,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:34,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941725779] [2022-11-03 03:48:34,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941725779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:34,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:34,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:48:34,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951517404] [2022-11-03 03:48:34,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:34,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:48:34,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:34,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:48:34,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:48:34,026 INFO L87 Difference]: Start difference. First operand 236 states and 271 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 03:48:34,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:34,278 INFO L93 Difference]: Finished difference Result 248 states and 283 transitions. [2022-11-03 03:48:34,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:48:34,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2022-11-03 03:48:34,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:34,283 INFO L225 Difference]: With dead ends: 248 [2022-11-03 03:48:34,283 INFO L226 Difference]: Without dead ends: 246 [2022-11-03 03:48:34,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:48:34,287 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 76 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:34,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 172 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:48:34,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-11-03 03:48:34,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 236. [2022-11-03 03:48:34,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 149 states have (on average 1.1476510067114094) internal successors, (171), 162 states have internal predecessors, (171), 42 states have call successors, (42), 34 states have call predecessors, (42), 44 states have return successors, (56), 46 states have call predecessors, (56), 42 states have call successors, (56) [2022-11-03 03:48:34,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 269 transitions. [2022-11-03 03:48:34,322 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 269 transitions. Word has length 38 [2022-11-03 03:48:34,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:34,323 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 269 transitions. [2022-11-03 03:48:34,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 03:48:34,323 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 269 transitions. [2022-11-03 03:48:34,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-03 03:48:34,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:34,325 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:34,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:48:34,325 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:34,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:34,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1814400766, now seen corresponding path program 1 times [2022-11-03 03:48:34,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:34,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127369399] [2022-11-03 03:48:34,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:34,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:34,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 03:48:34,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:34,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127369399] [2022-11-03 03:48:34,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127369399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:34,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:34,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:48:34,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066193463] [2022-11-03 03:48:34,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:34,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:48:34,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:34,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:48:34,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:48:34,693 INFO L87 Difference]: Start difference. First operand 236 states and 269 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-03 03:48:34,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:34,926 INFO L93 Difference]: Finished difference Result 588 states and 684 transitions. [2022-11-03 03:48:34,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:48:34,927 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 43 [2022-11-03 03:48:34,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:34,931 INFO L225 Difference]: With dead ends: 588 [2022-11-03 03:48:34,932 INFO L226 Difference]: Without dead ends: 354 [2022-11-03 03:48:34,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:48:34,936 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 99 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:34,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 314 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:48:34,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-03 03:48:34,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 310. [2022-11-03 03:48:35,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 199 states have (on average 1.135678391959799) internal successors, (226), 213 states have internal predecessors, (226), 53 states have call successors, (53), 47 states have call predecessors, (53), 57 states have return successors, (67), 57 states have call predecessors, (67), 53 states have call successors, (67) [2022-11-03 03:48:35,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 346 transitions. [2022-11-03 03:48:35,004 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 346 transitions. Word has length 43 [2022-11-03 03:48:35,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:35,005 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 346 transitions. [2022-11-03 03:48:35,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-03 03:48:35,005 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 346 transitions. [2022-11-03 03:48:35,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-03 03:48:35,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:35,010 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:35,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:48:35,010 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:35,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:35,011 INFO L85 PathProgramCache]: Analyzing trace with hash -959022314, now seen corresponding path program 1 times [2022-11-03 03:48:35,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:35,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379621548] [2022-11-03 03:48:35,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:35,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:35,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 03:48:35,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:35,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379621548] [2022-11-03 03:48:35,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379621548] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:48:35,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775794122] [2022-11-03 03:48:35,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:35,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:48:35,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:48:35,483 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:48:35,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:48:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:35,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-03 03:48:35,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:48:36,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:48:36,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:48:36,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 03:48:36,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775794122] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:48:36,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [862352516] [2022-11-03 03:48:36,787 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2022-11-03 03:48:36,788 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:48:36,791 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:48:36,796 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:48:36,796 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:48:41,723 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 294 for LOIs [2022-11-03 03:48:41,797 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 316 for LOIs [2022-11-03 03:48:43,898 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 311 for LOIs [2022-11-03 03:48:45,301 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 311 for LOIs [2022-11-03 03:48:47,189 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 312 for LOIs [2022-11-03 03:48:48,370 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 43 for LOIs [2022-11-03 03:48:48,376 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 292 for LOIs [2022-11-03 03:48:48,409 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:49:44,350 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4776#(and (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| ~methaneLevelCritical~0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~8#1|) (= ~head~0.offset 0) (<= 2 ~waterLevel~0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~8#1|) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1|) (<= 2 |old(~waterLevel~0)|) (= ~head~0.base 0) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0)) (<= 0 |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1|) (<= 0 |#StackHeapBarrier|) (<= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 1) (= ~pumpRunning~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 03:49:44,350 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:49:44,350 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:49:44,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 31 [2022-11-03 03:49:44,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239772101] [2022-11-03 03:49:44,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:49:44,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-03 03:49:44,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:49:44,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-03 03:49:44,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=432, Invalid=3228, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 03:49:44,354 INFO L87 Difference]: Start difference. First operand 310 states and 346 transitions. Second operand has 31 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 states have internal predecessors, (69), 8 states have call successors, (18), 6 states have call predecessors, (18), 13 states have return successors, (19), 15 states have call predecessors, (19), 7 states have call successors, (19) [2022-11-03 03:49:50,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:49:50,713 INFO L93 Difference]: Finished difference Result 1010 states and 1220 transitions. [2022-11-03 03:49:50,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-11-03 03:49:50,714 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 states have internal predecessors, (69), 8 states have call successors, (18), 6 states have call predecessors, (18), 13 states have return successors, (19), 15 states have call predecessors, (19), 7 states have call successors, (19) Word has length 46 [2022-11-03 03:49:50,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:49:50,721 INFO L225 Difference]: With dead ends: 1010 [2022-11-03 03:49:50,721 INFO L226 Difference]: Without dead ends: 695 [2022-11-03 03:49:50,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 101 SyntacticMatches, 7 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6324 ImplicationChecksByTransitivity, 60.0s TimeCoverageRelationStatistics Valid=1773, Invalid=15783, Unknown=0, NotChecked=0, Total=17556 [2022-11-03 03:49:50,730 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 1253 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 3499 mSolverCounterSat, 1111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 4610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1111 IncrementalHoareTripleChecker+Valid, 3499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:49:50,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1258 Valid, 474 Invalid, 4610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1111 Valid, 3499 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-03 03:49:50,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2022-11-03 03:49:50,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 561. [2022-11-03 03:49:50,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 359 states have (on average 1.1197771587743732) internal successors, (402), 385 states have internal predecessors, (402), 96 states have call successors, (96), 87 states have call predecessors, (96), 105 states have return successors, (121), 103 states have call predecessors, (121), 96 states have call successors, (121) [2022-11-03 03:49:50,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 619 transitions. [2022-11-03 03:49:50,799 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 619 transitions. Word has length 46 [2022-11-03 03:49:50,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:49:50,802 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 619 transitions. [2022-11-03 03:49:50,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 states have internal predecessors, (69), 8 states have call successors, (18), 6 states have call predecessors, (18), 13 states have return successors, (19), 15 states have call predecessors, (19), 7 states have call successors, (19) [2022-11-03 03:49:50,802 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 619 transitions. [2022-11-03 03:49:50,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-03 03:49:50,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:49:50,808 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:49:50,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:49:51,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:49:51,023 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:49:51,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:49:51,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1132846833, now seen corresponding path program 1 times [2022-11-03 03:49:51,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:49:51,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819785438] [2022-11-03 03:49:51,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:51,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:49:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:51,237 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:49:51,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:49:51,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819785438] [2022-11-03 03:49:51,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819785438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:49:51,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:49:51,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 03:49:51,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663938076] [2022-11-03 03:49:51,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:49:51,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 03:49:51,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:49:51,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 03:49:51,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-03 03:49:51,240 INFO L87 Difference]: Start difference. First operand 561 states and 619 transitions. Second operand has 10 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 03:49:51,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:49:51,680 INFO L93 Difference]: Finished difference Result 1073 states and 1212 transitions. [2022-11-03 03:49:51,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 03:49:51,681 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2022-11-03 03:49:51,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:49:51,682 INFO L225 Difference]: With dead ends: 1073 [2022-11-03 03:49:51,682 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 03:49:51,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-11-03 03:49:51,685 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 67 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:49:51,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 449 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 03:49:51,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 03:49:51,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 03:49:51,686 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 03:49:51,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 03:49:51,686 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2022-11-03 03:49:51,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:49:51,687 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 03:49:51,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 03:49:51,687 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 03:49:51,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 03:49:51,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:49:51,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 03:49:51,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 03:49:55,818 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 473 480) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (= |old(~pumpRunning~0)| 0)) [2022-11-03 03:49:55,819 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 473 480) no Hoare annotation was computed. [2022-11-03 03:49:55,819 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 363 369) no Hoare annotation was computed. [2022-11-03 03:49:55,819 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 363 369) the Hoare annotation is: true [2022-11-03 03:49:55,819 INFO L895 garLoopResultBuilder]: At program point L411(line 411) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-03 03:49:55,820 INFO L895 garLoopResultBuilder]: At program point L407(line 407) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-03 03:49:55,820 INFO L899 garLoopResultBuilder]: For program point L405(lines 405 413) no Hoare annotation was computed. [2022-11-03 03:49:55,820 INFO L895 garLoopResultBuilder]: At program point L401(lines 401 418) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-03 03:49:55,820 INFO L895 garLoopResultBuilder]: At program point L416(line 416) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not .cse1) (= ~pumpRunning~0 0) .cse0))) [2022-11-03 03:49:55,821 INFO L899 garLoopResultBuilder]: For program point L416-1(lines 397 421) no Hoare annotation was computed. [2022-11-03 03:49:55,821 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 397 421) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-03 03:49:55,821 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 397 421) no Hoare annotation was computed. [2022-11-03 03:49:55,821 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 122 133) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) [2022-11-03 03:49:55,821 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 122 133) no Hoare annotation was computed. [2022-11-03 03:49:55,821 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 227) no Hoare annotation was computed. [2022-11-03 03:49:55,822 INFO L895 garLoopResultBuilder]: At program point L217(lines 217 230) the Hoare annotation is: (let ((.cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0)) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (= |timeShift_processEnvironment_~tmp~4#1| ~methaneLevelCritical~0))) (and (or .cse0 .cse1 (not .cse2)) (or .cse3 .cse2 .cse1 (not .cse0)) (let ((.cse4 (= ~pumpRunning~0 0)) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or (and .cse4 .cse5) .cse1 (and .cse6 .cse4) (and .cse6 .cse2 .cse5) (and (not .cse7) .cse2 (= ~pumpRunning~0 1)))) (or .cse3 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse7) (or .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse5))) [2022-11-03 03:49:55,822 INFO L895 garLoopResultBuilder]: At program point L217-1(lines 209 233) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= |timeShift_processEnvironment_~tmp~4#1| ~methaneLevelCritical~0)) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (= ~pumpRunning~0 0))) (let ((.cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0)) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse6 (and .cse4 .cse9)) (.cse8 (and .cse3 .cse9 .cse5)) (.cse7 (= ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not .cse2)) (or .cse3 .cse2 .cse1 (and (<= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 0) (< 0 (+ |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 1)) (not .cse0))) (or .cse1 (and .cse4 .cse5) .cse6 (and (not .cse7) (= ~pumpRunning~0 1)) .cse8) (or .cse2 .cse1 .cse6 .cse8) (or .cse3 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse7) (or .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse5)))) [2022-11-03 03:49:55,822 INFO L899 garLoopResultBuilder]: For program point L350-1(lines 350 356) no Hoare annotation was computed. [2022-11-03 03:49:55,823 INFO L895 garLoopResultBuilder]: At program point L437(line 437) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 0) (= |timeShift_processEnvironment_~tmp~4#1| ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-03 03:49:55,823 INFO L895 garLoopResultBuilder]: At program point L433(line 433) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~4#1| ~methaneLevelCritical~0))))) [2022-11-03 03:49:55,823 INFO L895 garLoopResultBuilder]: At program point L429(line 429) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0)))) [2022-11-03 03:49:55,823 INFO L899 garLoopResultBuilder]: For program point L429-1(line 429) no Hoare annotation was computed. [2022-11-03 03:49:55,823 INFO L895 garLoopResultBuilder]: At program point L442(line 442) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0))) (or (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1)))) [2022-11-03 03:49:55,824 INFO L895 garLoopResultBuilder]: At program point L442-1(lines 423 447) the Hoare annotation is: (let ((.cse5 (= ~waterLevel~0 1)) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= |timeShift_processEnvironment_~tmp~4#1| ~methaneLevelCritical~0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1) .cse2 (and .cse3 .cse0) (and .cse3 .cse4 .cse1) (and (not .cse5) .cse4 (= ~pumpRunning~0 1)))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse2 .cse5) (or .cse2 (not (= |old(~pumpRunning~0)| 1)) .cse1))) [2022-11-03 03:49:55,824 INFO L895 garLoopResultBuilder]: At program point L215(line 215) the Hoare annotation is: (let ((.cse5 (= ~waterLevel~0 1)) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= |timeShift_processEnvironment_~tmp~4#1| ~methaneLevelCritical~0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1) .cse2 (and .cse3 .cse0) (and .cse3 .cse4 .cse1) (and (not .cse5) .cse4 (= ~pumpRunning~0 1)))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse2 .cse5) (or .cse2 (not (= |old(~pumpRunning~0)| 1)) .cse1))) [2022-11-03 03:49:55,824 INFO L899 garLoopResultBuilder]: For program point L343-1(lines 342 361) no Hoare annotation was computed. [2022-11-03 03:49:55,824 INFO L899 garLoopResultBuilder]: For program point L215-1(line 215) no Hoare annotation was computed. [2022-11-03 03:49:55,825 INFO L895 garLoopResultBuilder]: At program point L203(line 203) the Hoare annotation is: (not (= 1 ~systemActive~0)) [2022-11-03 03:49:55,825 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 339 362) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1)))) [2022-11-03 03:49:55,825 INFO L899 garLoopResultBuilder]: For program point L431(lines 431 439) no Hoare annotation was computed. [2022-11-03 03:49:55,825 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 444) no Hoare annotation was computed. [2022-11-03 03:49:55,825 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 339 362) no Hoare annotation was computed. [2022-11-03 03:49:55,825 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 203) no Hoare annotation was computed. [2022-11-03 03:49:55,826 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 237 266) no Hoare annotation was computed. [2022-11-03 03:49:55,826 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 237 266) the Hoare annotation is: true [2022-11-03 03:49:55,826 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 255) no Hoare annotation was computed. [2022-11-03 03:49:55,826 INFO L902 garLoopResultBuilder]: At program point L251-1(lines 251 255) the Hoare annotation is: true [2022-11-03 03:49:55,826 INFO L902 garLoopResultBuilder]: At program point L247-2(lines 247 261) the Hoare annotation is: true [2022-11-03 03:49:55,826 INFO L902 garLoopResultBuilder]: At program point L243(line 243) the Hoare annotation is: true [2022-11-03 03:49:55,827 INFO L899 garLoopResultBuilder]: For program point L243-1(line 243) no Hoare annotation was computed. [2022-11-03 03:49:55,827 INFO L902 garLoopResultBuilder]: At program point L262(lines 237 266) the Hoare annotation is: true [2022-11-03 03:49:55,827 INFO L899 garLoopResultBuilder]: For program point L258(line 258) no Hoare annotation was computed. [2022-11-03 03:49:55,827 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 134 142) the Hoare annotation is: true [2022-11-03 03:49:55,827 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 134 142) no Hoare annotation was computed. [2022-11-03 03:49:55,827 INFO L895 garLoopResultBuilder]: At program point L320(lines 320 327) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-03 03:49:55,828 INFO L902 garLoopResultBuilder]: At program point L320-2(lines 320 327) the Hoare annotation is: true [2022-11-03 03:49:55,828 INFO L895 garLoopResultBuilder]: At program point L622-2(lines 616 627) the Hoare annotation is: (and (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 03:49:55,828 INFO L899 garLoopResultBuilder]: For program point L606(lines 606 612) no Hoare annotation was computed. [2022-11-03 03:49:55,828 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 03:49:55,828 INFO L899 garLoopResultBuilder]: For program point L606-1(lines 606 612) no Hoare annotation was computed. [2022-11-03 03:49:55,828 INFO L902 garLoopResultBuilder]: At program point L635(lines 576 639) the Hoare annotation is: true [2022-11-03 03:49:55,829 INFO L895 garLoopResultBuilder]: At program point L598(line 598) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2022-11-03 03:49:55,829 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 03:49:55,829 INFO L895 garLoopResultBuilder]: At program point L632(lines 585 633) the Hoare annotation is: false [2022-11-03 03:49:55,829 INFO L899 garLoopResultBuilder]: For program point L587(lines 586 631) no Hoare annotation was computed. [2022-11-03 03:49:55,829 INFO L895 garLoopResultBuilder]: At program point L608(line 608) the Hoare annotation is: (and (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 03:49:55,830 INFO L895 garLoopResultBuilder]: At program point L629(lines 586 631) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2022-11-03 03:49:55,830 INFO L899 garLoopResultBuilder]: For program point L596(lines 596 602) no Hoare annotation was computed. [2022-11-03 03:49:55,830 INFO L899 garLoopResultBuilder]: For program point L596-1(lines 596 602) no Hoare annotation was computed. [2022-11-03 03:49:55,830 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 371 395) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-03 03:49:55,830 INFO L895 garLoopResultBuilder]: At program point L461(line 461) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not .cse1) .cse0 (and (not (= ~waterLevel~0 1)) (= ~pumpRunning~0 0))))) [2022-11-03 03:49:55,831 INFO L895 garLoopResultBuilder]: At program point L461-1(line 461) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not .cse1) .cse0 (and (not (= ~waterLevel~0 1)) (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_#t~ret16#1|))))) [2022-11-03 03:49:55,831 INFO L895 garLoopResultBuilder]: At program point L385(line 385) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not .cse1) .cse0 (and (= ~pumpRunning~0 0) (or (not (= ~waterLevel~0 1)) (= |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 0)))))) [2022-11-03 03:49:55,831 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 371 395) no Hoare annotation was computed. [2022-11-03 03:49:55,831 INFO L899 garLoopResultBuilder]: For program point L379(lines 379 387) no Hoare annotation was computed. [2022-11-03 03:49:55,831 INFO L895 garLoopResultBuilder]: At program point L375(lines 375 392) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-03 03:49:55,832 INFO L895 garLoopResultBuilder]: At program point L390(line 390) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-03 03:49:55,832 INFO L899 garLoopResultBuilder]: For program point L390-1(lines 371 395) no Hoare annotation was computed. [2022-11-03 03:49:55,832 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 110 121) no Hoare annotation was computed. [2022-11-03 03:49:55,832 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 110 121) the Hoare annotation is: true [2022-11-03 03:49:55,832 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 481 491) the Hoare annotation is: true [2022-11-03 03:49:55,832 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 481 491) no Hoare annotation was computed. [2022-11-03 03:49:55,833 INFO L902 garLoopResultBuilder]: At program point L486(line 486) the Hoare annotation is: true [2022-11-03 03:49:55,833 INFO L899 garLoopResultBuilder]: For program point L486-1(line 486) no Hoare annotation was computed. [2022-11-03 03:49:55,836 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:49:55,838 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:49:55,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:49:55 BoogieIcfgContainer [2022-11-03 03:49:55,873 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:49:55,873 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:49:55,874 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:49:55,874 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:49:55,875 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:31" (3/4) ... [2022-11-03 03:49:55,878 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 03:49:55,884 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 03:49:55,884 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 03:49:55,884 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 03:49:55,884 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 03:49:55,884 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 03:49:55,884 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-03 03:49:55,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 03:49:55,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 03:49:55,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-03 03:49:55,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-03 03:49:55,901 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2022-11-03 03:49:55,903 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-03 03:49:55,903 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-03 03:49:55,904 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 03:49:55,904 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 03:49:55,904 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:49:55,905 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:49:55,932 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (pumpRunning == \old(pumpRunning) || !(1 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1) [2022-11-03 03:49:55,934 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || tmp == methaneLevelCritical) [2022-11-03 03:49:55,934 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) [2022-11-03 03:49:55,935 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || !(tmp == 0))) && (((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || tmp == methaneLevelCritical) [2022-11-03 03:49:55,936 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) [2022-11-03 03:49:55,936 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tmp == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || ((tmp___0 <= 0 && 0 < tmp___0 + 1) && !(tmp == 0)))) && ((((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (!(waterLevel == 1) && pumpRunning == 1)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == methaneLevelCritical))) && (((methaneLevelCritical == 0 || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || tmp == methaneLevelCritical) [2022-11-03 03:49:55,936 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((!(waterLevel == 1) && pumpRunning == 0) && methaneLevelCritical == aux-isMethaneAlarm()-aux)) [2022-11-03 03:49:55,986 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 03:49:55,987 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:49:55,987 INFO L158 Benchmark]: Toolchain (without parser) took 85987.87ms. Allocated memory was 104.9MB in the beginning and 293.6MB in the end (delta: 188.7MB). Free memory was 65.0MB in the beginning and 238.8MB in the end (delta: -173.8MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2022-11-03 03:49:55,988 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 104.9MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:49:55,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.86ms. Allocated memory is still 104.9MB. Free memory was 64.8MB in the beginning and 70.6MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 03:49:55,989 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.22ms. Allocated memory is still 104.9MB. Free memory was 70.6MB in the beginning and 68.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:49:55,989 INFO L158 Benchmark]: Boogie Preprocessor took 46.98ms. Allocated memory is still 104.9MB. Free memory was 68.1MB in the beginning and 66.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:49:55,989 INFO L158 Benchmark]: RCFGBuilder took 759.04ms. Allocated memory is still 104.9MB. Free memory was 66.1MB in the beginning and 75.5MB in the end (delta: -9.5MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2022-11-03 03:49:55,991 INFO L158 Benchmark]: TraceAbstraction took 84476.94ms. Allocated memory was 104.9MB in the beginning and 293.6MB in the end (delta: 188.7MB). Free memory was 74.6MB in the beginning and 245.0MB in the end (delta: -170.5MB). Peak memory consumption was 176.3MB. Max. memory is 16.1GB. [2022-11-03 03:49:55,991 INFO L158 Benchmark]: Witness Printer took 113.35ms. Allocated memory is still 293.6MB. Free memory was 245.0MB in the beginning and 238.8MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 03:49:55,994 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 104.9MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.86ms. Allocated memory is still 104.9MB. Free memory was 64.8MB in the beginning and 70.6MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.22ms. Allocated memory is still 104.9MB. Free memory was 70.6MB in the beginning and 68.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.98ms. Allocated memory is still 104.9MB. Free memory was 68.1MB in the beginning and 66.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 759.04ms. Allocated memory is still 104.9MB. Free memory was 66.1MB in the beginning and 75.5MB in the end (delta: -9.5MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * TraceAbstraction took 84476.94ms. Allocated memory was 104.9MB in the beginning and 293.6MB in the end (delta: 188.7MB). Free memory was 74.6MB in the beginning and 245.0MB in the end (delta: -170.5MB). Peak memory consumption was 176.3MB. Max. memory is 16.1GB. * Witness Printer took 113.35ms. Allocated memory is still 293.6MB. Free memory was 245.0MB in the beginning and 238.8MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 203]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 84.4s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1770 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1744 mSDsluCounter, 2151 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1861 mSDsCounter, 1264 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4594 IncrementalHoareTripleChecker+Invalid, 5858 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1264 mSolverCounterUnsat, 675 mSDtfsCounter, 4594 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 313 GetRequests, 129 SyntacticMatches, 7 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6379 ImplicationChecksByTransitivity, 60.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=561occurred in iteration=8, InterpolantAutomatonStates: 136, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 206 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 1113 PreInvPairs, 1295 NumberOfFragments, 878 HoareAnnotationTreeSize, 1113 FomulaSimplifications, 2417 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 42 FomulaSimplificationsInter, 23817 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 378 NumberOfCodeBlocks, 378 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 413 ConstructedInterpolants, 0 QuantifiedInterpolants, 1311 SizeOfPredicates, 11 NumberOfNonLiveVariables, 367 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 43/47 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: !(1 == systemActive) - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: (((((tmp == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || !(tmp == 0))) && (((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || tmp == methaneLevelCritical) - InvariantResult [Line: 339]: Loop Invariant Derived loop invariant: (pumpRunning == \old(pumpRunning) || !(1 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1) - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: ((((((tmp == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || ((tmp___0 <= 0 && 0 < tmp___0 + 1) && !(tmp == 0)))) && ((((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (!(waterLevel == 1) && pumpRunning == 1)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == methaneLevelCritical))) && (((methaneLevelCritical == 0 || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || tmp == methaneLevelCritical) - InvariantResult [Line: 247]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 401]: Loop Invariant Derived loop invariant: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 423]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || tmp == methaneLevelCritical) - InvariantResult [Line: 375]: Loop Invariant Derived loop invariant: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) || ((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 461]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((!(waterLevel == 1) && pumpRunning == 0) && methaneLevelCritical == aux-isMethaneAlarm()-aux)) - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 RESULT: Ultimate proved your program to be correct! [2022-11-03 03:49:56,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d799b7a7-b318-4841-8787-08d130c34da0/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