./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 99857c88a5e40ad3ad2fa6a4e628ec2c8e519c722ca50ab478c6824b27ce30a6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:33:26,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:33:26,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:33:26,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:33:26,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:33:26,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:33:26,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:33:26,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:33:26,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:33:26,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:33:26,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:33:26,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:33:26,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:33:26,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:33:26,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:33:26,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:33:26,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:33:26,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:33:26,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:33:26,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:33:26,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:33:26,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:33:26,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:33:26,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:33:26,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:33:26,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:33:26,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:33:26,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:33:26,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:33:26,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:33:26,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:33:26,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:33:26,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:33:26,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:33:26,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:33:26,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:33:26,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:33:26,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:33:26,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:33:26,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:33:26,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:33:26,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:33:26,289 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:33:26,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:33:26,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:33:26,290 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:33:26,291 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:33:26,291 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:33:26,292 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:33:26,292 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:33:26,292 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:33:26,293 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:33:26,293 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:33:26,293 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:33:26,293 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:33:26,294 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:33:26,294 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:33:26,294 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:33:26,294 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:33:26,295 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:33:26,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:33:26,296 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:33:26,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:33:26,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:33:26,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:33:26,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:33:26,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:33:26,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:33:26,298 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:33:26,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:33:26,298 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:33:26,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:33:26,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:33:26,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:33:26,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:33:26,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:33:26,300 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:33:26,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:33:26,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:33:26,300 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:33:26,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:33:26,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:33:26,301 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:33:26,301 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_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99857c88a5e40ad3ad2fa6a4e628ec2c8e519c722ca50ab478c6824b27ce30a6 [2022-11-23 15:33:26,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:33:26,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:33:26,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:33:26,615 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:33:26,615 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:33:26,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec2_product11.cil.c [2022-11-23 15:33:29,735 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:33:30,017 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:33:30,018 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/sv-benchmarks/c/product-lines/minepump_spec2_product11.cil.c [2022-11-23 15:33:30,041 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW/data/73e58c014/d57aa5cf59ce47b29309102bf1895b3b/FLAG6e5b40b9d [2022-11-23 15:33:30,056 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW/data/73e58c014/d57aa5cf59ce47b29309102bf1895b3b [2022-11-23 15:33:30,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:33:30,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:33:30,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:33:30,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:33:30,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:33:30,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:33:30" (1/1) ... [2022-11-23 15:33:30,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e32a352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:30, skipping insertion in model container [2022-11-23 15:33:30,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:33:30" (1/1) ... [2022-11-23 15:33:30,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:33:30,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:33:30,376 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/sv-benchmarks/c/product-lines/minepump_spec2_product11.cil.c[14638,14651] [2022-11-23 15:33:30,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:33:30,419 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:33:30,509 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/sv-benchmarks/c/product-lines/minepump_spec2_product11.cil.c[14638,14651] [2022-11-23 15:33:30,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:33:30,533 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:33:30,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:30 WrapperNode [2022-11-23 15:33:30,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:33:30,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:33:30,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:33:30,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:33:30,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:30" (1/1) ... [2022-11-23 15:33:30,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:30" (1/1) ... [2022-11-23 15:33:30,578 INFO L138 Inliner]: procedures = 52, calls = 93, calls flagged for inlining = 21, calls inlined = 16, statements flattened = 139 [2022-11-23 15:33:30,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:33:30,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:33:30,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:33:30,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:33:30,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:30" (1/1) ... [2022-11-23 15:33:30,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:30" (1/1) ... [2022-11-23 15:33:30,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:30" (1/1) ... [2022-11-23 15:33:30,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:30" (1/1) ... [2022-11-23 15:33:30,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:30" (1/1) ... [2022-11-23 15:33:30,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:30" (1/1) ... [2022-11-23 15:33:30,636 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:30" (1/1) ... [2022-11-23 15:33:30,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:30" (1/1) ... [2022-11-23 15:33:30,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:33:30,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:33:30,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:33:30,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:33:30,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:30" (1/1) ... [2022-11-23 15:33:30,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:33:30,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:33:30,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:33:30,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:33:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:33:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 15:33:30,769 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 15:33:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-23 15:33:30,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-23 15:33:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 15:33:30,770 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 15:33:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 15:33:30,770 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 15:33:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:33:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 15:33:30,771 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 15:33:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:33:30,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:33:30,876 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:33:30,879 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:33:31,138 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:33:31,259 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:33:31,259 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:33:31,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:33:31 BoogieIcfgContainer [2022-11-23 15:33:31,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:33:31,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:33:31,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:33:31,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:33:31,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:33:30" (1/3) ... [2022-11-23 15:33:31,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7516e901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:33:31, skipping insertion in model container [2022-11-23 15:33:31,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:30" (2/3) ... [2022-11-23 15:33:31,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7516e901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:33:31, skipping insertion in model container [2022-11-23 15:33:31,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:33:31" (3/3) ... [2022-11-23 15:33:31,271 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product11.cil.c [2022-11-23 15:33:31,291 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:33:31,291 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:33:31,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:33:31,349 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;@431afc5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:33:31,349 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:33:31,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 30 states have internal predecessors, (37), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-23 15:33:31,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 15:33:31,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:33:31,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:33:31,363 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:33:31,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:33:31,368 INFO L85 PathProgramCache]: Analyzing trace with hash -653056809, now seen corresponding path program 1 times [2022-11-23 15:33:31,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:33:31,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982467688] [2022-11-23 15:33:31,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:33:31,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:33:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:33:31,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:33:31,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:33:31,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982467688] [2022-11-23 15:33:31,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982467688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:33:31,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:33:31,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:33:31,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861171100] [2022-11-23 15:33:31,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:33:31,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:33:31,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:33:31,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:33:31,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:33:31,632 INFO L87 Difference]: Start difference. First operand has 40 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 30 states have internal predecessors, (37), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-11-23 15:33:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:33:31,734 INFO L93 Difference]: Finished difference Result 78 states and 103 transitions. [2022-11-23 15:33:31,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:33:31,741 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 15 [2022-11-23 15:33:31,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:33:31,748 INFO L225 Difference]: With dead ends: 78 [2022-11-23 15:33:31,749 INFO L226 Difference]: Without dead ends: 35 [2022-11-23 15:33:31,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:33:31,758 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:33:31,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:33:31,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-23 15:33:31,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-23 15:33:31,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-23 15:33:31,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-11-23 15:33:31,795 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 15 [2022-11-23 15:33:31,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:33:31,796 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-11-23 15:33:31,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-11-23 15:33:31,796 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-11-23 15:33:31,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 15:33:31,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:33:31,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:33:31,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:33:31,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:33:31,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:33:31,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1321883800, now seen corresponding path program 1 times [2022-11-23 15:33:31,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:33:31,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556767109] [2022-11-23 15:33:31,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:33:31,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:33:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:33:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:33:31,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:33:31,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556767109] [2022-11-23 15:33:31,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556767109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:33:31,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:33:31,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:33:31,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096676930] [2022-11-23 15:33:31,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:33:31,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:33:31,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:33:31,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:33:31,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:33:31,969 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2022-11-23 15:33:32,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:33:32,005 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2022-11-23 15:33:32,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:33:32,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 [2022-11-23 15:33:32,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:33:32,007 INFO L225 Difference]: With dead ends: 47 [2022-11-23 15:33:32,007 INFO L226 Difference]: Without dead ends: 27 [2022-11-23 15:33:32,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:33:32,009 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 7 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:33:32,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 33 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:33:32,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-23 15:33:32,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-23 15:33:32,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 15:33:32,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-11-23 15:33:32,017 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2022-11-23 15:33:32,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:33:32,017 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-11-23 15:33:32,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2022-11-23 15:33:32,018 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-11-23 15:33:32,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 15:33:32,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:33:32,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:33:32,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:33:32,019 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:33:32,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:33:32,020 INFO L85 PathProgramCache]: Analyzing trace with hash -287901162, now seen corresponding path program 1 times [2022-11-23 15:33:32,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:33:32,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181879142] [2022-11-23 15:33:32,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:33:32,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:33:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:33:32,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:33:32,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:33:32,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181879142] [2022-11-23 15:33:32,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181879142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:33:32,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:33:32,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:33:32,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548273677] [2022-11-23 15:33:32,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:33:32,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:33:32,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:33:32,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:33:32,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:33:32,332 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:33:32,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:33:32,502 INFO L93 Difference]: Finished difference Result 74 states and 87 transitions. [2022-11-23 15:33:32,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:33:32,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-23 15:33:32,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:33:32,509 INFO L225 Difference]: With dead ends: 74 [2022-11-23 15:33:32,510 INFO L226 Difference]: Without dead ends: 49 [2022-11-23 15:33:32,510 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 [2022-11-23 15:33:32,512 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 14 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:33:32,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 103 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:33:32,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-23 15:33:32,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2022-11-23 15:33:32,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 34 states have internal predecessors, (37), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-23 15:33:32,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-11-23 15:33:32,525 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 18 [2022-11-23 15:33:32,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:33:32,526 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-11-23 15:33:32,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:33:32,526 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-11-23 15:33:32,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:33:32,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:33:32,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:33:32,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:33:32,528 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:33:32,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:33:32,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1425845589, now seen corresponding path program 1 times [2022-11-23 15:33:32,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:33:32,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6559041] [2022-11-23 15:33:32,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:33:32,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:33:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:33:32,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:33:32,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:33:32,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6559041] [2022-11-23 15:33:32,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6559041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:33:32,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:33:32,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:33:32,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307769942] [2022-11-23 15:33:32,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:33:32,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:33:32,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:33:32,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:33:32,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:33:32,654 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:33:32,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:33:32,726 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2022-11-23 15:33:32,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:33:32,727 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), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-23 15:33:32,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:33:32,735 INFO L225 Difference]: With dead ends: 70 [2022-11-23 15:33:32,736 INFO L226 Difference]: Without dead ends: 68 [2022-11-23 15:33:32,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:33:32,744 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 12 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:33:32,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 42 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:33:32,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-23 15:33:32,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-23 15:33:32,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 51 states have internal predecessors, (56), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2022-11-23 15:33:32,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2022-11-23 15:33:32,768 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 21 [2022-11-23 15:33:32,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:33:32,769 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2022-11-23 15:33:32,769 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), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:33:32,769 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2022-11-23 15:33:32,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-23 15:33:32,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:33:32,772 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 15:33:32,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:33:32,772 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:33:32,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:33:32,773 INFO L85 PathProgramCache]: Analyzing trace with hash 95269024, now seen corresponding path program 1 times [2022-11-23 15:33:32,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:33:32,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803672585] [2022-11-23 15:33:32,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:33:32,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:33:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:33:33,184 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:33:33,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:33:33,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803672585] [2022-11-23 15:33:33,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803672585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:33:33,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:33:33,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:33:33,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295626828] [2022-11-23 15:33:33,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:33:33,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:33:33,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:33:33,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:33:33,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:33:33,188 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:33:33,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:33:33,285 INFO L93 Difference]: Finished difference Result 92 states and 109 transitions. [2022-11-23 15:33:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:33:33,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2022-11-23 15:33:33,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:33:33,287 INFO L225 Difference]: With dead ends: 92 [2022-11-23 15:33:33,288 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:33:33,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:33:33,294 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 20 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:33:33,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 33 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:33:33,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:33:33,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:33:33,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:33:33,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:33:33,301 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2022-11-23 15:33:33,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:33:33,301 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:33:33,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:33:33,301 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:33:33,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:33:33,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:33:33,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:33:33,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:33:33,577 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 749 760) the Hoare annotation is: true [2022-11-23 15:33:33,577 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 749 760) no Hoare annotation was computed. [2022-11-23 15:33:33,577 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 804 833) no Hoare annotation was computed. [2022-11-23 15:33:33,577 INFO L902 garLoopResultBuilder]: At program point L829(lines 804 833) the Hoare annotation is: true [2022-11-23 15:33:33,578 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 804 833) the Hoare annotation is: true [2022-11-23 15:33:33,578 INFO L899 garLoopResultBuilder]: For program point L825(line 825) no Hoare annotation was computed. [2022-11-23 15:33:33,578 INFO L899 garLoopResultBuilder]: For program point L818(lines 818 822) no Hoare annotation was computed. [2022-11-23 15:33:33,578 INFO L902 garLoopResultBuilder]: At program point L818-1(lines 818 822) the Hoare annotation is: true [2022-11-23 15:33:33,578 INFO L902 garLoopResultBuilder]: At program point L814-2(lines 814 828) the Hoare annotation is: true [2022-11-23 15:33:33,579 INFO L902 garLoopResultBuilder]: At program point L810(line 810) the Hoare annotation is: true [2022-11-23 15:33:33,579 INFO L899 garLoopResultBuilder]: For program point L810-1(line 810) no Hoare annotation was computed. [2022-11-23 15:33:33,580 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 761 769) the Hoare annotation is: true [2022-11-23 15:33:33,580 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 761 769) no Hoare annotation was computed. [2022-11-23 15:33:33,580 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 714) no Hoare annotation was computed. [2022-11-23 15:33:33,581 INFO L895 garLoopResultBuilder]: At program point L700(lines 700 717) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~5#1| 0)))) [2022-11-23 15:33:33,581 INFO L895 garLoopResultBuilder]: At program point L700-1(lines 692 720) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~5#1| 0)))) [2022-11-23 15:33:33,581 INFO L895 garLoopResultBuilder]: At program point L698(line 698) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0))) [2022-11-23 15:33:33,581 INFO L899 garLoopResultBuilder]: For program point L698-1(line 698) no Hoare annotation was computed. [2022-11-23 15:33:33,581 INFO L895 garLoopResultBuilder]: At program point L678(line 678) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= ~pumpRunning~0 0))) [2022-11-23 15:33:33,582 INFO L899 garLoopResultBuilder]: For program point L705(lines 705 711) no Hoare annotation was computed. [2022-11-23 15:33:33,582 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 467 490) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0))) [2022-11-23 15:33:33,582 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 467 490) no Hoare annotation was computed. [2022-11-23 15:33:33,582 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 678) no Hoare annotation was computed. [2022-11-23 15:33:33,583 INFO L895 garLoopResultBuilder]: At program point L886(lines 886 893) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0)) [2022-11-23 15:33:33,583 INFO L902 garLoopResultBuilder]: At program point L886-2(lines 886 893) the Hoare annotation is: true [2022-11-23 15:33:33,583 INFO L899 garLoopResultBuilder]: For program point L618(lines 617 664) no Hoare annotation was computed. [2022-11-23 15:33:33,601 INFO L895 garLoopResultBuilder]: At program point L639(line 639) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-23 15:33:33,601 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 15:33:33,602 INFO L902 garLoopResultBuilder]: At program point L668(lines 607 672) the Hoare annotation is: true [2022-11-23 15:33:33,602 INFO L899 garLoopResultBuilder]: For program point L627(lines 627 633) no Hoare annotation was computed. [2022-11-23 15:33:33,602 INFO L899 garLoopResultBuilder]: For program point L627-1(lines 627 633) no Hoare annotation was computed. [2022-11-23 15:33:33,602 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:33:33,603 INFO L895 garLoopResultBuilder]: At program point L665(lines 616 666) the Hoare annotation is: false [2022-11-23 15:33:33,603 INFO L895 garLoopResultBuilder]: At program point L653-2(lines 647 660) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-23 15:33:33,603 INFO L899 garLoopResultBuilder]: For program point L637(lines 637 643) no Hoare annotation was computed. [2022-11-23 15:33:33,604 INFO L895 garLoopResultBuilder]: At program point L637-1(lines 637 643) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-23 15:33:33,604 INFO L895 garLoopResultBuilder]: At program point L662(lines 617 664) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-23 15:33:33,604 INFO L895 garLoopResultBuilder]: At program point L629(line 629) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-23 15:33:33,604 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 737 748) no Hoare annotation was computed. [2022-11-23 15:33:33,604 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 737 748) the Hoare annotation is: true [2022-11-23 15:33:33,610 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-23 15:33:33,614 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:33:33,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:33:33 BoogieIcfgContainer [2022-11-23 15:33:33,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:33:33,645 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:33:33,645 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:33:33,645 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:33:33,646 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:33:31" (3/4) ... [2022-11-23 15:33:33,649 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:33:33,655 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 15:33:33,655 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 15:33:33,655 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-23 15:33:33,655 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 15:33:33,656 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 15:33:33,664 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2022-11-23 15:33:33,664 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-23 15:33:33,665 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 15:33:33,665 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:33:33,665 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:33:33,692 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0) [2022-11-23 15:33:33,693 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) [2022-11-23 15:33:33,693 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) [2022-11-23 15:33:33,693 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0) [2022-11-23 15:33:33,713 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:33:33,714 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:33:33,714 INFO L158 Benchmark]: Toolchain (without parser) took 3653.86ms. Allocated memory is still 184.5MB. Free memory was 152.4MB in the beginning and 146.1MB in the end (delta: 6.3MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2022-11-23 15:33:33,714 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:33:33,715 INFO L158 Benchmark]: CACSL2BoogieTranslator took 471.91ms. Allocated memory is still 184.5MB. Free memory was 151.7MB in the beginning and 133.7MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:33:33,715 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.03ms. Allocated memory is still 184.5MB. Free memory was 133.7MB in the beginning and 131.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:33:33,716 INFO L158 Benchmark]: Boogie Preprocessor took 72.44ms. Allocated memory is still 184.5MB. Free memory was 131.6MB in the beginning and 130.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:33:33,716 INFO L158 Benchmark]: RCFGBuilder took 607.11ms. Allocated memory is still 184.5MB. Free memory was 130.3MB in the beginning and 109.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 15:33:33,716 INFO L158 Benchmark]: TraceAbstraction took 2379.88ms. Allocated memory is still 184.5MB. Free memory was 108.6MB in the beginning and 151.4MB in the end (delta: -42.8MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-23 15:33:33,717 INFO L158 Benchmark]: Witness Printer took 68.76ms. Allocated memory is still 184.5MB. Free memory was 151.4MB in the beginning and 146.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:33:33,718 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 471.91ms. Allocated memory is still 184.5MB. Free memory was 151.7MB in the beginning and 133.7MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.03ms. Allocated memory is still 184.5MB. Free memory was 133.7MB in the beginning and 131.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.44ms. Allocated memory is still 184.5MB. Free memory was 131.6MB in the beginning and 130.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 607.11ms. Allocated memory is still 184.5MB. Free memory was 130.3MB in the beginning and 109.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2379.88ms. Allocated memory is still 184.5MB. Free memory was 108.6MB in the beginning and 151.4MB in the end (delta: -42.8MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 68.76ms. Allocated memory is still 184.5MB. Free memory was 151.4MB in the beginning and 146.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 678]: 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 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 246 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 126 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 120 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 88 PreInvPairs, 103 NumberOfFragments, 163 HoareAnnotationTreeSize, 88 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 23 FomulaSimplificationsInter, 260 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 219 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 15/15 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: 700]: Loop Invariant Derived loop invariant: ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) - InvariantResult [Line: 814]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 467]: Loop Invariant Derived loop invariant: (!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0) - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 804]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 692]: Loop Invariant Derived loop invariant: ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) - InvariantResult [Line: 886]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 678]: Loop Invariant Derived loop invariant: !(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0) - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 886]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0 - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 637]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 RESULT: Ultimate proved your program to be correct! [2022-11-23 15:33:33,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50ce6fc-ed90-46db-9e53-7e6b2a75c90a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE