./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --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 cb53e49317620dbde25b1d7f6fa7078b4950e13e4d138c624b27be1c4ee0f3ad --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:52:05,119 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:52:05,216 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:52:05,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:52:05,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:52:05,273 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:52:05,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:52:05,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:52:05,276 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:52:05,277 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:52:05,277 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:52:05,278 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:52:05,278 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:52:05,278 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:52:05,278 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:52:05,280 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:52:05,281 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:52:05,281 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:52:05,281 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:52:05,281 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:52:05,282 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:52:05,282 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:52:05,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:52:05,282 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:52:05,283 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:52:05,283 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:52:05,283 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:52:05,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:52:05,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:52:05,283 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:52:05,283 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:52:05,283 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:52:05,283 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:52:05,283 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:52:05,284 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:52:05,284 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:52:05,284 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:52:05,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:52:05,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:52:05,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:52:05,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:52:05,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:52:05,284 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:52:05,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:52:05,285 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:52:05,285 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:52:05,285 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:52:05,285 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> cb53e49317620dbde25b1d7f6fa7078b4950e13e4d138c624b27be1c4ee0f3ad [2024-11-14 04:52:05,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:52:05,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:52:05,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:52:05,752 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:52:05,753 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:52:05,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c Unable to find full path for "g++" [2024-11-14 04:52:08,187 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:52:08,542 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:52:08,543 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2024-11-14 04:52:08,559 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/data/3d7f86271/392dcbf17d234f04b6aef848fc3f20e4/FLAG86794808e [2024-11-14 04:52:08,802 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/data/3d7f86271/392dcbf17d234f04b6aef848fc3f20e4 [2024-11-14 04:52:08,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:52:08,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:52:08,812 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:52:08,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:52:08,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:52:08,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:52:08" (1/1) ... [2024-11-14 04:52:08,824 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50330355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:52:08, skipping insertion in model container [2024-11-14 04:52:08,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:52:08" (1/1) ... [2024-11-14 04:52:08,882 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:52:09,124 WARN L250 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_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c[1605,1618] [2024-11-14 04:52:09,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:52:09,363 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:52:09,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-14 04:52:09,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] [2024-11-14 04:52:09,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [424] [2024-11-14 04:52:09,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [499] [2024-11-14 04:52:09,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [701] [2024-11-14 04:52:09,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [796] [2024-11-14 04:52:09,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [822] [2024-11-14 04:52:09,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [860] [2024-11-14 04:52:09,390 WARN L250 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_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c[1605,1618] [2024-11-14 04:52:09,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:52:09,523 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:52:09,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:52:09 WrapperNode [2024-11-14 04:52:09,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:52:09,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:52:09,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:52:09,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:52:09,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:52:09" (1/1) ... [2024-11-14 04:52:09,556 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:52:09" (1/1) ... [2024-11-14 04:52:09,598 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 190 [2024-11-14 04:52:09,598 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:52:09,599 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:52:09,599 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:52:09,599 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:52:09,609 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:52:09" (1/1) ... [2024-11-14 04:52:09,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:52:09" (1/1) ... [2024-11-14 04:52:09,613 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:52:09" (1/1) ... [2024-11-14 04:52:09,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:52:09" (1/1) ... [2024-11-14 04:52:09,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:52:09" (1/1) ... [2024-11-14 04:52:09,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:52:09" (1/1) ... [2024-11-14 04:52:09,642 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:52:09" (1/1) ... [2024-11-14 04:52:09,647 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:52:09" (1/1) ... [2024-11-14 04:52:09,650 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:52:09,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:52:09,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:52:09,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:52:09,655 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:52:09" (1/1) ... [2024-11-14 04:52:09,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:52:09,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:52:09,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:52:09,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:52:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:52:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-14 04:52:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-14 04:52:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-14 04:52:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-14 04:52:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-14 04:52:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-14 04:52:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-14 04:52:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-14 04:52:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-14 04:52:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-14 04:52:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:52:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-14 04:52:09,762 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-14 04:52:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:52:09,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:52:09,893 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:52:09,898 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:52:10,259 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-14 04:52:10,259 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:52:10,436 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:52:10,436 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 04:52:10,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:52:10 BoogieIcfgContainer [2024-11-14 04:52:10,437 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:52:10,440 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:52:10,440 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:52:10,446 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:52:10,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:52:08" (1/3) ... [2024-11-14 04:52:10,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a891c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:52:10, skipping insertion in model container [2024-11-14 04:52:10,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:52:09" (2/3) ... [2024-11-14 04:52:10,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a891c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:52:10, skipping insertion in model container [2024-11-14 04:52:10,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:52:10" (3/3) ... [2024-11-14 04:52:10,451 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2024-11-14 04:52:10,476 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:52:10,480 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec1_product44.cil.c that has 7 procedures, 50 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-14 04:52:10,562 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:52:10,606 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6b66d150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:52:10,606 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:52:10,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 32 states have (on average 1.40625) internal successors, (45), 38 states have internal predecessors, (45), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 04:52:10,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 04:52:10,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:52:10,629 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:52:10,629 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:52:10,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:52:10,637 INFO L85 PathProgramCache]: Analyzing trace with hash -58623972, now seen corresponding path program 1 times [2024-11-14 04:52:10,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:52:10,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542800184] [2024-11-14 04:52:10,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:52:10,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:52:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:52:10,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:52:10,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:52:10,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542800184] [2024-11-14 04:52:10,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542800184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:52:10,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:52:10,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:52:10,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305101398] [2024-11-14 04:52:10,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:52:10,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:52:10,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:52:10,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:52:10,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:52:10,982 INFO L87 Difference]: Start difference. First operand has 50 states, 32 states have (on average 1.40625) internal successors, (45), 38 states have internal predecessors, (45), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) 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) [2024-11-14 04:52:11,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:52:11,097 INFO L93 Difference]: Finished difference Result 98 states and 131 transitions. [2024-11-14 04:52:11,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:52:11,102 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 [2024-11-14 04:52:11,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:52:11,114 INFO L225 Difference]: With dead ends: 98 [2024-11-14 04:52:11,114 INFO L226 Difference]: Without dead ends: 45 [2024-11-14 04:52:11,120 INFO L431 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 [2024-11-14 04:52:11,126 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:52:11,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:52:11,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-14 04:52:11,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-14 04:52:11,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 34 states have internal predecessors, (37), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 04:52:11,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2024-11-14 04:52:11,195 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 16 [2024-11-14 04:52:11,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:52:11,197 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2024-11-14 04:52:11,197 INFO L472 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) [2024-11-14 04:52:11,197 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2024-11-14 04:52:11,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 04:52:11,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:52:11,199 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:52:11,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:52:11,200 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:52:11,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:52:11,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1216726029, now seen corresponding path program 1 times [2024-11-14 04:52:11,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:52:11,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031926369] [2024-11-14 04:52:11,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:52:11,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:52:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:52:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:52:11,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:52:11,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031926369] [2024-11-14 04:52:11,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031926369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:52:11,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:52:11,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:52:11,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061910434] [2024-11-14 04:52:11,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:52:11,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:52:11,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:52:11,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:52:11,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:52:11,405 INFO L87 Difference]: Start difference. First operand 45 states and 56 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) [2024-11-14 04:52:11,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:52:11,479 INFO L93 Difference]: Finished difference Result 67 states and 83 transitions. [2024-11-14 04:52:11,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:52:11,479 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 [2024-11-14 04:52:11,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:52:11,480 INFO L225 Difference]: With dead ends: 67 [2024-11-14 04:52:11,480 INFO L226 Difference]: Without dead ends: 37 [2024-11-14 04:52:11,481 INFO L431 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 [2024-11-14 04:52:11,482 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 7 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:52:11,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 57 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:52:11,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-14 04:52:11,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-14 04:52:11,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 29 states have internal predecessors, (31), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:52:11,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2024-11-14 04:52:11,491 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 17 [2024-11-14 04:52:11,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:52:11,492 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2024-11-14 04:52:11,492 INFO L472 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) [2024-11-14 04:52:11,492 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2024-11-14 04:52:11,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 04:52:11,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:52:11,493 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:52:11,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:52:11,494 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:52:11,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:52:11,494 INFO L85 PathProgramCache]: Analyzing trace with hash -70933052, now seen corresponding path program 1 times [2024-11-14 04:52:11,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:52:11,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499366922] [2024-11-14 04:52:11,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:52:11,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:52:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:52:12,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:52:12,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:52:12,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499366922] [2024-11-14 04:52:12,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499366922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:52:12,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:52:12,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 04:52:12,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817847778] [2024-11-14 04:52:12,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:52:12,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:52:12,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:52:12,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:52:12,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:52:12,022 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2024-11-14 04:52:12,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:52:12,260 INFO L93 Difference]: Finished difference Result 112 states and 138 transitions. [2024-11-14 04:52:12,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:52:12,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 [2024-11-14 04:52:12,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:52:12,263 INFO L225 Difference]: With dead ends: 112 [2024-11-14 04:52:12,263 INFO L226 Difference]: Without dead ends: 77 [2024-11-14 04:52:12,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:52:12,268 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 45 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:52:12,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 125 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:52:12,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-14 04:52:12,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 65. [2024-11-14 04:52:12,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.255813953488372) internal successors, (54), 49 states have internal predecessors, (54), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-14 04:52:12,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 78 transitions. [2024-11-14 04:52:12,302 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 78 transitions. Word has length 19 [2024-11-14 04:52:12,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:52:12,306 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 78 transitions. [2024-11-14 04:52:12,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2024-11-14 04:52:12,306 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 78 transitions. [2024-11-14 04:52:12,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 04:52:12,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:52:12,307 INFO L215 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] [2024-11-14 04:52:12,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:52:12,308 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:52:12,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:52:12,308 INFO L85 PathProgramCache]: Analyzing trace with hash -962258089, now seen corresponding path program 1 times [2024-11-14 04:52:12,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:52:12,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640386420] [2024-11-14 04:52:12,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:52:12,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:52:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:52:12,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:52:12,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:52:12,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640386420] [2024-11-14 04:52:12,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640386420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:52:12,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:52:12,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:52:12,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112721973] [2024-11-14 04:52:12,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:52:12,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:52:12,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:52:12,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:52:12,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:52:12,692 INFO L87 Difference]: Start difference. First operand 65 states and 78 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 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) [2024-11-14 04:52:12,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:52:12,921 INFO L93 Difference]: Finished difference Result 200 states and 241 transitions. [2024-11-14 04:52:12,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:52:12,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 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 26 [2024-11-14 04:52:12,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:52:12,926 INFO L225 Difference]: With dead ends: 200 [2024-11-14 04:52:12,926 INFO L226 Difference]: Without dead ends: 137 [2024-11-14 04:52:12,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:52:12,928 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 57 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:52:12,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 126 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:52:12,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-14 04:52:12,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 111. [2024-11-14 04:52:12,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 75 states have (on average 1.24) internal successors, (93), 83 states have internal predecessors, (93), 17 states have call successors, (17), 16 states have call predecessors, (17), 18 states have return successors, (21), 17 states have call predecessors, (21), 17 states have call successors, (21) [2024-11-14 04:52:12,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 131 transitions. [2024-11-14 04:52:12,962 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 131 transitions. Word has length 26 [2024-11-14 04:52:12,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:52:12,963 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 131 transitions. [2024-11-14 04:52:12,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 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) [2024-11-14 04:52:12,963 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 131 transitions. [2024-11-14 04:52:12,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 04:52:12,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:52:12,964 INFO L215 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] [2024-11-14 04:52:12,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 04:52:12,965 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:52:12,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:52:12,968 INFO L85 PathProgramCache]: Analyzing trace with hash -202670362, now seen corresponding path program 1 times [2024-11-14 04:52:12,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:52:12,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323939610] [2024-11-14 04:52:12,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:52:12,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:52:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:52:13,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 04:52:13,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:52:13,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323939610] [2024-11-14 04:52:13,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323939610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:52:13,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:52:13,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 04:52:13,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894317975] [2024-11-14 04:52:13,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:52:13,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:52:13,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:52:13,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:52:13,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:52:13,215 INFO L87 Difference]: Start difference. First operand 111 states and 131 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:52:13,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:52:13,464 INFO L93 Difference]: Finished difference Result 319 states and 388 transitions. [2024-11-14 04:52:13,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:52:13,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-11-14 04:52:13,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:52:13,468 INFO L225 Difference]: With dead ends: 319 [2024-11-14 04:52:13,472 INFO L226 Difference]: Without dead ends: 210 [2024-11-14 04:52:13,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 04:52:13,474 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 20 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:52:13,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 139 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:52:13,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-14 04:52:13,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 204. [2024-11-14 04:52:13,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 139 states have (on average 1.20863309352518) internal successors, (168), 151 states have internal predecessors, (168), 31 states have call successors, (31), 29 states have call predecessors, (31), 33 states have return successors, (39), 31 states have call predecessors, (39), 31 states have call successors, (39) [2024-11-14 04:52:13,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 238 transitions. [2024-11-14 04:52:13,549 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 238 transitions. Word has length 29 [2024-11-14 04:52:13,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:52:13,549 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 238 transitions. [2024-11-14 04:52:13,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:52:13,549 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 238 transitions. [2024-11-14 04:52:13,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-14 04:52:13,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:52:13,558 INFO L215 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] [2024-11-14 04:52:13,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 04:52:13,559 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:52:13,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:52:13,559 INFO L85 PathProgramCache]: Analyzing trace with hash 421245889, now seen corresponding path program 1 times [2024-11-14 04:52:13,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:52:13,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963836034] [2024-11-14 04:52:13,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:52:13,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:52:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:52:14,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:52:14,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:52:14,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963836034] [2024-11-14 04:52:14,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963836034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:52:14,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:52:14,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 04:52:14,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523402322] [2024-11-14 04:52:14,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:52:14,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 04:52:14,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:52:14,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 04:52:14,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-14 04:52:14,016 INFO L87 Difference]: Start difference. First operand 204 states and 238 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 04:52:14,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:52:14,654 INFO L93 Difference]: Finished difference Result 350 states and 428 transitions. [2024-11-14 04:52:14,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 04:52:14,655 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 32 [2024-11-14 04:52:14,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:52:14,658 INFO L225 Difference]: With dead ends: 350 [2024-11-14 04:52:14,659 INFO L226 Difference]: Without dead ends: 277 [2024-11-14 04:52:14,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:52:14,661 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 115 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:52:14,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 141 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:52:14,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-11-14 04:52:14,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 255. [2024-11-14 04:52:14,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.2138728323699421) internal successors, (210), 189 states have internal predecessors, (210), 39 states have call successors, (39), 37 states have call predecessors, (39), 42 states have return successors, (55), 39 states have call predecessors, (55), 39 states have call successors, (55) [2024-11-14 04:52:14,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 304 transitions. [2024-11-14 04:52:14,746 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 304 transitions. Word has length 32 [2024-11-14 04:52:14,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:52:14,746 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 304 transitions. [2024-11-14 04:52:14,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 04:52:14,747 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 304 transitions. [2024-11-14 04:52:14,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-14 04:52:14,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:52:14,752 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-14 04:52:14,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 04:52:14,752 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:52:14,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:52:14,757 INFO L85 PathProgramCache]: Analyzing trace with hash -947620751, now seen corresponding path program 1 times [2024-11-14 04:52:14,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:52:14,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80091780] [2024-11-14 04:52:14,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:52:14,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:52:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:52:15,380 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 04:52:15,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:52:15,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80091780] [2024-11-14 04:52:15,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80091780] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:52:15,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810121663] [2024-11-14 04:52:15,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:52:15,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:52:15,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:52:15,384 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:52:15,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:52:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:52:15,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 04:52:15,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:52:16,074 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:52:16,074 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:52:16,267 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:52:16,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810121663] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:52:16,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1513995342] [2024-11-14 04:52:16,294 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-14 04:52:16,294 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:52:16,298 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:52:16,305 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:52:16,306 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:52:19,257 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 27 for LOIs [2024-11-14 04:52:19,267 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 62 for LOIs [2024-11-14 04:52:19,737 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 54 for LOIs [2024-11-14 04:52:19,764 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 26 for LOIs [2024-11-14 04:52:19,770 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:52:23,270 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3207#(and (<= 1 |#StackHeapBarrier|) (<= ~methaneLevelCritical~0 1) (not (= ~pumpRunning~0 0)) (<= ~pumpRunning~0 2147483647) (= ~head~0.offset 0) (not (= ~methaneLevelCritical~0 0)) (<= 0 ~methaneLevelCritical~0) (= ~head~0.base 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= ~cleanupTimeShifts~0 4))' at error location [2024-11-14 04:52:23,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:52:23,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:52:23,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 15 [2024-11-14 04:52:23,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470744331] [2024-11-14 04:52:23,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:52:23,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 04:52:23,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:52:23,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 04:52:23,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1183, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 04:52:23,275 INFO L87 Difference]: Start difference. First operand 255 states and 304 transitions. Second operand has 15 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 6 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-14 04:52:23,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:52:23,945 INFO L93 Difference]: Finished difference Result 565 states and 699 transitions. [2024-11-14 04:52:23,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 04:52:23,946 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 6 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 49 [2024-11-14 04:52:23,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:52:23,954 INFO L225 Difference]: With dead ends: 565 [2024-11-14 04:52:23,954 INFO L226 Difference]: Without dead ends: 379 [2024-11-14 04:52:23,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 119 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=353, Invalid=1809, Unknown=0, NotChecked=0, Total=2162 [2024-11-14 04:52:23,961 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 273 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:52:23,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 170 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:52:23,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-14 04:52:24,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 339. [2024-11-14 04:52:24,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 230 states have (on average 1.2130434782608697) internal successors, (279), 253 states have internal predecessors, (279), 51 states have call successors, (51), 49 states have call predecessors, (51), 57 states have return successors, (83), 51 states have call predecessors, (83), 51 states have call successors, (83) [2024-11-14 04:52:24,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 413 transitions. [2024-11-14 04:52:24,042 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 413 transitions. Word has length 49 [2024-11-14 04:52:24,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:52:24,044 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 413 transitions. [2024-11-14 04:52:24,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 6 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-14 04:52:24,044 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 413 transitions. [2024-11-14 04:52:24,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-14 04:52:24,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:52:24,054 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-14 04:52:24,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:52:24,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 04:52:24,255 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:52:24,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:52:24,255 INFO L85 PathProgramCache]: Analyzing trace with hash 749280390, now seen corresponding path program 1 times [2024-11-14 04:52:24,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:52:24,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57762265] [2024-11-14 04:52:24,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:52:24,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:52:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:52:24,297 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:52:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:52:24,373 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:52:24,373 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:52:24,374 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:52:24,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 04:52:24,380 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:52:24,470 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:52:24,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:52:24 BoogieIcfgContainer [2024-11-14 04:52:24,479 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:52:24,479 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:52:24,481 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:52:24,481 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:52:24,482 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:52:10" (3/4) ... [2024-11-14 04:52:24,485 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-14 04:52:24,607 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 04:52:24,607 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:52:24,612 INFO L158 Benchmark]: Toolchain (without parser) took 15803.28ms. Allocated memory was 117.4MB in the beginning and 318.8MB in the end (delta: 201.3MB). Free memory was 91.7MB in the beginning and 160.4MB in the end (delta: -68.7MB). Peak memory consumption was 134.1MB. Max. memory is 16.1GB. [2024-11-14 04:52:24,612 INFO L158 Benchmark]: CDTParser took 1.92ms. Allocated memory is still 117.4MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:52:24,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 712.71ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 73.3MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:52:24,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.13ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 71.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:52:24,613 INFO L158 Benchmark]: Boogie Preprocessor took 50.89ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 69.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:52:24,613 INFO L158 Benchmark]: RCFGBuilder took 783.46ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 43.7MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 04:52:24,617 INFO L158 Benchmark]: TraceAbstraction took 14038.86ms. Allocated memory was 117.4MB in the beginning and 318.8MB in the end (delta: 201.3MB). Free memory was 43.0MB in the beginning and 165.3MB in the end (delta: -122.4MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. [2024-11-14 04:52:24,617 INFO L158 Benchmark]: Witness Printer took 131.17ms. Allocated memory is still 318.8MB. Free memory was 165.3MB in the beginning and 160.4MB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:52:24,620 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.92ms. Allocated memory is still 117.4MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 712.71ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 73.3MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.13ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 71.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.89ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 69.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 783.46ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 43.7MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 14038.86ms. Allocated memory was 117.4MB in the beginning and 318.8MB in the end (delta: 201.3MB). Free memory was 43.0MB in the beginning and 165.3MB in the end (delta: -122.4MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. * Witness Printer took 131.17ms. Allocated memory is still 318.8MB. Free memory was 165.3MB in the beginning and 160.4MB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [424] - GenericResultAtLocation [Line: 499]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [499] - GenericResultAtLocation [Line: 701]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [701] - GenericResultAtLocation [Line: 796]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [796] - GenericResultAtLocation [Line: 822]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [822] - GenericResultAtLocation [Line: 860]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [860] * 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 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L508] int pumpRunning = 0; [L509] int systemActive = 1; [L703] int waterLevel = 1; [L704] int methaneLevelCritical = 0; [L861] int cleanupTimeShifts = 4; [L934] int retValue_acc ; [L935] int tmp ; [L939] FCALL select_helpers() [L940] FCALL select_features() [L941] CALL, EXPR valid_product() [L852] int retValue_acc ; [L855] retValue_acc = 1 [L856] return (retValue_acc); [L941] RET, EXPR valid_product() [L941] tmp = valid_product() [L943] COND TRUE \read(tmp) [L945] FCALL setup() [L946] CALL runTest() [L928] CALL test() [L432] int splverifierCounter ; [L433] int tmp ; [L434] int tmp___0 ; [L435] int tmp___1 ; [L436] int tmp___2 ; [L439] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L441] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L443] COND TRUE splverifierCounter < 4 [L449] tmp = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L453] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L721] COND TRUE waterLevel < 2 [L722] waterLevel = waterLevel + 1 [L453] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L459] tmp___0 = __VERIFIER_nondet_int() [L461] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L469] tmp___2 = __VERIFIER_nondet_int() [L471] COND TRUE \read(tmp___2) [L473] CALL startSystem() [L697] systemActive = 1 [L473] RET startSystem() [L488] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L516] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L523] COND TRUE \read(systemActive) [L525] CALL processEnvironment() [L545] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L548] COND TRUE ! pumpRunning [L550] CALL, EXPR isHighWaterLevel() [L660] int retValue_acc ; [L661] int tmp ; [L662] int tmp___0 ; [L666] CALL, EXPR isHighWaterSensorDry() [L783] int retValue_acc ; [L786] COND FALSE !(waterLevel < 2) [L790] retValue_acc = 0 [L791] return (retValue_acc); [L666] RET, EXPR isHighWaterSensorDry() [L666] tmp = isHighWaterSensorDry() [L668] COND FALSE !(\read(tmp)) [L671] tmp___0 = 1 [L673] retValue_acc = tmp___0 [L674] return (retValue_acc); [L550] RET, EXPR isHighWaterLevel() [L550] tmp = isHighWaterLevel() [L552] COND TRUE \read(tmp) [L554] CALL activatePump() [L579] int tmp ; [L583] CALL, EXPR isMethaneAlarm() [L604] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L608] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L742] int retValue_acc ; [L745] retValue_acc = methaneLevelCritical [L746] return (retValue_acc); [L608] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L608] retValue_acc = isMethaneLevelCritical() [L610] return (retValue_acc); [L583] RET, EXPR isMethaneAlarm() [L583] tmp = isMethaneAlarm() [L585] COND FALSE !(\read(tmp)) [L589] CALL activatePump__wrappee__highWaterSensor() [L573] pumpRunning = 1 [L589] RET activatePump__wrappee__highWaterSensor() [L554] RET activatePump() [L525] RET processEnvironment() [L531] CALL __utac_acc__Specification1_spec__1() [L798] int tmp ; [L799] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L803] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L742] int retValue_acc ; [L745] retValue_acc = methaneLevelCritical [L746] return (retValue_acc); [L803] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L531] RET __utac_acc__Specification1_spec__1() [L488] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp___1=49, waterLevel=2] [L441] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp___1=49, waterLevel=2] [L443] COND TRUE splverifierCounter < 4 [L449] tmp = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp___1=49, waterLevel=2] [L459] tmp___0 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp___1=49, waterLevel=2] [L463] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L733] COND FALSE !(\read(methaneLevelCritical)) [L736] methaneLevelCritical = 1 [L463] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp___1=49, waterLevel=2] [L469] tmp___2 = __VERIFIER_nondet_int() [L471] COND FALSE !(\read(tmp___2)) [L477] tmp___1 = __VERIFIER_nondet_int() [L479] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp___1=49, waterLevel=2] [L488] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L516] COND TRUE \read(pumpRunning) [L518] CALL lowerWaterLevel() [L709] COND TRUE waterLevel > 0 [L710] waterLevel = waterLevel - 1 [L518] RET lowerWaterLevel() [L523] COND TRUE \read(systemActive) [L525] CALL processEnvironment() [L545] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L548] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L563] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L525] RET processEnvironment() [L531] CALL __utac_acc__Specification1_spec__1() [L798] int tmp ; [L799] int tmp___0 ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L803] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L742] int retValue_acc ; [L745] retValue_acc = methaneLevelCritical [L746] return (retValue_acc); [L803] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L803] tmp = isMethaneLevelCritical() [L805] COND TRUE \read(tmp) [L807] CALL, EXPR isPumpRunning() [L615] int retValue_acc ; [L618] retValue_acc = pumpRunning [L619] return (retValue_acc); [L807] RET, EXPR isPumpRunning() [L807] tmp___0 = isPumpRunning() [L809] COND TRUE \read(tmp___0) [L811] CALL __automaton_fail() [L54] reach_error() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.8s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 525 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 517 mSDsluCounter, 805 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 557 mSDsCounter, 198 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 589 IncrementalHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 198 mSolverCounterUnsat, 248 mSDtfsCounter, 589 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 218 GetRequests, 136 SyntacticMatches, 4 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=339occurred in iteration=7, InterpolantAutomatonStates: 46, 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, 7 MinimizatonAttempts, 106 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 277 ConstructedInterpolants, 0 QuantifiedInterpolants, 859 SizeOfPredicates, 6 NumberOfNonLiveVariables, 206 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 47/63 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-14 04:52:24,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ae97bc-ab4d-4a8f-a94e-1dac19dc45b2/bin/utaipan-verify-sOmjnqqW8E/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE