./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product05.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product05.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire --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 89d79330893ddcb40b29f516de4dd8a28301af3358fb85b9aef9deff219c3c1d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:31:27,649 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:31:27,731 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:31:27,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:31:27,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:31:27,763 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:31:27,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:31:27,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:31:27,766 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:31:27,767 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:31:27,767 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:31:27,768 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:31:27,769 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:31:27,769 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:31:27,770 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:31:27,771 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:31:27,771 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:31:27,772 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:31:27,773 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:31:27,774 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:31:27,774 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:31:27,775 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:31:27,776 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:31:27,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:31:27,778 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:31:27,778 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:31:27,779 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:31:27,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:31:27,780 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:31:27,781 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:31:27,781 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:31:27,782 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:31:27,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:31:27,783 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:31:27,784 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:31:27,784 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:31:27,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:31:27,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:31:27,786 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:31:27,786 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:31:27,787 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:31:27,787 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:31:27,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:31:27,788 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:31:27,789 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:31:27,789 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:31:27,790 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:31:27,790 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89d79330893ddcb40b29f516de4dd8a28301af3358fb85b9aef9deff219c3c1d [2023-11-23 20:31:28,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:31:28,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:31:28,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:31:28,192 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:31:28,192 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:31:28,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/minepump_spec1_product05.cil.c [2023-11-23 20:31:31,738 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:31:32,022 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:31:32,023 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/sv-benchmarks/c/product-lines/minepump_spec1_product05.cil.c [2023-11-23 20:31:32,039 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/data/a28ea12d8/b64a2d41dc8e4d7f811fc5655891dd63/FLAG72b9ada46 [2023-11-23 20:31:32,076 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/data/a28ea12d8/b64a2d41dc8e4d7f811fc5655891dd63 [2023-11-23 20:31:32,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:31:32,082 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:31:32,083 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:31:32,084 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:31:32,102 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:31:32,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:31:32" (1/1) ... [2023-11-23 20:31:32,110 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61553f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:32, skipping insertion in model container [2023-11-23 20:31:32,111 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:31:32" (1/1) ... [2023-11-23 20:31:32,177 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:31:32,371 WARN L240 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_b78addd3-a89e-4220-a3c8-04f49243b629/sv-benchmarks/c/product-lines/minepump_spec1_product05.cil.c[4546,4559] [2023-11-23 20:31:32,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:31:32,471 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:31:32,483 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-11-23 20:31:32,484 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [135] [2023-11-23 20:31:32,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [274] [2023-11-23 20:31:32,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] [2023-11-23 20:31:32,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [349] [2023-11-23 20:31:32,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [715] [2023-11-23 20:31:32,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [741] [2023-11-23 20:31:32,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [840] [2023-11-23 20:31:32,501 WARN L240 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_b78addd3-a89e-4220-a3c8-04f49243b629/sv-benchmarks/c/product-lines/minepump_spec1_product05.cil.c[4546,4559] [2023-11-23 20:31:32,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:31:32,577 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:31:32,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:32 WrapperNode [2023-11-23 20:31:32,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:31:32,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:31:32,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:31:32,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:31:32,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:32" (1/1) ... [2023-11-23 20:31:32,604 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:32" (1/1) ... [2023-11-23 20:31:32,631 INFO L138 Inliner]: procedures = 50, calls = 92, calls flagged for inlining = 18, calls inlined = 15, statements flattened = 148 [2023-11-23 20:31:32,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:31:32,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:31:32,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:31:32,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:31:32,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:32" (1/1) ... [2023-11-23 20:31:32,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:32" (1/1) ... [2023-11-23 20:31:32,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:32" (1/1) ... [2023-11-23 20:31:32,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:32" (1/1) ... [2023-11-23 20:31:32,652 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:32" (1/1) ... [2023-11-23 20:31:32,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:32" (1/1) ... [2023-11-23 20:31:32,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:32" (1/1) ... [2023-11-23 20:31:32,661 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:32" (1/1) ... [2023-11-23 20:31:32,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:31:32,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:31:32,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:31:32,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:31:32,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:32" (1/1) ... [2023-11-23 20:31:32,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:31:32,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:31:32,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:31:32,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:31:32,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:31:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-23 20:31:32,745 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-23 20:31:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-23 20:31:32,745 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-23 20:31:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-23 20:31:32,746 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-23 20:31:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-23 20:31:32,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-23 20:31:32,747 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-23 20:31:32,747 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-23 20:31:32,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:31:32,747 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-23 20:31:32,747 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-23 20:31:32,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:31:32,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:31:32,844 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:31:32,846 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:31:33,153 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:31:33,291 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:31:33,291 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:31:33,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:31:33 BoogieIcfgContainer [2023-11-23 20:31:33,293 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:31:33,296 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:31:33,296 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:31:33,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:31:33,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:31:32" (1/3) ... [2023-11-23 20:31:33,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255a9730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:31:33, skipping insertion in model container [2023-11-23 20:31:33,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:32" (2/3) ... [2023-11-23 20:31:33,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255a9730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:31:33, skipping insertion in model container [2023-11-23 20:31:33,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:31:33" (3/3) ... [2023-11-23 20:31:33,304 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product05.cil.c [2023-11-23 20:31:33,325 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:31:33,325 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:31:33,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:31:33,381 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@567917d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:31:33,381 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:31:33,386 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) [2023-11-23 20:31:33,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 20:31:33,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:31:33,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:31:33,398 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:31:33,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:31:33,404 INFO L85 PathProgramCache]: Analyzing trace with hash 366313129, now seen corresponding path program 1 times [2023-11-23 20:31:33,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:31:33,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693681873] [2023-11-23 20:31:33,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:31:33,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:31:33,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:31:33,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:31:33,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:31:33,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693681873] [2023-11-23 20:31:33,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693681873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:31:33,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:31:33,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:31:33,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146026937] [2023-11-23 20:31:33,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:31:33,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:31:33,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:31:33,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:31:33,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:31:33,810 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) [2023-11-23 20:31:33,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:31:33,949 INFO L93 Difference]: Finished difference Result 98 states and 131 transitions. [2023-11-23 20:31:33,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:31:33,952 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 [2023-11-23 20:31:33,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:31:33,966 INFO L225 Difference]: With dead ends: 98 [2023-11-23 20:31:33,966 INFO L226 Difference]: Without dead ends: 45 [2023-11-23 20:31:33,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:31:33,980 INFO L413 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 [2023-11-23 20:31:33,983 INFO L414 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] [2023-11-23 20:31:34,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-23 20:31:34,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-23 20:31:34,047 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) [2023-11-23 20:31:34,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2023-11-23 20:31:34,055 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 16 [2023-11-23 20:31:34,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:31:34,058 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2023-11-23 20:31:34,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 20:31:34,059 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2023-11-23 20:31:34,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 20:31:34,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:31:34,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:31:34,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:31:34,065 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:31:34,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:31:34,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1417452699, now seen corresponding path program 1 times [2023-11-23 20:31:34,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:31:34,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643591919] [2023-11-23 20:31:34,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:31:34,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:31:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:31:34,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:31:34,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:31:34,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643591919] [2023-11-23 20:31:34,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643591919] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:31:34,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:31:34,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:31:34,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853994551] [2023-11-23 20:31:34,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:31:34,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:31:34,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:31:34,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:31:34,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:31:34,234 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) [2023-11-23 20:31:34,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:31:34,309 INFO L93 Difference]: Finished difference Result 67 states and 83 transitions. [2023-11-23 20:31:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:31:34,310 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 [2023-11-23 20:31:34,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:31:34,314 INFO L225 Difference]: With dead ends: 67 [2023-11-23 20:31:34,314 INFO L226 Difference]: Without dead ends: 37 [2023-11-23 20:31:34,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:31:34,324 INFO L413 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, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:31:34,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 57 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:31:34,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-23 20:31:34,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-23 20:31:34,345 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) [2023-11-23 20:31:34,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2023-11-23 20:31:34,347 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 17 [2023-11-23 20:31:34,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:31:34,348 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2023-11-23 20:31:34,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 20:31:34,348 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2023-11-23 20:31:34,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 20:31:34,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:31:34,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:31:34,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:31:34,354 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:31:34,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:31:34,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1838082565, now seen corresponding path program 1 times [2023-11-23 20:31:34,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:31:34,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199517077] [2023-11-23 20:31:34,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:31:34,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:31:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:31:34,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:31:34,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:31:34,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199517077] [2023-11-23 20:31:34,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199517077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:31:34,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:31:34,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:31:34,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760659488] [2023-11-23 20:31:34,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:31:34,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:31:34,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:31:34,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:31:34,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:31:34,483 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 20:31:34,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:31:34,526 INFO L93 Difference]: Finished difference Result 72 states and 89 transitions. [2023-11-23 20:31:34,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:31:34,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-11-23 20:31:34,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:31:34,528 INFO L225 Difference]: With dead ends: 72 [2023-11-23 20:31:34,528 INFO L226 Difference]: Without dead ends: 37 [2023-11-23 20:31:34,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:31:34,531 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:31:34,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 31 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:31:34,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-23 20:31:34,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-23 20:31:34,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.25) internal successors, (30), 29 states have internal predecessors, (30), 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) [2023-11-23 20:31:34,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2023-11-23 20:31:34,543 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 19 [2023-11-23 20:31:34,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:31:34,543 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2023-11-23 20:31:34,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 20:31:34,544 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2023-11-23 20:31:34,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 20:31:34,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:31:34,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:31:34,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:31:34,546 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:31:34,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:31:34,547 INFO L85 PathProgramCache]: Analyzing trace with hash 803434422, now seen corresponding path program 1 times [2023-11-23 20:31:34,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:31:34,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799596456] [2023-11-23 20:31:34,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:31:34,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:31:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:31:34,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:31:34,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:31:34,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799596456] [2023-11-23 20:31:34,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799596456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:31:34,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:31:34,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:31:34,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513614211] [2023-11-23 20:31:34,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:31:34,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:31:34,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:31:34,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:31:34,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:31:34,725 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 20:31:34,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:31:34,828 INFO L93 Difference]: Finished difference Result 67 states and 80 transitions. [2023-11-23 20:31:34,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:31:34,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-11-23 20:31:34,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:31:34,830 INFO L225 Difference]: With dead ends: 67 [2023-11-23 20:31:34,830 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 20:31:34,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:31:34,841 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 18 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:31:34,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 43 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:31:34,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 20:31:34,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 20:31:34,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:31:34,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 20:31:34,844 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2023-11-23 20:31:34,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:31:34,844 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 20:31:34,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 20:31:34,845 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 20:31:34,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:31:34,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:31:34,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 20:31:34,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 20:31:35,030 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 169 175) no Hoare annotation was computed. [2023-11-23 20:31:35,031 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 169 175) the Hoare annotation is: true [2023-11-23 20:31:35,031 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 82 93) the Hoare annotation is: true [2023-11-23 20:31:35,031 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2023-11-23 20:31:35,032 INFO L899 garLoopResultBuilder]: For program point L768(lines 743 772) no Hoare annotation was computed. [2023-11-23 20:31:35,032 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 743 772) no Hoare annotation was computed. [2023-11-23 20:31:35,032 INFO L899 garLoopResultBuilder]: For program point L764(line 764) no Hoare annotation was computed. [2023-11-23 20:31:35,032 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 761) no Hoare annotation was computed. [2023-11-23 20:31:35,032 INFO L902 garLoopResultBuilder]: At program point L757-1(lines 757 761) the Hoare annotation is: true [2023-11-23 20:31:35,033 INFO L902 garLoopResultBuilder]: At program point L753-2(lines 753 767) the Hoare annotation is: true [2023-11-23 20:31:35,033 INFO L902 garLoopResultBuilder]: At program point L749(line 749) the Hoare annotation is: true [2023-11-23 20:31:35,033 INFO L899 garLoopResultBuilder]: For program point L749-1(line 749) no Hoare annotation was computed. [2023-11-23 20:31:35,033 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 743 772) the Hoare annotation is: true [2023-11-23 20:31:35,033 INFO L899 garLoopResultBuilder]: For program point L279(line 279) no Hoare annotation was computed. [2023-11-23 20:31:35,034 INFO L899 garLoopResultBuilder]: For program point L156-1(lines 156 162) no Hoare annotation was computed. [2023-11-23 20:31:35,035 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 193) no Hoare annotation was computed. [2023-11-23 20:31:35,036 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 198) no Hoare annotation was computed. [2023-11-23 20:31:35,036 INFO L895 garLoopResultBuilder]: At program point L722(line 722) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-11-23 20:31:35,036 INFO L899 garLoopResultBuilder]: For program point L722-1(line 722) no Hoare annotation was computed. [2023-11-23 20:31:35,036 INFO L895 garLoopResultBuilder]: At program point L223(line 223) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-11-23 20:31:35,037 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2023-11-23 20:31:35,037 INFO L899 garLoopResultBuilder]: For program point L149-1(lines 148 167) no Hoare annotation was computed. [2023-11-23 20:31:35,038 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 145 168) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-11-23 20:31:35,039 INFO L895 garLoopResultBuilder]: At program point L191(line 191) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-11-23 20:31:35,039 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 734) no Hoare annotation was computed. [2023-11-23 20:31:35,039 INFO L899 garLoopResultBuilder]: For program point L724(lines 724 737) no Hoare annotation was computed. [2023-11-23 20:31:35,039 INFO L899 garLoopResultBuilder]: For program point L724-1(lines 716 740) no Hoare annotation was computed. [2023-11-23 20:31:35,040 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 145 168) no Hoare annotation was computed. [2023-11-23 20:31:35,040 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 279) no Hoare annotation was computed. [2023-11-23 20:31:35,040 INFO L895 garLoopResultBuilder]: At program point L196(line 196) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-11-23 20:31:35,040 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 177 201) no Hoare annotation was computed. [2023-11-23 20:31:35,041 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 94 102) the Hoare annotation is: true [2023-11-23 20:31:35,041 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 94 102) no Hoare annotation was computed. [2023-11-23 20:31:35,041 INFO L895 garLoopResultBuilder]: At program point L341(lines 294 342) the Hoare annotation is: false [2023-11-23 20:31:35,041 INFO L899 garLoopResultBuilder]: For program point L296(lines 295 340) no Hoare annotation was computed. [2023-11-23 20:31:35,042 INFO L895 garLoopResultBuilder]: At program point L317(line 317) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-23 20:31:35,042 INFO L895 garLoopResultBuilder]: At program point L338(lines 295 340) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-23 20:31:35,042 INFO L899 garLoopResultBuilder]: For program point L305(lines 305 311) no Hoare annotation was computed. [2023-11-23 20:31:35,042 INFO L899 garLoopResultBuilder]: For program point L305-1(lines 305 311) no Hoare annotation was computed. [2023-11-23 20:31:35,042 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 20:31:35,043 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 20:31:35,043 INFO L895 garLoopResultBuilder]: At program point L331-2(lines 325 336) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-23 20:31:35,043 INFO L899 garLoopResultBuilder]: For program point L827(lines 827 834) no Hoare annotation was computed. [2023-11-23 20:31:35,043 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 321) no Hoare annotation was computed. [2023-11-23 20:31:35,043 INFO L899 garLoopResultBuilder]: For program point L315-1(lines 315 321) no Hoare annotation was computed. [2023-11-23 20:31:35,044 INFO L899 garLoopResultBuilder]: For program point L827-2(lines 827 834) no Hoare annotation was computed. [2023-11-23 20:31:35,044 INFO L899 garLoopResultBuilder]: For program point L344(lines 285 348) no Hoare annotation was computed. [2023-11-23 20:31:35,045 INFO L895 garLoopResultBuilder]: At program point L307(line 307) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-23 20:31:35,049 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2023-11-23 20:31:35,050 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 70 81) the Hoare annotation is: true [2023-11-23 20:31:35,054 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-23 20:31:35,057 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:31:35,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:31:35 BoogieIcfgContainer [2023-11-23 20:31:35,076 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:31:35,078 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:31:35,079 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:31:35,079 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:31:35,080 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:31:33" (3/4) ... [2023-11-23 20:31:35,082 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:31:35,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-23 20:31:35,087 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-23 20:31:35,087 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-23 20:31:35,087 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-23 20:31:35,087 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-23 20:31:35,088 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-23 20:31:35,097 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2023-11-23 20:31:35,098 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-23 20:31:35,099 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 20:31:35,099 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:31:35,100 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:31:35,137 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) || !((1 == systemActive))) [2023-11-23 20:31:35,170 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) || !((1 == systemActive))) [2023-11-23 20:31:35,235 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 20:31:35,236 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 20:31:35,236 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:31:35,237 INFO L158 Benchmark]: Toolchain (without parser) took 3155.49ms. Allocated memory was 144.7MB in the beginning and 192.9MB in the end (delta: 48.2MB). Free memory was 97.0MB in the beginning and 144.0MB in the end (delta: -47.0MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2023-11-23 20:31:35,237 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 144.7MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:31:35,238 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.40ms. Allocated memory is still 144.7MB. Free memory was 97.0MB in the beginning and 78.5MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 20:31:35,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.03ms. Allocated memory is still 144.7MB. Free memory was 78.5MB in the beginning and 76.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:31:35,239 INFO L158 Benchmark]: Boogie Preprocessor took 31.72ms. Allocated memory is still 144.7MB. Free memory was 76.4MB in the beginning and 74.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:31:35,239 INFO L158 Benchmark]: RCFGBuilder took 628.33ms. Allocated memory was 144.7MB in the beginning and 192.9MB in the end (delta: 48.2MB). Free memory was 74.9MB in the beginning and 149.2MB in the end (delta: -74.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:31:35,240 INFO L158 Benchmark]: TraceAbstraction took 1780.94ms. Allocated memory is still 192.9MB. Free memory was 149.2MB in the beginning and 150.3MB in the end (delta: -1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:31:35,240 INFO L158 Benchmark]: Witness Printer took 157.73ms. Allocated memory is still 192.9MB. Free memory was 150.3MB in the beginning and 144.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:31:35,245 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 144.7MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 495.40ms. Allocated memory is still 144.7MB. Free memory was 97.0MB in the beginning and 78.5MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.03ms. Allocated memory is still 144.7MB. Free memory was 78.5MB in the beginning and 76.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.72ms. Allocated memory is still 144.7MB. Free memory was 76.4MB in the beginning and 74.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 628.33ms. Allocated memory was 144.7MB in the beginning and 192.9MB in the end (delta: 48.2MB). Free memory was 74.9MB in the beginning and 149.2MB in the end (delta: -74.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1780.94ms. Allocated memory is still 192.9MB. Free memory was 149.2MB in the beginning and 150.3MB in the end (delta: -1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 157.73ms. Allocated memory is still 192.9MB. Free memory was 150.3MB in the beginning and 144.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 135]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [135] - GenericResultAtLocation [Line: 274]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [274] - GenericResultAtLocation [Line: 283]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] - GenericResultAtLocation [Line: 349]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [349] - GenericResultAtLocation [Line: 715]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [715] - GenericResultAtLocation [Line: 741]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [741] - GenericResultAtLocation [Line: 840]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [840] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 279]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 178 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 133 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 79 PreInvPairs, 84 NumberOfFragments, 103 HoareAnnotationTreeSize, 79 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 72 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: (((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) - InvariantResult [Line: 294]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 753]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: ((!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) || !((1 == systemActive))) RESULT: Ultimate proved your program to be correct! [2023-11-23 20:31:35,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b78addd3-a89e-4220-a3c8-04f49243b629/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE