./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje --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 9a99cd47cb89075c534de557ec34a8319cd4d0f3080d4e7f4d1690c11fbbfbd6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:12:31,635 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:12:31,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 07:12:31,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:12:31,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:12:31,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:12:31,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:12:31,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:12:31,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:12:31,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:12:31,832 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:12:31,833 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:12:31,834 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:12:31,837 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:12:31,838 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:12:31,838 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:12:31,839 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:12:31,839 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:12:31,840 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:12:31,841 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:12:31,845 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:12:31,846 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:12:31,847 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:12:31,847 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:12:31,848 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:12:31,848 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:12:31,848 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:12:31,849 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:12:31,850 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:12:31,850 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:12:31,852 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:12:31,852 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:12:31,853 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:12:31,853 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:12:31,853 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:12:31,854 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:12:31,854 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:12:31,855 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:12:31,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:12:31,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:12:31,856 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:12:31,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:12:31,858 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:12:31,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:12:31,859 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:12:31,860 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:12:31,860 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:12:31,861 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_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a99cd47cb89075c534de557ec34a8319cd4d0f3080d4e7f4d1690c11fbbfbd6 [2024-11-09 07:12:32,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:12:32,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:12:32,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:12:32,239 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:12:32,239 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:12:32,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c Unable to find full path for "g++" [2024-11-09 07:12:34,860 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:12:35,143 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:12:35,144 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c [2024-11-09 07:12:35,163 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/data/2f94c2052/cf0af13303644af2be3cfcb357fe3346/FLAG1db5a5973 [2024-11-09 07:12:35,456 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/data/2f94c2052/cf0af13303644af2be3cfcb357fe3346 [2024-11-09 07:12:35,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:12:35,461 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:12:35,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:12:35,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:12:35,471 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:12:35,472 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:12:35" (1/1) ... [2024-11-09 07:12:35,474 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f29a04b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:12:35, skipping insertion in model container [2024-11-09 07:12:35,474 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:12:35" (1/1) ... [2024-11-09 07:12:35,530 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:12:35,970 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_ec3cfbd3-486d-45aa-898e-f743f3987cfa/sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c[14789,14802] [2024-11-09 07:12:35,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:12:36,016 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:12:36,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] [2024-11-09 07:12:36,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [101] [2024-11-09 07:12:36,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [244] [2024-11-09 07:12:36,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [312] [2024-11-09 07:12:36,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [678] [2024-11-09 07:12:36,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [687] [2024-11-09 07:12:36,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [787] [2024-11-09 07:12:36,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [867] [2024-11-09 07:12:36,128 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_ec3cfbd3-486d-45aa-898e-f743f3987cfa/sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c[14789,14802] [2024-11-09 07:12:36,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:12:36,189 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:12:36,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:12:36 WrapperNode [2024-11-09 07:12:36,190 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:12:36,192 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:12:36,192 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:12:36,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:12:36,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:12:36" (1/1) ... [2024-11-09 07:12:36,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:12:36" (1/1) ... [2024-11-09 07:12:36,277 INFO L138 Inliner]: procedures = 52, calls = 95, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 164 [2024-11-09 07:12:36,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:12:36,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:12:36,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:12:36,282 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:12:36,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:12:36" (1/1) ... [2024-11-09 07:12:36,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:12:36" (1/1) ... [2024-11-09 07:12:36,322 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:12:36" (1/1) ... [2024-11-09 07:12:36,322 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:12:36" (1/1) ... [2024-11-09 07:12:36,332 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:12:36" (1/1) ... [2024-11-09 07:12:36,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:12:36" (1/1) ... [2024-11-09 07:12:36,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:12:36" (1/1) ... [2024-11-09 07:12:36,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:12:36" (1/1) ... [2024-11-09 07:12:36,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:12:36,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:12:36,364 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:12:36,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:12:36,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:12:36" (1/1) ... [2024-11-09 07:12:36,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:12:36,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:12:36,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:12:36,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:12:36,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:12:36,486 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-09 07:12:36,486 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-09 07:12:36,486 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-09 07:12:36,486 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-09 07:12:36,487 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-09 07:12:36,487 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-09 07:12:36,487 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-09 07:12:36,488 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-09 07:12:36,488 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-09 07:12:36,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-09 07:12:36,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:12:36,488 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-09 07:12:36,489 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-09 07:12:36,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:12:36,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:12:36,586 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:12:36,590 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:12:36,932 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-11-09 07:12:36,932 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:12:37,080 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:12:37,084 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 07:12:37,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:12:37 BoogieIcfgContainer [2024-11-09 07:12:37,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:12:37,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:12:37,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:12:37,096 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:12:37,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:12:35" (1/3) ... [2024-11-09 07:12:37,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2effc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:12:37, skipping insertion in model container [2024-11-09 07:12:37,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:12:36" (2/3) ... [2024-11-09 07:12:37,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2effc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:12:37, skipping insertion in model container [2024-11-09 07:12:37,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:12:37" (3/3) ... [2024-11-09 07:12:37,102 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product05.cil.c [2024-11-09 07:12:37,132 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:12:37,132 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:12:37,197 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:12:37,204 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;@1edb9505, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:12:37,204 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:12:37,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 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) [2024-11-09 07:12:37,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 07:12:37,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:37,219 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] [2024-11-09 07:12:37,219 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:12:37,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:37,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1164306050, now seen corresponding path program 1 times [2024-11-09 07:12:37,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:12:37,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460466124] [2024-11-09 07:12:37,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:37,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:12:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:37,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:12:37,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:12:37,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460466124] [2024-11-09 07:12:37,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460466124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:12:37,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:12:37,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:12:37,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314154652] [2024-11-09 07:12:37,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:12:37,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:12:37,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:12:37,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:12:37,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:12:37,505 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:12:37,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:12:37,618 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2024-11-09 07:12:37,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:12:37,621 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-09 07:12:37,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:12:37,635 INFO L225 Difference]: With dead ends: 100 [2024-11-09 07:12:37,635 INFO L226 Difference]: Without dead ends: 46 [2024-11-09 07:12:37,639 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 [2024-11-09 07:12:37,643 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 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 [2024-11-09 07:12:37,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:12:37,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-09 07:12:37,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-09 07:12:37,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 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) [2024-11-09 07:12:37,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2024-11-09 07:12:37,705 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2024-11-09 07:12:37,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:12:37,706 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2024-11-09 07:12:37,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:12:37,707 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2024-11-09 07:12:37,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 07:12:37,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:37,709 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] [2024-11-09 07:12:37,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:12:37,710 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:12:37,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:37,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1308134161, now seen corresponding path program 1 times [2024-11-09 07:12:37,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:12:37,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008098757] [2024-11-09 07:12:37,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:37,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:12:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:37,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:12:37,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:12:37,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008098757] [2024-11-09 07:12:37,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008098757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:12:37,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:12:37,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:12:37,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031481513] [2024-11-09 07:12:37,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:12:37,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:12:37,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:12:37,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:12:37,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:12:37,861 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:12:37,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:12:37,913 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2024-11-09 07:12:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:12:37,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-11-09 07:12:37,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:12:37,915 INFO L225 Difference]: With dead ends: 69 [2024-11-09 07:12:37,915 INFO L226 Difference]: Without dead ends: 38 [2024-11-09 07:12:37,916 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 [2024-11-09 07:12:37,918 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 61 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 [2024-11-09 07:12:37,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 61 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:12:37,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-09 07:12:37,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-09 07:12:37,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 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) [2024-11-09 07:12:37,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2024-11-09 07:12:37,927 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 22 [2024-11-09 07:12:37,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:12:37,928 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2024-11-09 07:12:37,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:12:37,928 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2024-11-09 07:12:37,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 07:12:37,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:37,930 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] [2024-11-09 07:12:37,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:12:37,930 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:12:37,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:37,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1706257544, now seen corresponding path program 1 times [2024-11-09 07:12:37,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:12:37,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953040692] [2024-11-09 07:12:37,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:37,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:12:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:38,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:12:38,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:12:38,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953040692] [2024-11-09 07:12:38,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953040692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:12:38,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:12:38,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:12:38,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375996693] [2024-11-09 07:12:38,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:12:38,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:12:38,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:12:38,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:12:38,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:12:38,161 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:12:38,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:12:38,242 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2024-11-09 07:12:38,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:12:38,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2024-11-09 07:12:38,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:12:38,245 INFO L225 Difference]: With dead ends: 74 [2024-11-09 07:12:38,245 INFO L226 Difference]: Without dead ends: 38 [2024-11-09 07:12:38,246 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 [2024-11-09 07:12:38,252 INFO L432 NwaCegarLoop]: 33 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, 33 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 [2024-11-09 07:12:38,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 33 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:12:38,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-09 07:12:38,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-09 07:12:38,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 30 states have internal predecessors, (32), 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) [2024-11-09 07:12:38,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2024-11-09 07:12:38,274 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 24 [2024-11-09 07:12:38,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:12:38,278 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2024-11-09 07:12:38,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:12:38,280 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2024-11-09 07:12:38,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 07:12:38,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:38,281 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] [2024-11-09 07:12:38,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:12:38,284 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:12:38,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:38,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1798992265, now seen corresponding path program 1 times [2024-11-09 07:12:38,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:12:38,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043066635] [2024-11-09 07:12:38,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:38,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:12:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:38,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:12:38,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:12:38,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043066635] [2024-11-09 07:12:38,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043066635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:12:38,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:12:38,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:12:38,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180849197] [2024-11-09 07:12:38,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:12:38,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:12:38,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:12:38,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:12:38,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:12:38,525 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:12:38,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:12:38,570 INFO L93 Difference]: Finished difference Result 72 states and 87 transitions. [2024-11-09 07:12:38,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:12:38,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2024-11-09 07:12:38,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:12:38,572 INFO L225 Difference]: With dead ends: 72 [2024-11-09 07:12:38,572 INFO L226 Difference]: Without dead ends: 36 [2024-11-09 07:12:38,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:12:38,575 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:12:38,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 30 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:12:38,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-09 07:12:38,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-09 07:12:38,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:12:38,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2024-11-09 07:12:38,586 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 27 [2024-11-09 07:12:38,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:12:38,586 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2024-11-09 07:12:38,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:12:38,587 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2024-11-09 07:12:38,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 07:12:38,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:38,588 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] [2024-11-09 07:12:38,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:12:38,589 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:12:38,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:38,590 INFO L85 PathProgramCache]: Analyzing trace with hash 2049741577, now seen corresponding path program 1 times [2024-11-09 07:12:38,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:12:38,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515372837] [2024-11-09 07:12:38,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:38,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:12:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:38,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:12:38,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:12:38,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515372837] [2024-11-09 07:12:38,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515372837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:12:38,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:12:38,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:12:38,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645882903] [2024-11-09 07:12:38,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:12:38,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:12:38,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:12:38,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:12:38,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:12:38,836 INFO L87 Difference]: Start difference. First operand 36 states and 41 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) [2024-11-09 07:12:39,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:12:39,024 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2024-11-09 07:12:39,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:12:39,025 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 [2024-11-09 07:12:39,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:12:39,025 INFO L225 Difference]: With dead ends: 67 [2024-11-09 07:12:39,026 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 07:12:39,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:12:39,028 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 18 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:12:39,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 83 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:12:39,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 07:12:39,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 07:12:39,037 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) [2024-11-09 07:12:39,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 07:12:39,037 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2024-11-09 07:12:39,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:12:39,038 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 07:12:39,038 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) [2024-11-09 07:12:39,039 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 07:12:39,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 07:12:39,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 07:12:39,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:12:39,048 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-09 07:12:39,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 07:12:39,411 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:12:39,486 WARN L162 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0)) Eliminated clause: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0)) [2024-11-09 07:12:39,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:12:39 BoogieIcfgContainer [2024-11-09 07:12:39,502 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:12:39,507 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:12:39,507 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:12:39,508 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:12:39,508 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:12:37" (3/4) ... [2024-11-09 07:12:39,514 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 07:12:39,519 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-09 07:12:39,519 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-09 07:12:39,519 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-09 07:12:39,519 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-09 07:12:39,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-09 07:12:39,521 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-09 07:12:39,533 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2024-11-09 07:12:39,533 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-09 07:12:39,534 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 07:12:39,534 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 07:12:39,535 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 07:12:39,681 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 07:12:39,682 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 07:12:39,682 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:12:39,683 INFO L158 Benchmark]: Toolchain (without parser) took 4221.60ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 88.1MB in the beginning and 61.7MB in the end (delta: 26.5MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. [2024-11-09 07:12:39,683 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:12:39,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 727.80ms. Allocated memory is still 127.9MB. Free memory was 87.8MB in the beginning and 66.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 07:12:39,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.07ms. Allocated memory is still 127.9MB. Free memory was 66.8MB in the beginning and 64.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:12:39,684 INFO L158 Benchmark]: Boogie Preprocessor took 81.12ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 64.8MB in the beginning and 124.0MB in the end (delta: -59.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-11-09 07:12:39,685 INFO L158 Benchmark]: RCFGBuilder took 721.40ms. Allocated memory is still 155.2MB. Free memory was 123.9MB in the beginning and 102.5MB in the end (delta: 21.4MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2024-11-09 07:12:39,685 INFO L158 Benchmark]: TraceAbstraction took 2413.58ms. Allocated memory is still 155.2MB. Free memory was 102.5MB in the beginning and 69.0MB in the end (delta: 33.5MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2024-11-09 07:12:39,685 INFO L158 Benchmark]: Witness Printer took 174.71ms. Allocated memory is still 155.2MB. Free memory was 69.0MB in the beginning and 61.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 07:12:39,687 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 727.80ms. Allocated memory is still 127.9MB. Free memory was 87.8MB in the beginning and 66.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.07ms. Allocated memory is still 127.9MB. Free memory was 66.8MB in the beginning and 64.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.12ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 64.8MB in the beginning and 124.0MB in the end (delta: -59.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * RCFGBuilder took 721.40ms. Allocated memory is still 155.2MB. Free memory was 123.9MB in the beginning and 102.5MB in the end (delta: 21.4MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2413.58ms. Allocated memory is still 155.2MB. Free memory was 102.5MB in the beginning and 69.0MB in the end (delta: 33.5MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. * Witness Printer took 174.71ms. Allocated memory is still 155.2MB. Free memory was 69.0MB in the beginning and 61.7MB in the end (delta: 7.3MB). 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,"Specification5_spec.i","") [49] - GenericResultAtLocation [Line: 101]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [101] - GenericResultAtLocation [Line: 244]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [244] - GenericResultAtLocation [Line: 312]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [312] - GenericResultAtLocation [Line: 678]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [678] - GenericResultAtLocation [Line: 687]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [687] - GenericResultAtLocation [Line: 787]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [787] - GenericResultAtLocation [Line: 867]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [867] * 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: 683]: 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, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 91 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 256 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 122 IncrementalHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 171 mSDtfsCounter, 122 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 214 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 10/10 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: 258]: Loop Invariant Derived loop invariant: (((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) - InvariantResult [Line: 257]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 139]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((pumpRunning == 0) && (1 == systemActive)) Ensures: (((pumpRunning == 0) && (1 == systemActive)) && (((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 814]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((pumpRunning == 0) && (1 == systemActive)) Ensures: (((pumpRunning == 0) && (1 == systemActive)) && ((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel)))) - ProcedureContractResult [Line: 689]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 112]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((pumpRunning == 0) && (1 == systemActive)) Ensures: ((((pumpRunning == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && ((((systemActive == \old(systemActive)) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 802]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((pumpRunning == 0) && (1 == systemActive)) Ensures: (((pumpRunning == 0) && (1 == systemActive)) && ((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 199]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: ((pumpRunning == 0) && (1 == systemActive)) Ensures: ((((pumpRunning == 0) && (\result == 0)) && (1 == systemActive)) && (((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) RESULT: Ultimate proved your program to be correct! [2024-11-09 07:12:39,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3cfbd3-486d-45aa-898e-f743f3987cfa/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE