./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b1639abd1442c0be189a21b610783cf9fd230aa6a3ef085b8b036961bd01ca7b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:30:47,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:30:47,771 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 03:30:47,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:30:47,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:30:47,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:30:47,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:30:47,814 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:30:47,815 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:30:47,815 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:30:47,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:30:47,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:30:47,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:30:47,818 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:30:47,818 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:30:47,819 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:30:47,819 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:30:47,820 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:30:47,820 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:30:47,821 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:30:47,821 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:30:47,822 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:30:47,822 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:30:47,822 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:30:47,823 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:30:47,823 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:30:47,824 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:30:47,824 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:30:47,825 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:30:47,825 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:30:47,825 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:30:47,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:30:47,826 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:30:47,826 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:30:47,826 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:30:47,827 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:30:47,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:30:47,827 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:30:47,827 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:30:47,827 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:30:47,827 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:30:47,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:30:47,828 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1639abd1442c0be189a21b610783cf9fd230aa6a3ef085b8b036961bd01ca7b [2023-11-29 03:30:48,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:30:48,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:30:48,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:30:48,073 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:30:48,073 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:30:48,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2023-11-29 03:30:50,825 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:30:51,042 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:30:51,043 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2023-11-29 03:30:51,055 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya/data/bde21ec12/ad64d6e8dd0b409e99979059634a95e3/FLAGe430c89ba [2023-11-29 03:30:51,068 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya/data/bde21ec12/ad64d6e8dd0b409e99979059634a95e3 [2023-11-29 03:30:51,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:30:51,072 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:30:51,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:30:51,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:30:51,079 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:30:51,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:30:51" (1/1) ... [2023-11-29 03:30:51,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363d31f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:51, skipping insertion in model container [2023-11-29 03:30:51,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:30:51" (1/1) ... [2023-11-29 03:30:51,138 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:30:51,308 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_66ddb2ed-25bf-40e0-aba2-5298e03924c0/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c[2897,2910] [2023-11-29 03:30:51,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:30:51,407 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:30:51,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-11-29 03:30:51,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [153] [2023-11-29 03:30:51,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [162] [2023-11-29 03:30:51,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [199] [2023-11-29 03:30:51,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [565] [2023-11-29 03:30:51,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [600] [2023-11-29 03:30:51,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [791] [2023-11-29 03:30:51,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [858] [2023-11-29 03:30:51,430 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_66ddb2ed-25bf-40e0-aba2-5298e03924c0/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c[2897,2910] [2023-11-29 03:30:51,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:30:51,498 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:30:51,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:51 WrapperNode [2023-11-29 03:30:51,499 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:30:51,500 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:30:51,500 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:30:51,500 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:30:51,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:51" (1/1) ... [2023-11-29 03:30:51,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:51" (1/1) ... [2023-11-29 03:30:51,549 INFO L138 Inliner]: procedures = 54, calls = 98, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 200 [2023-11-29 03:30:51,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:30:51,550 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:30:51,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:30:51,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:30:51,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:51" (1/1) ... [2023-11-29 03:30:51,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:51" (1/1) ... [2023-11-29 03:30:51,565 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:51" (1/1) ... [2023-11-29 03:30:51,580 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 03:30:51,580 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:51" (1/1) ... [2023-11-29 03:30:51,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:51" (1/1) ... [2023-11-29 03:30:51,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:51" (1/1) ... [2023-11-29 03:30:51,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:51" (1/1) ... [2023-11-29 03:30:51,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:51" (1/1) ... [2023-11-29 03:30:51,593 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:51" (1/1) ... [2023-11-29 03:30:51,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:30:51,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:30:51,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:30:51,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:30:51,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:51" (1/1) ... [2023-11-29 03:30:51,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:30:51,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:51,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:30:51,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:30:51,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:30:51,661 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-29 03:30:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-29 03:30:51,662 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-29 03:30:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-29 03:30:51,662 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-29 03:30:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-29 03:30:51,662 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-29 03:30:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-29 03:30:51,663 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-29 03:30:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-29 03:30:51,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:30:51,663 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-29 03:30:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-29 03:30:51,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:30:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:30:51,741 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:30:51,743 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:30:52,010 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:30:52,074 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:30:52,074 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 03:30:52,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:30:52 BoogieIcfgContainer [2023-11-29 03:30:52,075 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:30:52,077 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:30:52,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:30:52,081 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:30:52,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:30:51" (1/3) ... [2023-11-29 03:30:52,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a62a158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:30:52, skipping insertion in model container [2023-11-29 03:30:52,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:51" (2/3) ... [2023-11-29 03:30:52,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a62a158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:30:52, skipping insertion in model container [2023-11-29 03:30:52,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:30:52" (3/3) ... [2023-11-29 03:30:52,085 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2023-11-29 03:30:52,104 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:30:52,105 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:30:52,156 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:30:52,163 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=PETRI_NET, 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;@65896d30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:30:52,163 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:30:52,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 47 states have (on average 1.553191489361702) internal successors, (73), 53 states have internal predecessors, (73), 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) [2023-11-29 03:30:52,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 03:30:52,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:52,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:52,178 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:30:52,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:52,182 INFO L85 PathProgramCache]: Analyzing trace with hash 872632701, now seen corresponding path program 1 times [2023-11-29 03:30:52,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:52,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732905196] [2023-11-29 03:30:52,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:52,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:52,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 03:30:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:52,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:52,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:52,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732905196] [2023-11-29 03:30:52,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732905196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:52,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:52,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:30:52,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200952403] [2023-11-29 03:30:52,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:52,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:30:52,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:52,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:30:52,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:30:52,380 INFO L87 Difference]: Start difference. First operand has 65 states, 47 states have (on average 1.553191489361702) internal successors, (73), 53 states have internal predecessors, (73), 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 6.5) internal successors, (13), 2 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) [2023-11-29 03:30:52,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:52,439 INFO L93 Difference]: Finished difference Result 128 states and 187 transitions. [2023-11-29 03:30:52,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:30:52,442 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 [2023-11-29 03:30:52,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:52,450 INFO L225 Difference]: With dead ends: 128 [2023-11-29 03:30:52,450 INFO L226 Difference]: Without dead ends: 60 [2023-11-29 03:30:52,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:30:52,457 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:52,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:30:52,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-29 03:30:52,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-29 03:30:52,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 49 states have internal predecessors, (63), 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) [2023-11-29 03:30:52,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 82 transitions. [2023-11-29 03:30:52,496 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 82 transitions. Word has length 17 [2023-11-29 03:30:52,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:52,497 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 82 transitions. [2023-11-29 03:30:52,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2023-11-29 03:30:52,497 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 82 transitions. [2023-11-29 03:30:52,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 03:30:52,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:52,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:52,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:30:52,500 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:30:52,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:52,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1082213181, now seen corresponding path program 1 times [2023-11-29 03:30:52,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:52,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278047077] [2023-11-29 03:30:52,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:52,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:52,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 03:30:52,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:52,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:52,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:52,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278047077] [2023-11-29 03:30:52,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278047077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:52,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:52,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:52,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468477219] [2023-11-29 03:30:52,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:52,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:30:52,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:52,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:30:52,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:30:52,613 INFO L87 Difference]: Start difference. First operand 60 states and 82 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-29 03:30:52,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:52,653 INFO L93 Difference]: Finished difference Result 91 states and 124 transitions. [2023-11-29 03:30:52,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:30:52,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 18 [2023-11-29 03:30:52,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:52,655 INFO L225 Difference]: With dead ends: 91 [2023-11-29 03:30:52,655 INFO L226 Difference]: Without dead ends: 52 [2023-11-29 03:30:52,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:30:52,658 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 14 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:52,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 103 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:30:52,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-29 03:30:52,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-29 03:30:52,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 44 states have internal predecessors, (57), 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) [2023-11-29 03:30:52,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2023-11-29 03:30:52,669 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 18 [2023-11-29 03:30:52,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:52,669 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2023-11-29 03:30:52,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-29 03:30:52,670 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2023-11-29 03:30:52,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 03:30:52,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:52,671 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] [2023-11-29 03:30:52,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:30:52,671 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:30:52,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:52,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1333161072, now seen corresponding path program 1 times [2023-11-29 03:30:52,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:52,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134708] [2023-11-29 03:30:52,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:52,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:52,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 03:30:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:52,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:52,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:52,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134708] [2023-11-29 03:30:52,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:52,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:52,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:30:52,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022815184] [2023-11-29 03:30:52,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:52,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:52,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:52,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:52,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:52,795 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-11-29 03:30:52,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:52,921 INFO L93 Difference]: Finished difference Result 150 states and 211 transitions. [2023-11-29 03:30:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:30:52,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 21 [2023-11-29 03:30:52,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:52,923 INFO L225 Difference]: With dead ends: 150 [2023-11-29 03:30:52,924 INFO L226 Difference]: Without dead ends: 100 [2023-11-29 03:30:52,925 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 [2023-11-29 03:30:52,926 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 83 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:52,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 170 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:30:52,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-29 03:30:52,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 83. [2023-11-29 03:30:52,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 62 states have (on average 1.467741935483871) internal successors, (91), 69 states have internal predecessors, (91), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (12), 10 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 03:30:52,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 114 transitions. [2023-11-29 03:30:52,944 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 114 transitions. Word has length 21 [2023-11-29 03:30:52,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:52,944 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 114 transitions. [2023-11-29 03:30:52,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-11-29 03:30:52,945 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 114 transitions. [2023-11-29 03:30:52,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 03:30:52,946 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:52,946 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] [2023-11-29 03:30:52,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:30:52,947 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:30:52,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:52,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1480022511, now seen corresponding path program 1 times [2023-11-29 03:30:52,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:52,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240913782] [2023-11-29 03:30:52,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:52,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:53,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-29 03:30:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:53,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:53,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240913782] [2023-11-29 03:30:53,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240913782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:53,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:53,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:30:53,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955334343] [2023-11-29 03:30:53,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:53,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:53,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:53,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:53,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:53,088 INFO L87 Difference]: Start difference. First operand 83 states and 114 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:30:53,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:53,172 INFO L93 Difference]: Finished difference Result 245 states and 351 transitions. [2023-11-29 03:30:53,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:30:53,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-11-29 03:30:53,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:53,175 INFO L225 Difference]: With dead ends: 245 [2023-11-29 03:30:53,176 INFO L226 Difference]: Without dead ends: 164 [2023-11-29 03:30:53,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:53,179 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 49 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:53,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 160 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:30:53,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-29 03:30:53,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 158. [2023-11-29 03:30:53,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 117 states have (on average 1.4444444444444444) internal successors, (169), 130 states have internal predecessors, (169), 22 states have call successors, (22), 18 states have call predecessors, (22), 18 states have return successors, (32), 20 states have call predecessors, (32), 22 states have call successors, (32) [2023-11-29 03:30:53,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 223 transitions. [2023-11-29 03:30:53,206 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 223 transitions. Word has length 24 [2023-11-29 03:30:53,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:53,206 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 223 transitions. [2023-11-29 03:30:53,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:30:53,207 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 223 transitions. [2023-11-29 03:30:53,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 03:30:53,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:53,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:53,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 03:30:53,211 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:30:53,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:53,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1882157002, now seen corresponding path program 1 times [2023-11-29 03:30:53,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:53,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405271847] [2023-11-29 03:30:53,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:53,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:53,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 03:30:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:53,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:53,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:53,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405271847] [2023-11-29 03:30:53,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405271847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:53,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:53,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:30:53,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616466315] [2023-11-29 03:30:53,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:53,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:30:53,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:53,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:30:53,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:53,318 INFO L87 Difference]: Start difference. First operand 158 states and 223 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2023-11-29 03:30:53,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:53,477 INFO L93 Difference]: Finished difference Result 517 states and 774 transitions. [2023-11-29 03:30:53,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:30:53,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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 26 [2023-11-29 03:30:53,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:53,483 INFO L225 Difference]: With dead ends: 517 [2023-11-29 03:30:53,483 INFO L226 Difference]: Without dead ends: 361 [2023-11-29 03:30:53,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:30:53,488 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 108 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:53,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 302 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:30:53,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-29 03:30:53,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 345. [2023-11-29 03:30:53,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 258 states have (on average 1.4224806201550388) internal successors, (367), 279 states have internal predecessors, (367), 47 states have call successors, (47), 41 states have call predecessors, (47), 39 states have return successors, (74), 42 states have call predecessors, (74), 47 states have call successors, (74) [2023-11-29 03:30:53,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 488 transitions. [2023-11-29 03:30:53,543 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 488 transitions. Word has length 26 [2023-11-29 03:30:53,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:53,544 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 488 transitions. [2023-11-29 03:30:53,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2023-11-29 03:30:53,544 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 488 transitions. [2023-11-29 03:30:53,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 03:30:53,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:53,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:53,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 03:30:53,548 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:30:53,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:53,549 INFO L85 PathProgramCache]: Analyzing trace with hash -498600043, now seen corresponding path program 1 times [2023-11-29 03:30:53,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:53,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597558827] [2023-11-29 03:30:53,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:53,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:30:53,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:30:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:30:53,595 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:30:53,595 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 03:30:53,596 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 03:30:53,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 03:30:53,600 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-29 03:30:53,604 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:30:53,627 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-11-29 03:30:53,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:30:53 BoogieIcfgContainer [2023-11-29 03:30:53,640 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:30:53,641 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:30:53,641 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:30:53,641 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:30:53,642 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:30:52" (3/4) ... [2023-11-29 03:30:53,643 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-29 03:30:53,654 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-11-29 03:30:53,695 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 03:30:53,695 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:30:53,696 INFO L158 Benchmark]: Toolchain (without parser) took 2623.56ms. Allocated memory is still 176.2MB. Free memory was 145.7MB in the beginning and 77.2MB in the end (delta: 68.5MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2023-11-29 03:30:53,696 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 123.7MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:30:53,697 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.30ms. Allocated memory is still 176.2MB. Free memory was 145.5MB in the beginning and 129.7MB in the end (delta: 15.7MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2023-11-29 03:30:53,697 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.98ms. Allocated memory is still 176.2MB. Free memory was 129.7MB in the beginning and 127.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:30:53,698 INFO L158 Benchmark]: Boogie Preprocessor took 45.47ms. Allocated memory is still 176.2MB. Free memory was 127.8MB in the beginning and 125.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:30:53,698 INFO L158 Benchmark]: RCFGBuilder took 478.61ms. Allocated memory is still 176.2MB. Free memory was 125.6MB in the beginning and 131.9MB in the end (delta: -6.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 03:30:53,698 INFO L158 Benchmark]: TraceAbstraction took 1562.83ms. Allocated memory is still 176.2MB. Free memory was 131.5MB in the beginning and 80.3MB in the end (delta: 51.2MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2023-11-29 03:30:53,699 INFO L158 Benchmark]: Witness Printer took 54.41ms. Allocated memory is still 176.2MB. Free memory was 80.3MB in the beginning and 77.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 03:30:53,701 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 123.7MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.30ms. Allocated memory is still 176.2MB. Free memory was 145.5MB in the beginning and 129.7MB in the end (delta: 15.7MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.98ms. Allocated memory is still 176.2MB. Free memory was 129.7MB in the beginning and 127.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.47ms. Allocated memory is still 176.2MB. Free memory was 127.8MB in the beginning and 125.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 478.61ms. Allocated memory is still 176.2MB. Free memory was 125.6MB in the beginning and 131.9MB in the end (delta: -6.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1562.83ms. Allocated memory is still 176.2MB. Free memory was 131.5MB in the beginning and 80.3MB in the end (delta: 51.2MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. * Witness Printer took 54.41ms. Allocated memory is still 176.2MB. Free memory was 80.3MB in the beginning and 77.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [153] - GenericResultAtLocation [Line: 162]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [162] - GenericResultAtLocation [Line: 199]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [199] - GenericResultAtLocation [Line: 565]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [565] - GenericResultAtLocation [Line: 600]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [600] - GenericResultAtLocation [Line: 791]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [791] - GenericResultAtLocation [Line: 858]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [858] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 158]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L369] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L607] int pumpRunning = 0; [L608] int systemActive = 1; [L859] int waterLevel = 1; [L860] int methaneLevelCritical = 0; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L592] int retValue_acc ; [L595] retValue_acc = 1 [L596] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L793] int splverifierCounter ; [L794] int tmp ; [L795] int tmp___0 ; [L796] int tmp___1 ; [L797] int tmp___2 ; [L800] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L802] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L804] COND TRUE splverifierCounter < 4 [L810] tmp = __VERIFIER_nondet_int() [L812] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L814] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L877] COND TRUE waterLevel < 2 [L878] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L814] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L820] tmp___0 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L830] tmp___2 = __VERIFIER_nondet_int() [L832] COND FALSE !(\read(tmp___2)) [L836] tmp___1 = __VERIFIER_nondet_int() [L838] COND TRUE \read(tmp___1) [L840] CALL stopSystem() [L780] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L787] systemActive = 0 [L840] RET stopSystem() [L847] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L614] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L621] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L629] CALL __utac_acc__Specification3_spec__1() [L167] int tmp ; [L168] int tmp___0 ; [L169] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L173] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L898] int retValue_acc ; [L901] retValue_acc = methaneLevelCritical [L902] return (retValue_acc); [L173] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L173] tmp = isMethaneLevelCritical() [L175] COND FALSE !(\read(tmp)) [L179] CALL, EXPR getWaterLevel() [L930] int retValue_acc ; [L933] retValue_acc = waterLevel [L934] return (retValue_acc); [L179] RET, EXPR getWaterLevel() [L179] tmp___0 = getWaterLevel() [L181] COND TRUE tmp___0 == 2 [L183] CALL, EXPR isPumpRunning() [L713] int retValue_acc ; [L716] retValue_acc = pumpRunning [L717] return (retValue_acc); [L183] RET, EXPR isPumpRunning() [L183] tmp___1 = isPumpRunning() [L185] COND FALSE !(\read(tmp___1)) [L189] CALL __automaton_fail() [L158] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 65 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 257 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 254 mSDsluCounter, 808 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 450 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 256 IncrementalHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 358 mSDtfsCounter, 256 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=345occurred in iteration=5, InterpolantAutomatonStates: 19, 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, 39 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 236 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-29 03:30:53,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ddb2ed-25bf-40e0-aba2-5298e03924c0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE