./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/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_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/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_29e51c38-b578-457e-879f-87d1319cb236/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 23f15893fb26009b2882a55698a2d895d2e3e404fcbd45ba17e1cf64b2b2b34e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:16:38,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:16:38,796 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 01:16:38,800 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:16:38,800 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:16:38,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:16:38,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:16:38,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:16:38,834 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:16:38,835 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:16:38,835 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:16:38,836 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:16:38,837 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:16:38,837 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:16:38,838 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:16:38,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:16:38,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:16:38,839 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:16:38,840 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:16:38,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:16:38,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:16:38,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:16:38,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:16:38,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:16:38,843 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:16:38,843 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:16:38,844 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:16:38,844 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:16:38,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:16:38,851 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:16:38,852 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:16:38,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:16:38,852 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:16:38,853 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:16:38,853 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:16:38,853 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:16:38,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:16:38,853 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:16:38,854 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:16:38,854 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:16:38,854 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:16:38,854 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:16:38,855 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_29e51c38-b578-457e-879f-87d1319cb236/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f15893fb26009b2882a55698a2d895d2e3e404fcbd45ba17e1cf64b2b2b34e [2023-11-29 01:16:39,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:16:39,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:16:39,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:16:39,089 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:16:39,090 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:16:39,091 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2023-11-29 01:16:41,919 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:16:42,145 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:16:42,146 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2023-11-29 01:16:42,159 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/data/5f042df90/82037a47b00f47a8b4c9d7820c644545/FLAG240788f2b [2023-11-29 01:16:42,173 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/data/5f042df90/82037a47b00f47a8b4c9d7820c644545 [2023-11-29 01:16:42,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:16:42,176 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:16:42,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:16:42,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:16:42,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:16:42,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:16:42" (1/1) ... [2023-11-29 01:16:42,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65e20df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:16:42, skipping insertion in model container [2023-11-29 01:16:42,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:16:42" (1/1) ... [2023-11-29 01:16:42,236 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:16:42,477 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_29e51c38-b578-457e-879f-87d1319cb236/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c[17055,17068] [2023-11-29 01:16:42,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:16:42,500 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:16:42,509 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-29 01:16:42,510 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [415] [2023-11-29 01:16:42,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [487] [2023-11-29 01:16:42,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [674] [2023-11-29 01:16:42,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [714] [2023-11-29 01:16:42,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [752] [2023-11-29 01:16:42,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [849] [2023-11-29 01:16:42,512 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [858] [2023-11-29 01:16:42,572 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_29e51c38-b578-457e-879f-87d1319cb236/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c[17055,17068] [2023-11-29 01:16:42,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:16:42,595 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:16:42,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:16:42 WrapperNode [2023-11-29 01:16:42,596 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:16:42,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:16:42,597 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:16:42,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:16:42,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:16:42" (1/1) ... [2023-11-29 01:16:42,617 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:16:42" (1/1) ... [2023-11-29 01:16:42,643 INFO L138 Inliner]: procedures = 55, calls = 97, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 192 [2023-11-29 01:16:42,643 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:16:42,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:16:42,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:16:42,644 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:16:42,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:16:42" (1/1) ... [2023-11-29 01:16:42,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:16:42" (1/1) ... [2023-11-29 01:16:42,656 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:16:42" (1/1) ... [2023-11-29 01:16:42,675 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 01:16:42,675 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:16:42" (1/1) ... [2023-11-29 01:16:42,675 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:16:42" (1/1) ... [2023-11-29 01:16:42,681 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:16:42" (1/1) ... [2023-11-29 01:16:42,686 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:16:42" (1/1) ... [2023-11-29 01:16:42,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:16:42" (1/1) ... [2023-11-29 01:16:42,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:16:42" (1/1) ... [2023-11-29 01:16:42,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:16:42,693 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:16:42,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:16:42,693 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:16:42,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:16:42" (1/1) ... [2023-11-29 01:16:42,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:16:42,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:16:42,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:16:42,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:16:42,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:16:42,752 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-29 01:16:42,752 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-29 01:16:42,753 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-29 01:16:42,753 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-29 01:16:42,753 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-29 01:16:42,753 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-29 01:16:42,753 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-29 01:16:42,753 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-29 01:16:42,753 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-29 01:16:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-29 01:16:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:16:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-29 01:16:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-29 01:16:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:16:42,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:16:42,830 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:16:42,831 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:16:43,032 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:16:43,090 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:16:43,090 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 01:16:43,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:16:43 BoogieIcfgContainer [2023-11-29 01:16:43,091 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:16:43,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:16:43,094 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:16:43,098 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:16:43,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:16:42" (1/3) ... [2023-11-29 01:16:43,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcc47db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:16:43, skipping insertion in model container [2023-11-29 01:16:43,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:16:42" (2/3) ... [2023-11-29 01:16:43,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcc47db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:16:43, skipping insertion in model container [2023-11-29 01:16:43,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:16:43" (3/3) ... [2023-11-29 01:16:43,101 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2023-11-29 01:16:43,119 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:16:43,119 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:16:43,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:16:43,179 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;@41d2182a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:16:43,179 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:16:43,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 51 states have internal predecessors, (70), 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 01:16:43,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 01:16:43,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:43,194 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 01:16:43,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:16:43,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:43,201 INFO L85 PathProgramCache]: Analyzing trace with hash 97319653, now seen corresponding path program 1 times [2023-11-29 01:16:43,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:43,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548328172] [2023-11-29 01:16:43,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:43,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:43,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:16:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:43,416 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 01:16:43,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:43,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548328172] [2023-11-29 01:16:43,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548328172] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:16:43,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:16:43,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:16:43,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577908115] [2023-11-29 01:16:43,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:16:43,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:16:43,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:43,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:16:43,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:16:43,465 INFO L87 Difference]: Start difference. First operand has 63 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 51 states have internal predecessors, (70), 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 01:16:43,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:43,527 INFO L93 Difference]: Finished difference Result 124 states and 181 transitions. [2023-11-29 01:16:43,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:16:43,530 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 01:16:43,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:43,539 INFO L225 Difference]: With dead ends: 124 [2023-11-29 01:16:43,540 INFO L226 Difference]: Without dead ends: 58 [2023-11-29 01:16:43,543 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 01:16:43,547 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:43,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:16:43,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-29 01:16:43,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-29 01:16:43,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 47 states have internal predecessors, (60), 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 01:16:43,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2023-11-29 01:16:43,589 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 17 [2023-11-29 01:16:43,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:43,589 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2023-11-29 01:16:43,589 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 01:16:43,590 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2023-11-29 01:16:43,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 01:16:43,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:43,592 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 01:16:43,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:16:43,593 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:16:43,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:43,594 INFO L85 PathProgramCache]: Analyzing trace with hash 119713670, now seen corresponding path program 1 times [2023-11-29 01:16:43,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:43,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12412285] [2023-11-29 01:16:43,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:43,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:43,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 01:16:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:43,749 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 01:16:43,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:43,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12412285] [2023-11-29 01:16:43,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12412285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:16:43,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:16:43,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:16:43,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916116418] [2023-11-29 01:16:43,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:16:43,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:16:43,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:43,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:16:43,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:16:43,754 INFO L87 Difference]: Start difference. First operand 58 states and 79 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 01:16:43,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:43,789 INFO L93 Difference]: Finished difference Result 89 states and 121 transitions. [2023-11-29 01:16:43,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:16:43,790 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 01:16:43,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:43,791 INFO L225 Difference]: With dead ends: 89 [2023-11-29 01:16:43,792 INFO L226 Difference]: Without dead ends: 50 [2023-11-29 01:16:43,792 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 01:16:43,794 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 11 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:43,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 103 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:16:43,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-29 01:16:43,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-29 01:16:43,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 42 states have internal predecessors, (54), 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 01:16:43,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 68 transitions. [2023-11-29 01:16:43,805 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 68 transitions. Word has length 18 [2023-11-29 01:16:43,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:43,805 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 68 transitions. [2023-11-29 01:16:43,806 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 01:16:43,806 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2023-11-29 01:16:43,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 01:16:43,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:43,807 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 01:16:43,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:16:43,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:16:43,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:43,809 INFO L85 PathProgramCache]: Analyzing trace with hash 917776965, now seen corresponding path program 1 times [2023-11-29 01:16:43,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:43,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274834277] [2023-11-29 01:16:43,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:43,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:43,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:16:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:43,928 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 01:16:43,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:43,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274834277] [2023-11-29 01:16:43,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274834277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:16:43,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:16:43,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:16:43,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620020692] [2023-11-29 01:16:43,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:16:43,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:16:43,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:43,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:16:43,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:16:43,931 INFO L87 Difference]: Start difference. First operand 50 states and 68 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 01:16:44,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:44,001 INFO L93 Difference]: Finished difference Result 98 states and 135 transitions. [2023-11-29 01:16:44,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:16:44,002 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 01:16:44,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:44,003 INFO L225 Difference]: With dead ends: 98 [2023-11-29 01:16:44,004 INFO L226 Difference]: Without dead ends: 50 [2023-11-29 01:16:44,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 01:16:44,006 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 74 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:44,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 96 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:16:44,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-29 01:16:44,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-29 01:16:44,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 42 states have internal predecessors, (53), 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 01:16:44,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2023-11-29 01:16:44,017 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 67 transitions. Word has length 21 [2023-11-29 01:16:44,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:44,018 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 67 transitions. [2023-11-29 01:16:44,018 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 01:16:44,018 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 67 transitions. [2023-11-29 01:16:44,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 01:16:44,019 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:44,020 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 01:16:44,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:16:44,020 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:16:44,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:44,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1693935728, now seen corresponding path program 1 times [2023-11-29 01:16:44,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:44,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405209230] [2023-11-29 01:16:44,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:44,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:16:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 01:16:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,076 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 01:16:44,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:44,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405209230] [2023-11-29 01:16:44,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405209230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:16:44,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:16:44,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:16:44,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475992326] [2023-11-29 01:16:44,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:16:44,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:16:44,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:44,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:16:44,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:16:44,079 INFO L87 Difference]: Start difference. First operand 50 states and 67 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), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:16:44,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:44,131 INFO L93 Difference]: Finished difference Result 134 states and 181 transitions. [2023-11-29 01:16:44,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:16:44,132 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), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-29 01:16:44,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:44,134 INFO L225 Difference]: With dead ends: 134 [2023-11-29 01:16:44,134 INFO L226 Difference]: Without dead ends: 86 [2023-11-29 01:16:44,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 01:16:44,137 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 57 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:44,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 105 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:16:44,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-29 01:16:44,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2023-11-29 01:16:44,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.403225806451613) internal successors, (87), 69 states have internal predecessors, (87), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-29 01:16:44,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 111 transitions. [2023-11-29 01:16:44,157 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 111 transitions. Word has length 26 [2023-11-29 01:16:44,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:44,158 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 111 transitions. [2023-11-29 01:16:44,158 INFO L496 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), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:16:44,159 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 111 transitions. [2023-11-29 01:16:44,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 01:16:44,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:44,160 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, 1, 1, 1] [2023-11-29 01:16:44,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:16:44,161 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:16:44,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:44,161 INFO L85 PathProgramCache]: Analyzing trace with hash -239839353, now seen corresponding path program 1 times [2023-11-29 01:16:44,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:44,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668353365] [2023-11-29 01:16:44,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:44,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 01:16:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 01:16:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,266 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 01:16:44,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:44,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668353365] [2023-11-29 01:16:44,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668353365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:16:44,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:16:44,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:16:44,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428696365] [2023-11-29 01:16:44,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:16:44,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:16:44,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:44,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:16:44,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:16:44,270 INFO L87 Difference]: Start difference. First operand 84 states and 111 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:16:44,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:44,332 INFO L93 Difference]: Finished difference Result 167 states and 222 transitions. [2023-11-29 01:16:44,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:16:44,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-11-29 01:16:44,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:44,334 INFO L225 Difference]: With dead ends: 167 [2023-11-29 01:16:44,334 INFO L226 Difference]: Without dead ends: 85 [2023-11-29 01:16:44,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 01:16:44,337 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 42 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:44,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 156 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:16:44,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-29 01:16:44,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2023-11-29 01:16:44,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 68 states have internal predecessors, (84), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-29 01:16:44,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 108 transitions. [2023-11-29 01:16:44,350 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 108 transitions. Word has length 31 [2023-11-29 01:16:44,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:44,350 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 108 transitions. [2023-11-29 01:16:44,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:16:44,351 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 108 transitions. [2023-11-29 01:16:44,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 01:16:44,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:44,352 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:16:44,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:16:44,352 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:16:44,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:44,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1457320366, now seen corresponding path program 1 times [2023-11-29 01:16:44,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:44,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784158205] [2023-11-29 01:16:44,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:44,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 01:16:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 01:16:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:16:44,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:44,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784158205] [2023-11-29 01:16:44,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784158205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:16:44,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:16:44,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:16:44,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886611028] [2023-11-29 01:16:44,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:16:44,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:16:44,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:44,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:16:44,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:16:44,426 INFO L87 Difference]: Start difference. First operand 83 states and 108 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:16:44,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:44,474 INFO L93 Difference]: Finished difference Result 167 states and 222 transitions. [2023-11-29 01:16:44,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:16:44,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2023-11-29 01:16:44,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:44,477 INFO L225 Difference]: With dead ends: 167 [2023-11-29 01:16:44,477 INFO L226 Difference]: Without dead ends: 86 [2023-11-29 01:16:44,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:16:44,479 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 1 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:44,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 161 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:16:44,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-29 01:16:44,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2023-11-29 01:16:44,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 70 states have internal predecessors, (86), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-29 01:16:44,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2023-11-29 01:16:44,493 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 34 [2023-11-29 01:16:44,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:44,493 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2023-11-29 01:16:44,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:16:44,494 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2023-11-29 01:16:44,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 01:16:44,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:44,495 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:16:44,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 01:16:44,495 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:16:44,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:44,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1148703188, now seen corresponding path program 1 times [2023-11-29 01:16:44,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:44,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062209034] [2023-11-29 01:16:44,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:44,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 01:16:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 01:16:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:16:44,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:44,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062209034] [2023-11-29 01:16:44,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062209034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:16:44,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:16:44,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:16:44,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630751690] [2023-11-29 01:16:44,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:16:44,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:16:44,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:44,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:16:44,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:16:44,573 INFO L87 Difference]: Start difference. First operand 85 states and 110 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:16:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:44,628 INFO L93 Difference]: Finished difference Result 181 states and 240 transitions. [2023-11-29 01:16:44,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:16:44,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2023-11-29 01:16:44,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:44,630 INFO L225 Difference]: With dead ends: 181 [2023-11-29 01:16:44,630 INFO L226 Difference]: Without dead ends: 98 [2023-11-29 01:16:44,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 01:16:44,632 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 12 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:44,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 181 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:16:44,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-29 01:16:44,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 87. [2023-11-29 01:16:44,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.353846153846154) internal successors, (88), 72 states have internal predecessors, (88), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-29 01:16:44,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2023-11-29 01:16:44,645 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 34 [2023-11-29 01:16:44,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:44,646 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2023-11-29 01:16:44,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:16:44,646 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2023-11-29 01:16:44,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 01:16:44,647 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:44,647 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:16:44,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 01:16:44,648 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:16:44,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:44,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1571405014, now seen corresponding path program 1 times [2023-11-29 01:16:44,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:44,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138515273] [2023-11-29 01:16:44,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:44,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 01:16:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 01:16:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:16:44,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:44,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138515273] [2023-11-29 01:16:44,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138515273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:16:44,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:16:44,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:16:44,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060430767] [2023-11-29 01:16:44,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:16:44,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:16:44,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:44,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:16:44,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:16:44,734 INFO L87 Difference]: Start difference. First operand 87 states and 112 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:16:44,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:44,783 INFO L93 Difference]: Finished difference Result 208 states and 270 transitions. [2023-11-29 01:16:44,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:16:44,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2023-11-29 01:16:44,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:44,786 INFO L225 Difference]: With dead ends: 208 [2023-11-29 01:16:44,786 INFO L226 Difference]: Without dead ends: 123 [2023-11-29 01:16:44,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 01:16:44,787 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 30 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:44,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 106 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:16:44,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-29 01:16:44,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-11-29 01:16:44,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 92 states have (on average 1.315217391304348) internal successors, (121), 100 states have internal predecessors, (121), 16 states have call successors, (16), 15 states have call predecessors, (16), 14 states have return successors, (18), 15 states have call predecessors, (18), 16 states have call successors, (18) [2023-11-29 01:16:44,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 155 transitions. [2023-11-29 01:16:44,804 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 155 transitions. Word has length 34 [2023-11-29 01:16:44,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:44,805 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 155 transitions. [2023-11-29 01:16:44,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:16:44,805 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 155 transitions. [2023-11-29 01:16:44,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 01:16:44,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:44,807 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:16:44,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 01:16:44,807 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:16:44,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:44,807 INFO L85 PathProgramCache]: Analyzing trace with hash -118317188, now seen corresponding path program 1 times [2023-11-29 01:16:44,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:44,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600041034] [2023-11-29 01:16:44,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:44,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:16:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 01:16:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 01:16:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:44,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:16:44,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:44,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600041034] [2023-11-29 01:16:44,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600041034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:16:44,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:16:44,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:16:44,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848838390] [2023-11-29 01:16:44,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:16:44,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:16:44,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:44,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:16:44,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:16:44,890 INFO L87 Difference]: Start difference. First operand 123 states and 155 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:16:45,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:45,083 INFO L93 Difference]: Finished difference Result 266 states and 349 transitions. [2023-11-29 01:16:45,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:16:45,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2023-11-29 01:16:45,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:45,087 INFO L225 Difference]: With dead ends: 266 [2023-11-29 01:16:45,087 INFO L226 Difference]: Without dead ends: 264 [2023-11-29 01:16:45,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 01:16:45,088 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 107 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:45,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 130 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:16:45,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2023-11-29 01:16:45,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 252. [2023-11-29 01:16:45,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 192 states have (on average 1.3125) internal successors, (252), 214 states have internal predecessors, (252), 34 states have call successors, (34), 22 states have call predecessors, (34), 25 states have return successors, (47), 31 states have call predecessors, (47), 34 states have call successors, (47) [2023-11-29 01:16:45,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 333 transitions. [2023-11-29 01:16:45,122 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 333 transitions. Word has length 38 [2023-11-29 01:16:45,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:45,122 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 333 transitions. [2023-11-29 01:16:45,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:16:45,122 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 333 transitions. [2023-11-29 01:16:45,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 01:16:45,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:45,126 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:16:45,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 01:16:45,126 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:16:45,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:45,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1869071216, now seen corresponding path program 1 times [2023-11-29 01:16:45,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:45,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087038693] [2023-11-29 01:16:45,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:45,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:45,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:16:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:45,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:16:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:45,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 01:16:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:45,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-29 01:16:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:45,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 01:16:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:45,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 01:16:45,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:16:45,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:45,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087038693] [2023-11-29 01:16:45,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087038693] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:16:45,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421883270] [2023-11-29 01:16:45,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:45,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:16:45,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:16:45,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:16:45,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:16:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:45,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:16:45,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:16:45,604 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 01:16:45,605 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:16:45,731 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:16:45,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421883270] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:16:45,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:16:45,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 5] total 13 [2023-11-29 01:16:45,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959177837] [2023-11-29 01:16:45,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:16:45,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:16:45,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:45,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:16:45,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:16:45,734 INFO L87 Difference]: Start difference. First operand 252 states and 333 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:16:45,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:45,901 INFO L93 Difference]: Finished difference Result 729 states and 982 transitions. [2023-11-29 01:16:45,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:16:45,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2023-11-29 01:16:45,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:45,907 INFO L225 Difference]: With dead ends: 729 [2023-11-29 01:16:45,907 INFO L226 Difference]: Without dead ends: 479 [2023-11-29 01:16:45,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 135 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:16:45,909 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 38 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:45,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 256 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:16:45,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-11-29 01:16:45,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 404. [2023-11-29 01:16:45,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 305 states have (on average 1.2819672131147541) internal successors, (391), 340 states have internal predecessors, (391), 55 states have call successors, (55), 37 states have call predecessors, (55), 43 states have return successors, (77), 51 states have call predecessors, (77), 55 states have call successors, (77) [2023-11-29 01:16:45,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 523 transitions. [2023-11-29 01:16:45,960 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 523 transitions. Word has length 65 [2023-11-29 01:16:45,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:45,960 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 523 transitions. [2023-11-29 01:16:45,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:16:45,961 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 523 transitions. [2023-11-29 01:16:45,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 01:16:45,964 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:45,964 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:16:45,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:16:46,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:16:46,165 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:16:46,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:46,165 INFO L85 PathProgramCache]: Analyzing trace with hash -992824180, now seen corresponding path program 1 times [2023-11-29 01:16:46,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:46,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852408469] [2023-11-29 01:16:46,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:46,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:16:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:46,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 01:16:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:46,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:16:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:46,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 01:16:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:46,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-29 01:16:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:46,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 01:16:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 01:16:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:46,380 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:16:46,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:46,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852408469] [2023-11-29 01:16:46,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852408469] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:16:46,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722371539] [2023-11-29 01:16:46,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:46,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:16:46,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:16:46,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:16:46,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:16:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:46,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:16:46,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:16:46,586 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 01:16:46,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:16:46,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722371539] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:16:46,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:16:46,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-11-29 01:16:46,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208083088] [2023-11-29 01:16:46,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:16:46,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:16:46,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:46,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:16:46,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:16:46,588 INFO L87 Difference]: Start difference. First operand 404 states and 523 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 01:16:46,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:46,723 INFO L93 Difference]: Finished difference Result 800 states and 1047 transitions. [2023-11-29 01:16:46,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:16:46,724 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 69 [2023-11-29 01:16:46,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:46,727 INFO L225 Difference]: With dead ends: 800 [2023-11-29 01:16:46,727 INFO L226 Difference]: Without dead ends: 398 [2023-11-29 01:16:46,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:16:46,729 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 45 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:46,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 320 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:16:46,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-11-29 01:16:46,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 334. [2023-11-29 01:16:46,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 252 states have (on average 1.2658730158730158) internal successors, (319), 275 states have internal predecessors, (319), 44 states have call successors, (44), 34 states have call predecessors, (44), 37 states have return successors, (56), 42 states have call predecessors, (56), 44 states have call successors, (56) [2023-11-29 01:16:46,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 419 transitions. [2023-11-29 01:16:46,759 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 419 transitions. Word has length 69 [2023-11-29 01:16:46,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:46,759 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 419 transitions. [2023-11-29 01:16:46,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 01:16:46,760 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 419 transitions. [2023-11-29 01:16:46,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 01:16:46,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:46,762 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:16:46,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:16:46,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:16:46,963 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:16:46,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:46,963 INFO L85 PathProgramCache]: Analyzing trace with hash -891225097, now seen corresponding path program 1 times [2023-11-29 01:16:46,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:46,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046484168] [2023-11-29 01:16:46,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:46,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:16:46,987 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:16:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:16:47,054 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:16:47,054 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:16:47,055 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 01:16:47,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 01:16:47,060 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:16:47,063 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:16:47,102 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret33 could not be translated [2023-11-29 01:16:47,103 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated [2023-11-29 01:16:47,107 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated [2023-11-29 01:16:47,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated [2023-11-29 01:16:47,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:16:47 BoogieIcfgContainer [2023-11-29 01:16:47,134 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:16:47,134 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:16:47,134 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:16:47,135 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:16:47,135 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:16:43" (3/4) ... [2023-11-29 01:16:47,136 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-29 01:16:47,151 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret33 could not be translated [2023-11-29 01:16:47,152 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated [2023-11-29 01:16:47,155 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated [2023-11-29 01:16:47,157 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated [2023-11-29 01:16:47,222 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 01:16:47,222 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:16:47,223 INFO L158 Benchmark]: Toolchain (without parser) took 5046.46ms. Allocated memory was 161.5MB in the beginning and 207.6MB in the end (delta: 46.1MB). Free memory was 121.9MB in the beginning and 161.8MB in the end (delta: -39.9MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2023-11-29 01:16:47,223 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 161.5MB. Free memory was 127.5MB in the beginning and 127.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:16:47,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.06ms. Allocated memory is still 161.5MB. Free memory was 121.9MB in the beginning and 102.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 01:16:47,224 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.19ms. Allocated memory is still 161.5MB. Free memory was 102.5MB in the beginning and 100.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:16:47,224 INFO L158 Benchmark]: Boogie Preprocessor took 48.49ms. Allocated memory is still 161.5MB. Free memory was 100.4MB in the beginning and 97.8MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:16:47,225 INFO L158 Benchmark]: RCFGBuilder took 397.97ms. Allocated memory is still 161.5MB. Free memory was 97.8MB in the beginning and 76.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 01:16:47,225 INFO L158 Benchmark]: TraceAbstraction took 4039.62ms. Allocated memory was 161.5MB in the beginning and 207.6MB in the end (delta: 46.1MB). Free memory was 76.3MB in the beginning and 170.2MB in the end (delta: -93.9MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2023-11-29 01:16:47,225 INFO L158 Benchmark]: Witness Printer took 88.00ms. Allocated memory is still 207.6MB. Free memory was 169.1MB in the beginning and 161.8MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 01:16:47,228 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 161.5MB. Free memory was 127.5MB in the beginning and 127.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 419.06ms. Allocated memory is still 161.5MB. Free memory was 121.9MB in the beginning and 102.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.19ms. Allocated memory is still 161.5MB. Free memory was 102.5MB in the beginning and 100.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.49ms. Allocated memory is still 161.5MB. Free memory was 100.4MB in the beginning and 97.8MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 397.97ms. Allocated memory is still 161.5MB. Free memory was 97.8MB in the beginning and 76.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4039.62ms. Allocated memory was 161.5MB in the beginning and 207.6MB in the end (delta: 46.1MB). Free memory was 76.3MB in the beginning and 170.2MB in the end (delta: -93.9MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. * Witness Printer took 88.00ms. Allocated memory is still 207.6MB. Free memory was 169.1MB in the beginning and 161.8MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [415] - GenericResultAtLocation [Line: 487]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [487] - GenericResultAtLocation [Line: 674]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [674] - GenericResultAtLocation [Line: 714]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [714] - GenericResultAtLocation [Line: 752]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [752] - GenericResultAtLocation [Line: 849]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [849] - GenericResultAtLocation [Line: 858]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [858] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret43 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: 854]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L496] int pumpRunning = 0; [L497] int systemActive = 1; [L676] int methAndRunningLastTime ; [L753] int cleanupTimeShifts = 4; [L860] int waterLevel = 1; [L861] int methaneLevelCritical = 0; [L827] int retValue_acc ; [L828] int tmp ; [L832] FCALL select_helpers() [L833] FCALL select_features() [L834] CALL, EXPR valid_product() [L744] int retValue_acc ; [L747] retValue_acc = 1 [L748] return (retValue_acc); [L834] RET, EXPR valid_product() [L834] tmp = valid_product() [L836] COND TRUE \read(tmp) [L838] FCALL setup() [L839] CALL runTest() [L820] CALL __utac_acc__Specification2_spec__1() [L681] methAndRunningLastTime = 0 [L820] RET __utac_acc__Specification2_spec__1() [L821] CALL test() [L422] int splverifierCounter ; [L423] int tmp ; [L424] int tmp___0 ; [L425] int tmp___1 ; [L426] int tmp___2 ; [L429] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L433] COND TRUE splverifierCounter < 4 [L439] tmp = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L443] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L878] COND TRUE waterLevel < 2 [L879] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L443] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L463] CALL startSystem() [L670] systemActive = 1 [L463] RET startSystem() [L476] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L504] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L511] COND TRUE \read(systemActive) [L513] CALL processEnvironment() [L533] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L536] COND TRUE ! pumpRunning [L538] CALL, EXPR isHighWaterLevel() [L648] int retValue_acc ; [L649] int tmp ; [L650] int tmp___0 ; [L654] CALL, EXPR isHighWaterSensorDry() [L940] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L943] COND FALSE !(waterLevel < 2) [L947] retValue_acc = 0 [L948] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L654] RET, EXPR isHighWaterSensorDry() [L654] tmp = isHighWaterSensorDry() [L656] COND FALSE !(\read(tmp)) [L659] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L661] retValue_acc = tmp___0 [L662] return (retValue_acc); [L538] RET, EXPR isHighWaterLevel() [L538] tmp = isHighWaterLevel() [L540] COND TRUE \read(tmp) [L542] CALL activatePump() [L567] int tmp ; [L571] CALL, EXPR isMethaneAlarm() [L592] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); [L596] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] retValue_acc = isMethaneLevelCritical() [L598] return (retValue_acc); [L571] RET, EXPR isMethaneAlarm() [L571] tmp = isMethaneAlarm() [L573] COND FALSE !(\read(tmp)) [L577] CALL activatePump__wrappee__highWaterSensor() [L561] pumpRunning = 1 [L577] RET activatePump__wrappee__highWaterSensor() [L542] RET activatePump() [L513] RET processEnvironment() [L519] CALL __utac_acc__Specification2_spec__2() [L686] int tmp ; [L687] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L691] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); [L691] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L691] tmp = isMethaneLevelCritical() [L693] COND FALSE !(\read(tmp)) [L709] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L519] RET __utac_acc__Specification2_spec__2() [L476] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L433] COND TRUE splverifierCounter < 4 [L439] tmp = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L453] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L890] COND FALSE !(\read(methaneLevelCritical)) [L893] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L453] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L463] CALL startSystem() [L670] systemActive = 1 [L463] RET startSystem() [L476] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L504] COND TRUE \read(pumpRunning) [L506] CALL lowerWaterLevel() [L866] COND TRUE waterLevel > 0 [L867] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L506] RET lowerWaterLevel() [L511] COND TRUE \read(systemActive) [L513] CALL processEnvironment() [L533] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L536] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L551] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L513] RET processEnvironment() [L519] CALL __utac_acc__Specification2_spec__2() [L686] int tmp ; [L687] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L691] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); [L691] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L691] tmp = isMethaneLevelCritical() [L693] COND TRUE \read(tmp) [L695] CALL, EXPR isPumpRunning() [L603] int retValue_acc ; [L606] retValue_acc = pumpRunning [L607] return (retValue_acc); [L695] RET, EXPR isPumpRunning() [L695] tmp___0 = isPumpRunning() [L697] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L698] COND FALSE !(\read(methAndRunningLastTime)) [L703] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L519] RET __utac_acc__Specification2_spec__2() [L476] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L433] COND TRUE splverifierCounter < 4 [L439] tmp = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L463] CALL startSystem() [L670] systemActive = 1 [L463] RET startSystem() [L476] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L504] COND TRUE \read(pumpRunning) [L506] CALL lowerWaterLevel() [L866] COND TRUE waterLevel > 0 [L867] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L506] RET lowerWaterLevel() [L511] COND TRUE \read(systemActive) [L513] CALL processEnvironment() [L533] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L536] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L551] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L513] RET processEnvironment() [L519] CALL __utac_acc__Specification2_spec__2() [L686] int tmp ; [L687] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L691] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); [L691] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L691] tmp = isMethaneLevelCritical() [L693] COND TRUE \read(tmp) [L695] CALL, EXPR isPumpRunning() [L603] int retValue_acc ; [L606] retValue_acc = pumpRunning [L607] return (retValue_acc); [L695] RET, EXPR isPumpRunning() [L695] tmp___0 = isPumpRunning() [L697] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L698] COND TRUE \read(methAndRunningLastTime) [L700] CALL __automaton_fail() [L854] reach_error() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 433 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 417 mSDsluCounter, 1686 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 997 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 483 IncrementalHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 689 mSDtfsCounter, 483 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 306 GetRequests, 263 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=404occurred in iteration=10, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 167 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 615 NumberOfCodeBlocks, 615 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 572 ConstructedInterpolants, 0 QuantifiedInterpolants, 1068 SizeOfPredicates, 5 NumberOfNonLiveVariables, 558 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 123/128 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 01:16:47,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e51c38-b578-457e-879f-87d1319cb236/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE