./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 2e4978c2419e4c1644022dd229f44f68c9d14c10177af084ee11ac932b0c1016 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:44:52,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:44:52,493 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:44:52,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:44:52,505 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:44:52,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:44:52,549 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:44:52,550 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:44:52,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:44:52,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:44:52,557 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:44:52,558 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:44:52,558 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:44:52,560 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:44:52,560 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:44:52,561 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:44:52,561 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:44:52,562 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:44:52,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:44:52,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:44:52,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:44:52,563 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:44:52,565 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:44:52,566 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:44:52,566 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:44:52,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:44:52,567 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:44:52,568 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:44:52,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:44:52,569 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:44:52,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:44:52,570 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:44:52,571 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:44:52,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:44:52,571 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:44:52,571 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:44:52,572 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:44:52,572 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:44:52,572 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:44:52,572 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_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e4978c2419e4c1644022dd229f44f68c9d14c10177af084ee11ac932b0c1016 [2023-11-06 22:44:52,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:44:52,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:44:52,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:44:52,953 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:44:52,953 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:44:52,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2023-11-06 22:44:56,043 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:44:56,270 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:44:56,271 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2023-11-06 22:44:56,295 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/data/c7ad5b1c2/f1b79f10931e49bd901c5cc295cd01d1/FLAGfcc4253d9 [2023-11-06 22:44:56,320 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/data/c7ad5b1c2/f1b79f10931e49bd901c5cc295cd01d1 [2023-11-06 22:44:56,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:44:56,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:44:56,334 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:44:56,334 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:44:56,340 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:44:56,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:56" (1/1) ... [2023-11-06 22:44:56,344 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab14d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56, skipping insertion in model container [2023-11-06 22:44:56,345 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:56" (1/1) ... [2023-11-06 22:44:56,423 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:44:56,718 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_75dfd1c8-8ee7-488e-b16c-066e387f4419/sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c[17041,17054] [2023-11-06 22:44:56,729 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:44:56,740 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:44:56,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [49] [2023-11-06 22:44:56,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [91] [2023-11-06 22:44:56,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [457] [2023-11-06 22:44:56,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [634] [2023-11-06 22:44:56,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [731] [2023-11-06 22:44:56,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [797] [2023-11-06 22:44:56,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [835] [2023-11-06 22:44:56,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [844] [2023-11-06 22:44:56,835 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_75dfd1c8-8ee7-488e-b16c-066e387f4419/sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c[17041,17054] [2023-11-06 22:44:56,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:44:56,875 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:44:56,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56 WrapperNode [2023-11-06 22:44:56,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:44:56,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:44:56,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:44:56,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:44:56,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2023-11-06 22:44:56,917 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2023-11-06 22:44:56,945 INFO L138 Inliner]: procedures = 54, calls = 96, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 189 [2023-11-06 22:44:56,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:44:56,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:44:56,946 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:44:56,946 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:44:56,956 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2023-11-06 22:44:56,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2023-11-06 22:44:56,959 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2023-11-06 22:44:56,971 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2023-11-06 22:44:56,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2023-11-06 22:44:56,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2023-11-06 22:44:56,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2023-11-06 22:44:56,996 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2023-11-06 22:44:56,999 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:44:57,013 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:44:57,013 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:44:57,014 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:44:57,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (1/1) ... [2023-11-06 22:44:57,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:44:57,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:57,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:44:57,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:44:57,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:44:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-06 22:44:57,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-06 22:44:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-06 22:44:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-06 22:44:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-06 22:44:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-06 22:44:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-06 22:44:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-06 22:44:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-06 22:44:57,108 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-06 22:44:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:44:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-06 22:44:57,108 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-06 22:44:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:44:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:44:57,230 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:44:57,233 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:44:57,561 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:44:57,569 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:44:57,570 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:44:57,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:57 BoogieIcfgContainer [2023-11-06 22:44:57,572 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:44:57,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:44:57,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:44:57,579 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:44:57,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:44:56" (1/3) ... [2023-11-06 22:44:57,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8d345c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:57, skipping insertion in model container [2023-11-06 22:44:57,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:56" (2/3) ... [2023-11-06 22:44:57,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8d345c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:57, skipping insertion in model container [2023-11-06 22:44:57,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:57" (3/3) ... [2023-11-06 22:44:57,582 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2023-11-06 22:44:57,603 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:44:57,604 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:44:57,658 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:44:57,666 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=LoopsAndPotentialCycles, 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;@31258772, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:44:57,666 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:44:57,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 69 states have internal predecessors, (88), 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) [2023-11-06 22:44:57,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-06 22:44:57,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:57,683 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] [2023-11-06 22:44:57,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:44:57,690 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:57,690 INFO L85 PathProgramCache]: Analyzing trace with hash 728927255, now seen corresponding path program 1 times [2023-11-06 22:44:57,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:57,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388287358] [2023-11-06 22:44:57,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:57,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:57,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:44:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:57,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:57,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:57,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388287358] [2023-11-06 22:44:57,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388287358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:57,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:57,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:44:57,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101550537] [2023-11-06 22:44:57,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:57,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:44:57,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:57,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:44:57,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:44:57,998 INFO L87 Difference]: Start difference. First operand has 81 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 69 states have internal predecessors, (88), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2023-11-06 22:44:58,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:58,070 INFO L93 Difference]: Finished difference Result 153 states and 210 transitions. [2023-11-06 22:44:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:44:58,072 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 25 [2023-11-06 22:44:58,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:58,085 INFO L225 Difference]: With dead ends: 153 [2023-11-06 22:44:58,086 INFO L226 Difference]: Without dead ends: 72 [2023-11-06 22:44:58,091 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 [2023-11-06 22:44:58,097 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:58,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:44:58,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-06 22:44:58,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-11-06 22:44:58,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 61 states have internal predecessors, (74), 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) [2023-11-06 22:44:58,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 93 transitions. [2023-11-06 22:44:58,168 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 93 transitions. Word has length 25 [2023-11-06 22:44:58,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:58,170 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 93 transitions. [2023-11-06 22:44:58,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2023-11-06 22:44:58,170 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 93 transitions. [2023-11-06 22:44:58,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-06 22:44:58,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:58,176 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] [2023-11-06 22:44:58,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:44:58,178 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:44:58,180 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:58,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1592613902, now seen corresponding path program 1 times [2023-11-06 22:44:58,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:58,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688493101] [2023-11-06 22:44:58,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:58,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:58,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:44:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:58,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:58,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688493101] [2023-11-06 22:44:58,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688493101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:58,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:58,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:44:58,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948667700] [2023-11-06 22:44:58,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:58,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:58,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:58,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:58,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:58,418 INFO L87 Difference]: Start difference. First operand 72 states and 93 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-06 22:44:58,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:58,455 INFO L93 Difference]: Finished difference Result 109 states and 141 transitions. [2023-11-06 22:44:58,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:58,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 26 [2023-11-06 22:44:58,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:58,463 INFO L225 Difference]: With dead ends: 109 [2023-11-06 22:44:58,463 INFO L226 Difference]: Without dead ends: 63 [2023-11-06 22:44:58,466 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 [2023-11-06 22:44:58,468 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 12 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:58,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:44:58,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-06 22:44:58,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-06 22:44:58,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 50 states have (on average 1.34) internal successors, (67), 55 states have internal predecessors, (67), 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) [2023-11-06 22:44:58,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 81 transitions. [2023-11-06 22:44:58,486 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 81 transitions. Word has length 26 [2023-11-06 22:44:58,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:58,486 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 81 transitions. [2023-11-06 22:44:58,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-06 22:44:58,487 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 81 transitions. [2023-11-06 22:44:58,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-06 22:44:58,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:58,490 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] [2023-11-06 22:44:58,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:44:58,491 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:44:58,492 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:58,492 INFO L85 PathProgramCache]: Analyzing trace with hash -140844723, now seen corresponding path program 1 times [2023-11-06 22:44:58,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:58,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642142021] [2023-11-06 22:44:58,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:58,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:58,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:44:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:58,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:58,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:58,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642142021] [2023-11-06 22:44:58,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642142021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:58,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:58,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:44:58,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107742940] [2023-11-06 22:44:58,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:58,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:44:58,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:58,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:44:58,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:44:58,775 INFO L87 Difference]: Start difference. First operand 63 states and 81 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2023-11-06 22:44:58,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:58,912 INFO L93 Difference]: Finished difference Result 118 states and 155 transitions. [2023-11-06 22:44:58,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:44:58,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 30 [2023-11-06 22:44:58,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:58,914 INFO L225 Difference]: With dead ends: 118 [2023-11-06 22:44:58,915 INFO L226 Difference]: Without dead ends: 63 [2023-11-06 22:44:58,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:44:58,917 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:58,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 166 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:44:58,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-06 22:44:58,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-06 22:44:58,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 50 states have (on average 1.32) internal successors, (66), 55 states have internal predecessors, (66), 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) [2023-11-06 22:44:58,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2023-11-06 22:44:58,928 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 30 [2023-11-06 22:44:58,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:58,929 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2023-11-06 22:44:58,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2023-11-06 22:44:58,929 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2023-11-06 22:44:58,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-06 22:44:58,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:58,931 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, 1, 1, 1, 1] [2023-11-06 22:44:58,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:44:58,931 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:44:58,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:58,932 INFO L85 PathProgramCache]: Analyzing trace with hash 243646208, now seen corresponding path program 1 times [2023-11-06 22:44:58,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:58,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889975846] [2023-11-06 22:44:58,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:58,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:59,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:44:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:59,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 22:44:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:59,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:59,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:59,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889975846] [2023-11-06 22:44:59,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889975846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:59,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:59,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:44:59,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384756214] [2023-11-06 22:44:59,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:59,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:59,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:59,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:59,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:59,074 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-11-06 22:44:59,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:59,149 INFO L93 Difference]: Finished difference Result 158 states and 205 transitions. [2023-11-06 22:44:59,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:59,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 35 [2023-11-06 22:44:59,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:59,155 INFO L225 Difference]: With dead ends: 158 [2023-11-06 22:44:59,155 INFO L226 Difference]: Without dead ends: 103 [2023-11-06 22:44:59,158 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 [2023-11-06 22:44:59,162 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 53 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:59,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 140 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:44:59,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-06 22:44:59,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2023-11-06 22:44:59,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 79 states have (on average 1.3164556962025316) internal successors, (104), 86 states have internal predecessors, (104), 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) [2023-11-06 22:44:59,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 128 transitions. [2023-11-06 22:44:59,198 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 128 transitions. Word has length 35 [2023-11-06 22:44:59,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:59,199 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 128 transitions. [2023-11-06 22:44:59,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-11-06 22:44:59,200 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 128 transitions. [2023-11-06 22:44:59,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-06 22:44:59,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:59,205 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:59,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:44:59,206 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:44:59,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:59,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1746897546, now seen corresponding path program 1 times [2023-11-06 22:44:59,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:59,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563960665] [2023-11-06 22:44:59,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:59,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:59,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:44:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:59,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-06 22:44:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:59,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:59,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:59,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563960665] [2023-11-06 22:44:59,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563960665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:59,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:59,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:44:59,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146933042] [2023-11-06 22:44:59,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:59,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:44:59,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:59,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:44:59,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:44:59,346 INFO L87 Difference]: Start difference. First operand 101 states and 128 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2023-11-06 22:44:59,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:59,392 INFO L93 Difference]: Finished difference Result 231 states and 303 transitions. [2023-11-06 22:44:59,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:44:59,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 41 [2023-11-06 22:44:59,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:59,395 INFO L225 Difference]: With dead ends: 231 [2023-11-06 22:44:59,395 INFO L226 Difference]: Without dead ends: 138 [2023-11-06 22:44:59,396 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 [2023-11-06 22:44:59,397 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 27 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:59,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 256 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:44:59,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-06 22:44:59,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 103. [2023-11-06 22:44:59,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 81 states have (on average 1.308641975308642) internal successors, (106), 88 states have internal predecessors, (106), 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) [2023-11-06 22:44:59,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 130 transitions. [2023-11-06 22:44:59,418 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 130 transitions. Word has length 41 [2023-11-06 22:44:59,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:59,418 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 130 transitions. [2023-11-06 22:44:59,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2023-11-06 22:44:59,419 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 130 transitions. [2023-11-06 22:44:59,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-06 22:44:59,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:59,421 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:59,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:44:59,421 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:44:59,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:59,422 INFO L85 PathProgramCache]: Analyzing trace with hash -859126008, now seen corresponding path program 1 times [2023-11-06 22:44:59,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:59,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944808823] [2023-11-06 22:44:59,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:59,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:59,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:44:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:59,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-06 22:44:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:59,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:59,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:59,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944808823] [2023-11-06 22:44:59,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944808823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:59,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:59,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:44:59,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394237366] [2023-11-06 22:44:59,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:59,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:44:59,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:59,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:44:59,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:44:59,528 INFO L87 Difference]: Start difference. First operand 103 states and 130 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:44:59,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:59,585 INFO L93 Difference]: Finished difference Result 201 states and 257 transitions. [2023-11-06 22:44:59,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:44:59,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2023-11-06 22:44:59,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:59,587 INFO L225 Difference]: With dead ends: 201 [2023-11-06 22:44:59,587 INFO L226 Difference]: Without dead ends: 106 [2023-11-06 22:44:59,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:44:59,589 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 41 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:59,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 303 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:44:59,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-06 22:44:59,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2023-11-06 22:44:59,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.2875) internal successors, (103), 87 states have internal predecessors, (103), 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) [2023-11-06 22:44:59,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions. [2023-11-06 22:44:59,606 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 41 [2023-11-06 22:44:59,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:59,606 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions. [2023-11-06 22:44:59,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:44:59,607 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions. [2023-11-06 22:44:59,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-06 22:44:59,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:59,608 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2023-11-06 22:44:59,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:44:59,609 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:44:59,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:59,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1092647987, now seen corresponding path program 1 times [2023-11-06 22:44:59,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:59,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240343899] [2023-11-06 22:44:59,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:59,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:59,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:44:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:59,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-06 22:44:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:59,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:44:59,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:59,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240343899] [2023-11-06 22:44:59,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240343899] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:59,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:59,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:44:59,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686348065] [2023-11-06 22:44:59,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:59,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:44:59,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:59,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:44:59,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:44:59,745 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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) [2023-11-06 22:44:59,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:59,803 INFO L93 Difference]: Finished difference Result 211 states and 270 transitions. [2023-11-06 22:44:59,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:44:59,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 47 [2023-11-06 22:44:59,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:59,807 INFO L225 Difference]: With dead ends: 211 [2023-11-06 22:44:59,807 INFO L226 Difference]: Without dead ends: 117 [2023-11-06 22:44:59,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:44:59,810 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 13 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:59,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 340 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:44:59,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-06 22:44:59,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 105. [2023-11-06 22:44:59,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 90 states have internal predecessors, (106), 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) [2023-11-06 22:44:59,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 130 transitions. [2023-11-06 22:44:59,828 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 130 transitions. Word has length 47 [2023-11-06 22:44:59,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:59,828 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 130 transitions. [2023-11-06 22:44:59,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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) [2023-11-06 22:44:59,829 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 130 transitions. [2023-11-06 22:44:59,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-06 22:44:59,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:59,831 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2023-11-06 22:44:59,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:44:59,831 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:44:59,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:59,832 INFO L85 PathProgramCache]: Analyzing trace with hash 971128657, now seen corresponding path program 1 times [2023-11-06 22:44:59,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:59,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692102112] [2023-11-06 22:44:59,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:59,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:59,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:44:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:59,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-06 22:44:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:59,927 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:44:59,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:59,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692102112] [2023-11-06 22:44:59,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692102112] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:59,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:59,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:44:59,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114428522] [2023-11-06 22:44:59,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:59,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:59,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:59,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:59,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:59,930 INFO L87 Difference]: Start difference. First operand 105 states and 130 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2023-11-06 22:44:59,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:59,959 INFO L93 Difference]: Finished difference Result 243 states and 305 transitions. [2023-11-06 22:44:59,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:59,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 47 [2023-11-06 22:44:59,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:59,962 INFO L225 Difference]: With dead ends: 243 [2023-11-06 22:44:59,962 INFO L226 Difference]: Without dead ends: 146 [2023-11-06 22:44:59,963 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 [2023-11-06 22:44:59,964 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 34 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:59,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 146 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:44:59,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-06 22:44:59,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2023-11-06 22:44:59,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 115 states have (on average 1.2521739130434784) internal successors, (144), 123 states have internal predecessors, (144), 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) [2023-11-06 22:44:59,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 178 transitions. [2023-11-06 22:44:59,985 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 178 transitions. Word has length 47 [2023-11-06 22:44:59,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:59,985 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 178 transitions. [2023-11-06 22:44:59,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2023-11-06 22:44:59,986 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 178 transitions. [2023-11-06 22:44:59,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-06 22:44:59,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:59,988 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:59,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:44:59,988 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:44:59,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:59,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1356661239, now seen corresponding path program 1 times [2023-11-06 22:44:59,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:59,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170734878] [2023-11-06 22:44:59,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:59,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:00,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:45:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:00,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-06 22:45:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:00,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-06 22:45:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:00,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:45:00,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:00,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170734878] [2023-11-06 22:45:00,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170734878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:00,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:00,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:45:00,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850236731] [2023-11-06 22:45:00,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:00,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:45:00,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:00,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:45:00,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:45:00,176 INFO L87 Difference]: Start difference. First operand 146 states and 178 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 22:45:00,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:00,831 INFO L93 Difference]: Finished difference Result 543 states and 687 transitions. [2023-11-06 22:45:00,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-06 22:45:00,832 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2023-11-06 22:45:00,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:00,843 INFO L225 Difference]: With dead ends: 543 [2023-11-06 22:45:00,844 INFO L226 Difference]: Without dead ends: 405 [2023-11-06 22:45:00,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=178, Invalid=944, Unknown=0, NotChecked=0, Total=1122 [2023-11-06 22:45:00,848 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 205 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:00,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 544 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:45:00,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2023-11-06 22:45:00,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 351. [2023-11-06 22:45:00,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 276 states have (on average 1.213768115942029) internal successors, (335), 295 states have internal predecessors, (335), 40 states have call successors, (40), 30 states have call predecessors, (40), 34 states have return successors, (55), 38 states have call predecessors, (55), 40 states have call successors, (55) [2023-11-06 22:45:00,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 430 transitions. [2023-11-06 22:45:00,930 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 430 transitions. Word has length 51 [2023-11-06 22:45:00,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:00,932 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 430 transitions. [2023-11-06 22:45:00,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 22:45:00,933 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 430 transitions. [2023-11-06 22:45:00,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-06 22:45:00,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:00,941 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:00,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:45:00,942 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:45:00,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:00,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1383190294, now seen corresponding path program 1 times [2023-11-06 22:45:00,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:00,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113864858] [2023-11-06 22:45:00,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:00,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:01,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:45:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:01,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:45:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:01,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-06 22:45:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:01,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:45:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:01,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:45:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:01,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:45:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:01,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-06 22:45:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:01,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 22:45:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:01,315 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-06 22:45:01,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:01,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113864858] [2023-11-06 22:45:01,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113864858] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:45:01,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047008139] [2023-11-06 22:45:01,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:01,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:45:01,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:45:01,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:45:01,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:45:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:01,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:45:01,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:45:01,692 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-06 22:45:01,692 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:45:01,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047008139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:01,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:45:01,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 18 [2023-11-06 22:45:01,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535968662] [2023-11-06 22:45:01,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:01,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:45:01,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:01,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:45:01,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:45:01,695 INFO L87 Difference]: Start difference. First operand 351 states and 430 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-06 22:45:01,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:01,875 INFO L93 Difference]: Finished difference Result 714 states and 877 transitions. [2023-11-06 22:45:01,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:45:01,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 87 [2023-11-06 22:45:01,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:01,879 INFO L225 Difference]: With dead ends: 714 [2023-11-06 22:45:01,879 INFO L226 Difference]: Without dead ends: 371 [2023-11-06 22:45:01,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:45:01,881 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 58 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:01,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 498 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:45:01,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-11-06 22:45:01,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 343. [2023-11-06 22:45:01,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 270 states have (on average 1.2) internal successors, (324), 289 states have internal predecessors, (324), 39 states have call successors, (39), 30 states have call predecessors, (39), 33 states have return successors, (47), 37 states have call predecessors, (47), 39 states have call successors, (47) [2023-11-06 22:45:01,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 410 transitions. [2023-11-06 22:45:01,931 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 410 transitions. Word has length 87 [2023-11-06 22:45:01,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:01,931 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 410 transitions. [2023-11-06 22:45:01,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-06 22:45:01,932 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 410 transitions. [2023-11-06 22:45:01,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-06 22:45:01,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:01,934 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:01,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:45:02,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 22:45:02,140 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:45:02,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:02,141 INFO L85 PathProgramCache]: Analyzing trace with hash 2077328626, now seen corresponding path program 1 times [2023-11-06 22:45:02,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:02,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070613421] [2023-11-06 22:45:02,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:02,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:02,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:45:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:02,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:45:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:02,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:45:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:02,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:45:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:02,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:45:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:02,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-06 22:45:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:02,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-06 22:45:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:02,299 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 22:45:02,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:02,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070613421] [2023-11-06 22:45:02,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070613421] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:45:02,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868985527] [2023-11-06 22:45:02,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:02,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:45:02,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:45:02,301 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:45:02,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:45:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:02,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:45:02,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:45:02,504 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:45:02,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:45:02,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868985527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:02,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:45:02,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2023-11-06 22:45:02,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825158137] [2023-11-06 22:45:02,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:02,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:45:02,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:02,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:45:02,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:45:02,508 INFO L87 Difference]: Start difference. First operand 343 states and 410 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-06 22:45:02,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:02,587 INFO L93 Difference]: Finished difference Result 524 states and 639 transitions. [2023-11-06 22:45:02,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:45:02,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 83 [2023-11-06 22:45:02,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:02,596 INFO L225 Difference]: With dead ends: 524 [2023-11-06 22:45:02,597 INFO L226 Difference]: Without dead ends: 522 [2023-11-06 22:45:02,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:45:02,598 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 39 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:02,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 146 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:45:02,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-11-06 22:45:02,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 382. [2023-11-06 22:45:02,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 301 states have (on average 1.2159468438538206) internal successors, (366), 321 states have internal predecessors, (366), 43 states have call successors, (43), 34 states have call predecessors, (43), 37 states have return successors, (55), 41 states have call predecessors, (55), 43 states have call successors, (55) [2023-11-06 22:45:02,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 464 transitions. [2023-11-06 22:45:02,683 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 464 transitions. Word has length 83 [2023-11-06 22:45:02,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:02,686 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 464 transitions. [2023-11-06 22:45:02,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-06 22:45:02,686 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 464 transitions. [2023-11-06 22:45:02,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-06 22:45:02,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:02,693 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 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, 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] [2023-11-06 22:45:02,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:45:02,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-06 22:45:02,900 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:45:02,900 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:02,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1685387601, now seen corresponding path program 1 times [2023-11-06 22:45:02,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:02,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190019592] [2023-11-06 22:45:02,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:02,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:45:02,939 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:45:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:45:03,013 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:45:03,014 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:45:03,015 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:45:03,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:45:03,020 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:03,024 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:45:03,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:45:03 BoogieIcfgContainer [2023-11-06 22:45:03,135 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:45:03,135 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:45:03,135 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:45:03,136 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:45:03,136 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:57" (3/4) ... [2023-11-06 22:45:03,138 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-06 22:45:03,262 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:45:03,263 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:45:03,263 INFO L158 Benchmark]: Toolchain (without parser) took 6933.40ms. Allocated memory was 119.5MB in the beginning and 172.0MB in the end (delta: 52.4MB). Free memory was 75.0MB in the beginning and 111.2MB in the end (delta: -36.2MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2023-11-06 22:45:03,264 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 119.5MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:45:03,264 INFO L158 Benchmark]: CACSL2BoogieTranslator took 542.01ms. Allocated memory is still 119.5MB. Free memory was 74.5MB in the beginning and 55.2MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 22:45:03,264 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.49ms. Allocated memory is still 119.5MB. Free memory was 55.2MB in the beginning and 53.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:45:03,265 INFO L158 Benchmark]: Boogie Preprocessor took 66.41ms. Allocated memory is still 119.5MB. Free memory was 53.1MB in the beginning and 51.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:45:03,266 INFO L158 Benchmark]: RCFGBuilder took 559.24ms. Allocated memory was 119.5MB in the beginning and 172.0MB in the end (delta: 52.4MB). Free memory was 51.5MB in the beginning and 140.9MB in the end (delta: -89.5MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2023-11-06 22:45:03,266 INFO L158 Benchmark]: TraceAbstraction took 5559.70ms. Allocated memory is still 172.0MB. Free memory was 139.8MB in the beginning and 118.5MB in the end (delta: 21.3MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-11-06 22:45:03,267 INFO L158 Benchmark]: Witness Printer took 127.39ms. Allocated memory is still 172.0MB. Free memory was 118.5MB in the beginning and 111.2MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:45:03,270 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 119.5MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 542.01ms. Allocated memory is still 119.5MB. Free memory was 74.5MB in the beginning and 55.2MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.49ms. Allocated memory is still 119.5MB. Free memory was 55.2MB in the beginning and 53.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.41ms. Allocated memory is still 119.5MB. Free memory was 53.1MB in the beginning and 51.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 559.24ms. Allocated memory was 119.5MB in the beginning and 172.0MB in the end (delta: 52.4MB). Free memory was 51.5MB in the beginning and 140.9MB in the end (delta: -89.5MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5559.70ms. Allocated memory is still 172.0MB. Free memory was 139.8MB in the beginning and 118.5MB in the end (delta: 21.3MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Witness Printer took 127.39ms. Allocated memory is still 172.0MB. Free memory was 118.5MB in the beginning and 111.2MB 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,"Specification2_spec.i","") [49] - GenericResultAtLocation [Line: 91]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [91] - GenericResultAtLocation [Line: 457]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [457] - GenericResultAtLocation [Line: 634]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [634] - GenericResultAtLocation [Line: 731]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [731] - GenericResultAtLocation [Line: 797]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [797] - GenericResultAtLocation [Line: 835]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [835] - GenericResultAtLocation [Line: 844]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [844] * 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: 840]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L53] int methAndRunningLastTime ; [L261] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L465] int pumpRunning = 0; [L466] int systemActive = 1; [L638] int waterLevel = 1; [L639] int methaneLevelCritical = 0; [L845] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L919] int retValue_acc ; [L920] int tmp ; [L924] FCALL select_helpers() [L925] FCALL select_features() [L926] CALL, EXPR valid_product() [L827] int retValue_acc ; [L830] retValue_acc = 1 [L831] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L926] RET, EXPR valid_product() [L926] tmp = valid_product() [L928] COND TRUE \read(tmp) [L930] FCALL setup() [L931] CALL runTest() [L912] CALL __utac_acc__Specification2_spec__1() [L58] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L912] RET __utac_acc__Specification2_spec__1() [L913] CALL test() [L734] int splverifierCounter ; [L735] int tmp ; [L736] int tmp___0 ; [L737] int tmp___1 ; [L738] int tmp___2 ; [L741] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L743] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L745] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L751] tmp = __VERIFIER_nondet_int() [L753] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L755] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L656] COND TRUE waterLevel < 2 [L657] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L755] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L761] tmp___0 = __VERIFIER_nondet_int() [L763] 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] [L771] tmp___2 = __VERIFIER_nondet_int() [L773] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L786] 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] [L472] 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] [L479] COND TRUE \read(systemActive) [L481] CALL processEnvironment() [L501] 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] [L504] COND TRUE ! pumpRunning [L506] CALL, EXPR isHighWaterLevel() [L616] int retValue_acc ; [L617] int tmp ; [L618] int tmp___0 ; [L622] CALL, EXPR isHighWaterSensorDry() [L718] 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] [L721] COND FALSE !(waterLevel < 2) [L725] retValue_acc = 0 [L726] 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] [L622] RET, EXPR isHighWaterSensorDry() [L622] tmp = isHighWaterSensorDry() [L624] COND FALSE !(\read(tmp)) [L627] 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] [L629] retValue_acc = tmp___0 [L630] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L506] RET, EXPR isHighWaterLevel() [L506] tmp = isHighWaterLevel() [L508] COND TRUE \read(tmp) [L510] CALL activatePump() [L535] int tmp ; [L539] CALL, EXPR isMethaneAlarm() [L560] 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] [L564] 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] [L677] int retValue_acc ; [L680] retValue_acc = methaneLevelCritical [L681] 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] [L564] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L564] retValue_acc = isMethaneLevelCritical() [L566] 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] [L539] RET, EXPR isMethaneAlarm() [L539] tmp = isMethaneAlarm() [L541] COND FALSE !(\read(tmp)) [L545] CALL activatePump__wrappee__highWaterSensor() [L529] pumpRunning = 1 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] [L545] RET activatePump__wrappee__highWaterSensor() [L510] RET activatePump() [L481] RET processEnvironment() [L487] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] 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] [L68] 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] [L677] int retValue_acc ; [L680] retValue_acc = methaneLevelCritical [L681] 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=1, retValue_acc=0, systemActive=1, waterLevel=2] [L68] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L68] tmp = isMethaneLevelCritical() [L70] COND FALSE !(\read(tmp)) [L86] 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] [L487] RET __utac_acc__Specification2_spec__2() [L786] 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] [L743] 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] [L745] COND TRUE splverifierCounter < 4 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] [L751] tmp = __VERIFIER_nondet_int() [L753] 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] [L761] tmp___0 = __VERIFIER_nondet_int() [L763] 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=-2, tmp___2=1, waterLevel=2] [L765] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L668] COND FALSE !(\read(methaneLevelCritical)) [L671] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L765] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=1, waterLevel=2] [L771] tmp___2 = __VERIFIER_nondet_int() [L773] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=1, waterLevel=2] [L786] 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] [L472] COND TRUE \read(pumpRunning) [L474] CALL lowerWaterLevel() [L644] COND TRUE waterLevel > 0 [L645] 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] [L474] RET lowerWaterLevel() [L479] COND TRUE \read(systemActive) [L481] CALL processEnvironment() [L501] 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] [L504] 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] [L519] 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] [L481] RET processEnvironment() [L487] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] 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] [L68] 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] [L677] int retValue_acc ; [L680] retValue_acc = methaneLevelCritical [L681] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L68] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L68] tmp = isMethaneLevelCritical() [L70] COND TRUE \read(tmp) [L72] CALL, EXPR isPumpRunning() [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L72] RET, EXPR isPumpRunning() [L72] tmp___0 = isPumpRunning() [L74] 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] [L75] COND FALSE !(\read(methAndRunningLastTime)) [L80] 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] [L487] RET __utac_acc__Specification2_spec__2() [L786] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=1, waterLevel=1] [L743] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=1, waterLevel=1] [L745] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=1, waterLevel=1] [L751] tmp = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=1, waterLevel=1] [L761] tmp___0 = __VERIFIER_nondet_int() [L763] 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] [L771] tmp___2 = __VERIFIER_nondet_int() [L773] COND TRUE \read(tmp___2) 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] [L786] 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] [L472] COND TRUE \read(pumpRunning) [L474] CALL lowerWaterLevel() [L644] COND TRUE waterLevel > 0 [L645] 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] [L474] RET lowerWaterLevel() [L479] COND TRUE \read(systemActive) [L481] CALL processEnvironment() [L501] 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] [L504] 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] [L519] 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] [L481] RET processEnvironment() [L487] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] 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] [L68] 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] [L677] int retValue_acc ; [L680] retValue_acc = methaneLevelCritical [L681] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L68] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L68] tmp = isMethaneLevelCritical() [L70] COND TRUE \read(tmp) [L72] CALL, EXPR isPumpRunning() [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L72] RET, EXPR isPumpRunning() [L72] tmp___0 = isPumpRunning() [L74] 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] [L75] COND TRUE \read(methAndRunningLastTime) [L77] CALL __automaton_fail() [L840] 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, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 660 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 640 mSDsluCounter, 2785 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1793 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 498 IncrementalHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 992 mSDtfsCounter, 498 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 316 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=382occurred in iteration=11, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 275 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 797 NumberOfCodeBlocks, 797 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 670 ConstructedInterpolants, 0 QuantifiedInterpolants, 1168 SizeOfPredicates, 5 NumberOfNonLiveVariables, 608 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 114/121 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! [2023-11-06 22:45:03,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75dfd1c8-8ee7-488e-b16c-066e387f4419/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE