./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product62.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 894b9126919d6af09c0902d1c20b8183acfd3589fe20590a119ca487cf6e7a3f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:00:28,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:00:29,025 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 08:00:29,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:00:29,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:00:29,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:00:29,067 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:00:29,067 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:00:29,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:00:29,073 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:00:29,075 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:00:29,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:00:29,076 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:00:29,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:00:29,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:00:29,079 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:00:29,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:00:29,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:00:29,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:00:29,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:00:29,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:00:29,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:00:29,083 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:00:29,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:00:29,084 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:00:29,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:00:29,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:00:29,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:00:29,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:29,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:00:29,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:00:29,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:00:29,089 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:00:29,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:00:29,090 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:00:29,090 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:00:29,090 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:00:29,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:00:29,091 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:00:29,091 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_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 894b9126919d6af09c0902d1c20b8183acfd3589fe20590a119ca487cf6e7a3f [2023-11-19 08:00:29,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:00:29,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:00:29,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:00:29,489 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:00:29,489 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:00:29,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec4_product62.cil.c [2023-11-19 08:00:32,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:00:32,844 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:00:32,844 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/sv-benchmarks/c/product-lines/minepump_spec4_product62.cil.c [2023-11-19 08:00:32,860 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/data/0d9768665/571e5e930f684d8290a4a9a6860357cb/FLAGca0499eaf [2023-11-19 08:00:32,887 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/data/0d9768665/571e5e930f684d8290a4a9a6860357cb [2023-11-19 08:00:32,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:00:32,894 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:00:32,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:32,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:00:32,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:00:32,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:32" (1/1) ... [2023-11-19 08:00:32,907 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e99ea65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:32, skipping insertion in model container [2023-11-19 08:00:32,908 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:32" (1/1) ... [2023-11-19 08:00:32,964 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:00:33,138 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_45326f5d-e20d-463a-949d-14c30c47c902/sv-benchmarks/c/product-lines/minepump_spec4_product62.cil.c[1605,1618] [2023-11-19 08:00:33,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:33,340 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:00:33,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-11-19 08:00:33,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [58] [2023-11-19 08:00:33,357 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [130] [2023-11-19 08:00:33,357 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [388] [2023-11-19 08:00:33,357 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [415] [2023-11-19 08:00:33,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [453] [2023-11-19 08:00:33,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [549] [2023-11-19 08:00:33,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [915] [2023-11-19 08:00:33,364 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_45326f5d-e20d-463a-949d-14c30c47c902/sv-benchmarks/c/product-lines/minepump_spec4_product62.cil.c[1605,1618] [2023-11-19 08:00:33,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:33,482 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:00:33,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:33 WrapperNode [2023-11-19 08:00:33,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:33,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:33,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:00:33,486 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:00:33,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:33" (1/1) ... [2023-11-19 08:00:33,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:33" (1/1) ... [2023-11-19 08:00:33,563 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 239 [2023-11-19 08:00:33,563 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:33,564 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:00:33,564 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:00:33,564 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:00:33,576 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:33" (1/1) ... [2023-11-19 08:00:33,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:33" (1/1) ... [2023-11-19 08:00:33,591 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:33" (1/1) ... [2023-11-19 08:00:33,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:33" (1/1) ... [2023-11-19 08:00:33,604 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:33" (1/1) ... [2023-11-19 08:00:33,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:33" (1/1) ... [2023-11-19 08:00:33,616 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:33" (1/1) ... [2023-11-19 08:00:33,618 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:33" (1/1) ... [2023-11-19 08:00:33,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:00:33,623 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:00:33,631 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:00:33,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:00:33,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:33" (1/1) ... [2023-11-19 08:00:33,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:33,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:33,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:33,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:00:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 08:00:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 08:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 08:00:33,720 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 08:00:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 08:00:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 08:00:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 08:00:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 08:00:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 08:00:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 08:00:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-19 08:00:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-19 08:00:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-19 08:00:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-19 08:00:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-19 08:00:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-19 08:00:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:00:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 08:00:33,724 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 08:00:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:00:33,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:00:33,890 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:00:33,893 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:00:34,284 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:00:34,295 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:00:34,298 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:00:34,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:34 BoogieIcfgContainer [2023-11-19 08:00:34,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:00:34,311 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:00:34,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:00:34,314 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:00:34,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:00:32" (1/3) ... [2023-11-19 08:00:34,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5423b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:34, skipping insertion in model container [2023-11-19 08:00:34,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:33" (2/3) ... [2023-11-19 08:00:34,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5423b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:34, skipping insertion in model container [2023-11-19 08:00:34,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:34" (3/3) ... [2023-11-19 08:00:34,320 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product62.cil.c [2023-11-19 08:00:34,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:00:34,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:00:34,396 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:00:34,404 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@44270e80, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:00:34,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:00:34,415 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 87 states have internal predecessors, (106), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 08:00:34,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 08:00:34,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:34,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:34,425 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:34,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:34,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1971423540, now seen corresponding path program 1 times [2023-11-19 08:00:34,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:34,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201657369] [2023-11-19 08:00:34,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:34,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:34,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:34,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:34,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201657369] [2023-11-19 08:00:34,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201657369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:34,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:34,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:34,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137589408] [2023-11-19 08:00:34,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:34,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:00:34,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:34,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:00:34,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:00:34,673 INFO L87 Difference]: Start difference. First operand has 104 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 87 states have internal predecessors, (106), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:34,713 INFO L93 Difference]: Finished difference Result 200 states and 271 transitions. [2023-11-19 08:00:34,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:00:34,715 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-19 08:00:34,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:34,726 INFO L225 Difference]: With dead ends: 200 [2023-11-19 08:00:34,726 INFO L226 Difference]: Without dead ends: 95 [2023-11-19 08:00:34,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:00:34,735 INFO L413 NwaCegarLoop]: 132 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, 132 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 [2023-11-19 08:00:34,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:00:34,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-19 08:00:34,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-11-19 08:00:34,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 79 states have internal predecessors, (92), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 08:00:34,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 123 transitions. [2023-11-19 08:00:34,791 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 123 transitions. Word has length 19 [2023-11-19 08:00:34,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:34,792 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 123 transitions. [2023-11-19 08:00:34,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,793 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 123 transitions. [2023-11-19 08:00:34,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 08:00:34,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:34,796 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] [2023-11-19 08:00:34,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:00:34,797 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:34,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:34,799 INFO L85 PathProgramCache]: Analyzing trace with hash -856589602, now seen corresponding path program 1 times [2023-11-19 08:00:34,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:34,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855333220] [2023-11-19 08:00:34,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:34,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:34,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:34,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855333220] [2023-11-19 08:00:34,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855333220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:34,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:34,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:00:34,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988677814] [2023-11-19 08:00:34,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:34,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:34,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:34,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:34,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:34,994 INFO L87 Difference]: Start difference. First operand 95 states and 123 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:35,042 INFO L93 Difference]: Finished difference Result 155 states and 201 transitions. [2023-11-19 08:00:35,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:35,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-19 08:00:35,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:35,049 INFO L225 Difference]: With dead ends: 155 [2023-11-19 08:00:35,049 INFO L226 Difference]: Without dead ends: 86 [2023-11-19 08:00:35,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:35,054 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 13 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 203 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 [2023-11-19 08:00:35,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 203 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:00:35,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-19 08:00:35,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-19 08:00:35,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.328125) internal successors, (85), 73 states have internal predecessors, (85), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 08:00:35,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2023-11-19 08:00:35,070 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 20 [2023-11-19 08:00:35,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:35,071 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2023-11-19 08:00:35,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,071 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2023-11-19 08:00:35,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 08:00:35,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:35,073 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] [2023-11-19 08:00:35,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:00:35,074 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:35,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:35,075 INFO L85 PathProgramCache]: Analyzing trace with hash 2135542647, now seen corresponding path program 1 times [2023-11-19 08:00:35,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:35,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415044226] [2023-11-19 08:00:35,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:35,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:35,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:35,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:35,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415044226] [2023-11-19 08:00:35,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415044226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:35,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:35,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:00:35,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46865030] [2023-11-19 08:00:35,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:35,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:00:35,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:35,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:00:35,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:00:35,247 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:35,357 INFO L93 Difference]: Finished difference Result 165 states and 216 transitions. [2023-11-19 08:00:35,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:00:35,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-11-19 08:00:35,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:35,360 INFO L225 Difference]: With dead ends: 165 [2023-11-19 08:00:35,360 INFO L226 Difference]: Without dead ends: 86 [2023-11-19 08:00:35,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:00:35,365 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 136 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:35,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 280 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:00:35,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-19 08:00:35,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-19 08:00:35,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 73 states have internal predecessors, (84), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 08:00:35,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 110 transitions. [2023-11-19 08:00:35,398 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 110 transitions. Word has length 25 [2023-11-19 08:00:35,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:35,400 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 110 transitions. [2023-11-19 08:00:35,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,400 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 110 transitions. [2023-11-19 08:00:35,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 08:00:35,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:35,407 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] [2023-11-19 08:00:35,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:00:35,408 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:35,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:35,417 INFO L85 PathProgramCache]: Analyzing trace with hash -181443690, now seen corresponding path program 1 times [2023-11-19 08:00:35,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:35,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375242634] [2023-11-19 08:00:35,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:35,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:35,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 08:00:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:35,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 08:00:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:35,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:35,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:35,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375242634] [2023-11-19 08:00:35,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375242634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:35,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:35,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:00:35,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747493492] [2023-11-19 08:00:35,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:35,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:00:35,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:35,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:00:35,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:00:35,580 INFO L87 Difference]: Start difference. First operand 86 states and 110 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-19 08:00:35,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:35,891 INFO L93 Difference]: Finished difference Result 241 states and 309 transitions. [2023-11-19 08:00:35,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:00:35,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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 38 [2023-11-19 08:00:35,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:35,903 INFO L225 Difference]: With dead ends: 241 [2023-11-19 08:00:35,903 INFO L226 Difference]: Without dead ends: 162 [2023-11-19 08:00:35,908 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 [2023-11-19 08:00:35,919 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 169 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:35,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 188 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:00:35,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-19 08:00:35,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2023-11-19 08:00:35,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 119 states have (on average 1.26890756302521) internal successors, (151), 128 states have internal predecessors, (151), 16 states have call successors, (16), 15 states have call predecessors, (16), 20 states have return successors, (27), 18 states have call predecessors, (27), 16 states have call successors, (27) [2023-11-19 08:00:35,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 194 transitions. [2023-11-19 08:00:35,975 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 194 transitions. Word has length 38 [2023-11-19 08:00:35,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:35,976 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 194 transitions. [2023-11-19 08:00:35,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-19 08:00:35,977 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 194 transitions. [2023-11-19 08:00:35,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 08:00:35,983 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:35,986 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, 1, 1, 1, 1, 1] [2023-11-19 08:00:35,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:00:35,986 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:35,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:35,987 INFO L85 PathProgramCache]: Analyzing trace with hash -91120732, now seen corresponding path program 1 times [2023-11-19 08:00:35,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:35,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603925114] [2023-11-19 08:00:35,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:35,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:36,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 08:00:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:36,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:00:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:36,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 08:00:36,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:36,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:36,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:36,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603925114] [2023-11-19 08:00:36,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603925114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:36,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:36,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:36,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332228382] [2023-11-19 08:00:36,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:36,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:00:36,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:36,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:00:36,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:00:36,315 INFO L87 Difference]: Start difference. First operand 156 states and 194 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 08:00:37,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:37,013 INFO L93 Difference]: Finished difference Result 536 states and 718 transitions. [2023-11-19 08:00:37,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-19 08:00:37,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2023-11-19 08:00:37,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:37,026 INFO L225 Difference]: With dead ends: 536 [2023-11-19 08:00:37,027 INFO L226 Difference]: Without dead ends: 387 [2023-11-19 08:00:37,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2023-11-19 08:00:37,037 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 330 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:37,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 639 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 08:00:37,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-11-19 08:00:37,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 377. [2023-11-19 08:00:37,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 286 states have (on average 1.2377622377622377) internal successors, (354), 306 states have internal predecessors, (354), 40 states have call successors, (40), 38 states have call predecessors, (40), 50 states have return successors, (90), 46 states have call predecessors, (90), 40 states have call successors, (90) [2023-11-19 08:00:37,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 484 transitions. [2023-11-19 08:00:37,168 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 484 transitions. Word has length 46 [2023-11-19 08:00:37,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:37,168 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 484 transitions. [2023-11-19 08:00:37,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 08:00:37,170 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 484 transitions. [2023-11-19 08:00:37,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-19 08:00:37,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:37,181 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:37,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:00:37,181 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:37,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:37,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1499106522, now seen corresponding path program 1 times [2023-11-19 08:00:37,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:37,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065150887] [2023-11-19 08:00:37,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:37,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:37,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:00:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:37,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 08:00:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:37,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:00:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:37,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 08:00:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:37,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 08:00:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:37,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-19 08:00:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:37,490 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 08:00:37,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:37,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065150887] [2023-11-19 08:00:37,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065150887] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:37,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:37,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:00:37,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671649032] [2023-11-19 08:00:37,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:37,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:00:37,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:37,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:00:37,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:00:37,494 INFO L87 Difference]: Start difference. First operand 377 states and 484 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 08:00:37,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:37,870 INFO L93 Difference]: Finished difference Result 813 states and 1114 transitions. [2023-11-19 08:00:37,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:00:37,871 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 85 [2023-11-19 08:00:37,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:37,876 INFO L225 Difference]: With dead ends: 813 [2023-11-19 08:00:37,876 INFO L226 Difference]: Without dead ends: 443 [2023-11-19 08:00:37,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:37,879 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 143 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:37,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 289 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:00:37,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-19 08:00:37,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 414. [2023-11-19 08:00:37,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 316 states have (on average 1.2278481012658229) internal successors, (388), 340 states have internal predecessors, (388), 43 states have call successors, (43), 38 states have call predecessors, (43), 54 states have return successors, (102), 49 states have call predecessors, (102), 43 states have call successors, (102) [2023-11-19 08:00:37,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 533 transitions. [2023-11-19 08:00:37,936 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 533 transitions. Word has length 85 [2023-11-19 08:00:37,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:37,936 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 533 transitions. [2023-11-19 08:00:37,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 08:00:37,937 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 533 transitions. [2023-11-19 08:00:37,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-19 08:00:37,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:37,940 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:37,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:00:37,941 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:37,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:37,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1425329636, now seen corresponding path program 1 times [2023-11-19 08:00:37,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:37,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123598137] [2023-11-19 08:00:37,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:37,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 08:00:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 08:00:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 08:00:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:00:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 08:00:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 08:00:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-19 08:00:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 08:00:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,254 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 08:00:38,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:38,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123598137] [2023-11-19 08:00:38,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123598137] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:38,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:38,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:38,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007259885] [2023-11-19 08:00:38,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:38,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:00:38,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:38,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:00:38,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:00:38,258 INFO L87 Difference]: Start difference. First operand 414 states and 533 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 08:00:38,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:38,661 INFO L93 Difference]: Finished difference Result 790 states and 1047 transitions. [2023-11-19 08:00:38,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 08:00:38,662 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 93 [2023-11-19 08:00:38,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:38,665 INFO L225 Difference]: With dead ends: 790 [2023-11-19 08:00:38,665 INFO L226 Difference]: Without dead ends: 383 [2023-11-19 08:00:38,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-19 08:00:38,668 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 270 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:38,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 308 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:00:38,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2023-11-19 08:00:38,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 368. [2023-11-19 08:00:38,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 280 states have (on average 1.2142857142857142) internal successors, (340), 301 states have internal predecessors, (340), 40 states have call successors, (40), 33 states have call predecessors, (40), 47 states have return successors, (86), 44 states have call predecessors, (86), 40 states have call successors, (86) [2023-11-19 08:00:38,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 466 transitions. [2023-11-19 08:00:38,714 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 466 transitions. Word has length 93 [2023-11-19 08:00:38,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:38,715 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 466 transitions. [2023-11-19 08:00:38,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 08:00:38,715 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 466 transitions. [2023-11-19 08:00:38,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 08:00:38,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:38,717 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:38,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:00:38,718 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:38,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:38,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1438943688, now seen corresponding path program 1 times [2023-11-19 08:00:38,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:38,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439653323] [2023-11-19 08:00:38,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:38,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 08:00:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 08:00:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 08:00:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:00:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 08:00:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 08:00:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-19 08:00:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,906 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 08:00:38,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:38,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439653323] [2023-11-19 08:00:38,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439653323] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:00:38,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771608759] [2023-11-19 08:00:38,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:38,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:00:38,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:38,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:00:38,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:00:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:39,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 08:00:39,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:39,305 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:39,305 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:00:39,516 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:00:39,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771608759] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:00:39,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:00:39,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 12 [2023-11-19 08:00:39,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582745299] [2023-11-19 08:00:39,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:00:39,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 08:00:39,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:39,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 08:00:39,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-19 08:00:39,519 INFO L87 Difference]: Start difference. First operand 368 states and 466 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 9 states have internal predecessors, (116), 3 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-19 08:00:41,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:41,105 INFO L93 Difference]: Finished difference Result 813 states and 1099 transitions. [2023-11-19 08:00:41,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-19 08:00:41,106 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 9 states have internal predecessors, (116), 3 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 89 [2023-11-19 08:00:41,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:41,110 INFO L225 Difference]: With dead ends: 813 [2023-11-19 08:00:41,110 INFO L226 Difference]: Without dead ends: 500 [2023-11-19 08:00:41,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 198 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=481, Invalid=2275, Unknown=0, NotChecked=0, Total=2756 [2023-11-19 08:00:41,114 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 752 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:41,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 638 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 08:00:41,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2023-11-19 08:00:41,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 434. [2023-11-19 08:00:41,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 328 states have (on average 1.2103658536585367) internal successors, (397), 352 states have internal predecessors, (397), 51 states have call successors, (51), 44 states have call predecessors, (51), 54 states have return successors, (111), 50 states have call predecessors, (111), 51 states have call successors, (111) [2023-11-19 08:00:41,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 559 transitions. [2023-11-19 08:00:41,162 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 559 transitions. Word has length 89 [2023-11-19 08:00:41,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:41,163 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 559 transitions. [2023-11-19 08:00:41,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 9 states have internal predecessors, (116), 3 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-19 08:00:41,164 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 559 transitions. [2023-11-19 08:00:41,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-19 08:00:41,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:41,167 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 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] [2023-11-19 08:00:41,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:41,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:00:41,381 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:41,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:41,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1270234994, now seen corresponding path program 1 times [2023-11-19 08:00:41,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:41,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502471070] [2023-11-19 08:00:41,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:41,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 08:00:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 08:00:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 08:00:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:00:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 08:00:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 08:00:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 08:00:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 08:00:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 08:00:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:00:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-19 08:00:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-19 08:00:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 08:00:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:00:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,996 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 52 proven. 23 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 08:00:41,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:41,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502471070] [2023-11-19 08:00:41,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502471070] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:00:41,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105943826] [2023-11-19 08:00:41,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:41,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:00:41,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:41,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:00:42,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 08:00:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:42,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 08:00:42,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:42,404 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 88 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 08:00:42,405 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:00:42,717 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 53 proven. 23 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-19 08:00:42,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105943826] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:00:42,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:00:42,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 17 [2023-11-19 08:00:42,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885961282] [2023-11-19 08:00:42,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:00:42,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-19 08:00:42,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:42,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-19 08:00:42,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-11-19 08:00:42,723 INFO L87 Difference]: Start difference. First operand 434 states and 559 transitions. Second operand has 17 states, 17 states have (on average 8.941176470588236) internal successors, (152), 15 states have internal predecessors, (152), 6 states have call successors, (33), 9 states have call predecessors, (33), 6 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-19 08:00:44,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:44,077 INFO L93 Difference]: Finished difference Result 1193 states and 1627 transitions. [2023-11-19 08:00:44,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-19 08:00:44,078 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.941176470588236) internal successors, (152), 15 states have internal predecessors, (152), 6 states have call successors, (33), 9 states have call predecessors, (33), 6 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) Word has length 150 [2023-11-19 08:00:44,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:44,085 INFO L225 Difference]: With dead ends: 1193 [2023-11-19 08:00:44,085 INFO L226 Difference]: Without dead ends: 813 [2023-11-19 08:00:44,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 330 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=380, Invalid=1102, Unknown=0, NotChecked=0, Total=1482 [2023-11-19 08:00:44,091 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 512 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:44,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 912 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 08:00:44,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2023-11-19 08:00:44,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 710. [2023-11-19 08:00:44,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 533 states have (on average 1.2026266416510318) internal successors, (641), 565 states have internal predecessors, (641), 83 states have call successors, (83), 76 states have call predecessors, (83), 93 states have return successors, (177), 85 states have call predecessors, (177), 83 states have call successors, (177) [2023-11-19 08:00:44,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 901 transitions. [2023-11-19 08:00:44,178 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 901 transitions. Word has length 150 [2023-11-19 08:00:44,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:44,180 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 901 transitions. [2023-11-19 08:00:44,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.941176470588236) internal successors, (152), 15 states have internal predecessors, (152), 6 states have call successors, (33), 9 states have call predecessors, (33), 6 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-19 08:00:44,180 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 901 transitions. [2023-11-19 08:00:44,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-19 08:00:44,187 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:44,188 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:44,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:44,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:00:44,408 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:44,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:44,409 INFO L85 PathProgramCache]: Analyzing trace with hash -2070792144, now seen corresponding path program 1 times [2023-11-19 08:00:44,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:44,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511594839] [2023-11-19 08:00:44,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:44,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 08:00:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 08:00:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 08:00:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:00:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 08:00:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 08:00:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 08:00:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 08:00:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 08:00:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:00:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-19 08:00:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-19 08:00:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 08:00:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:00:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,670 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-19 08:00:44,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:44,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511594839] [2023-11-19 08:00:44,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511594839] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:00:44,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529796353] [2023-11-19 08:00:44,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:44,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:00:44,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:44,673 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:00:44,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 08:00:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:00:44,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:44,828 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-19 08:00:44,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:00:44,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529796353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:44,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:00:44,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 8 [2023-11-19 08:00:44,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653877146] [2023-11-19 08:00:44,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:44,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:00:44,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:44,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:00:44,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:00:44,831 INFO L87 Difference]: Start difference. First operand 710 states and 901 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 08:00:44,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:44,892 INFO L93 Difference]: Finished difference Result 942 states and 1183 transitions. [2023-11-19 08:00:44,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:00:44,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 150 [2023-11-19 08:00:44,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:44,894 INFO L225 Difference]: With dead ends: 942 [2023-11-19 08:00:44,894 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 08:00:44,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:00:44,898 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 6 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 416 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 [2023-11-19 08:00:44,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 416 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:00:44,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 08:00:44,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 08:00:44,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:44,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 08:00:44,900 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2023-11-19 08:00:44,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:44,900 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:00:44,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 08:00:44,901 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 08:00:44,901 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 08:00:44,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 08:00:44,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-19 08:00:45,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 08:00:45,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 08:00:46,354 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 278 285) no Hoare annotation was computed. [2023-11-19 08:00:46,355 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 278 285) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-11-19 08:00:46,355 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 278 285) no Hoare annotation was computed. [2023-11-19 08:00:46,355 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 168 174) no Hoare annotation was computed. [2023-11-19 08:00:46,355 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 168 174) the Hoare annotation is: true [2023-11-19 08:00:46,355 INFO L899 garLoopResultBuilder]: For program point L946-1(lines 942 953) no Hoare annotation was computed. [2023-11-19 08:00:46,355 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 942 953) the Hoare annotation is: true [2023-11-19 08:00:46,356 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 942 953) no Hoare annotation was computed. [2023-11-19 08:00:46,356 INFO L899 garLoopResultBuilder]: For program point L480(lines 455 484) no Hoare annotation was computed. [2023-11-19 08:00:46,356 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 455 484) no Hoare annotation was computed. [2023-11-19 08:00:46,356 INFO L899 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2023-11-19 08:00:46,356 INFO L899 garLoopResultBuilder]: For program point L469(lines 469 473) no Hoare annotation was computed. [2023-11-19 08:00:46,356 INFO L902 garLoopResultBuilder]: At program point L469-1(lines 469 473) the Hoare annotation is: true [2023-11-19 08:00:46,356 INFO L899 garLoopResultBuilder]: For program point L466(line 466) no Hoare annotation was computed. [2023-11-19 08:00:46,356 INFO L902 garLoopResultBuilder]: At program point L465-2(lines 465 479) the Hoare annotation is: true [2023-11-19 08:00:46,356 INFO L902 garLoopResultBuilder]: At program point L461(line 461) the Hoare annotation is: true [2023-11-19 08:00:46,356 INFO L899 garLoopResultBuilder]: For program point L461-1(line 461) no Hoare annotation was computed. [2023-11-19 08:00:46,356 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 455 484) the Hoare annotation is: true [2023-11-19 08:00:46,357 INFO L899 garLoopResultBuilder]: For program point L155-1(lines 155 161) no Hoare annotation was computed. [2023-11-19 08:00:46,357 INFO L895 garLoopResultBuilder]: At program point L242(line 242) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< |old(~waterLevel~0)| 2) .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) .cse0))) [2023-11-19 08:00:46,357 INFO L895 garLoopResultBuilder]: At program point L238(line 238) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< |old(~waterLevel~0)| 2) .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) .cse0))) [2023-11-19 08:00:46,357 INFO L895 garLoopResultBuilder]: At program point L234(line 234) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< |old(~waterLevel~0)| 2) .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) .cse0))) [2023-11-19 08:00:46,357 INFO L899 garLoopResultBuilder]: For program point L234-1(line 234) no Hoare annotation was computed. [2023-11-19 08:00:46,357 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 144 167) no Hoare annotation was computed. [2023-11-19 08:00:46,358 INFO L895 garLoopResultBuilder]: At program point L247(line 247) the Hoare annotation is: (let ((.cse0 (< |old(~waterLevel~0)| 2)) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or (and .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse2) (or (not .cse1) (not (= |old(~waterLevel~0)| 1)) (and .cse3 (= ~waterLevel~0 1)) .cse2))) [2023-11-19 08:00:46,358 INFO L899 garLoopResultBuilder]: For program point L247-1(lines 228 252) no Hoare annotation was computed. [2023-11-19 08:00:46,358 INFO L899 garLoopResultBuilder]: For program point getWaterLevel_returnLabel#1(lines 986 994) no Hoare annotation was computed. [2023-11-19 08:00:46,358 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 147 166) no Hoare annotation was computed. [2023-11-19 08:00:46,358 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-11-19 08:00:46,358 INFO L899 garLoopResultBuilder]: For program point L236(lines 236 244) no Hoare annotation was computed. [2023-11-19 08:00:46,358 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 50 57) no Hoare annotation was computed. [2023-11-19 08:00:46,358 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 144 167) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1)) .cse0))) [2023-11-19 08:00:46,358 INFO L899 garLoopResultBuilder]: For program point L232(lines 232 249) no Hoare annotation was computed. [2023-11-19 08:00:46,358 INFO L899 garLoopResultBuilder]: For program point L922(lines 922 926) no Hoare annotation was computed. [2023-11-19 08:00:46,359 INFO L899 garLoopResultBuilder]: For program point L922-2(lines 918 929) no Hoare annotation was computed. [2023-11-19 08:00:46,359 INFO L899 garLoopResultBuilder]: For program point L402(lines 402 408) no Hoare annotation was computed. [2023-11-19 08:00:46,359 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 411) no Hoare annotation was computed. [2023-11-19 08:00:46,359 INFO L899 garLoopResultBuilder]: For program point L398-1(lines 390 414) no Hoare annotation was computed. [2023-11-19 08:00:46,359 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 144 167) no Hoare annotation was computed. [2023-11-19 08:00:46,359 INFO L899 garLoopResultBuilder]: For program point isPumpRunning_returnLabel#1(lines 297 305) no Hoare annotation was computed. [2023-11-19 08:00:46,359 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-11-19 08:00:46,359 INFO L899 garLoopResultBuilder]: For program point startSystem_returnLabel#1(lines 380 387) no Hoare annotation was computed. [2023-11-19 08:00:46,359 INFO L895 garLoopResultBuilder]: At program point L122(lines 73 123) the Hoare annotation is: false [2023-11-19 08:00:46,359 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 516 525) no Hoare annotation was computed. [2023-11-19 08:00:46,359 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 430 436) no Hoare annotation was computed. [2023-11-19 08:00:46,360 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 526 548) no Hoare annotation was computed. [2023-11-19 08:00:46,360 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 08:00:46,360 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 100) no Hoare annotation was computed. [2023-11-19 08:00:46,360 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 94 100) no Hoare annotation was computed. [2023-11-19 08:00:46,360 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 08:00:46,360 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 543) no Hoare annotation was computed. [2023-11-19 08:00:46,360 INFO L895 garLoopResultBuilder]: At program point L119(lines 74 121) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (= ~waterLevel~0 1) .cse3))) [2023-11-19 08:00:46,360 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (= ~waterLevel~0 1) .cse3))) [2023-11-19 08:00:46,360 INFO L899 garLoopResultBuilder]: For program point L536-2(lines 536 543) no Hoare annotation was computed. [2023-11-19 08:00:46,361 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 509 515) no Hoare annotation was computed. [2023-11-19 08:00:46,361 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 08:00:46,364 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 116) no Hoare annotation was computed. [2023-11-19 08:00:46,365 INFO L895 garLoopResultBuilder]: At program point L112-2(lines 104 117) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (= ~waterLevel~0 1) .cse3))) [2023-11-19 08:00:46,365 INFO L899 garLoopResultBuilder]: For program point L75(lines 74 121) no Hoare annotation was computed. [2023-11-19 08:00:46,365 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 08:00:46,365 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 437 443) no Hoare annotation was computed. [2023-11-19 08:00:46,365 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 117) no Hoare annotation was computed. [2023-11-19 08:00:46,365 INFO L895 garLoopResultBuilder]: At program point L96(line 96) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (= ~waterLevel~0 1) .cse3))) [2023-11-19 08:00:46,365 INFO L899 garLoopResultBuilder]: For program point L125(lines 64 129) no Hoare annotation was computed. [2023-11-19 08:00:46,365 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 90) no Hoare annotation was computed. [2023-11-19 08:00:46,366 INFO L899 garLoopResultBuilder]: For program point L84-1(lines 84 90) no Hoare annotation was computed. [2023-11-19 08:00:46,366 INFO L899 garLoopResultBuilder]: For program point L76(lines 76 80) no Hoare annotation was computed. [2023-11-19 08:00:46,366 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 444 452) no Hoare annotation was computed. [2023-11-19 08:00:46,366 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 355) no Hoare annotation was computed. [2023-11-19 08:00:46,366 INFO L895 garLoopResultBuilder]: At program point L190(line 190) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))) (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (and .cse0 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) .cse1) (and .cse0 (<= 2 ~waterLevel~0) .cse1) (= 0 ~systemActive~0))) [2023-11-19 08:00:46,366 INFO L899 garLoopResultBuilder]: For program point L351-2(lines 351 355) no Hoare annotation was computed. [2023-11-19 08:00:46,366 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 192) no Hoare annotation was computed. [2023-11-19 08:00:46,366 INFO L899 garLoopResultBuilder]: For program point L180(lines 180 197) no Hoare annotation was computed. [2023-11-19 08:00:46,367 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 176 200) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-11-19 08:00:46,367 INFO L895 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-11-19 08:00:46,367 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 995 1008) no Hoare annotation was computed. [2023-11-19 08:00:46,367 INFO L899 garLoopResultBuilder]: For program point L195-1(lines 176 200) no Hoare annotation was computed. [2023-11-19 08:00:46,367 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 342 360) no Hoare annotation was computed. [2023-11-19 08:00:46,367 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 176 200) no Hoare annotation was computed. [2023-11-19 08:00:46,367 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 274) no Hoare annotation was computed. [2023-11-19 08:00:46,367 INFO L895 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0)) (= 0 ~systemActive~0)) [2023-11-19 08:00:46,367 INFO L899 garLoopResultBuilder]: For program point L268-2(lines 261 277) no Hoare annotation was computed. [2023-11-19 08:00:46,368 INFO L899 garLoopResultBuilder]: For program point L266-1(line 266) no Hoare annotation was computed. [2023-11-19 08:00:46,368 INFO L899 garLoopResultBuilder]: For program point L999(lines 999 1005) no Hoare annotation was computed. [2023-11-19 08:00:46,368 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__lowWaterSensor_returnLabel#1(lines 253 260) no Hoare annotation was computed. [2023-11-19 08:00:46,368 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 930 941) no Hoare annotation was computed. [2023-11-19 08:00:46,368 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 930 941) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (and (or (< |old(~waterLevel~0)| 2) .cse0 .cse1) (or (< |old(~waterLevel~0)| 1) (not (= ~pumpRunning~0 0)) .cse0 .cse1))) [2023-11-19 08:00:46,368 INFO L899 garLoopResultBuilder]: For program point L934-1(lines 930 941) no Hoare annotation was computed. [2023-11-19 08:00:46,368 INFO L895 garLoopResultBuilder]: At program point L221(line 221) the Hoare annotation is: (or (< ~waterLevel~0 1) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0))) [2023-11-19 08:00:46,369 INFO L899 garLoopResultBuilder]: For program point L221-1(lines 202 226) no Hoare annotation was computed. [2023-11-19 08:00:46,369 INFO L899 garLoopResultBuilder]: For program point L370(lines 370 374) no Hoare annotation was computed. [2023-11-19 08:00:46,369 INFO L899 garLoopResultBuilder]: For program point L370-2(lines 370 374) no Hoare annotation was computed. [2023-11-19 08:00:46,369 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDry_returnLabel#1(lines 1009 1017) no Hoare annotation was computed. [2023-11-19 08:00:46,369 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 202 226) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-11-19 08:00:46,369 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevel_returnLabel#1(lines 361 379) no Hoare annotation was computed. [2023-11-19 08:00:46,370 INFO L895 garLoopResultBuilder]: At program point L216(line 216) the Hoare annotation is: (or (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-11-19 08:00:46,370 INFO L895 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_#res#1|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_~tmp~2#1|)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2023-11-19 08:00:46,370 INFO L899 garLoopResultBuilder]: For program point L210(lines 210 218) no Hoare annotation was computed. [2023-11-19 08:00:46,370 INFO L899 garLoopResultBuilder]: For program point L206(lines 206 223) no Hoare annotation was computed. [2023-11-19 08:00:46,370 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 202 226) no Hoare annotation was computed. [2023-11-19 08:00:46,370 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCritical_returnLabel#1(lines 954 962) no Hoare annotation was computed. [2023-11-19 08:00:46,371 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 286 296) no Hoare annotation was computed. [2023-11-19 08:00:46,371 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 286 296) the Hoare annotation is: true [2023-11-19 08:00:46,371 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 286 296) no Hoare annotation was computed. [2023-11-19 08:00:46,374 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:46,376 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:00:46,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:00:46 BoogieIcfgContainer [2023-11-19 08:00:46,406 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:00:46,406 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:00:46,406 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:00:46,407 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:00:46,407 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:34" (3/4) ... [2023-11-19 08:00:46,409 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:00:46,414 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-19 08:00:46,414 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-19 08:00:46,414 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-19 08:00:46,414 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-19 08:00:46,414 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-19 08:00:46,414 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 08:00:46,415 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-19 08:00:46,415 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-11-19 08:00:46,415 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-11-19 08:00:46,430 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-19 08:00:46,431 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 08:00:46,432 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 08:00:46,433 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:00:46,433 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:00:46,470 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 1) && (2 <= waterLevel)) && (tmp == 1)) && (splverifierCounter == 0)) && !((0 == systemActive))) || ((((((pumpRunning == 0) && (\result == 1)) && (tmp == 1)) && (splverifierCounter == 0)) && (waterLevel == 1)) && !((0 == systemActive)))) [2023-11-19 08:00:46,535 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 1) && (2 <= waterLevel)) && (tmp == 1)) && (splverifierCounter == 0)) && !((0 == systemActive))) || ((((((pumpRunning == 0) && (\result == 1)) && (tmp == 1)) && (splverifierCounter == 0)) && (waterLevel == 1)) && !((0 == systemActive)))) [2023-11-19 08:00:46,596 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:00:46,597 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:00:46,597 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:00:46,598 INFO L158 Benchmark]: Toolchain (without parser) took 13704.11ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 123.3MB in the beginning and 162.7MB in the end (delta: -39.4MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2023-11-19 08:00:46,598 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 115.3MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:00:46,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.73ms. Allocated memory is still 157.3MB. Free memory was 122.7MB in the beginning and 103.0MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 08:00:46,599 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.67ms. Allocated memory is still 157.3MB. Free memory was 103.0MB in the beginning and 100.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:00:46,600 INFO L158 Benchmark]: Boogie Preprocessor took 58.29ms. Allocated memory is still 157.3MB. Free memory was 100.9MB in the beginning and 98.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:00:46,600 INFO L158 Benchmark]: RCFGBuilder took 682.32ms. Allocated memory is still 157.3MB. Free memory was 98.8MB in the beginning and 114.0MB in the end (delta: -15.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 08:00:46,601 INFO L158 Benchmark]: TraceAbstraction took 12095.04ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 113.0MB in the beginning and 171.1MB in the end (delta: -58.1MB). Peak memory consumption was 118.7MB. Max. memory is 16.1GB. [2023-11-19 08:00:46,601 INFO L158 Benchmark]: Witness Printer took 191.01ms. Allocated memory is still 226.5MB. Free memory was 170.1MB in the beginning and 162.7MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 08:00:46,605 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 115.3MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 589.73ms. Allocated memory is still 157.3MB. Free memory was 122.7MB in the beginning and 103.0MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.67ms. Allocated memory is still 157.3MB. Free memory was 103.0MB in the beginning and 100.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.29ms. Allocated memory is still 157.3MB. Free memory was 100.9MB in the beginning and 98.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 682.32ms. Allocated memory is still 157.3MB. Free memory was 98.8MB in the beginning and 114.0MB in the end (delta: -15.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 12095.04ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 113.0MB in the beginning and 171.1MB in the end (delta: -58.1MB). Peak memory consumption was 118.7MB. Max. memory is 16.1GB. * Witness Printer took 191.01ms. Allocated memory is still 226.5MB. Free memory was 170.1MB in the beginning and 162.7MB in the end (delta: 7.4MB). 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [58] - GenericResultAtLocation [Line: 130]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [130] - GenericResultAtLocation [Line: 388]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [388] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [415] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [453] - GenericResultAtLocation [Line: 549]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [549] - GenericResultAtLocation [Line: 915]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [915] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.0s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2363 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2331 mSDsluCounter, 4005 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3041 mSDsCounter, 723 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3215 IncrementalHoareTripleChecker+Invalid, 3938 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 723 mSolverCounterUnsat, 964 mSDtfsCounter, 3215 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 920 GetRequests, 765 SyntacticMatches, 10 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1275 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=710occurred in iteration=9, InterpolantAutomatonStates: 136, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 229 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 823 PreInvPairs, 856 NumberOfFragments, 495 HoareAnnotationTreeSize, 823 FomulaSimplifications, 1775 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 27 FomulaSimplificationsInter, 2185 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1104 NumberOfCodeBlocks, 1104 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1328 ConstructedInterpolants, 0 QuantifiedInterpolants, 2252 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1240 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 554/634 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: ((((((\result == 1) && (2 <= waterLevel)) && (tmp == 1)) && (splverifierCounter == 0)) && !((0 == systemActive))) || ((((((pumpRunning == 0) && (\result == 1)) && (tmp == 1)) && (splverifierCounter == 0)) && (waterLevel == 1)) && !((0 == systemActive)))) - InvariantResult [Line: 465]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-19 08:00:46,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45326f5d-e20d-463a-949d-14c30c47c902/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE