./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/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_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/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_3361a652-57b6-4c2c-b99b-0945003319de/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 e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:36:59,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:36:59,378 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:36:59,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:36:59,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:36:59,444 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:36:59,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:36:59,446 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:36:59,448 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:36:59,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:36:59,456 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:36:59,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:36:59,457 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:36:59,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:36:59,461 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:36:59,461 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:36:59,462 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:36:59,463 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:36:59,464 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:36:59,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:36:59,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:36:59,466 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:36:59,467 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:36:59,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:36:59,468 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:36:59,471 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:36:59,472 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:36:59,473 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:36:59,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:59,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:36:59,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:36:59,477 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:36:59,477 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:36:59,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:36:59,478 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:36:59,478 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:36:59,479 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:36:59,479 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:36:59,480 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:36:59,480 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_3361a652-57b6-4c2c-b99b-0945003319de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b [2023-11-19 07:36:59,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:36:59,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:36:59,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:36:59,951 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:36:59,952 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:36:59,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2023-11-19 07:37:03,810 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:37:04,130 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:37:04,130 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2023-11-19 07:37:04,148 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/data/f92dcd88a/88c2125252c343278eddbfd929172bc4/FLAG69d7ef741 [2023-11-19 07:37:04,181 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/data/f92dcd88a/88c2125252c343278eddbfd929172bc4 [2023-11-19 07:37:04,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:37:04,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:37:04,196 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:04,196 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:37:04,203 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:37:04,204 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:04" (1/1) ... [2023-11-19 07:37:04,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77a458b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:04, skipping insertion in model container [2023-11-19 07:37:04,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:04" (1/1) ... [2023-11-19 07:37:04,301 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:37:04,561 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_3361a652-57b6-4c2c-b99b-0945003319de/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c[1605,1618] [2023-11-19 07:37:04,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:04,728 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:37:04,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-11-19 07:37:04,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2023-11-19 07:37:04,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [96] [2023-11-19 07:37:04,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [165] [2023-11-19 07:37:04,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [398] [2023-11-19 07:37:04,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [502] [2023-11-19 07:37:04,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [536] [2023-11-19 07:37:04,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [902] [2023-11-19 07:37:04,751 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_3361a652-57b6-4c2c-b99b-0945003319de/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c[1605,1618] [2023-11-19 07:37:04,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:04,879 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:37:04,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:04 WrapperNode [2023-11-19 07:37:04,880 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:04,882 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:04,882 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:37:04,882 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:37:04,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:04" (1/1) ... [2023-11-19 07:37:04,911 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:04" (1/1) ... [2023-11-19 07:37:04,950 INFO L138 Inliner]: procedures = 56, calls = 103, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 228 [2023-11-19 07:37:04,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:04,952 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:37:04,952 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:37:04,952 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:37:04,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:04" (1/1) ... [2023-11-19 07:37:04,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:04" (1/1) ... [2023-11-19 07:37:04,971 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:04" (1/1) ... [2023-11-19 07:37:04,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:04" (1/1) ... [2023-11-19 07:37:04,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:04" (1/1) ... [2023-11-19 07:37:04,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:04" (1/1) ... [2023-11-19 07:37:04,992 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:04" (1/1) ... [2023-11-19 07:37:04,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:04" (1/1) ... [2023-11-19 07:37:04,999 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:37:05,000 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:37:05,001 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:37:05,001 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:37:05,002 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:04" (1/1) ... [2023-11-19 07:37:05,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:05,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:05,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:05,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:37:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:37:05,121 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 07:37:05,121 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 07:37:05,121 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-19 07:37:05,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-19 07:37:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 07:37:05,126 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 07:37:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 07:37:05,126 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 07:37:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:37:05,127 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:37:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 07:37:05,127 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 07:37:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-19 07:37:05,128 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-19 07:37:05,128 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-19 07:37:05,129 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-19 07:37:05,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:37:05,130 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 07:37:05,131 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 07:37:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:37:05,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:37:05,303 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:37:05,308 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:37:05,813 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:37:05,828 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:37:05,829 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:37:05,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:05 BoogieIcfgContainer [2023-11-19 07:37:05,837 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:37:05,840 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:37:05,841 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:37:05,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:37:05,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:04" (1/3) ... [2023-11-19 07:37:05,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f5abea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:05, skipping insertion in model container [2023-11-19 07:37:05,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:04" (2/3) ... [2023-11-19 07:37:05,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f5abea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:05, skipping insertion in model container [2023-11-19 07:37:05,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:05" (3/3) ... [2023-11-19 07:37:05,852 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product53.cil.c [2023-11-19 07:37:05,877 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:37:05,877 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:37:05,964 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:37:05,974 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;@7c5d7f28, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:37:05,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:37:05,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 75 states have (on average 1.3866666666666667) internal successors, (104), 85 states have internal predecessors, (104), 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 07:37:06,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 07:37:06,000 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:06,001 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 07:37:06,002 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:06,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:06,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1763060088, now seen corresponding path program 1 times [2023-11-19 07:37:06,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:06,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610147501] [2023-11-19 07:37:06,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:06,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:06,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:37:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:06,350 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 07:37:06,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:06,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610147501] [2023-11-19 07:37:06,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610147501] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:06,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:06,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:06,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991992352] [2023-11-19 07:37:06,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:06,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:37:06,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:06,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:37:06,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:37:06,414 INFO L87 Difference]: Start difference. First operand has 102 states, 75 states have (on average 1.3866666666666667) internal successors, (104), 85 states have internal predecessors, (104), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:06,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:06,457 INFO L93 Difference]: Finished difference Result 196 states and 267 transitions. [2023-11-19 07:37:06,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:37:06,459 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-19 07:37:06,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:06,471 INFO L225 Difference]: With dead ends: 196 [2023-11-19 07:37:06,471 INFO L226 Difference]: Without dead ends: 93 [2023-11-19 07:37:06,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:37:06,481 INFO L413 NwaCegarLoop]: 130 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, 130 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 07:37:06,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:06,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-19 07:37:06,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-11-19 07:37:06,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 68 states have (on average 1.3235294117647058) internal successors, (90), 77 states have internal predecessors, (90), 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 07:37:06,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 121 transitions. [2023-11-19 07:37:06,542 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 121 transitions. Word has length 25 [2023-11-19 07:37:06,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:06,543 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 121 transitions. [2023-11-19 07:37:06,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:06,544 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 121 transitions. [2023-11-19 07:37:06,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 07:37:06,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:06,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:06,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:37:06,549 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:06,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:06,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1681284877, now seen corresponding path program 1 times [2023-11-19 07:37:06,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:06,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483522207] [2023-11-19 07:37:06,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:06,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:06,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:37:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:06,661 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 07:37:06,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:06,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483522207] [2023-11-19 07:37:06,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483522207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:06,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:06,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:06,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374054374] [2023-11-19 07:37:06,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:06,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:06,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:06,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:06,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:06,667 INFO L87 Difference]: Start difference. First operand 93 states and 121 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:06,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:06,691 INFO L93 Difference]: Finished difference Result 152 states and 198 transitions. [2023-11-19 07:37:06,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:06,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-11-19 07:37:06,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:06,695 INFO L225 Difference]: With dead ends: 152 [2023-11-19 07:37:06,695 INFO L226 Difference]: Without dead ends: 84 [2023-11-19 07:37:06,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:06,699 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 12 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 200 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 07:37:06,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 200 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:06,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-19 07:37:06,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-19 07:37:06,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 71 states have internal predecessors, (83), 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 07:37:06,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2023-11-19 07:37:06,717 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 26 [2023-11-19 07:37:06,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:06,717 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2023-11-19 07:37:06,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:06,718 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2023-11-19 07:37:06,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 07:37:06,720 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:06,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:06,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:37:06,721 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:06,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:06,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1900585844, now seen corresponding path program 1 times [2023-11-19 07:37:06,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:06,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165498819] [2023-11-19 07:37:06,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:06,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:06,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:37:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:06,897 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 07:37:06,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:06,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165498819] [2023-11-19 07:37:06,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165498819] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:06,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:06,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:06,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154434458] [2023-11-19 07:37:06,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:06,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:06,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:06,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:06,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:06,906 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:06,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:06,944 INFO L93 Difference]: Finished difference Result 161 states and 212 transitions. [2023-11-19 07:37:06,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:06,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-11-19 07:37:06,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:06,947 INFO L225 Difference]: With dead ends: 161 [2023-11-19 07:37:06,947 INFO L226 Difference]: Without dead ends: 84 [2023-11-19 07:37:06,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:06,953 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 91 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 107 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 07:37:06,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 107 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:06,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-19 07:37:06,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-19 07:37:06,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.3225806451612903) internal successors, (82), 71 states have internal predecessors, (82), 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 07:37:06,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 108 transitions. [2023-11-19 07:37:06,986 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 108 transitions. Word has length 30 [2023-11-19 07:37:06,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:06,986 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 108 transitions. [2023-11-19 07:37:06,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:06,987 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 108 transitions. [2023-11-19 07:37:06,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 07:37:06,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:06,990 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:06,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:37:06,991 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:06,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:06,991 INFO L85 PathProgramCache]: Analyzing trace with hash 810060833, now seen corresponding path program 1 times [2023-11-19 07:37:06,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:06,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707367817] [2023-11-19 07:37:06,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:06,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:07,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:37:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:07,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:37:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:07,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:37:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:37:07,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:07,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707367817] [2023-11-19 07:37:07,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707367817] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:07,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:07,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:37:07,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570256175] [2023-11-19 07:37:07,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:07,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:37:07,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:07,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:37:07,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:37:07,306 INFO L87 Difference]: Start difference. First operand 84 states and 108 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:37:07,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:07,597 INFO L93 Difference]: Finished difference Result 243 states and 317 transitions. [2023-11-19 07:37:07,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:37:07,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2023-11-19 07:37:07,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:07,601 INFO L225 Difference]: With dead ends: 243 [2023-11-19 07:37:07,601 INFO L226 Difference]: Without dead ends: 166 [2023-11-19 07:37:07,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 07:37:07,604 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 154 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:07,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 219 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:37:07,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-11-19 07:37:07,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 160. [2023-11-19 07:37:07,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 120 states have (on average 1.2916666666666667) internal successors, (155), 128 states have internal predecessors, (155), 19 states have call successors, (19), 15 states have call predecessors, (19), 20 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2023-11-19 07:37:07,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 204 transitions. [2023-11-19 07:37:07,636 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 204 transitions. Word has length 43 [2023-11-19 07:37:07,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:07,637 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 204 transitions. [2023-11-19 07:37:07,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:37:07,637 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 204 transitions. [2023-11-19 07:37:07,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 07:37:07,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:07,640 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, 1, 1, 1] [2023-11-19 07:37:07,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:37:07,641 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:07,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:07,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1861351509, now seen corresponding path program 1 times [2023-11-19 07:37:07,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:07,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430708736] [2023-11-19 07:37:07,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:07,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:07,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:37:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:07,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:07,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:37:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:07,905 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 07:37:07,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:07,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430708736] [2023-11-19 07:37:07,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430708736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:07,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:07,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:37:07,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250052817] [2023-11-19 07:37:07,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:07,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:07,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:07,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:07,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:07,909 INFO L87 Difference]: Start difference. First operand 160 states and 204 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:37:08,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:08,258 INFO L93 Difference]: Finished difference Result 425 states and 570 transitions. [2023-11-19 07:37:08,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:37:08,259 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 3 states have call successors, (3) Word has length 49 [2023-11-19 07:37:08,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:08,264 INFO L225 Difference]: With dead ends: 425 [2023-11-19 07:37:08,264 INFO L226 Difference]: Without dead ends: 272 [2023-11-19 07:37:08,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:37:08,277 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 162 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:08,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 426 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:37:08,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-11-19 07:37:08,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 253. [2023-11-19 07:37:08,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 191 states have (on average 1.2827225130890052) internal successors, (245), 201 states have internal predecessors, (245), 30 states have call successors, (30), 26 states have call predecessors, (30), 31 states have return successors, (49), 32 states have call predecessors, (49), 30 states have call successors, (49) [2023-11-19 07:37:08,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 324 transitions. [2023-11-19 07:37:08,364 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 324 transitions. Word has length 49 [2023-11-19 07:37:08,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:08,366 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 324 transitions. [2023-11-19 07:37:08,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:37:08,367 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 324 transitions. [2023-11-19 07:37:08,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 07:37:08,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:08,376 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, 1, 1, 1] [2023-11-19 07:37:08,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:37:08,377 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:08,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:08,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1995365015, now seen corresponding path program 1 times [2023-11-19 07:37:08,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:08,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853627924] [2023-11-19 07:37:08,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:08,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:37:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:08,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:08,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:37:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:08,625 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 07:37:08,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:08,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853627924] [2023-11-19 07:37:08,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853627924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:08,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:08,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:37:08,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194827310] [2023-11-19 07:37:08,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:08,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:08,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:08,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:08,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:08,629 INFO L87 Difference]: Start difference. First operand 253 states and 324 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:37:08,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:08,851 INFO L93 Difference]: Finished difference Result 513 states and 670 transitions. [2023-11-19 07:37:08,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:37:08,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2023-11-19 07:37:08,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:08,857 INFO L225 Difference]: With dead ends: 513 [2023-11-19 07:37:08,857 INFO L226 Difference]: Without dead ends: 267 [2023-11-19 07:37:08,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:37:08,865 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 68 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:08,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 427 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:37:08,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-11-19 07:37:08,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 259. [2023-11-19 07:37:08,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 197 states have (on average 1.2741116751269035) internal successors, (251), 207 states have internal predecessors, (251), 30 states have call successors, (30), 26 states have call predecessors, (30), 31 states have return successors, (49), 32 states have call predecessors, (49), 30 states have call successors, (49) [2023-11-19 07:37:08,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 330 transitions. [2023-11-19 07:37:08,924 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 330 transitions. Word has length 49 [2023-11-19 07:37:08,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:08,925 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 330 transitions. [2023-11-19 07:37:08,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:37:08,925 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 330 transitions. [2023-11-19 07:37:08,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 07:37:08,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:08,928 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, 1, 1, 1] [2023-11-19 07:37:08,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:37:08,929 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:08,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:08,929 INFO L85 PathProgramCache]: Analyzing trace with hash -2080747563, now seen corresponding path program 1 times [2023-11-19 07:37:08,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:08,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624792143] [2023-11-19 07:37:08,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:08,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:09,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:37:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:09,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:37:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:09,117 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 07:37:09,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:09,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624792143] [2023-11-19 07:37:09,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624792143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:09,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:09,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:37:09,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759435183] [2023-11-19 07:37:09,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:09,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:09,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:09,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:09,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:09,121 INFO L87 Difference]: Start difference. First operand 259 states and 330 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:37:09,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:09,378 INFO L93 Difference]: Finished difference Result 475 states and 619 transitions. [2023-11-19 07:37:09,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:37:09,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2023-11-19 07:37:09,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:09,382 INFO L225 Difference]: With dead ends: 475 [2023-11-19 07:37:09,382 INFO L226 Difference]: Without dead ends: 223 [2023-11-19 07:37:09,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:37:09,385 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 167 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:09,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 260 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:37:09,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-11-19 07:37:09,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 218. [2023-11-19 07:37:09,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 165 states have (on average 1.2545454545454546) internal successors, (207), 174 states have internal predecessors, (207), 26 states have call successors, (26), 22 states have call predecessors, (26), 26 states have return successors, (37), 27 states have call predecessors, (37), 26 states have call successors, (37) [2023-11-19 07:37:09,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 270 transitions. [2023-11-19 07:37:09,412 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 270 transitions. Word has length 49 [2023-11-19 07:37:09,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:09,413 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 270 transitions. [2023-11-19 07:37:09,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:37:09,414 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 270 transitions. [2023-11-19 07:37:09,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 07:37:09,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:09,415 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, 1, 1, 1, 1, 1] [2023-11-19 07:37:09,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:37:09,416 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:09,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:09,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1736726981, now seen corresponding path program 1 times [2023-11-19 07:37:09,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:09,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351235911] [2023-11-19 07:37:09,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:09,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:09,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:37:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:09,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:09,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:37:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:09,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:37:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:09,559 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 07:37:09,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:09,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351235911] [2023-11-19 07:37:09,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351235911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:09,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:09,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:37:09,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307418251] [2023-11-19 07:37:09,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:09,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:09,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:09,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:09,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:09,563 INFO L87 Difference]: Start difference. First operand 218 states and 270 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:37:09,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:09,900 INFO L93 Difference]: Finished difference Result 432 states and 535 transitions. [2023-11-19 07:37:09,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:37:09,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2023-11-19 07:37:09,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:09,904 INFO L225 Difference]: With dead ends: 432 [2023-11-19 07:37:09,904 INFO L226 Difference]: Without dead ends: 221 [2023-11-19 07:37:09,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:37:09,906 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 125 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:09,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 373 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:37:09,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-19 07:37:09,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 216. [2023-11-19 07:37:09,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 163 states have (on average 1.2453987730061349) internal successors, (203), 172 states have internal predecessors, (203), 26 states have call successors, (26), 22 states have call predecessors, (26), 26 states have return successors, (37), 27 states have call predecessors, (37), 26 states have call successors, (37) [2023-11-19 07:37:09,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 266 transitions. [2023-11-19 07:37:09,930 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 266 transitions. Word has length 51 [2023-11-19 07:37:09,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:09,931 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 266 transitions. [2023-11-19 07:37:09,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:37:09,931 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 266 transitions. [2023-11-19 07:37:09,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 07:37:09,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:09,933 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:09,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:37:09,934 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:09,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:09,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1340244461, now seen corresponding path program 1 times [2023-11-19 07:37:09,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:09,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89301898] [2023-11-19 07:37:09,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:09,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:10,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:37:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:10,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-19 07:37:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:10,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:10,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:37:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:10,109 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 07:37:10,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:10,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89301898] [2023-11-19 07:37:10,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89301898] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:10,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:10,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:37:10,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872325526] [2023-11-19 07:37:10,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:10,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:37:10,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:10,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:37:10,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:37:10,114 INFO L87 Difference]: Start difference. First operand 216 states and 266 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:37:10,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:10,844 INFO L93 Difference]: Finished difference Result 427 states and 534 transitions. [2023-11-19 07:37:10,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-19 07:37:10,845 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2023-11-19 07:37:10,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:10,848 INFO L225 Difference]: With dead ends: 427 [2023-11-19 07:37:10,849 INFO L226 Difference]: Without dead ends: 269 [2023-11-19 07:37:10,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2023-11-19 07:37:10,851 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 366 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:10,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 427 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:37:10,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-11-19 07:37:10,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 218. [2023-11-19 07:37:10,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 164 states have (on average 1.2073170731707317) internal successors, (198), 174 states have internal predecessors, (198), 26 states have call successors, (26), 22 states have call predecessors, (26), 27 states have return successors, (32), 27 states have call predecessors, (32), 26 states have call successors, (32) [2023-11-19 07:37:10,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 256 transitions. [2023-11-19 07:37:10,878 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 256 transitions. Word has length 53 [2023-11-19 07:37:10,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:10,878 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 256 transitions. [2023-11-19 07:37:10,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:37:10,879 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 256 transitions. [2023-11-19 07:37:10,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 07:37:10,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:10,880 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:10,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:37:10,881 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:10,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:10,882 INFO L85 PathProgramCache]: Analyzing trace with hash -768900197, now seen corresponding path program 1 times [2023-11-19 07:37:10,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:10,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076105640] [2023-11-19 07:37:10,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:10,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:10,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:37:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:10,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-19 07:37:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:11,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:37:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:11,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:37:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:11,062 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 07:37:11,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:11,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076105640] [2023-11-19 07:37:11,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076105640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:11,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:11,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:37:11,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87358679] [2023-11-19 07:37:11,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:11,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:37:11,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:11,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:37:11,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:37:11,067 INFO L87 Difference]: Start difference. First operand 218 states and 256 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:37:11,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:11,430 INFO L93 Difference]: Finished difference Result 417 states and 499 transitions. [2023-11-19 07:37:11,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:37:11,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2023-11-19 07:37:11,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:11,434 INFO L225 Difference]: With dead ends: 417 [2023-11-19 07:37:11,434 INFO L226 Difference]: Without dead ends: 257 [2023-11-19 07:37:11,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:37:11,436 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 156 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:11,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 291 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:37:11,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-11-19 07:37:11,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 218. [2023-11-19 07:37:11,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 164 states have (on average 1.201219512195122) internal successors, (197), 174 states have internal predecessors, (197), 26 states have call successors, (26), 22 states have call predecessors, (26), 27 states have return successors, (32), 27 states have call predecessors, (32), 26 states have call successors, (32) [2023-11-19 07:37:11,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 255 transitions. [2023-11-19 07:37:11,469 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 255 transitions. Word has length 55 [2023-11-19 07:37:11,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:11,470 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 255 transitions. [2023-11-19 07:37:11,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:37:11,472 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 255 transitions. [2023-11-19 07:37:11,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 07:37:11,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:11,473 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:11,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:37:11,475 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:11,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:11,476 INFO L85 PathProgramCache]: Analyzing trace with hash -696926305, now seen corresponding path program 1 times [2023-11-19 07:37:11,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:11,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96327008] [2023-11-19 07:37:11,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:11,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:11,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:37:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:11,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-19 07:37:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:11,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:11,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:37:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:11,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:37:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:11,680 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 07:37:11,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:11,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96327008] [2023-11-19 07:37:11,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96327008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:11,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:11,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:37:11,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209299057] [2023-11-19 07:37:11,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:11,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:37:11,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:11,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:37:11,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:37:11,684 INFO L87 Difference]: Start difference. First operand 218 states and 255 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 07:37:12,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:12,330 INFO L93 Difference]: Finished difference Result 530 states and 651 transitions. [2023-11-19 07:37:12,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-19 07:37:12,331 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 55 [2023-11-19 07:37:12,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:12,334 INFO L225 Difference]: With dead ends: 530 [2023-11-19 07:37:12,335 INFO L226 Difference]: Without dead ends: 370 [2023-11-19 07:37:12,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:37:12,337 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 298 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:12,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 369 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:37:12,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-11-19 07:37:12,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 347. [2023-11-19 07:37:12,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 259 states have (on average 1.193050193050193) internal successors, (309), 275 states have internal predecessors, (309), 46 states have call successors, (46), 35 states have call predecessors, (46), 41 states have return successors, (60), 44 states have call predecessors, (60), 46 states have call successors, (60) [2023-11-19 07:37:12,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 415 transitions. [2023-11-19 07:37:12,382 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 415 transitions. Word has length 55 [2023-11-19 07:37:12,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:12,384 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 415 transitions. [2023-11-19 07:37:12,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 07:37:12,385 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 415 transitions. [2023-11-19 07:37:12,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 07:37:12,387 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:12,388 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:12,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:37:12,388 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:12,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:12,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1626295211, now seen corresponding path program 1 times [2023-11-19 07:37:12,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:12,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516952619] [2023-11-19 07:37:12,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:12,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:37:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:37:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:37:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:37:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:37:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 07:37:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-19 07:37:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,719 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 07:37:12,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:12,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516952619] [2023-11-19 07:37:12,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516952619] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:12,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821252122] [2023-11-19 07:37:12,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:12,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:12,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:12,728 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:12,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:37:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:37:12,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:13,194 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 07:37:13,195 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:13,607 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 07:37:13,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821252122] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:13,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:13,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 9] total 20 [2023-11-19 07:37:13,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429695365] [2023-11-19 07:37:13,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:13,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-19 07:37:13,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:13,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-19 07:37:13,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:37:13,611 INFO L87 Difference]: Start difference. First operand 347 states and 415 transitions. Second operand has 20 states, 20 states have (on average 6.6) internal successors, (132), 14 states have internal predecessors, (132), 6 states have call successors, (25), 10 states have call predecessors, (25), 8 states have return successors, (22), 8 states have call predecessors, (22), 6 states have call successors, (22) [2023-11-19 07:37:15,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:15,360 INFO L93 Difference]: Finished difference Result 1073 states and 1374 transitions. [2023-11-19 07:37:15,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-11-19 07:37:15,361 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.6) internal successors, (132), 14 states have internal predecessors, (132), 6 states have call successors, (25), 10 states have call predecessors, (25), 8 states have return successors, (22), 8 states have call predecessors, (22), 6 states have call successors, (22) Word has length 89 [2023-11-19 07:37:15,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:15,362 INFO L225 Difference]: With dead ends: 1073 [2023-11-19 07:37:15,362 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:37:15,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 189 SyntacticMatches, 7 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1419 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1113, Invalid=3999, Unknown=0, NotChecked=0, Total=5112 [2023-11-19 07:37:15,369 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 496 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:15,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 731 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:37:15,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:37:15,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:37:15,372 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 07:37:15,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:37:15,373 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2023-11-19 07:37:15,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:15,373 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:37:15,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.6) internal successors, (132), 14 states have internal predecessors, (132), 6 states have call successors, (25), 10 states have call predecessors, (25), 8 states have return successors, (22), 8 states have call predecessors, (22), 6 states have call successors, (22) [2023-11-19 07:37:15,374 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:37:15,374 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:37:15,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:37:15,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:15,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-19 07:37:15,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:37:17,697 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 296 303) no Hoare annotation was computed. [2023-11-19 07:37:17,697 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 296 303) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (< 1 ~waterLevel~0) (< |old(~pumpRunning~0)| 1)) [2023-11-19 07:37:17,698 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 296 303) no Hoare annotation was computed. [2023-11-19 07:37:17,698 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 203 209) no Hoare annotation was computed. [2023-11-19 07:37:17,698 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 203 209) the Hoare annotation is: true [2023-11-19 07:37:17,698 INFO L899 garLoopResultBuilder]: For program point L430-1(lines 426 437) no Hoare annotation was computed. [2023-11-19 07:37:17,698 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 426 437) the Hoare annotation is: (let ((.cse0 (< 2 ~waterLevel~0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~methaneLevelCritical~0)| 0)) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (< ~pumpRunning~0 1) .cse1 .cse2 .cse3) (or .cse0 (not (= ~pumpRunning~0 0)) .cse1 .cse2 .cse3))) [2023-11-19 07:37:17,698 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 426 437) no Hoare annotation was computed. [2023-11-19 07:37:17,698 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 438 446) the Hoare annotation is: true [2023-11-19 07:37:17,698 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 438 446) no Hoare annotation was computed. [2023-11-19 07:37:17,698 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 438 446) no Hoare annotation was computed. [2023-11-19 07:37:17,699 INFO L899 garLoopResultBuilder]: For program point L929(lines 904 933) no Hoare annotation was computed. [2023-11-19 07:37:17,699 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 904 933) no Hoare annotation was computed. [2023-11-19 07:37:17,699 INFO L899 garLoopResultBuilder]: For program point L925(line 925) no Hoare annotation was computed. [2023-11-19 07:37:17,699 INFO L899 garLoopResultBuilder]: For program point L918(lines 918 922) no Hoare annotation was computed. [2023-11-19 07:37:17,699 INFO L902 garLoopResultBuilder]: At program point L918-1(lines 918 922) the Hoare annotation is: true [2023-11-19 07:37:17,699 INFO L899 garLoopResultBuilder]: For program point L915(line 915) no Hoare annotation was computed. [2023-11-19 07:37:17,699 INFO L902 garLoopResultBuilder]: At program point L914-2(lines 914 928) the Hoare annotation is: true [2023-11-19 07:37:17,699 INFO L902 garLoopResultBuilder]: At program point L910(line 910) the Hoare annotation is: true [2023-11-19 07:37:17,699 INFO L899 garLoopResultBuilder]: For program point L910-1(line 910) no Hoare annotation was computed. [2023-11-19 07:37:17,699 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 904 933) the Hoare annotation is: true [2023-11-19 07:37:17,700 INFO L895 garLoopResultBuilder]: At program point L510(line 510) the Hoare annotation is: (let ((.cse7 (= ~pumpRunning~0 0)) (.cse5 (<= ~waterLevel~0 1)) (.cse8 (= 1 ~systemActive~0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse9)) (.cse2 (and .cse7 .cse5 .cse8 .cse9 .cse3)) (.cse1 (not .cse8)) (.cse4 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 (and (<= 1 ~pumpRunning~0) .cse3) .cse4) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 .cse2) (let ((.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5 .cse6) (and .cse7 .cse5 .cse6) (< |old(~pumpRunning~0)| 1) .cse4))))) [2023-11-19 07:37:17,700 INFO L899 garLoopResultBuilder]: For program point L510-1(line 510) no Hoare annotation was computed. [2023-11-19 07:37:17,700 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 279) no Hoare annotation was computed. [2023-11-19 07:37:17,700 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 284) no Hoare annotation was computed. [2023-11-19 07:37:17,700 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 179 202) no Hoare annotation was computed. [2023-11-19 07:37:17,700 INFO L899 garLoopResultBuilder]: For program point getWaterLevel_returnLabel#1(lines 470 478) no Hoare annotation was computed. [2023-11-19 07:37:17,700 INFO L895 garLoopResultBuilder]: At program point L309(line 309) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|)) (< |old(~pumpRunning~0)| 1) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2023-11-19 07:37:17,700 INFO L899 garLoopResultBuilder]: For program point L309-1(line 309) no Hoare annotation was computed. [2023-11-19 07:37:17,701 INFO L899 garLoopResultBuilder]: For program point L512(lines 512 532) no Hoare annotation was computed. [2023-11-19 07:37:17,701 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 190 196) no Hoare annotation was computed. [2023-11-19 07:37:17,701 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-11-19 07:37:17,701 INFO L895 garLoopResultBuilder]: At program point L277(line 277) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|)) (< |old(~pumpRunning~0)| 1) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2023-11-19 07:37:17,701 INFO L895 garLoopResultBuilder]: At program point L273(line 273) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|)) (< |old(~pumpRunning~0)| 1) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2023-11-19 07:37:17,701 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 50 57) no Hoare annotation was computed. [2023-11-19 07:37:17,701 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 179 202) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (< |old(~pumpRunning~0)| 1) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse1) .cse0 .cse2))) [2023-11-19 07:37:17,701 INFO L895 garLoopResultBuilder]: At program point L282(line 282) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 (< |old(~pumpRunning~0)| 1) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse1))) [2023-11-19 07:37:17,701 INFO L899 garLoopResultBuilder]: For program point L282-1(lines 263 287) no Hoare annotation was computed. [2023-11-19 07:37:17,702 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 410) no Hoare annotation was computed. [2023-11-19 07:37:17,702 INFO L899 garLoopResultBuilder]: For program point L183-1(lines 182 201) no Hoare annotation was computed. [2023-11-19 07:37:17,702 INFO L899 garLoopResultBuilder]: For program point L406-2(lines 402 413) no Hoare annotation was computed. [2023-11-19 07:37:17,702 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 179 202) no Hoare annotation was computed. [2023-11-19 07:37:17,702 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarm_returnLabel#1(lines 304 314) no Hoare annotation was computed. [2023-11-19 07:37:17,703 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 528) no Hoare annotation was computed. [2023-11-19 07:37:17,703 INFO L899 garLoopResultBuilder]: For program point isPumpRunning_returnLabel#1(lines 315 323) no Hoare annotation was computed. [2023-11-19 07:37:17,703 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-11-19 07:37:17,704 INFO L899 garLoopResultBuilder]: For program point L518(lines 518 531) no Hoare annotation was computed. [2023-11-19 07:37:17,704 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 503 535) no Hoare annotation was computed. [2023-11-19 07:37:17,704 INFO L899 garLoopResultBuilder]: For program point L985(lines 985 992) no Hoare annotation was computed. [2023-11-19 07:37:17,704 INFO L899 garLoopResultBuilder]: For program point L985-2(lines 985 992) no Hoare annotation was computed. [2023-11-19 07:37:17,704 INFO L899 garLoopResultBuilder]: For program point L147(lines 147 151) no Hoare annotation was computed. [2023-11-19 07:37:17,704 INFO L895 garLoopResultBuilder]: At program point L147-2(lines 141 152) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2))) [2023-11-19 07:37:17,705 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 965 974) no Hoare annotation was computed. [2023-11-19 07:37:17,705 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 73 79) no Hoare annotation was computed. [2023-11-19 07:37:17,705 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 975 997) no Hoare annotation was computed. [2023-11-19 07:37:17,705 INFO L899 garLoopResultBuilder]: For program point L131(lines 131 137) no Hoare annotation was computed. [2023-11-19 07:37:17,705 INFO L899 garLoopResultBuilder]: For program point L131-1(lines 131 137) no Hoare annotation was computed. [2023-11-19 07:37:17,705 INFO L899 garLoopResultBuilder]: For program point L160(lines 101 164) no Hoare annotation was computed. [2023-11-19 07:37:17,705 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:37:17,706 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:37:17,706 INFO L895 garLoopResultBuilder]: At program point L123(line 123) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 (<= ~waterLevel~0 2)) (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) .cse0 .cse1))) [2023-11-19 07:37:17,706 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 958 964) no Hoare annotation was computed. [2023-11-19 07:37:17,706 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:37:17,706 INFO L895 garLoopResultBuilder]: At program point L157(lines 110 158) the Hoare annotation is: false [2023-11-19 07:37:17,706 INFO L899 garLoopResultBuilder]: For program point L112(lines 111 156) no Hoare annotation was computed. [2023-11-19 07:37:17,707 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 152) no Hoare annotation was computed. [2023-11-19 07:37:17,707 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:37:17,707 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 80 86) no Hoare annotation was computed. [2023-11-19 07:37:17,707 INFO L895 garLoopResultBuilder]: At program point L133(line 133) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2))) [2023-11-19 07:37:17,707 INFO L895 garLoopResultBuilder]: At program point L154(lines 111 156) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 (<= ~waterLevel~0 2)) (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) .cse0 .cse1))) [2023-11-19 07:37:17,707 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 127) no Hoare annotation was computed. [2023-11-19 07:37:17,708 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 121 127) no Hoare annotation was computed. [2023-11-19 07:37:17,708 INFO L899 garLoopResultBuilder]: For program point L113(lines 113 117) no Hoare annotation was computed. [2023-11-19 07:37:17,708 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 87 95) no Hoare annotation was computed. [2023-11-19 07:37:17,708 INFO L895 garLoopResultBuilder]: At program point L225(line 225) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0 .cse1) (or .cse1 (< 1 ~waterLevel~0) (< |old(~pumpRunning~0)| 1)) (or (< 2 ~waterLevel~0) .cse0 .cse1 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))))) [2023-11-19 07:37:17,708 INFO L899 garLoopResultBuilder]: For program point L219(lines 219 227) no Hoare annotation was computed. [2023-11-19 07:37:17,708 INFO L899 garLoopResultBuilder]: For program point activatePump_returnLabel#1(lines 288 295) no Hoare annotation was computed. [2023-11-19 07:37:17,709 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 232) no Hoare annotation was computed. [2023-11-19 07:37:17,709 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 211 235) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (< 1 ~waterLevel~0) (< |old(~pumpRunning~0)| 1)))) [2023-11-19 07:37:17,709 INFO L895 garLoopResultBuilder]: At program point L230(line 230) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (< 1 ~waterLevel~0) (< |old(~pumpRunning~0)| 1)))) [2023-11-19 07:37:17,709 INFO L899 garLoopResultBuilder]: For program point L230-1(lines 211 235) no Hoare annotation was computed. [2023-11-19 07:37:17,709 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 479 492) no Hoare annotation was computed. [2023-11-19 07:37:17,710 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 360 378) no Hoare annotation was computed. [2023-11-19 07:37:17,710 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 211 235) no Hoare annotation was computed. [2023-11-19 07:37:17,710 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 373) no Hoare annotation was computed. [2023-11-19 07:37:17,710 INFO L899 garLoopResultBuilder]: For program point L369-2(lines 369 373) no Hoare annotation was computed. [2023-11-19 07:37:17,710 INFO L899 garLoopResultBuilder]: For program point L483(lines 483 489) no Hoare annotation was computed. [2023-11-19 07:37:17,710 INFO L899 garLoopResultBuilder]: For program point L418-1(lines 414 425) no Hoare annotation was computed. [2023-11-19 07:37:17,710 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 414 425) no Hoare annotation was computed. [2023-11-19 07:37:17,711 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 414 425) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (< ~pumpRunning~0 1) .cse0 .cse1 (< 2 |old(~waterLevel~0)|)) (or (< 1 |old(~waterLevel~0)|) (not (= ~pumpRunning~0 0)) .cse0 .cse1))) [2023-11-19 07:37:17,711 INFO L895 garLoopResultBuilder]: At program point L256(line 256) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or .cse0 (< 1 ~waterLevel~0) (< |old(~pumpRunning~0)| 1)))) [2023-11-19 07:37:17,711 INFO L899 garLoopResultBuilder]: For program point L256-1(lines 237 261) no Hoare annotation was computed. [2023-11-19 07:37:17,711 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDry_returnLabel#1(lines 493 501) no Hoare annotation was computed. [2023-11-19 07:37:17,711 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 237 261) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (< 1 ~waterLevel~0) (< |old(~pumpRunning~0)| 1)))) [2023-11-19 07:37:17,711 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevel_returnLabel#1(lines 379 397) no Hoare annotation was computed. [2023-11-19 07:37:17,712 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 237 261) no Hoare annotation was computed. [2023-11-19 07:37:17,712 INFO L895 garLoopResultBuilder]: At program point L251(line 251) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (< 1 ~waterLevel~0) (< |old(~pumpRunning~0)| 1)))) [2023-11-19 07:37:17,712 INFO L895 garLoopResultBuilder]: At program point L247(line 247) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (< 1 ~waterLevel~0) (< |old(~pumpRunning~0)| 1)))) [2023-11-19 07:37:17,712 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 253) no Hoare annotation was computed. [2023-11-19 07:37:17,712 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 258) no Hoare annotation was computed. [2023-11-19 07:37:17,712 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 392) no Hoare annotation was computed. [2023-11-19 07:37:17,713 INFO L899 garLoopResultBuilder]: For program point L388-2(lines 388 392) no Hoare annotation was computed. [2023-11-19 07:37:17,715 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:17,717 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:37:17,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:37:17 BoogieIcfgContainer [2023-11-19 07:37:17,743 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:37:17,743 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:37:17,743 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:37:17,743 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:37:17,744 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:05" (3/4) ... [2023-11-19 07:37:17,746 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:37:17,750 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-19 07:37:17,750 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-19 07:37:17,750 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-19 07:37:17,750 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-19 07:37:17,750 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-19 07:37:17,750 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-19 07:37:17,750 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:37:17,751 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-19 07:37:17,751 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2023-11-19 07:37:17,766 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-19 07:37:17,766 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 07:37:17,767 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 07:37:17,768 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:37:17,768 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:37:17,921 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:37:17,922 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:37:17,922 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:37:17,923 INFO L158 Benchmark]: Toolchain (without parser) took 13731.19ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 118.8MB in the beginning and 93.8MB in the end (delta: 25.0MB). Peak memory consumption was 100.3MB. Max. memory is 16.1GB. [2023-11-19 07:37:17,923 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 113.2MB. Free memory was 61.6MB in the beginning and 61.5MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:37:17,924 INFO L158 Benchmark]: CACSL2BoogieTranslator took 684.89ms. Allocated memory is still 163.6MB. Free memory was 118.4MB in the beginning and 99.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:37:17,924 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.64ms. Allocated memory is still 163.6MB. Free memory was 99.1MB in the beginning and 96.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:37:17,925 INFO L158 Benchmark]: Boogie Preprocessor took 47.43ms. Allocated memory is still 163.6MB. Free memory was 96.6MB in the beginning and 94.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:37:17,925 INFO L158 Benchmark]: RCFGBuilder took 836.66ms. Allocated memory is still 163.6MB. Free memory was 94.9MB in the beginning and 128.1MB in the end (delta: -33.2MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2023-11-19 07:37:17,926 INFO L158 Benchmark]: TraceAbstraction took 11902.31ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 127.4MB in the beginning and 102.2MB in the end (delta: 25.2MB). Peak memory consumption was 128.9MB. Max. memory is 16.1GB. [2023-11-19 07:37:17,926 INFO L158 Benchmark]: Witness Printer took 179.13ms. Allocated memory is still 237.0MB. Free memory was 102.2MB in the beginning and 93.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:37:17,929 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 113.2MB. Free memory was 61.6MB in the beginning and 61.5MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 684.89ms. Allocated memory is still 163.6MB. Free memory was 118.4MB in the beginning and 99.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.64ms. Allocated memory is still 163.6MB. Free memory was 99.1MB in the beginning and 96.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.43ms. Allocated memory is still 163.6MB. Free memory was 96.6MB in the beginning and 94.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 836.66ms. Allocated memory is still 163.6MB. Free memory was 94.9MB in the beginning and 128.1MB in the end (delta: -33.2MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 11902.31ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 127.4MB in the beginning and 102.2MB in the end (delta: 25.2MB). Peak memory consumption was 128.9MB. Max. memory is 16.1GB. * Witness Printer took 179.13ms. Allocated memory is still 237.0MB. Free memory was 102.2MB in the beginning and 93.8MB in the end (delta: 8.4MB). 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,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [96] - GenericResultAtLocation [Line: 165]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [165] - GenericResultAtLocation [Line: 398]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [398] - GenericResultAtLocation [Line: 502]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [502] - GenericResultAtLocation [Line: 536]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [536] - GenericResultAtLocation [Line: 902]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [902] * 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, 102 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.8s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2136 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2095 mSDsluCounter, 3960 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2871 mSDsCounter, 699 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2911 IncrementalHoareTripleChecker+Invalid, 3610 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 699 mSolverCounterUnsat, 1089 mSDtfsCounter, 2911 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 454 GetRequests, 288 SyntacticMatches, 7 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1629 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=347occurred in iteration=11, InterpolantAutomatonStates: 147, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 156 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 824 PreInvPairs, 946 NumberOfFragments, 681 HoareAnnotationTreeSize, 824 FomulaSimplifications, 3600 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 27 FomulaSimplificationsInter, 4737 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 663 NumberOfCodeBlocks, 663 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 738 ConstructedInterpolants, 0 QuantifiedInterpolants, 1533 SizeOfPredicates, 4 NumberOfNonLiveVariables, 307 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 60/81 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: 110]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: (((((1 <= pumpRunning) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 914]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-19 07:37:17,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3361a652-57b6-4c2c-b99b-0945003319de/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