./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/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_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/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_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/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 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:05:51,882 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:05:51,991 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 08:05:52,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:05:52,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:05:52,038 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:05:52,039 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:05:52,039 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:05:52,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:05:52,045 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:05:52,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:05:52,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:05:52,047 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:05:52,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:05:52,050 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:05:52,050 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:05:52,050 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:05:52,051 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:05:52,051 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:05:52,051 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:05:52,052 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:05:52,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:05:52,053 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:05:52,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:05:52,054 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:05:52,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:05:52,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:05:52,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:05:52,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:52,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:05:52,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:05:52,057 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:05:52,057 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:05:52,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:05:52,058 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:05:52,058 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:05:52,058 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:05:52,058 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:05:52,058 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:05:52,059 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_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b [2023-11-19 08:05:52,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:05:52,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:05:52,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:05:52,456 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:05:52,456 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:05:52,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2023-11-19 08:05:55,407 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:05:55,684 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:05:55,685 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2023-11-19 08:05:55,698 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/data/5ecdd3ee7/e7ebe4965cfd4774bfc069fb490695b0/FLAG60cb6c1a8 [2023-11-19 08:05:55,713 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/data/5ecdd3ee7/e7ebe4965cfd4774bfc069fb490695b0 [2023-11-19 08:05:55,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:05:55,717 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:05:55,718 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:55,719 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:05:55,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:05:55,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:55" (1/1) ... [2023-11-19 08:05:55,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f52d4e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:55, skipping insertion in model container [2023-11-19 08:05:55,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:55" (1/1) ... [2023-11-19 08:05:55,809 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:05:56,011 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_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[2141,2154] [2023-11-19 08:05:56,109 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:56,120 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:05:56,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-19 08:05:56,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] [2023-11-19 08:05:56,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] [2023-11-19 08:05:56,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [287] [2023-11-19 08:05:56,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [653] [2023-11-19 08:05:56,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [725] [2023-11-19 08:05:56,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [823] [2023-11-19 08:05:56,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [873] [2023-11-19 08:05:56,140 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_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[2141,2154] [2023-11-19 08:05:56,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:56,240 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:05:56,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:56 WrapperNode [2023-11-19 08:05:56,240 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:56,241 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:56,242 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:05:56,242 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:05:56,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:56" (1/1) ... [2023-11-19 08:05:56,264 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:56" (1/1) ... [2023-11-19 08:05:56,290 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 185 [2023-11-19 08:05:56,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:56,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:05:56,291 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:05:56,291 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:05:56,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:56" (1/1) ... [2023-11-19 08:05:56,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:56" (1/1) ... [2023-11-19 08:05:56,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:56" (1/1) ... [2023-11-19 08:05:56,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:56" (1/1) ... [2023-11-19 08:05:56,310 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:56" (1/1) ... [2023-11-19 08:05:56,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:56" (1/1) ... [2023-11-19 08:05:56,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:56" (1/1) ... [2023-11-19 08:05:56,318 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:56" (1/1) ... [2023-11-19 08:05:56,320 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:05:56,321 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:05:56,321 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:05:56,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:05:56,322 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:56" (1/1) ... [2023-11-19 08:05:56,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:56,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:56,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:05:56,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:05:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:05:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 08:05:56,397 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 08:05:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 08:05:56,398 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 08:05:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 08:05:56,398 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 08:05:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 08:05:56,398 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 08:05:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-11-19 08:05:56,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-11-19 08:05:56,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:05:56,399 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 08:05:56,399 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 08:05:56,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:05:56,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:05:56,480 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:05:56,483 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:05:56,754 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:05:56,763 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:05:56,763 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:05:56,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:56 BoogieIcfgContainer [2023-11-19 08:05:56,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:05:56,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:05:56,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:05:56,773 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:05:56,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:05:55" (1/3) ... [2023-11-19 08:05:56,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5076ca4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:56, skipping insertion in model container [2023-11-19 08:05:56,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:56" (2/3) ... [2023-11-19 08:05:56,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5076ca4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:56, skipping insertion in model container [2023-11-19 08:05:56,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:56" (3/3) ... [2023-11-19 08:05:56,777 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2023-11-19 08:05:56,797 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:05:56,797 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:05:56,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:05:56,862 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;@2eac561f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:05:56,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:05:56,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 67 states have (on average 1.373134328358209) internal successors, (92), 73 states have internal predecessors, (92), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 08:05:56,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 08:05:56,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:56,879 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] [2023-11-19 08:05:56,879 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:56,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:56,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1797931529, now seen corresponding path program 1 times [2023-11-19 08:05:56,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:56,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836706227] [2023-11-19 08:05:56,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:56,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:57,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 08:05:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:57,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 08:05:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:57,188 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 08:05:57,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:57,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836706227] [2023-11-19 08:05:57,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836706227] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:57,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:57,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:05:57,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123115077] [2023-11-19 08:05:57,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:57,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:05:57,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:57,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:05:57,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:05:57,250 INFO L87 Difference]: Start difference. First operand has 85 states, 67 states have (on average 1.373134328358209) internal successors, (92), 73 states have internal predecessors, (92), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 08:05:57,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:57,297 INFO L93 Difference]: Finished difference Result 161 states and 218 transitions. [2023-11-19 08:05:57,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:05:57,301 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2023-11-19 08:05:57,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:57,312 INFO L225 Difference]: With dead ends: 161 [2023-11-19 08:05:57,312 INFO L226 Difference]: Without dead ends: 76 [2023-11-19 08:05:57,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:05:57,322 INFO L413 NwaCegarLoop]: 106 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, 106 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:57,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:57,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-19 08:05:57,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-11-19 08:05:57,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 60 states have (on average 1.3) internal successors, (78), 65 states have internal predecessors, (78), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 08:05:57,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 97 transitions. [2023-11-19 08:05:57,410 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 97 transitions. Word has length 32 [2023-11-19 08:05:57,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:57,411 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 97 transitions. [2023-11-19 08:05:57,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 08:05:57,411 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2023-11-19 08:05:57,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 08:05:57,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:57,414 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] [2023-11-19 08:05:57,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:05:57,415 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:57,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:57,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1521544977, now seen corresponding path program 1 times [2023-11-19 08:05:57,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:57,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648202243] [2023-11-19 08:05:57,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:57,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:57,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 08:05:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:57,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 08:05:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:57,673 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 08:05:57,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:57,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648202243] [2023-11-19 08:05:57,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648202243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:57,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:57,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:05:57,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665795149] [2023-11-19 08:05:57,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:57,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:05:57,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:57,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:05:57,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:05:57,678 INFO L87 Difference]: Start difference. First operand 76 states and 97 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 08:05:57,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:57,693 INFO L93 Difference]: Finished difference Result 112 states and 143 transitions. [2023-11-19 08:05:57,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:05:57,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2023-11-19 08:05:57,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:57,695 INFO L225 Difference]: With dead ends: 112 [2023-11-19 08:05:57,695 INFO L226 Difference]: Without dead ends: 67 [2023-11-19 08:05:57,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:05:57,698 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 18 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:57,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 146 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:57,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-19 08:05:57,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-11-19 08:05:57,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 59 states have internal predecessors, (71), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 08:05:57,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2023-11-19 08:05:57,711 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 33 [2023-11-19 08:05:57,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:57,712 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2023-11-19 08:05:57,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 08:05:57,712 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2023-11-19 08:05:57,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 08:05:57,714 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:57,714 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] [2023-11-19 08:05:57,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:05:57,715 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:57,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:57,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1250979301, now seen corresponding path program 1 times [2023-11-19 08:05:57,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:57,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816537861] [2023-11-19 08:05:57,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:57,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:57,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 08:05:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:57,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 08:05:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:57,929 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 08:05:57,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:57,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816537861] [2023-11-19 08:05:57,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816537861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:57,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:57,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:05:57,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23233701] [2023-11-19 08:05:57,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:57,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:05:57,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:57,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:05:57,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:05:57,933 INFO L87 Difference]: Start difference. First operand 67 states and 85 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:57,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:57,965 INFO L93 Difference]: Finished difference Result 183 states and 238 transitions. [2023-11-19 08:05:57,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:05:57,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2023-11-19 08:05:57,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:57,968 INFO L225 Difference]: With dead ends: 183 [2023-11-19 08:05:57,969 INFO L226 Difference]: Without dead ends: 124 [2023-11-19 08:05:57,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:05:57,971 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 58 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:57,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 171 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:57,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-19 08:05:57,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 119. [2023-11-19 08:05:57,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 94 states have (on average 1.3404255319148937) internal successors, (126), 103 states have internal predecessors, (126), 14 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 08:05:57,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 154 transitions. [2023-11-19 08:05:57,995 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 154 transitions. Word has length 38 [2023-11-19 08:05:57,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:57,996 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 154 transitions. [2023-11-19 08:05:57,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:57,996 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 154 transitions. [2023-11-19 08:05:57,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 08:05:57,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:57,999 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] [2023-11-19 08:05:57,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:05:57,999 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:58,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:58,000 INFO L85 PathProgramCache]: Analyzing trace with hash 177136733, now seen corresponding path program 1 times [2023-11-19 08:05:58,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:58,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599258389] [2023-11-19 08:05:58,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:58,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:58,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 08:05:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:58,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-19 08:05:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:58,143 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:05:58,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:58,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599258389] [2023-11-19 08:05:58,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599258389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:58,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:58,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 08:05:58,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327856776] [2023-11-19 08:05:58,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:58,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:05:58,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:58,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:05:58,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:05:58,147 INFO L87 Difference]: Start difference. First operand 119 states and 154 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:58,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:58,329 INFO L93 Difference]: Finished difference Result 316 states and 416 transitions. [2023-11-19 08:05:58,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:05:58,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2023-11-19 08:05:58,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:58,334 INFO L225 Difference]: With dead ends: 316 [2023-11-19 08:05:58,334 INFO L226 Difference]: Without dead ends: 205 [2023-11-19 08:05:58,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:05:58,338 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 64 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:58,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 362 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:05:58,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-19 08:05:58,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 201. [2023-11-19 08:05:58,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 156 states have (on average 1.3012820512820513) internal successors, (203), 167 states have internal predecessors, (203), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2023-11-19 08:05:58,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 255 transitions. [2023-11-19 08:05:58,373 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 255 transitions. Word has length 41 [2023-11-19 08:05:58,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:58,373 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 255 transitions. [2023-11-19 08:05:58,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:58,373 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 255 transitions. [2023-11-19 08:05:58,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 08:05:58,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:58,376 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:58,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:05:58,377 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:58,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:58,377 INFO L85 PathProgramCache]: Analyzing trace with hash -413128686, now seen corresponding path program 1 times [2023-11-19 08:05:58,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:58,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801337975] [2023-11-19 08:05:58,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:58,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:58,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 08:05:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:58,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-19 08:05:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:58,572 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 08:05:58,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:58,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801337975] [2023-11-19 08:05:58,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801337975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:58,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:58,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:05:58,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940755445] [2023-11-19 08:05:58,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:58,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:05:58,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:58,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:05:58,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:05:58,578 INFO L87 Difference]: Start difference. First operand 201 states and 255 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:58,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:58,670 INFO L93 Difference]: Finished difference Result 422 states and 544 transitions. [2023-11-19 08:05:58,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:05:58,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2023-11-19 08:05:58,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:58,677 INFO L225 Difference]: With dead ends: 422 [2023-11-19 08:05:58,678 INFO L226 Difference]: Without dead ends: 229 [2023-11-19 08:05:58,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:05:58,692 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 13 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:58,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 363 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:58,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2023-11-19 08:05:58,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 207. [2023-11-19 08:05:58,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 162 states have (on average 1.2901234567901234) internal successors, (209), 173 states have internal predecessors, (209), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2023-11-19 08:05:58,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 261 transitions. [2023-11-19 08:05:58,738 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 261 transitions. Word has length 47 [2023-11-19 08:05:58,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:58,739 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 261 transitions. [2023-11-19 08:05:58,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:58,739 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 261 transitions. [2023-11-19 08:05:58,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 08:05:58,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:58,742 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:58,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:05:58,742 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:58,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:58,743 INFO L85 PathProgramCache]: Analyzing trace with hash -2001476588, now seen corresponding path program 1 times [2023-11-19 08:05:58,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:58,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714592962] [2023-11-19 08:05:58,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:58,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:58,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 08:05:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:58,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-19 08:05:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:58,881 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 08:05:58,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:58,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714592962] [2023-11-19 08:05:58,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714592962] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:58,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:58,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:05:58,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646781754] [2023-11-19 08:05:58,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:58,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:05:58,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:58,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:05:58,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:05:58,886 INFO L87 Difference]: Start difference. First operand 207 states and 261 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:58,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:58,936 INFO L93 Difference]: Finished difference Result 438 states and 564 transitions. [2023-11-19 08:05:58,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:05:58,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2023-11-19 08:05:58,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:58,942 INFO L225 Difference]: With dead ends: 438 [2023-11-19 08:05:58,942 INFO L226 Difference]: Without dead ends: 239 [2023-11-19 08:05:58,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:05:58,945 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 16 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:58,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 272 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:58,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-11-19 08:05:58,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 211. [2023-11-19 08:05:58,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 166 states have (on average 1.283132530120482) internal successors, (213), 177 states have internal predecessors, (213), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2023-11-19 08:05:58,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 265 transitions. [2023-11-19 08:05:58,988 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 265 transitions. Word has length 47 [2023-11-19 08:05:58,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:58,988 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 265 transitions. [2023-11-19 08:05:58,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:58,989 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 265 transitions. [2023-11-19 08:05:58,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 08:05:58,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:58,995 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:58,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:05:58,996 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:58,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:58,996 INFO L85 PathProgramCache]: Analyzing trace with hash 604546966, now seen corresponding path program 1 times [2023-11-19 08:05:58,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:58,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019205680] [2023-11-19 08:05:58,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:58,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:59,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 08:05:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:59,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-19 08:05:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:59,126 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 08:05:59,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:59,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019205680] [2023-11-19 08:05:59,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019205680] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:59,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:59,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:05:59,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061396158] [2023-11-19 08:05:59,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:59,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:05:59,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:59,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:05:59,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:05:59,128 INFO L87 Difference]: Start difference. First operand 211 states and 265 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:59,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:59,160 INFO L93 Difference]: Finished difference Result 508 states and 643 transitions. [2023-11-19 08:05:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:05:59,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2023-11-19 08:05:59,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:59,163 INFO L225 Difference]: With dead ends: 508 [2023-11-19 08:05:59,164 INFO L226 Difference]: Without dead ends: 305 [2023-11-19 08:05:59,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:05:59,165 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 39 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:59,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 155 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:59,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-11-19 08:05:59,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2023-11-19 08:05:59,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 240 states have (on average 1.25) internal successors, (300), 253 states have internal predecessors, (300), 36 states have call successors, (36), 30 states have call predecessors, (36), 28 states have return successors, (40), 34 states have call predecessors, (40), 36 states have call successors, (40) [2023-11-19 08:05:59,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 376 transitions. [2023-11-19 08:05:59,189 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 376 transitions. Word has length 47 [2023-11-19 08:05:59,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:59,189 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 376 transitions. [2023-11-19 08:05:59,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:59,190 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 376 transitions. [2023-11-19 08:05:59,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 08:05:59,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:59,193 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:59,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:05:59,193 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:59,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:59,194 INFO L85 PathProgramCache]: Analyzing trace with hash -542316420, now seen corresponding path program 1 times [2023-11-19 08:05:59,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:59,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786700072] [2023-11-19 08:05:59,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:59,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:59,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 08:05:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:59,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-19 08:05:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:59,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 08:05:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:59,423 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 08:05:59,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:59,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786700072] [2023-11-19 08:05:59,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786700072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:59,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:59,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 08:05:59,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459969124] [2023-11-19 08:05:59,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:59,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:05:59,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:59,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:05:59,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:05:59,426 INFO L87 Difference]: Start difference. First operand 305 states and 376 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:05:59,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:59,737 INFO L93 Difference]: Finished difference Result 1006 states and 1283 transitions. [2023-11-19 08:05:59,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 08:05:59,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 51 [2023-11-19 08:05:59,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:59,743 INFO L225 Difference]: With dead ends: 1006 [2023-11-19 08:05:59,743 INFO L226 Difference]: Without dead ends: 803 [2023-11-19 08:05:59,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-19 08:05:59,746 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 246 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:59,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 544 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:05:59,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2023-11-19 08:05:59,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 771. [2023-11-19 08:05:59,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 610 states have (on average 1.2327868852459016) internal successors, (752), 647 states have internal predecessors, (752), 88 states have call successors, (88), 66 states have call predecessors, (88), 72 states have return successors, (108), 84 states have call predecessors, (108), 88 states have call successors, (108) [2023-11-19 08:05:59,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 948 transitions. [2023-11-19 08:05:59,812 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 948 transitions. Word has length 51 [2023-11-19 08:05:59,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:59,813 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 948 transitions. [2023-11-19 08:05:59,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:05:59,813 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 948 transitions. [2023-11-19 08:05:59,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 08:05:59,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:59,816 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:59,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 08:05:59,816 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:59,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:59,817 INFO L85 PathProgramCache]: Analyzing trace with hash 8311452, now seen corresponding path program 1 times [2023-11-19 08:05:59,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:59,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125254907] [2023-11-19 08:05:59,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:59,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:59,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 08:05:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:59,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 08:05:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:59,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:05:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:59,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 08:05:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:59,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-19 08:05:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:59,919 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 08:05:59,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:59,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125254907] [2023-11-19 08:05:59,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125254907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:59,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:59,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 08:05:59,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035062312] [2023-11-19 08:05:59,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:59,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:05:59,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:59,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:05:59,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:05:59,922 INFO L87 Difference]: Start difference. First operand 771 states and 948 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 08:06:00,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:00,188 INFO L93 Difference]: Finished difference Result 1319 states and 1618 transitions. [2023-11-19 08:06:00,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:06:00,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 81 [2023-11-19 08:06:00,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:00,192 INFO L225 Difference]: With dead ends: 1319 [2023-11-19 08:06:00,192 INFO L226 Difference]: Without dead ends: 556 [2023-11-19 08:06:00,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:06:00,195 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 179 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:00,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 295 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:06:00,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-11-19 08:06:00,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 540. [2023-11-19 08:06:00,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 426 states have (on average 1.2183098591549295) internal successors, (519), 452 states have internal predecessors, (519), 62 states have call successors, (62), 48 states have call predecessors, (62), 51 states have return successors, (72), 59 states have call predecessors, (72), 62 states have call successors, (72) [2023-11-19 08:06:00,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 653 transitions. [2023-11-19 08:06:00,250 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 653 transitions. Word has length 81 [2023-11-19 08:06:00,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:00,251 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 653 transitions. [2023-11-19 08:06:00,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 08:06:00,251 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 653 transitions. [2023-11-19 08:06:00,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 08:06:00,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:00,253 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:00,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 08:06:00,254 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:00,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:00,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1954817075, now seen corresponding path program 1 times [2023-11-19 08:06:00,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:00,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052286074] [2023-11-19 08:06:00,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:00,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:00,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 08:06:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:00,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 08:06:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:00,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:00,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-19 08:06:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:00,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 08:06:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-19 08:06:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:00,470 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 08:06:00,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:00,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052286074] [2023-11-19 08:06:00,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052286074] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:06:00,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376467437] [2023-11-19 08:06:00,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:00,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:00,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:00,473 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:06:00,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:06:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:00,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 08:06:00,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:00,779 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:00,779 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:06:00,983 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 08:06:00,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376467437] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:06:00,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:06:00,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 14 [2023-11-19 08:06:00,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579225913] [2023-11-19 08:06:00,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:06:00,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 08:06:00,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:00,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 08:06:00,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:06:00,987 INFO L87 Difference]: Start difference. First operand 540 states and 653 transitions. Second operand has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 10 states have internal predecessors, (118), 6 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-19 08:06:01,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:01,993 INFO L93 Difference]: Finished difference Result 1121 states and 1388 transitions. [2023-11-19 08:06:01,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-19 08:06:01,995 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 10 states have internal predecessors, (118), 6 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) Word has length 83 [2023-11-19 08:06:01,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:02,001 INFO L225 Difference]: With dead ends: 1121 [2023-11-19 08:06:02,001 INFO L226 Difference]: Without dead ends: 668 [2023-11-19 08:06:02,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 178 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=393, Invalid=1499, Unknown=0, NotChecked=0, Total=1892 [2023-11-19 08:06:02,006 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 368 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:02,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 775 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 08:06:02,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2023-11-19 08:06:02,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 580. [2023-11-19 08:06:02,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 449 states have (on average 1.2026726057906458) internal successors, (540), 479 states have internal predecessors, (540), 71 states have call successors, (71), 60 states have call predecessors, (71), 59 states have return successors, (77), 62 states have call predecessors, (77), 71 states have call successors, (77) [2023-11-19 08:06:02,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 688 transitions. [2023-11-19 08:06:02,091 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 688 transitions. Word has length 83 [2023-11-19 08:06:02,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:02,093 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 688 transitions. [2023-11-19 08:06:02,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 10 states have internal predecessors, (118), 6 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-19 08:06:02,093 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 688 transitions. [2023-11-19 08:06:02,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-19 08:06:02,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:02,102 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:02,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:02,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 08:06:02,316 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:02,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:02,316 INFO L85 PathProgramCache]: Analyzing trace with hash 57448184, now seen corresponding path program 1 times [2023-11-19 08:06:02,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:02,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808864722] [2023-11-19 08:06:02,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:02,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 08:06:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 08:06:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 08:06:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 08:06:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 08:06:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 08:06:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-19 08:06:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-19 08:06:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-19 08:06:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,753 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 119 proven. 8 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-19 08:06:02,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:02,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808864722] [2023-11-19 08:06:02,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808864722] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:06:02,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814879051] [2023-11-19 08:06:02,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:02,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:02,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:02,756 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:06:02,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 08:06:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 08:06:02,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:03,185 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 177 proven. 4 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-11-19 08:06:03,186 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:06:03,690 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 114 proven. 61 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-19 08:06:03,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814879051] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:06:03,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:06:03,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2023-11-19 08:06:03,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866337240] [2023-11-19 08:06:03,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:06:03,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-19 08:06:03,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:03,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-19 08:06:03,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2023-11-19 08:06:03,695 INFO L87 Difference]: Start difference. First operand 580 states and 688 transitions. Second operand has 25 states, 25 states have (on average 8.8) internal successors, (220), 22 states have internal predecessors, (220), 9 states have call successors, (22), 8 states have call predecessors, (22), 9 states have return successors, (24), 8 states have call predecessors, (24), 9 states have call successors, (24) [2023-11-19 08:06:04,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:04,500 INFO L93 Difference]: Finished difference Result 1348 states and 1641 transitions. [2023-11-19 08:06:04,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-19 08:06:04,501 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.8) internal successors, (220), 22 states have internal predecessors, (220), 9 states have call successors, (22), 8 states have call predecessors, (22), 9 states have return successors, (24), 8 states have call predecessors, (24), 9 states have call successors, (24) Word has length 178 [2023-11-19 08:06:04,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:04,502 INFO L225 Difference]: With dead ends: 1348 [2023-11-19 08:06:04,502 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 08:06:04,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 374 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=357, Invalid=1283, Unknown=0, NotChecked=0, Total=1640 [2023-11-19 08:06:04,506 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 421 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:04,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 1142 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 08:06:04,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 08:06:04,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 08:06:04,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:04,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 08:06:04,508 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2023-11-19 08:06:04,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:04,509 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:06:04,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.8) internal successors, (220), 22 states have internal predecessors, (220), 9 states have call successors, (22), 8 states have call predecessors, (22), 9 states have return successors, (24), 8 states have call predecessors, (24), 9 states have call successors, (24) [2023-11-19 08:06:04,509 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 08:06:04,509 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 08:06:04,512 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 08:06:04,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-19 08:06:04,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 08:06:04,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 08:06:07,273 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 140 146) no Hoare annotation was computed. [2023-11-19 08:06:07,273 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 140 146) the Hoare annotation is: true [2023-11-19 08:06:07,273 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 900 911) the Hoare annotation is: true [2023-11-19 08:06:07,273 INFO L899 garLoopResultBuilder]: For program point L904-1(lines 900 911) no Hoare annotation was computed. [2023-11-19 08:06:07,273 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 900 911) no Hoare annotation was computed. [2023-11-19 08:06:07,274 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 727 756) no Hoare annotation was computed. [2023-11-19 08:06:07,274 INFO L902 garLoopResultBuilder]: At program point L737-2(lines 737 751) the Hoare annotation is: true [2023-11-19 08:06:07,274 INFO L902 garLoopResultBuilder]: At program point L733(line 733) the Hoare annotation is: true [2023-11-19 08:06:07,274 INFO L899 garLoopResultBuilder]: For program point L733-1(line 733) no Hoare annotation was computed. [2023-11-19 08:06:07,274 INFO L899 garLoopResultBuilder]: For program point L752(lines 727 756) no Hoare annotation was computed. [2023-11-19 08:06:07,274 INFO L899 garLoopResultBuilder]: For program point L748(line 748) no Hoare annotation was computed. [2023-11-19 08:06:07,274 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 727 756) the Hoare annotation is: true [2023-11-19 08:06:07,274 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 745) no Hoare annotation was computed. [2023-11-19 08:06:07,274 INFO L902 garLoopResultBuilder]: At program point L741-1(lines 741 745) the Hoare annotation is: true [2023-11-19 08:06:07,275 INFO L899 garLoopResultBuilder]: For program point L738(line 738) no Hoare annotation was computed. [2023-11-19 08:06:07,275 INFO L899 garLoopResultBuilder]: For program point L254(lines 254 258) no Hoare annotation was computed. [2023-11-19 08:06:07,275 INFO L899 garLoopResultBuilder]: For program point L254-2(lines 254 258) no Hoare annotation was computed. [2023-11-19 08:06:07,275 INFO L899 garLoopResultBuilder]: For program point L857(lines 857 863) no Hoare annotation was computed. [2023-11-19 08:06:07,275 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 113 139) no Hoare annotation was computed. [2023-11-19 08:06:07,275 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 953 966) no Hoare annotation was computed. [2023-11-19 08:06:07,275 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 127 133) no Hoare annotation was computed. [2023-11-19 08:06:07,275 INFO L899 garLoopResultBuilder]: For program point L957(lines 957 963) no Hoare annotation was computed. [2023-11-19 08:06:07,275 INFO L899 garLoopResultBuilder]: For program point L156(lines 156 164) no Hoare annotation was computed. [2023-11-19 08:06:07,275 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 169) no Hoare annotation was computed. [2023-11-19 08:06:07,276 INFO L899 garLoopResultBuilder]: For program point getWaterLevel_returnLabel#1(lines 944 952) no Hoare annotation was computed. [2023-11-19 08:06:07,276 INFO L895 garLoopResultBuilder]: At program point L854(line 854) the Hoare annotation is: (let ((.cse8 (<= 1 ~pumpRunning~0)) (.cse12 (<= 1 ~switchedOnBeforeTS~0)) (.cse9 (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|)) (.cse13 (<= ~waterLevel~0 1)) (.cse10 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| ~waterLevel~0)) (.cse11 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (< 2 |old(~waterLevel~0)|)) (.cse3 (and (= ~pumpRunning~0 0) .cse9 .cse13 .cse10 .cse11)) (.cse7 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (< |old(~pumpRunning~0)| 1)) (.cse6 (and .cse8 .cse9 .cse13 (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) .cse10 .cse12))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5 .cse6) (or (< 1 |old(~waterLevel~0)|) .cse7 .cse1 .cse5 .cse6 (and .cse8 .cse9 .cse10 .cse11 .cse12)) (or .cse1 .cse4 .cse5 (= |timeShift_getWaterLevel_#res#1| 1)) (or .cse0 .cse2 .cse3 (not (= 0 ~systemActive~0))) (or (not (= |old(~waterLevel~0)| 1)) .cse7 .cse1 .cse5 .cse6)))) [2023-11-19 08:06:07,276 INFO L899 garLoopResultBuilder]: For program point L854-1(line 854) no Hoare annotation was computed. [2023-11-19 08:06:07,276 INFO L899 garLoopResultBuilder]: For program point activatePump_returnLabel#1(lines 173 180) no Hoare annotation was computed. [2023-11-19 08:06:07,277 INFO L899 garLoopResultBuilder]: For program point L120(lines 120 126) no Hoare annotation was computed. [2023-11-19 08:06:07,277 INFO L899 garLoopResultBuilder]: For program point L120-2(lines 116 138) no Hoare annotation was computed. [2023-11-19 08:06:07,277 INFO L899 garLoopResultBuilder]: For program point L880(lines 880 884) no Hoare annotation was computed. [2023-11-19 08:06:07,277 INFO L899 garLoopResultBuilder]: For program point L880-2(lines 876 887) no Hoare annotation was computed. [2023-11-19 08:06:07,277 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 88 95) no Hoare annotation was computed. [2023-11-19 08:06:07,277 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 113 139) the Hoare annotation is: (let ((.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (< |old(~pumpRunning~0)| 1)) (.cse5 (and (= ~pumpRunning~0 0) .cse3 .cse4)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (< 2 |old(~waterLevel~0)|))) (and (or (< 1 |old(~waterLevel~0)|) (< |old(~switchedOnBeforeTS~0)| 1) .cse0 .cse1 (and .cse2 .cse3 .cse4)) (or .cse5 .cse6 .cse0 .cse7) (or .cse0 (and .cse2 (= 2 ~waterLevel~0) .cse3) (not (= |old(~waterLevel~0)| 2)) .cse1) (or .cse5 .cse6 .cse7 (not (= 0 ~systemActive~0)))))) [2023-11-19 08:06:07,278 INFO L895 garLoopResultBuilder]: At program point L839(line 839) the Hoare annotation is: (let ((.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (< |old(~pumpRunning~0)| 1)) (.cse5 (and (= ~pumpRunning~0 0) .cse3 .cse4)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (< 2 |old(~waterLevel~0)|))) (and (or (< 1 |old(~waterLevel~0)|) (< |old(~switchedOnBeforeTS~0)| 1) .cse0 .cse1 (and .cse2 .cse3 .cse4)) (or .cse5 .cse6 .cse0 .cse7) (or .cse0 (and .cse2 (= 2 ~waterLevel~0) .cse3) (not (= |old(~waterLevel~0)| 2)) .cse1) (or .cse5 .cse6 .cse7 (not (= 0 ~systemActive~0)))))) [2023-11-19 08:06:07,278 INFO L899 garLoopResultBuilder]: For program point L839-1(line 839) no Hoare annotation was computed. [2023-11-19 08:06:07,278 INFO L895 garLoopResultBuilder]: At program point L162(line 162) the Hoare annotation is: (let ((.cse2 (< |old(~pumpRunning~0)| 1)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~waterLevel~0)| 2))) (.cse5 (= |timeShift_processEnvironment_~tmp~0#1| 0)) (.cse6 (= ~pumpRunning~0 0)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 .cse2 .cse3) (or (< 1 |old(~waterLevel~0)|) .cse4 .cse0 (and .cse5 .cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse4 .cse0 .cse1 (and .cse5 .cse6 (= 2 ~waterLevel~0))) (or .cse4 .cse3 (not (= 0 ~systemActive~0))))) [2023-11-19 08:06:07,278 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 245 263) no Hoare annotation was computed. [2023-11-19 08:06:07,278 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2023-11-19 08:06:07,278 INFO L899 garLoopResultBuilder]: For program point L856(lines 856 866) no Hoare annotation was computed. [2023-11-19 08:06:07,278 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 869) no Hoare annotation was computed. [2023-11-19 08:06:07,278 INFO L899 garLoopResultBuilder]: For program point L852-1(lines 844 872) no Hoare annotation was computed. [2023-11-19 08:06:07,279 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification5_spec__2_returnLabel#1(lines 834 843) no Hoare annotation was computed. [2023-11-19 08:06:07,279 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 113 139) no Hoare annotation was computed. [2023-11-19 08:06:07,279 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2023-11-19 08:06:07,279 INFO L895 garLoopResultBuilder]: At program point L167(line 167) the Hoare annotation is: (let ((.cse6 (<= 1 ~pumpRunning~0)) (.cse7 (<= 1 ~switchedOnBeforeTS~0)) (.cse8 (= 1 ~systemActive~0))) (let ((.cse0 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse1 (not .cse8)) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse3 (and .cse6 (<= ~waterLevel~0 1) .cse8 (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) .cse7)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5) (or .cse1 (not (= |old(~waterLevel~0)| 2)) .cse2 (and .cse6 (= ~waterLevel~0 1) .cse7)) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 (and .cse6 (= |old(~waterLevel~0)| ~waterLevel~0) .cse7) .cse2 .cse3) (or .cse4 .cse5 (not (= 0 ~systemActive~0)))))) [2023-11-19 08:06:07,279 INFO L899 garLoopResultBuilder]: For program point L167-1(lines 148 172) no Hoare annotation was computed. [2023-11-19 08:06:07,279 INFO L899 garLoopResultBuilder]: For program point startSystem_returnLabel#1(lines 279 286) no Hoare annotation was computed. [2023-11-19 08:06:07,279 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 789 799) no Hoare annotation was computed. [2023-11-19 08:06:07,280 INFO L895 garLoopResultBuilder]: At program point L717(lines 666 718) the Hoare annotation is: false [2023-11-19 08:06:07,280 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 64 70) no Hoare annotation was computed. [2023-11-19 08:06:07,280 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 800 822) no Hoare annotation was computed. [2023-11-19 08:06:07,280 INFO L899 garLoopResultBuilder]: For program point L705(lines 705 711) no Hoare annotation was computed. [2023-11-19 08:06:07,280 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 08:06:07,280 INFO L895 garLoopResultBuilder]: At program point L705-2(lines 697 712) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse3 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 (= 0 ~systemActive~0)) (and .cse0 .cse3 .cse1 .cse2) (and .cse4 (= 2 ~waterLevel~0) .cse3 .cse1) (and .cse4 .cse3 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0)))) [2023-11-19 08:06:07,280 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 08:06:07,280 INFO L899 garLoopResultBuilder]: For program point L668(lines 667 716) no Hoare annotation was computed. [2023-11-19 08:06:07,281 INFO L899 garLoopResultBuilder]: For program point L697(lines 697 712) no Hoare annotation was computed. [2023-11-19 08:06:07,281 INFO L895 garLoopResultBuilder]: At program point L689(line 689) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse3 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 (= 0 ~systemActive~0)) (and .cse0 .cse3 .cse1 .cse2) (and .cse4 (= 2 ~waterLevel~0) .cse3 .cse1) (and .cse4 .cse3 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0)))) [2023-11-19 08:06:07,281 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 274) no Hoare annotation was computed. [2023-11-19 08:06:07,281 INFO L899 garLoopResultBuilder]: For program point L268-2(lines 268 274) no Hoare annotation was computed. [2023-11-19 08:06:07,281 INFO L895 garLoopResultBuilder]: At program point L714(lines 667 716) the Hoare annotation is: (let ((.cse3 (= 0 ~systemActive~0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse1 (= 2 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse5 (<= ~waterLevel~0 1)) (.cse6 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse5 .cse2 .cse3) (and .cse0 .cse1 .cse6 .cse2) (and .cse4 .cse1 .cse6 .cse2) (and .cse0 .cse5 .cse6 .cse2))) [2023-11-19 08:06:07,281 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 781 787) no Hoare annotation was computed. [2023-11-19 08:06:07,281 INFO L899 garLoopResultBuilder]: For program point L677(lines 677 683) no Hoare annotation was computed. [2023-11-19 08:06:07,281 INFO L899 garLoopResultBuilder]: For program point L677-1(lines 677 683) no Hoare annotation was computed. [2023-11-19 08:06:07,282 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 08:06:07,282 INFO L899 garLoopResultBuilder]: For program point L669(lines 669 673) no Hoare annotation was computed. [2023-11-19 08:06:07,282 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification5_spec__1_returnLabel#1(lines 826 833) no Hoare annotation was computed. [2023-11-19 08:06:07,282 INFO L899 garLoopResultBuilder]: For program point L810(lines 810 817) no Hoare annotation was computed. [2023-11-19 08:06:07,282 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 08:06:07,282 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 71 77) no Hoare annotation was computed. [2023-11-19 08:06:07,282 INFO L899 garLoopResultBuilder]: For program point L810-2(lines 810 817) no Hoare annotation was computed. [2023-11-19 08:06:07,282 INFO L899 garLoopResultBuilder]: For program point deactivatePump_returnLabel#1(lines 181 188) no Hoare annotation was computed. [2023-11-19 08:06:07,282 INFO L899 garLoopResultBuilder]: For program point stopSystem_returnLabel#1(lines 264 278) no Hoare annotation was computed. [2023-11-19 08:06:07,283 INFO L899 garLoopResultBuilder]: For program point L720(lines 657 724) no Hoare annotation was computed. [2023-11-19 08:06:07,283 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 693) no Hoare annotation was computed. [2023-11-19 08:06:07,283 INFO L899 garLoopResultBuilder]: For program point L687-1(lines 687 693) no Hoare annotation was computed. [2023-11-19 08:06:07,283 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 78 86) no Hoare annotation was computed. [2023-11-19 08:06:07,283 INFO L895 garLoopResultBuilder]: At program point L679(line 679) the Hoare annotation is: (let ((.cse3 (= 0 ~systemActive~0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse1 (= 2 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse5 (<= ~waterLevel~0 1)) (.cse6 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse5 .cse2 .cse3) (and .cse0 .cse1 .cse6 .cse2) (and .cse4 .cse1 .cse6 .cse2) (and .cse0 .cse5 .cse6 .cse2))) [2023-11-19 08:06:07,283 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 888 899) no Hoare annotation was computed. [2023-11-19 08:06:07,283 INFO L899 garLoopResultBuilder]: For program point L892-1(lines 888 899) no Hoare annotation was computed. [2023-11-19 08:06:07,284 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 888 899) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (< ~pumpRunning~0 1)) (.cse2 (not (= 1 ~systemActive~0))) (.cse6 (< 1 |old(~waterLevel~0)|)) (.cse4 (not (= ~pumpRunning~0 0))) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse3 .cse5) (or .cse6 .cse0 .cse2 (< ~switchedOnBeforeTS~0 1) .cse7) (or .cse6 .cse4 .cse2 .cse7) (or .cse6 .cse4 .cse7 .cse5))) [2023-11-19 08:06:07,284 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 200 208) no Hoare annotation was computed. [2023-11-19 08:06:07,284 INFO L899 garLoopResultBuilder]: For program point isPumpRunningFINAL(lines 200 208) no Hoare annotation was computed. [2023-11-19 08:06:07,284 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 200 208) the Hoare annotation is: true [2023-11-19 08:06:07,286 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:07,288 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:06:07,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:06:07 BoogieIcfgContainer [2023-11-19 08:06:07,300 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:06:07,301 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:06:07,301 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:06:07,301 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:06:07,302 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:56" (3/4) ... [2023-11-19 08:06:07,303 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:06:07,307 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-19 08:06:07,307 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-19 08:06:07,307 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-19 08:06:07,307 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-19 08:06:07,308 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-19 08:06:07,308 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-11-19 08:06:07,314 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-19 08:06:07,315 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 08:06:07,316 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 08:06:07,316 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:06:07,317 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:06:07,442 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:06:07,444 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:06:07,446 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:06:07,447 INFO L158 Benchmark]: Toolchain (without parser) took 11729.67ms. Allocated memory was 148.9MB in the beginning and 262.1MB in the end (delta: 113.2MB). Free memory was 114.1MB in the beginning and 153.1MB in the end (delta: -39.0MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2023-11-19 08:06:07,447 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 148.9MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:06:07,447 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.27ms. Allocated memory is still 148.9MB. Free memory was 113.6MB in the beginning and 106.1MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 08:06:07,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.87ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 103.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:06:07,448 INFO L158 Benchmark]: Boogie Preprocessor took 29.85ms. Allocated memory is still 148.9MB. Free memory was 103.6MB in the beginning and 102.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:06:07,449 INFO L158 Benchmark]: RCFGBuilder took 446.44ms. Allocated memory is still 148.9MB. Free memory was 102.3MB in the beginning and 86.4MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 08:06:07,449 INFO L158 Benchmark]: TraceAbstraction took 10530.66ms. Allocated memory was 148.9MB in the beginning and 262.1MB in the end (delta: 113.2MB). Free memory was 85.6MB in the beginning and 159.4MB in the end (delta: -73.8MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. [2023-11-19 08:06:07,450 INFO L158 Benchmark]: Witness Printer took 144.97ms. Allocated memory is still 262.1MB. Free memory was 159.4MB in the beginning and 153.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 08:06:07,453 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 148.9MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 522.27ms. Allocated memory is still 148.9MB. Free memory was 113.6MB in the beginning and 106.1MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.87ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 103.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.85ms. Allocated memory is still 148.9MB. Free memory was 103.6MB in the beginning and 102.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 446.44ms. Allocated memory is still 148.9MB. Free memory was 102.3MB in the beginning and 86.4MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 10530.66ms. Allocated memory was 148.9MB in the beginning and 262.1MB in the end (delta: 113.2MB). Free memory was 85.6MB in the beginning and 159.4MB in the end (delta: -73.8MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. * Witness Printer took 144.97ms. Allocated memory is still 262.1MB. Free memory was 159.4MB in the beginning and 153.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] - GenericResultAtLocation [Line: 287]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [287] - GenericResultAtLocation [Line: 653]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [653] - GenericResultAtLocation [Line: 725]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [725] - GenericResultAtLocation [Line: 823]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [823] - GenericResultAtLocation [Line: 873]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [873] * 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: 92]: 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 7 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.5s, OverallIterations: 11, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1454 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1422 mSDsluCounter, 4331 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3181 mSDsCounter, 377 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1513 IncrementalHoareTripleChecker+Invalid, 1890 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 377 mSolverCounterUnsat, 1150 mSDtfsCounter, 1513 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 742 GetRequests, 615 SyntacticMatches, 7 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=771occurred in iteration=8, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 195 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 792 PreInvPairs, 886 NumberOfFragments, 959 HoareAnnotationTreeSize, 792 FomulaSimplifications, 2410 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 18 FomulaSimplificationsInter, 5568 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 939 NumberOfCodeBlocks, 939 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1185 ConstructedInterpolants, 0 QuantifiedInterpolants, 2419 SizeOfPredicates, 6 NumberOfNonLiveVariables, 848 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 858/961 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: 666]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: (((((((((pumpRunning == 0) && (2 == waterLevel)) && (splverifierCounter == 0)) && (0 == systemActive)) || (((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (splverifierCounter == 0)) && (0 == systemActive))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 737]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-19 08:06:07,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f820e1d-fbdd-4f6e-8b5e-12854c4ca6a8/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