./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl --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 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:17:36,802 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:17:36,911 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:17:36,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:17:36,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:17:36,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:17:36,963 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:17:36,964 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:17:36,965 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:17:36,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:17:36,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:17:36,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:17:36,973 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:17:36,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:17:36,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:17:36,976 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:17:36,976 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:17:36,977 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:17:36,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:17:36,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:17:36,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:17:36,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:17:36,979 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:17:36,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:17:36,980 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:17:36,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:17:36,982 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:17:36,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:17:36,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:36,983 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:17:36,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:17:36,985 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:17:36,985 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:17:36,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:17:36,985 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:17:36,986 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:17:36,986 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:17:36,986 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:17:36,986 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:17:36,987 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_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 [2023-11-12 02:17:37,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:17:37,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:17:37,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:17:37,337 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:17:37,338 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:17:37,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2023-11-12 02:17:40,559 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:17:40,912 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:17:40,920 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2023-11-12 02:17:40,941 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/data/3d3865590/b152d8860bb748bb9ec6fe7449362712/FLAGda84a4aa4 [2023-11-12 02:17:40,963 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/data/3d3865590/b152d8860bb748bb9ec6fe7449362712 [2023-11-12 02:17:40,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:17:40,968 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:17:40,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:40,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:17:40,982 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:17:40,983 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:40" (1/1) ... [2023-11-12 02:17:40,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b8bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:40, skipping insertion in model container [2023-11-12 02:17:40,984 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:40" (1/1) ... [2023-11-12 02:17:41,033 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:17:41,242 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_6e99d2b4-56ec-4909-8c94-07d93a4962ad/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2023-11-12 02:17:41,325 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:41,344 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:17:41,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2023-11-12 02:17:41,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2023-11-12 02:17:41,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [343] [2023-11-12 02:17:41,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [383] [2023-11-12 02:17:41,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [421] [2023-11-12 02:17:41,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [525] [2023-11-12 02:17:41,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [622] [2023-11-12 02:17:41,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [631] [2023-11-12 02:17:41,410 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_6e99d2b4-56ec-4909-8c94-07d93a4962ad/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2023-11-12 02:17:41,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:41,486 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:17:41,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:41 WrapperNode [2023-11-12 02:17:41,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:41,487 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:41,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:17:41,488 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:17:41,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:41" (1/1) ... [2023-11-12 02:17:41,523 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:41" (1/1) ... [2023-11-12 02:17:41,568 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 209 [2023-11-12 02:17:41,569 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:41,570 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:17:41,570 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:17:41,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:17:41,580 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:41" (1/1) ... [2023-11-12 02:17:41,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:41" (1/1) ... [2023-11-12 02:17:41,583 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:41" (1/1) ... [2023-11-12 02:17:41,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:41" (1/1) ... [2023-11-12 02:17:41,589 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:41" (1/1) ... [2023-11-12 02:17:41,598 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:41" (1/1) ... [2023-11-12 02:17:41,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:41" (1/1) ... [2023-11-12 02:17:41,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:41" (1/1) ... [2023-11-12 02:17:41,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:17:41,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:17:41,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:17:41,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:17:41,621 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:41" (1/1) ... [2023-11-12 02:17:41,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:41,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:41,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:17:41,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:17:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:17:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-12 02:17:41,706 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-12 02:17:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-12 02:17:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-12 02:17:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-12 02:17:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-12 02:17:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-12 02:17:41,708 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-12 02:17:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:17:41,708 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:17:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-12 02:17:41,708 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-12 02:17:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-12 02:17:41,709 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-12 02:17:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:17:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-12 02:17:41,709 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-12 02:17:41,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:17:41,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:17:41,791 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:17:41,793 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:17:42,097 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:17:42,105 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:17:42,106 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:17:42,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:42 BoogieIcfgContainer [2023-11-12 02:17:42,108 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:17:42,111 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:17:42,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:17:42,120 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:17:42,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:17:40" (1/3) ... [2023-11-12 02:17:42,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202fb9ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:42, skipping insertion in model container [2023-11-12 02:17:42,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:41" (2/3) ... [2023-11-12 02:17:42,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202fb9ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:42, skipping insertion in model container [2023-11-12 02:17:42,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:42" (3/3) ... [2023-11-12 02:17:42,123 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product51.cil.c [2023-11-12 02:17:42,144 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:17:42,145 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:17:42,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:42,212 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;@2e74ce65, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:42,212 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:17:42,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 81 states have internal predecessors, (100), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 02:17:42,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:17:42,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:42,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:42,228 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:42,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:42,234 INFO L85 PathProgramCache]: Analyzing trace with hash -6194419, now seen corresponding path program 1 times [2023-11-12 02:17:42,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:42,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328093242] [2023-11-12 02:17:42,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:42,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:42,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:17:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:42,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:42,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:42,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328093242] [2023-11-12 02:17:42,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328093242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:42,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:42,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:17:42,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467026544] [2023-11-12 02:17:42,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:42,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:17:42,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:42,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:17:42,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:17:42,621 INFO L87 Difference]: Start difference. First operand has 95 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 81 states have internal predecessors, (100), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:17:42,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:42,685 INFO L93 Difference]: Finished difference Result 181 states and 246 transitions. [2023-11-12 02:17:42,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:17:42,688 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-12 02:17:42,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:42,699 INFO L225 Difference]: With dead ends: 181 [2023-11-12 02:17:42,700 INFO L226 Difference]: Without dead ends: 86 [2023-11-12 02:17:42,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:17:42,712 INFO L413 NwaCegarLoop]: 120 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, 120 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 [2023-11-12 02:17:42,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:42,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-12 02:17:42,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-12 02:17:42,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 65 states have (on average 1.323076923076923) internal successors, (86), 73 states have internal predecessors, (86), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-12 02:17:42,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2023-11-12 02:17:42,771 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 25 [2023-11-12 02:17:42,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:42,773 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2023-11-12 02:17:42,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:17:42,775 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2023-11-12 02:17:42,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-12 02:17:42,780 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:42,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:42,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:17:42,782 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:42,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:42,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1341011652, now seen corresponding path program 1 times [2023-11-12 02:17:42,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:42,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718232777] [2023-11-12 02:17:42,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:42,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:42,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:17:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:42,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:42,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:42,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718232777] [2023-11-12 02:17:42,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718232777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:42,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:42,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:17:42,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104045549] [2023-11-12 02:17:42,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:42,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:42,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:42,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:42,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:42,960 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:17:42,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:42,985 INFO L93 Difference]: Finished difference Result 133 states and 171 transitions. [2023-11-12 02:17:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:42,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-11-12 02:17:42,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:42,989 INFO L225 Difference]: With dead ends: 133 [2023-11-12 02:17:42,989 INFO L226 Difference]: Without dead ends: 77 [2023-11-12 02:17:42,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:42,992 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 16 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 175 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 [2023-11-12 02:17:42,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 175 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:42,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-12 02:17:43,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-12 02:17:43,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 67 states have internal predecessors, (79), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-12 02:17:43,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2023-11-12 02:17:43,009 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 26 [2023-11-12 02:17:43,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:43,010 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2023-11-12 02:17:43,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:17:43,010 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2023-11-12 02:17:43,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 02:17:43,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:43,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:43,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:17:43,013 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:43,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:43,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1026962067, now seen corresponding path program 1 times [2023-11-12 02:17:43,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:43,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442787468] [2023-11-12 02:17:43,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:43,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:43,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:17:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:43,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:43,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:43,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442787468] [2023-11-12 02:17:43,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442787468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:43,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:43,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:17:43,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596309713] [2023-11-12 02:17:43,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:43,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:17:43,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:43,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:17:43,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:17:43,207 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:17:43,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:43,422 INFO L93 Difference]: Finished difference Result 257 states and 338 transitions. [2023-11-12 02:17:43,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:17:43,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-11-12 02:17:43,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:43,428 INFO L225 Difference]: With dead ends: 257 [2023-11-12 02:17:43,428 INFO L226 Difference]: Without dead ends: 188 [2023-11-12 02:17:43,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:17:43,431 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 203 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:43,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 491 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:43,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-12 02:17:43,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 182. [2023-11-12 02:17:43,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 137 states have (on average 1.3722627737226278) internal successors, (188), 155 states have internal predecessors, (188), 25 states have call successors, (25), 19 states have call predecessors, (25), 19 states have return successors, (26), 17 states have call predecessors, (26), 25 states have call successors, (26) [2023-11-12 02:17:43,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 239 transitions. [2023-11-12 02:17:43,496 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 239 transitions. Word has length 30 [2023-11-12 02:17:43,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:43,497 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 239 transitions. [2023-11-12 02:17:43,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:17:43,497 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 239 transitions. [2023-11-12 02:17:43,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 02:17:43,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:43,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:43,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:17:43,506 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:43,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:43,507 INFO L85 PathProgramCache]: Analyzing trace with hash 591965277, now seen corresponding path program 1 times [2023-11-12 02:17:43,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:43,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292345140] [2023-11-12 02:17:43,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:43,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:43,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:17:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:43,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:43,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:43,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292345140] [2023-11-12 02:17:43,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292345140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:43,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:43,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:17:43,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131972516] [2023-11-12 02:17:43,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:43,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:17:43,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:43,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:17:43,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:43,668 INFO L87 Difference]: Start difference. First operand 182 states and 239 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:17:43,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:43,761 INFO L93 Difference]: Finished difference Result 442 states and 594 transitions. [2023-11-12 02:17:43,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:17:43,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2023-11-12 02:17:43,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:43,766 INFO L225 Difference]: With dead ends: 442 [2023-11-12 02:17:43,766 INFO L226 Difference]: Without dead ends: 268 [2023-11-12 02:17:43,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:43,771 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 53 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:43,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 357 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:43,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-12 02:17:43,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 255. [2023-11-12 02:17:43,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 192 states have (on average 1.3125) internal successors, (252), 209 states have internal predecessors, (252), 32 states have call successors, (32), 30 states have call predecessors, (32), 30 states have return successors, (42), 29 states have call predecessors, (42), 32 states have call successors, (42) [2023-11-12 02:17:43,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 326 transitions. [2023-11-12 02:17:43,818 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 326 transitions. Word has length 34 [2023-11-12 02:17:43,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:43,818 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 326 transitions. [2023-11-12 02:17:43,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:17:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 326 transitions. [2023-11-12 02:17:43,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-12 02:17:43,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:43,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:43,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:17:43,821 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:43,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:43,822 INFO L85 PathProgramCache]: Analyzing trace with hash -2050243753, now seen corresponding path program 1 times [2023-11-12 02:17:43,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:43,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598063608] [2023-11-12 02:17:43,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:43,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:43,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:17:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:44,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:44,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:44,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598063608] [2023-11-12 02:17:44,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598063608] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:44,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:44,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:17:44,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423409304] [2023-11-12 02:17:44,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:44,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:17:44,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:44,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:17:44,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:17:44,019 INFO L87 Difference]: Start difference. First operand 255 states and 326 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:17:44,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:44,283 INFO L93 Difference]: Finished difference Result 562 states and 730 transitions. [2023-11-12 02:17:44,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:17:44,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2023-11-12 02:17:44,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:44,293 INFO L225 Difference]: With dead ends: 562 [2023-11-12 02:17:44,293 INFO L226 Difference]: Without dead ends: 315 [2023-11-12 02:17:44,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:17:44,306 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 62 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:44,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 357 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:17:44,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-12 02:17:44,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 307. [2023-11-12 02:17:44,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 234 states have (on average 1.2905982905982907) internal successors, (302), 251 states have internal predecessors, (302), 36 states have call successors, (36), 30 states have call predecessors, (36), 36 states have return successors, (52), 37 states have call predecessors, (52), 36 states have call successors, (52) [2023-11-12 02:17:44,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 390 transitions. [2023-11-12 02:17:44,356 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 390 transitions. Word has length 44 [2023-11-12 02:17:44,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:44,358 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 390 transitions. [2023-11-12 02:17:44,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:17:44,359 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 390 transitions. [2023-11-12 02:17:44,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-12 02:17:44,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:44,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:44,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:17:44,370 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:44,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:44,371 INFO L85 PathProgramCache]: Analyzing trace with hash 555779801, now seen corresponding path program 1 times [2023-11-12 02:17:44,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:44,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017316122] [2023-11-12 02:17:44,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:44,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:44,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:17:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:44,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:44,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:44,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:44,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017316122] [2023-11-12 02:17:44,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017316122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:44,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:44,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:17:44,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795328040] [2023-11-12 02:17:44,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:44,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:17:44,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:44,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:17:44,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:44,534 INFO L87 Difference]: Start difference. First operand 307 states and 390 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:17:44,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:44,706 INFO L93 Difference]: Finished difference Result 624 states and 813 transitions. [2023-11-12 02:17:44,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:17:44,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2023-11-12 02:17:44,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:44,711 INFO L225 Difference]: With dead ends: 624 [2023-11-12 02:17:44,711 INFO L226 Difference]: Without dead ends: 325 [2023-11-12 02:17:44,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:44,717 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 64 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:44,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 280 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:44,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-11-12 02:17:44,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 311. [2023-11-12 02:17:44,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 238 states have (on average 1.2857142857142858) internal successors, (306), 255 states have internal predecessors, (306), 36 states have call successors, (36), 30 states have call predecessors, (36), 36 states have return successors, (52), 37 states have call predecessors, (52), 36 states have call successors, (52) [2023-11-12 02:17:44,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 394 transitions. [2023-11-12 02:17:44,761 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 394 transitions. Word has length 44 [2023-11-12 02:17:44,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:44,761 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 394 transitions. [2023-11-12 02:17:44,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:17:44,762 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 394 transitions. [2023-11-12 02:17:44,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-12 02:17:44,763 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:44,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:44,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:17:44,763 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:44,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:44,764 INFO L85 PathProgramCache]: Analyzing trace with hash 978481627, now seen corresponding path program 1 times [2023-11-12 02:17:44,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:44,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762709170] [2023-11-12 02:17:44,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:44,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:44,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:17:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:44,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:44,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:44,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:44,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762709170] [2023-11-12 02:17:44,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762709170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:44,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:44,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:17:44,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392809088] [2023-11-12 02:17:44,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:44,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:17:44,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:44,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:17:44,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:44,856 INFO L87 Difference]: Start difference. First operand 311 states and 394 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:17:45,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:45,150 INFO L93 Difference]: Finished difference Result 924 states and 1218 transitions. [2023-11-12 02:17:45,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:17:45,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2023-11-12 02:17:45,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:45,156 INFO L225 Difference]: With dead ends: 924 [2023-11-12 02:17:45,156 INFO L226 Difference]: Without dead ends: 621 [2023-11-12 02:17:45,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:45,159 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 214 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:45,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 300 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:17:45,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2023-11-12 02:17:45,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 614. [2023-11-12 02:17:45,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 466 states have (on average 1.2553648068669527) internal successors, (585), 495 states have internal predecessors, (585), 75 states have call successors, (75), 71 states have call predecessors, (75), 72 states have return successors, (120), 73 states have call predecessors, (120), 75 states have call successors, (120) [2023-11-12 02:17:45,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 780 transitions. [2023-11-12 02:17:45,222 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 780 transitions. Word has length 44 [2023-11-12 02:17:45,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:45,222 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 780 transitions. [2023-11-12 02:17:45,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:17:45,223 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 780 transitions. [2023-11-12 02:17:45,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-12 02:17:45,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:45,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:45,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:17:45,225 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:45,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:45,225 INFO L85 PathProgramCache]: Analyzing trace with hash 319309813, now seen corresponding path program 1 times [2023-11-12 02:17:45,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:45,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897778893] [2023-11-12 02:17:45,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:45,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:45,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:17:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:45,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:17:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:45,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:17:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:45,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:45,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:45,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897778893] [2023-11-12 02:17:45,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897778893] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:45,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:45,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:17:45,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699282977] [2023-11-12 02:17:45,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:45,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:17:45,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:45,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:17:45,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:45,337 INFO L87 Difference]: Start difference. First operand 614 states and 780 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:17:45,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:45,802 INFO L93 Difference]: Finished difference Result 1205 states and 1620 transitions. [2023-11-12 02:17:45,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:17:45,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2023-11-12 02:17:45,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:45,812 INFO L225 Difference]: With dead ends: 1205 [2023-11-12 02:17:45,812 INFO L226 Difference]: Without dead ends: 1203 [2023-11-12 02:17:45,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:17:45,814 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 302 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:45,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 227 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:17:45,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2023-11-12 02:17:45,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1063. [2023-11-12 02:17:45,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 808 states have (on average 1.25990099009901) internal successors, (1018), 869 states have internal predecessors, (1018), 134 states have call successors, (134), 104 states have call predecessors, (134), 120 states have return successors, (290), 125 states have call predecessors, (290), 134 states have call successors, (290) [2023-11-12 02:17:45,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1442 transitions. [2023-11-12 02:17:45,947 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1442 transitions. Word has length 48 [2023-11-12 02:17:45,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:45,948 INFO L495 AbstractCegarLoop]: Abstraction has 1063 states and 1442 transitions. [2023-11-12 02:17:45,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:17:45,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1442 transitions. [2023-11-12 02:17:45,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-12 02:17:45,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:45,953 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-12 02:17:45,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:17:45,954 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:45,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:45,954 INFO L85 PathProgramCache]: Analyzing trace with hash 706311904, now seen corresponding path program 1 times [2023-11-12 02:17:45,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:45,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873251910] [2023-11-12 02:17:45,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:45,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:46,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:17:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:46,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:17:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:46,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:17:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:46,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-12 02:17:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:46,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-12 02:17:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:46,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:17:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:46,192 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-12 02:17:46,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:46,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873251910] [2023-11-12 02:17:46,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873251910] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:46,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337875460] [2023-11-12 02:17:46,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:46,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:46,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:46,199 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:46,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:17:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:46,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:17:46,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:46,522 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:46,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:17:46,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337875460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:46,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:17:46,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2023-11-12 02:17:46,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329367153] [2023-11-12 02:17:46,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:46,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:46,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:46,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:46,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:17:46,526 INFO L87 Difference]: Start difference. First operand 1063 states and 1442 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-12 02:17:46,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:46,631 INFO L93 Difference]: Finished difference Result 1868 states and 2582 transitions. [2023-11-12 02:17:46,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:46,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 86 [2023-11-12 02:17:46,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:46,639 INFO L225 Difference]: With dead ends: 1868 [2023-11-12 02:17:46,641 INFO L226 Difference]: Without dead ends: 944 [2023-11-12 02:17:46,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:17:46,648 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 42 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:46,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 206 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:46,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2023-11-12 02:17:46,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 944. [2023-11-12 02:17:46,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 716 states have (on average 1.2318435754189945) internal successors, (882), 769 states have internal predecessors, (882), 119 states have call successors, (119), 99 states have call predecessors, (119), 108 states have return successors, (188), 109 states have call predecessors, (188), 119 states have call successors, (188) [2023-11-12 02:17:46,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1189 transitions. [2023-11-12 02:17:46,739 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1189 transitions. Word has length 86 [2023-11-12 02:17:46,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:46,740 INFO L495 AbstractCegarLoop]: Abstraction has 944 states and 1189 transitions. [2023-11-12 02:17:46,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-12 02:17:46,740 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1189 transitions. [2023-11-12 02:17:46,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-12 02:17:46,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:46,745 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:46,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:46,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-12 02:17:46,957 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:46,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:46,958 INFO L85 PathProgramCache]: Analyzing trace with hash -2067995951, now seen corresponding path program 1 times [2023-11-12 02:17:46,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:46,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241711613] [2023-11-12 02:17:46,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:46,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:47,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:17:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:47,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:17:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:47,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:17:47,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:47,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-12 02:17:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:47,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-12 02:17:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:47,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:17:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:47,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:17:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:47,225 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 02:17:47,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:47,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241711613] [2023-11-12 02:17:47,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241711613] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:47,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673314731] [2023-11-12 02:17:47,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:47,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:47,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:47,228 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:47,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:17:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:47,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:17:47,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:47,413 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:17:47,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:17:47,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673314731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:47,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:17:47,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-11-12 02:17:47,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805871338] [2023-11-12 02:17:47,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:47,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:17:47,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:47,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:17:47,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:17:47,416 INFO L87 Difference]: Start difference. First operand 944 states and 1189 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:17:47,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:47,544 INFO L93 Difference]: Finished difference Result 1821 states and 2347 transitions. [2023-11-12 02:17:47,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:17:47,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2023-11-12 02:17:47,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:47,552 INFO L225 Difference]: With dead ends: 1821 [2023-11-12 02:17:47,552 INFO L226 Difference]: Without dead ends: 1016 [2023-11-12 02:17:47,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:17:47,556 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 13 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 415 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 [2023-11-12 02:17:47,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 415 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:47,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2023-11-12 02:17:47,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 968. [2023-11-12 02:17:47,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 740 states have (on average 1.2243243243243243) internal successors, (906), 793 states have internal predecessors, (906), 119 states have call successors, (119), 99 states have call predecessors, (119), 108 states have return successors, (188), 109 states have call predecessors, (188), 119 states have call successors, (188) [2023-11-12 02:17:47,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1213 transitions. [2023-11-12 02:17:47,644 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1213 transitions. Word has length 89 [2023-11-12 02:17:47,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:47,645 INFO L495 AbstractCegarLoop]: Abstraction has 968 states and 1213 transitions. [2023-11-12 02:17:47,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:17:47,645 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1213 transitions. [2023-11-12 02:17:47,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-12 02:17:47,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:47,648 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:47,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:47,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:17:47,854 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:47,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:47,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1933982445, now seen corresponding path program 1 times [2023-11-12 02:17:47,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:47,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423285464] [2023-11-12 02:17:47,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:47,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:47,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:17:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:17:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:17:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-12 02:17:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-12 02:17:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:17:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:17:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,077 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:17:48,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:48,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423285464] [2023-11-12 02:17:48,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423285464] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:48,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156697214] [2023-11-12 02:17:48,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:48,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:48,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:48,079 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:48,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:17:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 02:17:48,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:48,331 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:48,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:17:48,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156697214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:48,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:17:48,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-11-12 02:17:48,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032003558] [2023-11-12 02:17:48,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:48,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:17:48,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:48,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:17:48,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:17:48,334 INFO L87 Difference]: Start difference. First operand 968 states and 1213 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 02:17:48,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:48,482 INFO L93 Difference]: Finished difference Result 1540 states and 1945 transitions. [2023-11-12 02:17:48,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:17:48,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 89 [2023-11-12 02:17:48,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:48,488 INFO L225 Difference]: With dead ends: 1540 [2023-11-12 02:17:48,488 INFO L226 Difference]: Without dead ends: 711 [2023-11-12 02:17:48,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:17:48,492 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 132 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:48,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 495 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:48,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2023-11-12 02:17:48,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 663. [2023-11-12 02:17:48,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 508 states have (on average 1.2224409448818898) internal successors, (621), 540 states have internal predecessors, (621), 75 states have call successors, (75), 73 states have call predecessors, (75), 79 states have return successors, (109), 75 states have call predecessors, (109), 75 states have call successors, (109) [2023-11-12 02:17:48,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 805 transitions. [2023-11-12 02:17:48,548 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 805 transitions. Word has length 89 [2023-11-12 02:17:48,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:48,549 INFO L495 AbstractCegarLoop]: Abstraction has 663 states and 805 transitions. [2023-11-12 02:17:48,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 02:17:48,549 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 805 transitions. [2023-11-12 02:17:48,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-12 02:17:48,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:48,552 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-12 02:17:48,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:48,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:48,759 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:48,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:48,760 INFO L85 PathProgramCache]: Analyzing trace with hash 692072967, now seen corresponding path program 1 times [2023-11-12 02:17:48,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:48,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565803734] [2023-11-12 02:17:48,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:48,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:17:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:17:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:17:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-12 02:17:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:17:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-12 02:17:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-12 02:17:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,843 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 02:17:48,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:48,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565803734] [2023-11-12 02:17:48,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565803734] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:48,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769926798] [2023-11-12 02:17:48,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:48,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:48,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:48,846 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:48,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:17:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:17:48,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:48,978 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-12 02:17:48,979 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:17:48,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769926798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:48,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:17:48,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2023-11-12 02:17:48,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961098852] [2023-11-12 02:17:48,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:48,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:48,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:48,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:48,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:17:48,981 INFO L87 Difference]: Start difference. First operand 663 states and 805 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:17:49,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:49,014 INFO L93 Difference]: Finished difference Result 822 states and 1010 transitions. [2023-11-12 02:17:49,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:49,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 94 [2023-11-12 02:17:49,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:49,015 INFO L225 Difference]: With dead ends: 822 [2023-11-12 02:17:49,015 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:17:49,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:17:49,018 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 38 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:49,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 198 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:49,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:17:49,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:17:49,019 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) [2023-11-12 02:17:49,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:17:49,019 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 94 [2023-11-12 02:17:49,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:49,019 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:17:49,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:17:49,020 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:17:49,020 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:17:49,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:17:49,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:49,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:49,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:17:51,212 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 226 233) no Hoare annotation was computed. [2023-11-12 02:17:51,213 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 226 233) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (< |old(~pumpRunning~0)| 1))) (and (or .cse0 (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) .cse1) (or .cse0 .cse1 (< ~waterLevel~0 2) (= 0 ~systemActive~0)))) [2023-11-12 02:17:51,213 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 226 233) no Hoare annotation was computed. [2023-11-12 02:17:51,213 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 159 165) no Hoare annotation was computed. [2023-11-12 02:17:51,213 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 159 165) the Hoare annotation is: true [2023-11-12 02:17:51,214 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 449 460) the Hoare annotation is: true [2023-11-12 02:17:51,214 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 449 460) no Hoare annotation was computed. [2023-11-12 02:17:51,214 INFO L899 garLoopResultBuilder]: For program point L453-1(lines 449 460) no Hoare annotation was computed. [2023-11-12 02:17:51,214 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 461 469) the Hoare annotation is: true [2023-11-12 02:17:51,214 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 461 469) no Hoare annotation was computed. [2023-11-12 02:17:51,214 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 461 469) no Hoare annotation was computed. [2023-11-12 02:17:51,214 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 527 556) no Hoare annotation was computed. [2023-11-12 02:17:51,214 INFO L899 garLoopResultBuilder]: For program point L541(lines 541 545) no Hoare annotation was computed. [2023-11-12 02:17:51,214 INFO L902 garLoopResultBuilder]: At program point L541-1(lines 541 545) the Hoare annotation is: true [2023-11-12 02:17:51,214 INFO L899 garLoopResultBuilder]: For program point L538(line 538) no Hoare annotation was computed. [2023-11-12 02:17:51,215 INFO L902 garLoopResultBuilder]: At program point L537-2(lines 537 551) the Hoare annotation is: true [2023-11-12 02:17:51,215 INFO L902 garLoopResultBuilder]: At program point L533(line 533) the Hoare annotation is: true [2023-11-12 02:17:51,215 INFO L899 garLoopResultBuilder]: For program point L533-1(line 533) no Hoare annotation was computed. [2023-11-12 02:17:51,215 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 527 556) the Hoare annotation is: true [2023-11-12 02:17:51,215 INFO L899 garLoopResultBuilder]: For program point L552(lines 527 556) no Hoare annotation was computed. [2023-11-12 02:17:51,215 INFO L899 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2023-11-12 02:17:51,215 INFO L899 garLoopResultBuilder]: For program point L366(lines 366 376) no Hoare annotation was computed. [2023-11-12 02:17:51,215 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDry_returnLabel#1(lines 516 524) no Hoare annotation was computed. [2023-11-12 02:17:51,215 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 138 157) no Hoare annotation was computed. [2023-11-12 02:17:51,216 INFO L899 garLoopResultBuilder]: For program point L362(lines 362 379) no Hoare annotation was computed. [2023-11-12 02:17:51,216 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 209) no Hoare annotation was computed. [2023-11-12 02:17:51,216 INFO L899 garLoopResultBuilder]: For program point L362-1(lines 354 382) no Hoare annotation was computed. [2023-11-12 02:17:51,216 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 135 158) no Hoare annotation was computed. [2023-11-12 02:17:51,216 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 214) no Hoare annotation was computed. [2023-11-12 02:17:51,216 INFO L899 garLoopResultBuilder]: For program point L627(line 627) no Hoare annotation was computed. [2023-11-12 02:17:51,216 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 373) no Hoare annotation was computed. [2023-11-12 02:17:51,216 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 433) no Hoare annotation was computed. [2023-11-12 02:17:51,216 INFO L899 garLoopResultBuilder]: For program point L429-2(lines 425 436) no Hoare annotation was computed. [2023-11-12 02:17:51,216 INFO L899 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2023-11-12 02:17:51,217 INFO L899 garLoopResultBuilder]: For program point L318-2(lines 318 322) no Hoare annotation was computed. [2023-11-12 02:17:51,217 INFO L895 garLoopResultBuilder]: At program point L207(line 207) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 (not (= |old(~waterLevel~0)| 1)) .cse2) (or .cse4 .cse1 (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse3 (< |old(~waterLevel~0)| 1) .cse4))) [2023-11-12 02:17:51,217 INFO L895 garLoopResultBuilder]: At program point L203(line 203) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 (not (= |old(~waterLevel~0)| 1)) .cse2) (or .cse4 .cse1 (< |old(~pumpRunning~0)| 1) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 ~waterLevel~0))) (or .cse0 .cse3 (< |old(~waterLevel~0)| 1) .cse4))) [2023-11-12 02:17:51,217 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 623 630) no Hoare annotation was computed. [2023-11-12 02:17:51,218 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 135 158) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (= 1 ~systemActive~0))) (.cse7 (< |old(~waterLevel~0)| 2)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (< |old(~waterLevel~0)| 1)) (.cse4 (and .cse5 (= ~methAndRunningLastTime~0 0) .cse6)) (.cse8 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 (and .cse5 .cse6) .cse7 .cse8) (or .cse3 .cse7 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6) (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 .cse2 .cse4 .cse8)))) [2023-11-12 02:17:51,218 INFO L895 garLoopResultBuilder]: At program point L360(line 360) the Hoare annotation is: (let ((.cse9 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse7 (and .cse2 .cse10)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (and .cse2 .cse9 (= ~waterLevel~0 1))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse6 (not (= |old(~waterLevel~0)| 1))) (.cse8 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 (< |old(~pumpRunning~0)| 1) (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse2 (<= 1 ~waterLevel~0))) (or .cse3 .cse4 .cse5 .cse6 .cse0) (or .cse3 .cse7 .cse1 .cse8) (or .cse3 .cse5 .cse7 .cse0 (and (<= 1 ~pumpRunning~0) .cse9 .cse10) .cse1) (or .cse3 .cse4 .cse5 .cse6 .cse8)))) [2023-11-12 02:17:51,218 INFO L899 garLoopResultBuilder]: For program point L360-1(line 360) no Hoare annotation was computed. [2023-11-12 02:17:51,218 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevel_returnLabel#1(lines 309 327) no Hoare annotation was computed. [2023-11-12 02:17:51,218 INFO L895 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 (not (= |old(~waterLevel~0)| 1)) .cse2) (or .cse0 .cse3 (< |old(~waterLevel~0)| 1) .cse4 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse4 .cse1 (< |old(~pumpRunning~0)| 1)))) [2023-11-12 02:17:51,218 INFO L899 garLoopResultBuilder]: For program point L212-1(lines 193 217) no Hoare annotation was computed. [2023-11-12 02:17:51,219 INFO L899 garLoopResultBuilder]: For program point L146-1(lines 146 152) no Hoare annotation was computed. [2023-11-12 02:17:51,219 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 135 158) no Hoare annotation was computed. [2023-11-12 02:17:51,219 INFO L899 garLoopResultBuilder]: For program point isPumpRunning_returnLabel#1(lines 245 253) no Hoare annotation was computed. [2023-11-12 02:17:51,220 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 627) no Hoare annotation was computed. [2023-11-12 02:17:51,220 INFO L899 garLoopResultBuilder]: For program point L609(lines 609 616) no Hoare annotation was computed. [2023-11-12 02:17:51,221 INFO L899 garLoopResultBuilder]: For program point L609-2(lines 609 616) no Hoare annotation was computed. [2023-11-12 02:17:51,221 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2023-11-12 02:17:51,221 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 85 91) no Hoare annotation was computed. [2023-11-12 02:17:51,221 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 588 598) no Hoare annotation was computed. [2023-11-12 02:17:51,221 INFO L895 garLoopResultBuilder]: At program point L110(lines 65 112) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~6#1| 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (<= 1 ~waterLevel~0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse4 .cse5 .cse3 .cse6 (= 0 ~systemActive~0)) (and .cse0 .cse4 .cse5 .cse1 .cse2 .cse3 .cse6))) [2023-11-12 02:17:51,222 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~6#1| 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (<= 1 ~waterLevel~0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse4 .cse5 .cse3 .cse6 (= 0 ~systemActive~0)) (and .cse0 .cse4 .cse5 .cse1 .cse2 .cse3 .cse6))) [2023-11-12 02:17:51,222 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 398 404) no Hoare annotation was computed. [2023-11-12 02:17:51,222 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 599 621) no Hoare annotation was computed. [2023-11-12 02:17:51,222 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:17:51,222 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:17:51,223 INFO L895 garLoopResultBuilder]: At program point L334(line 334) the Hoare annotation is: (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2023-11-12 02:17:51,223 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 581 587) no Hoare annotation was computed. [2023-11-12 02:17:51,223 INFO L899 garLoopResultBuilder]: For program point L66(lines 65 112) no Hoare annotation was computed. [2023-11-12 02:17:51,223 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:17:51,223 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 108) no Hoare annotation was computed. [2023-11-12 02:17:51,224 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~6#1| 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (<= 1 ~waterLevel~0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse4 .cse5 .cse3 .cse6 (= 0 ~systemActive~0)) (and .cse0 .cse4 .cse5 .cse1 .cse2 .cse3 .cse6))) [2023-11-12 02:17:51,224 INFO L899 garLoopResultBuilder]: For program point L116(lines 55 120) no Hoare annotation was computed. [2023-11-12 02:17:51,224 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2023-11-12 02:17:51,224 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2023-11-12 02:17:51,224 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:17:51,224 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 405 411) no Hoare annotation was computed. [2023-11-12 02:17:51,225 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 71) no Hoare annotation was computed. [2023-11-12 02:17:51,225 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__1_returnLabel#1(lines 346 353) no Hoare annotation was computed. [2023-11-12 02:17:51,225 INFO L899 garLoopResultBuilder]: For program point stopSystem_returnLabel#1(lines 328 342) no Hoare annotation was computed. [2023-11-12 02:17:51,225 INFO L895 garLoopResultBuilder]: At program point L113(lines 64 114) the Hoare annotation is: false [2023-11-12 02:17:51,225 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 338) no Hoare annotation was computed. [2023-11-12 02:17:51,225 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 412 420) no Hoare annotation was computed. [2023-11-12 02:17:51,226 INFO L899 garLoopResultBuilder]: For program point L332-1(lines 332 338) no Hoare annotation was computed. [2023-11-12 02:17:51,226 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 107) no Hoare annotation was computed. [2023-11-12 02:17:51,226 INFO L895 garLoopResultBuilder]: At program point L101-2(lines 95 108) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse3 (= 0 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_main_~tmp~6#1| 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse7 (= ~methAndRunningLastTime~0 0)) (.cse5 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse6 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse8 (<= 1 ~waterLevel~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= 1 ~pumpRunning~0) .cse4 .cse5 .cse1 .cse6 .cse2) (and .cse0 .cse7 .cse2 .cse8 .cse3) (and .cse4 .cse0 .cse7 .cse5 .cse6 .cse2 .cse8))) [2023-11-12 02:17:51,226 INFO L899 garLoopResultBuilder]: For program point L506(lines 506 512) no Hoare annotation was computed. [2023-11-12 02:17:51,226 INFO L899 garLoopResultBuilder]: For program point activatePump_returnLabel#1(lines 218 225) no Hoare annotation was computed. [2023-11-12 02:17:51,227 INFO L895 garLoopResultBuilder]: At program point L186(line 186) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2023-11-12 02:17:51,227 INFO L899 garLoopResultBuilder]: For program point L186-1(lines 167 191) no Hoare annotation was computed. [2023-11-12 02:17:51,227 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 167 191) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2023-11-12 02:17:51,227 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 502 515) no Hoare annotation was computed. [2023-11-12 02:17:51,227 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 290 308) no Hoare annotation was computed. [2023-11-12 02:17:51,228 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 167 191) no Hoare annotation was computed. [2023-11-12 02:17:51,228 INFO L895 garLoopResultBuilder]: At program point L181(line 181) the Hoare annotation is: (let ((.cse4 (= 1 ~systemActive~0)) (.cse5 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse5)) (.cse1 (not .cse4)) (.cse2 (and (= ~pumpRunning~0 0) .cse4 .cse5 (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (< ~waterLevel~0 2) .cse2 .cse3)))) [2023-11-12 02:17:51,228 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 183) no Hoare annotation was computed. [2023-11-12 02:17:51,228 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 188) no Hoare annotation was computed. [2023-11-12 02:17:51,228 INFO L899 garLoopResultBuilder]: For program point L299(lines 299 303) no Hoare annotation was computed. [2023-11-12 02:17:51,228 INFO L899 garLoopResultBuilder]: For program point L299-2(lines 299 303) no Hoare annotation was computed. [2023-11-12 02:17:51,229 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 437 448) no Hoare annotation was computed. [2023-11-12 02:17:51,229 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 437 448) the Hoare annotation is: (let ((.cse4 (not (= 0 ~systemActive~0))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse5 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1) .cse3 .cse4) (or (< |old(~waterLevel~0)| 1) .cse0 .cse5 .cse2 .cse3) (or (< ~pumpRunning~0 1) .cse5 .cse1 .cse2))) [2023-11-12 02:17:51,229 INFO L899 garLoopResultBuilder]: For program point L441-1(lines 437 448) no Hoare annotation was computed. [2023-11-12 02:17:51,233 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:51,236 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:17:51,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:17:51 BoogieIcfgContainer [2023-11-12 02:17:51,257 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:17:51,258 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:17:51,258 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:17:51,258 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:17:51,259 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:42" (3/4) ... [2023-11-12 02:17:51,261 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:17:51,266 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-12 02:17:51,266 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-12 02:17:51,267 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-12 02:17:51,267 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-12 02:17:51,267 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-12 02:17:51,267 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-12 02:17:51,268 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:17:51,268 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-12 02:17:51,283 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-12 02:17:51,284 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-12 02:17:51,285 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 02:17:51,285 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:17:51,286 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:17:51,317 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 <= pumpRunning) && (tmp == 1)) && (\result == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (splverifierCounter == 0)) && (1 <= waterLevel)) && (0 == systemActive))) || (((((((tmp == 1) && (pumpRunning == 0)) && (methAndRunningLastTime == 0)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) [2023-11-12 02:17:51,375 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 <= pumpRunning) && (tmp == 1)) && (\result == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (splverifierCounter == 0)) && (1 <= waterLevel)) && (0 == systemActive))) || (((((((tmp == 1) && (pumpRunning == 0)) && (methAndRunningLastTime == 0)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) [2023-11-12 02:17:51,434 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:17:51,435 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:17:51,435 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:17:51,436 INFO L158 Benchmark]: Toolchain (without parser) took 10467.58ms. Allocated memory was 138.4MB in the beginning and 201.3MB in the end (delta: 62.9MB). Free memory was 100.9MB in the beginning and 144.4MB in the end (delta: -43.5MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2023-11-12 02:17:51,436 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory was 58.5MB in the beginning and 58.4MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:17:51,437 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.89ms. Allocated memory is still 138.4MB. Free memory was 100.9MB in the beginning and 81.1MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 02:17:51,437 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.48ms. Allocated memory is still 138.4MB. Free memory was 81.1MB in the beginning and 79.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:17:51,438 INFO L158 Benchmark]: Boogie Preprocessor took 36.69ms. Allocated memory is still 138.4MB. Free memory was 79.0MB in the beginning and 77.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:17:51,438 INFO L158 Benchmark]: RCFGBuilder took 500.50ms. Allocated memory is still 138.4MB. Free memory was 77.6MB in the beginning and 105.0MB in the end (delta: -27.4MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2023-11-12 02:17:51,439 INFO L158 Benchmark]: TraceAbstraction took 9146.76ms. Allocated memory was 138.4MB in the beginning and 201.3MB in the end (delta: 62.9MB). Free memory was 104.3MB in the beginning and 151.8MB in the end (delta: -47.5MB). Peak memory consumption was 117.2MB. Max. memory is 16.1GB. [2023-11-12 02:17:51,440 INFO L158 Benchmark]: Witness Printer took 177.07ms. Allocated memory is still 201.3MB. Free memory was 151.8MB in the beginning and 144.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:17:51,442 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory was 58.5MB in the beginning and 58.4MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 516.89ms. Allocated memory is still 138.4MB. Free memory was 100.9MB in the beginning and 81.1MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.48ms. Allocated memory is still 138.4MB. Free memory was 81.1MB in the beginning and 79.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.69ms. Allocated memory is still 138.4MB. Free memory was 79.0MB in the beginning and 77.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 500.50ms. Allocated memory is still 138.4MB. Free memory was 77.6MB in the beginning and 105.0MB in the end (delta: -27.4MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * TraceAbstraction took 9146.76ms. Allocated memory was 138.4MB in the beginning and 201.3MB in the end (delta: 62.9MB). Free memory was 104.3MB in the beginning and 151.8MB in the end (delta: -47.5MB). Peak memory consumption was 117.2MB. Max. memory is 16.1GB. * Witness Printer took 177.07ms. Allocated memory is still 201.3MB. Free memory was 151.8MB in the beginning and 144.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 343]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [343] - GenericResultAtLocation [Line: 383]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [383] - GenericResultAtLocation [Line: 421]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [421] - GenericResultAtLocation [Line: 525]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [525] - GenericResultAtLocation [Line: 622]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [622] - GenericResultAtLocation [Line: 631]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [631] * 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: 627]: 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 9 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1159 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1139 mSDsluCounter, 3621 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2322 mSDsCounter, 236 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 674 IncrementalHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 236 mSolverCounterUnsat, 1299 mSDtfsCounter, 674 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 519 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1063occurred in iteration=8, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 284 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 1104 PreInvPairs, 1158 NumberOfFragments, 872 HoareAnnotationTreeSize, 1104 FomulaSimplifications, 182 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 23 FomulaSimplificationsInter, 2755 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1011 NumberOfCodeBlocks, 1011 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 995 ConstructedInterpolants, 0 QuantifiedInterpolants, 1575 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1278 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 240/248 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: 65]: Loop Invariant Derived loop invariant: ((((((((1 <= pumpRunning) && (tmp == 1)) && (\result == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (splverifierCounter == 0)) && (1 <= waterLevel)) && (0 == systemActive))) || (((((((tmp == 1) && (pumpRunning == 0)) && (methAndRunningLastTime == 0)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) - InvariantResult [Line: 537]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-12 02:17:51,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e99d2b4-56ec-4909-8c94-07d93a4962ad/bin/uautomizer-verify-uTZkv6EMXl/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