./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/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_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/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_49a4234b-c26f-4b2f-8789-2ab34b0359dd/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 e91d5c860cfea17112af53939b2fffb1e4c536355098377ab18c754994d1bc2b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:15:11,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:15:11,556 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:15:11,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:15:11,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:15:11,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:15:11,624 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:15:11,625 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:15:11,626 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:15:11,628 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:15:11,629 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:15:11,630 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:15:11,631 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:15:11,634 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:15:11,635 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:15:11,635 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:15:11,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:15:11,639 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:15:11,639 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:15:11,644 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:15:11,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:15:11,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:15:11,646 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:15:11,646 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:15:11,647 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:15:11,647 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:15:11,648 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:15:11,649 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:15:11,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:11,650 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:15:11,650 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:15:11,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:15:11,652 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:15:11,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:15:11,653 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:15:11,654 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:15:11,655 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:15:11,655 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:15:11,655 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:15:11,656 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_49a4234b-c26f-4b2f-8789-2ab34b0359dd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e91d5c860cfea17112af53939b2fffb1e4c536355098377ab18c754994d1bc2b [2023-11-12 02:15:11,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:15:11,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:15:11,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:15:11,991 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:15:11,991 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:15:11,993 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2023-11-12 02:15:15,164 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:15:15,495 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:15:15,496 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2023-11-12 02:15:15,514 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/data/f56e4a381/3628373a6fe0471b8780c366f788631f/FLAGd36267822 [2023-11-12 02:15:15,532 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/data/f56e4a381/3628373a6fe0471b8780c366f788631f [2023-11-12 02:15:15,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:15:15,536 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:15:15,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:15,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:15:15,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:15:15,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:15" (1/1) ... [2023-11-12 02:15:15,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@735e6df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:15, skipping insertion in model container [2023-11-12 02:15:15,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:15" (1/1) ... [2023-11-12 02:15:15,617 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:15:15,934 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_49a4234b-c26f-4b2f-8789-2ab34b0359dd/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c[15987,16000] [2023-11-12 02:15:15,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:15,969 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:15:15,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-12 02:15:15,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [415] [2023-11-12 02:15:15,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [484] [2023-11-12 02:15:15,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [717] [2023-11-12 02:15:15,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [755] [2023-11-12 02:15:15,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [764] [2023-11-12 02:15:15,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [868] [2023-11-12 02:15:15,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [894] [2023-11-12 02:15:16,086 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_49a4234b-c26f-4b2f-8789-2ab34b0359dd/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c[15987,16000] [2023-11-12 02:15:16,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:16,128 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:15:16,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16 WrapperNode [2023-11-12 02:15:16,129 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:16,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:16,131 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:15:16,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:15:16,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,164 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,211 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 228 [2023-11-12 02:15:16,212 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:16,213 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:15:16,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:15:16,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:15:16,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,250 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,262 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,272 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:15:16,273 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:15:16,273 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:15:16,273 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:15:16,274 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:16,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:16,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:15:16,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:15:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:15:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-12 02:15:16,351 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-12 02:15:16,351 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-12 02:15:16,351 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-12 02:15:16,351 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-12 02:15:16,352 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-12 02:15:16,352 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:15:16,352 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:15:16,352 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-12 02:15:16,352 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-12 02:15:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-12 02:15:16,353 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-12 02:15:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-12 02:15:16,353 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-12 02:15:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:15:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-12 02:15:16,354 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-12 02:15:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:15:16,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:15:16,440 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:15:16,443 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:16,831 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:16,839 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:16,840 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:15:16,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:16 BoogieIcfgContainer [2023-11-12 02:15:16,842 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:16,846 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:16,846 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:16,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:16,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:15:15" (1/3) ... [2023-11-12 02:15:16,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ecc05a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:16, skipping insertion in model container [2023-11-12 02:15:16,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (2/3) ... [2023-11-12 02:15:16,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ecc05a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:16, skipping insertion in model container [2023-11-12 02:15:16,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:16" (3/3) ... [2023-11-12 02:15:16,853 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2023-11-12 02:15:16,875 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:16,875 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:15:16,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:15:16,939 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;@f858f85, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:15:16,940 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:15:16,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 81 states have internal predecessors, (99), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-12 02:15:16,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 02:15:16,952 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:16,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:16,953 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:16,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:16,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1446250138, now seen corresponding path program 1 times [2023-11-12 02:15:16,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:16,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825097066] [2023-11-12 02:15:16,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:16,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:17,234 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 02:15:17,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:17,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825097066] [2023-11-12 02:15:17,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825097066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:17,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:17,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:15:17,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232942552] [2023-11-12 02:15:17,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:17,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:15:17,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:17,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:15:17,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:15:17,294 INFO L87 Difference]: Start difference. First operand has 95 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 81 states have internal predecessors, (99), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:17,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:17,331 INFO L93 Difference]: Finished difference Result 182 states and 249 transitions. [2023-11-12 02:15:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:15:17,333 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-12 02:15:17,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:17,344 INFO L225 Difference]: With dead ends: 182 [2023-11-12 02:15:17,344 INFO L226 Difference]: Without dead ends: 86 [2023-11-12 02:15:17,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:15:17,353 INFO L413 NwaCegarLoop]: 121 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, 121 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 02:15:17,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:17,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-12 02:15:17,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-12 02:15:17,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.328125) internal successors, (85), 73 states have internal predecessors, (85), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 02:15:17,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 112 transitions. [2023-11-12 02:15:17,407 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 112 transitions. Word has length 19 [2023-11-12 02:15:17,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:17,407 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 112 transitions. [2023-11-12 02:15:17,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:17,408 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 112 transitions. [2023-11-12 02:15:17,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 02:15:17,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:17,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:17,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:15:17,412 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:17,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:17,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1941246016, now seen corresponding path program 1 times [2023-11-12 02:15:17,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:17,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663892013] [2023-11-12 02:15:17,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:17,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:17,573 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 02:15:17,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:17,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663892013] [2023-11-12 02:15:17,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663892013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:17,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:17,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:15:17,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620272291] [2023-11-12 02:15:17,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:17,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:15:17,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:17,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:15:17,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:17,580 INFO L87 Difference]: Start difference. First operand 86 states and 112 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:17,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:17,622 INFO L93 Difference]: Finished difference Result 138 states and 180 transitions. [2023-11-12 02:15:17,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:15:17,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-12 02:15:17,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:17,635 INFO L225 Difference]: With dead ends: 138 [2023-11-12 02:15:17,636 INFO L226 Difference]: Without dead ends: 77 [2023-11-12 02:15:17,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:17,640 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 12 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 182 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 02:15:17,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 182 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:17,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-12 02:15:17,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-12 02:15:17,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 67 states have internal predecessors, (78), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 6 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:15:17,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2023-11-12 02:15:17,668 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 20 [2023-11-12 02:15:17,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:17,668 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2023-11-12 02:15:17,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:17,669 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2023-11-12 02:15:17,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 02:15:17,670 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:17,670 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] [2023-11-12 02:15:17,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:15:17,671 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:17,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:17,672 INFO L85 PathProgramCache]: Analyzing trace with hash 626660710, now seen corresponding path program 1 times [2023-11-12 02:15:17,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:17,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627754537] [2023-11-12 02:15:17,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:17,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:17,957 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 02:15:17,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:17,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627754537] [2023-11-12 02:15:17,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627754537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:17,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:17,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:15:17,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976688594] [2023-11-12 02:15:17,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:17,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:15:17,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:17,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:15:17,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:15:17,968 INFO L87 Difference]: Start difference. First operand 77 states and 100 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:18,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:18,126 INFO L93 Difference]: Finished difference Result 147 states and 194 transitions. [2023-11-12 02:15:18,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:18,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-11-12 02:15:18,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:18,129 INFO L225 Difference]: With dead ends: 147 [2023-11-12 02:15:18,129 INFO L226 Difference]: Without dead ends: 77 [2023-11-12 02:15:18,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:15:18,132 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 187 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:18,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 209 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:15:18,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-12 02:15:18,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-12 02:15:18,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 67 states have internal predecessors, (77), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 6 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:15:18,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2023-11-12 02:15:18,152 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 24 [2023-11-12 02:15:18,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:18,152 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2023-11-12 02:15:18,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:18,153 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2023-11-12 02:15:18,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-12 02:15:18,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:18,156 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] [2023-11-12 02:15:18,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:15:18,156 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:18,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:18,157 INFO L85 PathProgramCache]: Analyzing trace with hash 222843713, now seen corresponding path program 1 times [2023-11-12 02:15:18,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:18,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840942009] [2023-11-12 02:15:18,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:18,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:18,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-12 02:15:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:18,244 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 02:15:18,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:18,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840942009] [2023-11-12 02:15:18,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840942009] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:18,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:18,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:15:18,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633813314] [2023-11-12 02:15:18,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:18,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:18,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:18,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:18,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:18,249 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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 02:15:18,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:18,410 INFO L93 Difference]: Finished difference Result 217 states and 282 transitions. [2023-11-12 02:15:18,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:18,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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 33 [2023-11-12 02:15:18,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:18,414 INFO L225 Difference]: With dead ends: 217 [2023-11-12 02:15:18,414 INFO L226 Difference]: Without dead ends: 147 [2023-11-12 02:15:18,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:18,417 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 137 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:18,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 196 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:15:18,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-12 02:15:18,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2023-11-12 02:15:18,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 108 states have (on average 1.287037037037037) internal successors, (139), 116 states have internal predecessors, (139), 14 states have call successors, (14), 13 states have call predecessors, (14), 18 states have return successors, (25), 16 states have call predecessors, (25), 14 states have call successors, (25) [2023-11-12 02:15:18,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 178 transitions. [2023-11-12 02:15:18,458 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 178 transitions. Word has length 33 [2023-11-12 02:15:18,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:18,459 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 178 transitions. [2023-11-12 02:15:18,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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 02:15:18,459 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 178 transitions. [2023-11-12 02:15:18,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-12 02:15:18,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:18,461 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] [2023-11-12 02:15:18,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:15:18,462 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:18,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:18,463 INFO L85 PathProgramCache]: Analyzing trace with hash 569930082, now seen corresponding path program 1 times [2023-11-12 02:15:18,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:18,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166583320] [2023-11-12 02:15:18,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:18,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:18,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:15:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:18,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:18,651 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 02:15:18,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:18,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166583320] [2023-11-12 02:15:18,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166583320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:18,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:18,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:15:18,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709063998] [2023-11-12 02:15:18,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:18,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:15:18,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:18,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:15:18,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:15:18,655 INFO L87 Difference]: Start difference. First operand 141 states and 178 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:15:18,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:18,840 INFO L93 Difference]: Finished difference Result 283 states and 365 transitions. [2023-11-12 02:15:18,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:15:18,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2023-11-12 02:15:18,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:18,844 INFO L225 Difference]: With dead ends: 283 [2023-11-12 02:15:18,844 INFO L226 Difference]: Without dead ends: 149 [2023-11-12 02:15:18,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:15:18,846 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 63 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:18,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 387 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:15:18,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-12 02:15:18,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 144. [2023-11-12 02:15:18,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 111 states have (on average 1.2792792792792793) internal successors, (142), 119 states have internal predecessors, (142), 14 states have call successors, (14), 13 states have call predecessors, (14), 18 states have return successors, (25), 16 states have call predecessors, (25), 14 states have call successors, (25) [2023-11-12 02:15:18,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 181 transitions. [2023-11-12 02:15:18,870 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 181 transitions. Word has length 43 [2023-11-12 02:15:18,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:18,871 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 181 transitions. [2023-11-12 02:15:18,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:15:18,871 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 181 transitions. [2023-11-12 02:15:18,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-12 02:15:18,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:18,873 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] [2023-11-12 02:15:18,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:15:18,873 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:18,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:18,874 INFO L85 PathProgramCache]: Analyzing trace with hash -451138272, now seen corresponding path program 1 times [2023-11-12 02:15:18,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:18,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876546497] [2023-11-12 02:15:18,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:18,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:18,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:15:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:18,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:19,034 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 02:15:19,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:19,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876546497] [2023-11-12 02:15:19,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876546497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:19,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:19,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:15:19,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840899551] [2023-11-12 02:15:19,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:19,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:15:19,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:19,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:15:19,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:19,037 INFO L87 Difference]: Start difference. First operand 144 states and 181 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:15:19,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:19,174 INFO L93 Difference]: Finished difference Result 291 states and 379 transitions. [2023-11-12 02:15:19,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:19,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2023-11-12 02:15:19,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:19,177 INFO L225 Difference]: With dead ends: 291 [2023-11-12 02:15:19,177 INFO L226 Difference]: Without dead ends: 154 [2023-11-12 02:15:19,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 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 02:15:19,179 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 66 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:19,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 302 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:15:19,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-12 02:15:19,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 146. [2023-11-12 02:15:19,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 113 states have (on average 1.2743362831858407) internal successors, (144), 121 states have internal predecessors, (144), 14 states have call successors, (14), 13 states have call predecessors, (14), 18 states have return successors, (25), 16 states have call predecessors, (25), 14 states have call successors, (25) [2023-11-12 02:15:19,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 183 transitions. [2023-11-12 02:15:19,199 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 183 transitions. Word has length 43 [2023-11-12 02:15:19,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:19,199 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 183 transitions. [2023-11-12 02:15:19,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:15:19,200 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 183 transitions. [2023-11-12 02:15:19,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-12 02:15:19,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:19,201 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] [2023-11-12 02:15:19,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:15:19,202 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:19,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:19,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1849684318, now seen corresponding path program 1 times [2023-11-12 02:15:19,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:19,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568623438] [2023-11-12 02:15:19,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:19,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:19,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:15:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:19,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:19,305 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 02:15:19,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:19,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568623438] [2023-11-12 02:15:19,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568623438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:19,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:19,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:15:19,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253843734] [2023-11-12 02:15:19,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:19,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:15:19,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:19,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:15:19,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:19,308 INFO L87 Difference]: Start difference. First operand 146 states and 183 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:15:19,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:19,549 INFO L93 Difference]: Finished difference Result 407 states and 536 transitions. [2023-11-12 02:15:19,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:15:19,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2023-11-12 02:15:19,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:19,553 INFO L225 Difference]: With dead ends: 407 [2023-11-12 02:15:19,554 INFO L226 Difference]: Without dead ends: 268 [2023-11-12 02:15:19,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 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 02:15:19,556 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 201 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:19,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 302 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:15:19,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-12 02:15:19,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 260. [2023-11-12 02:15:19,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 199 states have (on average 1.256281407035176) internal successors, (250), 211 states have internal predecessors, (250), 29 states have call successors, (29), 28 states have call predecessors, (29), 31 states have return successors, (55), 30 states have call predecessors, (55), 29 states have call successors, (55) [2023-11-12 02:15:19,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 334 transitions. [2023-11-12 02:15:19,602 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 334 transitions. Word has length 43 [2023-11-12 02:15:19,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:19,603 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 334 transitions. [2023-11-12 02:15:19,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:15:19,603 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 334 transitions. [2023-11-12 02:15:19,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-12 02:15:19,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:19,605 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] [2023-11-12 02:15:19,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:15:19,606 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:19,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:19,606 INFO L85 PathProgramCache]: Analyzing trace with hash -784742271, now seen corresponding path program 1 times [2023-11-12 02:15:19,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:19,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607993496] [2023-11-12 02:15:19,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:19,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:19,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:15:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:19,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:19,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:15:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:19,724 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 02:15:19,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:19,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607993496] [2023-11-12 02:15:19,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607993496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:19,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:19,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:15:19,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550844952] [2023-11-12 02:15:19,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:19,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:15:19,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:19,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:15:19,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:15:19,727 INFO L87 Difference]: Start difference. First operand 260 states and 334 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:15:19,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:19,954 INFO L93 Difference]: Finished difference Result 513 states and 660 transitions. [2023-11-12 02:15:19,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:15:19,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2023-11-12 02:15:19,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:19,961 INFO L225 Difference]: With dead ends: 513 [2023-11-12 02:15:19,961 INFO L226 Difference]: Without dead ends: 260 [2023-11-12 02:15:19,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:15:19,968 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 112 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:19,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 343 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:15:19,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-11-12 02:15:20,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2023-11-12 02:15:20,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 197 states have (on average 1.248730964467005) internal successors, (246), 209 states have internal predecessors, (246), 29 states have call successors, (29), 28 states have call predecessors, (29), 31 states have return successors, (55), 30 states have call predecessors, (55), 29 states have call successors, (55) [2023-11-12 02:15:20,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 330 transitions. [2023-11-12 02:15:20,010 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 330 transitions. Word has length 45 [2023-11-12 02:15:20,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:20,012 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 330 transitions. [2023-11-12 02:15:20,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:15:20,013 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 330 transitions. [2023-11-12 02:15:20,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 02:15:20,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:20,017 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] [2023-11-12 02:15:20,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:15:20,018 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:20,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:20,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1315447288, now seen corresponding path program 1 times [2023-11-12 02:15:20,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:20,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406638614] [2023-11-12 02:15:20,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:20,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:20,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:15:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:20,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:15:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:20,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:20,179 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 02:15:20,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:20,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406638614] [2023-11-12 02:15:20,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406638614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:20,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:20,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:15:20,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171432870] [2023-11-12 02:15:20,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:20,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:15:20,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:20,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:15:20,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:15:20,182 INFO L87 Difference]: Start difference. First operand 258 states and 330 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:15:20,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:20,785 INFO L93 Difference]: Finished difference Result 538 states and 711 transitions. [2023-11-12 02:15:20,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-12 02:15:20,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2023-11-12 02:15:20,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:20,789 INFO L225 Difference]: With dead ends: 538 [2023-11-12 02:15:20,789 INFO L226 Difference]: Without dead ends: 332 [2023-11-12 02:15:20,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:15:20,792 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 198 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:20,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 434 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:15:20,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-11-12 02:15:20,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 297. [2023-11-12 02:15:20,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 228 states have (on average 1.2236842105263157) internal successors, (279), 244 states have internal predecessors, (279), 32 states have call successors, (32), 28 states have call predecessors, (32), 36 states have return successors, (69), 34 states have call predecessors, (69), 32 states have call successors, (69) [2023-11-12 02:15:20,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 380 transitions. [2023-11-12 02:15:20,835 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 380 transitions. Word has length 47 [2023-11-12 02:15:20,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:20,836 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 380 transitions. [2023-11-12 02:15:20,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:15:20,836 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 380 transitions. [2023-11-12 02:15:20,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-12 02:15:20,838 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:20,839 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:20,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:15:20,839 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:20,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:20,840 INFO L85 PathProgramCache]: Analyzing trace with hash -949050969, now seen corresponding path program 1 times [2023-11-12 02:15:20,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:20,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041190134] [2023-11-12 02:15:20,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:20,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:20,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:15:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:20,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:15:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:15:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:20,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:20,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-12 02:15:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:20,967 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-12 02:15:20,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:20,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041190134] [2023-11-12 02:15:20,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041190134] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:15:20,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340931519] [2023-11-12 02:15:20,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:20,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:20,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:20,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:20,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:15:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:21,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:15:21,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:21,299 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:21,300 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:15:21,501 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:21,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340931519] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:15:21,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:15:21,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 12 [2023-11-12 02:15:21,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755661257] [2023-11-12 02:15:21,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:15:21,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:15:21,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:21,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:15:21,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:15:21,505 INFO L87 Difference]: Start difference. First operand 297 states and 380 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 9 states have internal predecessors, (101), 3 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-12 02:15:23,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:23,038 INFO L93 Difference]: Finished difference Result 717 states and 973 transitions. [2023-11-12 02:15:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-12 02:15:23,039 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 9 states have internal predecessors, (101), 3 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) Word has length 75 [2023-11-12 02:15:23,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:23,043 INFO L225 Difference]: With dead ends: 717 [2023-11-12 02:15:23,043 INFO L226 Difference]: Without dead ends: 474 [2023-11-12 02:15:23,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 166 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=481, Invalid=2275, Unknown=0, NotChecked=0, Total=2756 [2023-11-12 02:15:23,047 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 582 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:23,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 698 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-12 02:15:23,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-11-12 02:15:23,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 410. [2023-11-12 02:15:23,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 311 states have (on average 1.2186495176848875) internal successors, (379), 334 states have internal predecessors, (379), 47 states have call successors, (47), 41 states have call predecessors, (47), 51 states have return successors, (107), 46 states have call predecessors, (107), 47 states have call successors, (107) [2023-11-12 02:15:23,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 533 transitions. [2023-11-12 02:15:23,094 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 533 transitions. Word has length 75 [2023-11-12 02:15:23,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:23,095 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 533 transitions. [2023-11-12 02:15:23,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 9 states have internal predecessors, (101), 3 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-12 02:15:23,095 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 533 transitions. [2023-11-12 02:15:23,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-12 02:15:23,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:23,099 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:23,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:23,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:15:23,308 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:23,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:23,308 INFO L85 PathProgramCache]: Analyzing trace with hash -737140826, now seen corresponding path program 1 times [2023-11-12 02:15:23,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:23,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453568033] [2023-11-12 02:15:23,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:23,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:15:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:15:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:15:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-12 02:15:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:15:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:15:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-12 02:15:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:15:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,948 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 49 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 02:15:23,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:23,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453568033] [2023-11-12 02:15:23,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453568033] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:15:23,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195415422] [2023-11-12 02:15:23,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:23,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:23,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:23,951 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:23,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:15:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:24,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 02:15:24,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:24,283 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 77 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:15:24,284 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:15:24,584 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 50 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-12 02:15:24,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195415422] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:15:24,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:15:24,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 18 [2023-11-12 02:15:24,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630272195] [2023-11-12 02:15:24,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:15:24,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-12 02:15:24,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:24,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-12 02:15:24,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:15:24,587 INFO L87 Difference]: Start difference. First operand 410 states and 533 transitions. Second operand has 18 states, 18 states have (on average 8.055555555555555) internal successors, (145), 16 states have internal predecessors, (145), 7 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-12 02:15:26,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:26,130 INFO L93 Difference]: Finished difference Result 1190 states and 1652 transitions. [2023-11-12 02:15:26,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-12 02:15:26,131 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.055555555555555) internal successors, (145), 16 states have internal predecessors, (145), 7 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 131 [2023-11-12 02:15:26,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:26,138 INFO L225 Difference]: With dead ends: 1190 [2023-11-12 02:15:26,139 INFO L226 Difference]: Without dead ends: 833 [2023-11-12 02:15:26,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 286 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=434, Invalid=1288, Unknown=0, NotChecked=0, Total=1722 [2023-11-12 02:15:26,143 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 565 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:26,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1036 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-12 02:15:26,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2023-11-12 02:15:26,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 728. [2023-11-12 02:15:26,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 550 states have (on average 1.2163636363636363) internal successors, (669), 582 states have internal predecessors, (669), 83 states have call successors, (83), 76 states have call predecessors, (83), 94 states have return successors, (182), 87 states have call predecessors, (182), 83 states have call successors, (182) [2023-11-12 02:15:26,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 934 transitions. [2023-11-12 02:15:26,248 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 934 transitions. Word has length 131 [2023-11-12 02:15:26,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:26,248 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 934 transitions. [2023-11-12 02:15:26,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.055555555555555) internal successors, (145), 16 states have internal predecessors, (145), 7 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-12 02:15:26,248 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 934 transitions. [2023-11-12 02:15:26,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-12 02:15:26,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:26,252 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:26,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:26,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:26,463 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:26,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:26,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1154537432, now seen corresponding path program 1 times [2023-11-12 02:15:26,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:26,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592726381] [2023-11-12 02:15:26,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:26,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:15:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:15:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:15:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-12 02:15:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:15:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:15:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-12 02:15:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:15:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,790 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 43 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-12 02:15:26,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:26,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592726381] [2023-11-12 02:15:26,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592726381] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:15:26,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102767070] [2023-11-12 02:15:26,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:26,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:26,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:26,795 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:26,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:15:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:15:26,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:26,984 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-12 02:15:26,984 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:26,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102767070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:26,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:15:26,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2023-11-12 02:15:26,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791833927] [2023-11-12 02:15:26,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:26,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:15:26,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:26,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:15:26,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:15:26,987 INFO L87 Difference]: Start difference. First operand 728 states and 934 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:15:27,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:27,068 INFO L93 Difference]: Finished difference Result 944 states and 1199 transitions. [2023-11-12 02:15:27,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:27,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 131 [2023-11-12 02:15:27,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:27,070 INFO L225 Difference]: With dead ends: 944 [2023-11-12 02:15:27,070 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:15:27,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:15:27,074 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 6 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:27,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 372 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:27,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:15:27,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:15:27,075 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 02:15:27,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:15:27,075 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 131 [2023-11-12 02:15:27,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:27,075 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:15:27,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:15:27,076 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:15:27,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:15:27,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:15:27,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:27,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:27,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:15:28,209 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 615 622) no Hoare annotation was computed. [2023-11-12 02:15:28,209 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 615 622) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-11-12 02:15:28,210 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 615 622) no Hoare annotation was computed. [2023-11-12 02:15:28,210 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 522 528) no Hoare annotation was computed. [2023-11-12 02:15:28,210 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 522 528) the Hoare annotation is: true [2023-11-12 02:15:28,210 INFO L899 garLoopResultBuilder]: For program point L796-1(lines 792 803) no Hoare annotation was computed. [2023-11-12 02:15:28,210 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 792 803) the Hoare annotation is: true [2023-11-12 02:15:28,210 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 792 803) no Hoare annotation was computed. [2023-11-12 02:15:28,210 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 896 925) no Hoare annotation was computed. [2023-11-12 02:15:28,210 INFO L899 garLoopResultBuilder]: For program point L921(lines 896 925) no Hoare annotation was computed. [2023-11-12 02:15:28,210 INFO L899 garLoopResultBuilder]: For program point L917(line 917) no Hoare annotation was computed. [2023-11-12 02:15:28,211 INFO L899 garLoopResultBuilder]: For program point L910(lines 910 914) no Hoare annotation was computed. [2023-11-12 02:15:28,211 INFO L902 garLoopResultBuilder]: At program point L910-1(lines 910 914) the Hoare annotation is: true [2023-11-12 02:15:28,211 INFO L899 garLoopResultBuilder]: For program point L907(line 907) no Hoare annotation was computed. [2023-11-12 02:15:28,211 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 896 925) the Hoare annotation is: true [2023-11-12 02:15:28,211 INFO L902 garLoopResultBuilder]: At program point L906-2(lines 906 920) the Hoare annotation is: true [2023-11-12 02:15:28,211 INFO L902 garLoopResultBuilder]: At program point L902(line 902) the Hoare annotation is: true [2023-11-12 02:15:28,211 INFO L899 garLoopResultBuilder]: For program point L902-1(line 902) no Hoare annotation was computed. [2023-11-12 02:15:28,212 INFO L895 garLoopResultBuilder]: At program point L601(line 601) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse2)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 1) .cse1) (or .cse1 (and .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (< |old(~waterLevel~0)| 2)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= ~waterLevel~0 1))))) [2023-11-12 02:15:28,212 INFO L899 garLoopResultBuilder]: For program point L601-1(lines 582 606) no Hoare annotation was computed. [2023-11-12 02:15:28,212 INFO L899 garLoopResultBuilder]: For program point L502-1(lines 501 520) no Hoare annotation was computed. [2023-11-12 02:15:28,212 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 498 521) no Hoare annotation was computed. [2023-11-12 02:15:28,212 INFO L899 garLoopResultBuilder]: For program point getWaterLevel_returnLabel#1(lines 836 844) no Hoare annotation was computed. [2023-11-12 02:15:28,212 INFO L899 garLoopResultBuilder]: For program point L590(lines 590 598) no Hoare annotation was computed. [2023-11-12 02:15:28,212 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 603) no Hoare annotation was computed. [2023-11-12 02:15:28,213 INFO L899 garLoopResultBuilder]: For program point L772(lines 772 776) no Hoare annotation was computed. [2023-11-12 02:15:28,213 INFO L899 garLoopResultBuilder]: For program point L772-2(lines 768 779) no Hoare annotation was computed. [2023-11-12 02:15:28,213 INFO L899 garLoopResultBuilder]: For program point L760(line 760) no Hoare annotation was computed. [2023-11-12 02:15:28,213 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 756 763) no Hoare annotation was computed. [2023-11-12 02:15:28,214 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 498 521) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1))))) [2023-11-12 02:15:28,214 INFO L899 garLoopResultBuilder]: For program point L509-1(lines 509 515) no Hoare annotation was computed. [2023-11-12 02:15:28,214 INFO L895 garLoopResultBuilder]: At program point L596(line 596) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse2 .cse0 .cse1))) [2023-11-12 02:15:28,214 INFO L899 garLoopResultBuilder]: For program point L881(lines 881 887) no Hoare annotation was computed. [2023-11-12 02:15:28,215 INFO L895 garLoopResultBuilder]: At program point L592(line 592) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse2 .cse0 .cse1))) [2023-11-12 02:15:28,215 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCritical_returnLabel#1(lines 804 812) no Hoare annotation was computed. [2023-11-12 02:15:28,215 INFO L899 garLoopResultBuilder]: For program point L877(lines 877 890) no Hoare annotation was computed. [2023-11-12 02:15:28,215 INFO L899 garLoopResultBuilder]: For program point L877-1(lines 869 893) no Hoare annotation was computed. [2023-11-12 02:15:28,215 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 498 521) no Hoare annotation was computed. [2023-11-12 02:15:28,215 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarm_returnLabel#1(lines 623 633) no Hoare annotation was computed. [2023-11-12 02:15:28,215 INFO L899 garLoopResultBuilder]: For program point isPumpRunning_returnLabel#1(lines 634 642) no Hoare annotation was computed. [2023-11-12 02:15:28,216 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 760) no Hoare annotation was computed. [2023-11-12 02:15:28,216 INFO L895 garLoopResultBuilder]: At program point L473(lines 430 475) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2023-11-12 02:15:28,216 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 446) no Hoare annotation was computed. [2023-11-12 02:15:28,216 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 440 446) no Hoare annotation was computed. [2023-11-12 02:15:28,216 INFO L899 garLoopResultBuilder]: For program point L977(lines 977 984) no Hoare annotation was computed. [2023-11-12 02:15:28,217 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 436) no Hoare annotation was computed. [2023-11-12 02:15:28,217 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 957 966) no Hoare annotation was computed. [2023-11-12 02:15:28,217 INFO L899 garLoopResultBuilder]: For program point L977-2(lines 977 984) no Hoare annotation was computed. [2023-11-12 02:15:28,217 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 732 738) no Hoare annotation was computed. [2023-11-12 02:15:28,217 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 967 989) no Hoare annotation was computed. [2023-11-12 02:15:28,217 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:15:28,217 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:15:28,218 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 470) no Hoare annotation was computed. [2023-11-12 02:15:28,218 INFO L895 garLoopResultBuilder]: At program point L466-2(lines 460 471) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2023-11-12 02:15:28,218 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 950 956) no Hoare annotation was computed. [2023-11-12 02:15:28,218 INFO L899 garLoopResultBuilder]: For program point L450(lines 450 456) no Hoare annotation was computed. [2023-11-12 02:15:28,218 INFO L899 garLoopResultBuilder]: For program point L450-1(lines 450 456) no Hoare annotation was computed. [2023-11-12 02:15:28,218 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:15:28,218 INFO L899 garLoopResultBuilder]: For program point L479(lines 420 483) no Hoare annotation was computed. [2023-11-12 02:15:28,219 INFO L895 garLoopResultBuilder]: At program point L442(line 442) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2023-11-12 02:15:28,219 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:15:28,219 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 739 745) no Hoare annotation was computed. [2023-11-12 02:15:28,219 INFO L895 garLoopResultBuilder]: At program point L476(lines 429 477) the Hoare annotation is: false [2023-11-12 02:15:28,219 INFO L899 garLoopResultBuilder]: For program point L431(lines 430 475) no Hoare annotation was computed. [2023-11-12 02:15:28,219 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 471) no Hoare annotation was computed. [2023-11-12 02:15:28,220 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 746 754) no Hoare annotation was computed. [2023-11-12 02:15:28,220 INFO L895 garLoopResultBuilder]: At program point L452(line 452) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2023-11-12 02:15:28,220 INFO L899 garLoopResultBuilder]: For program point activatePump_returnLabel#1(lines 607 614) no Hoare annotation was computed. [2023-11-12 02:15:28,220 INFO L899 garLoopResultBuilder]: For program point L849(lines 849 855) no Hoare annotation was computed. [2023-11-12 02:15:28,220 INFO L899 garLoopResultBuilder]: For program point L688(lines 688 692) no Hoare annotation was computed. [2023-11-12 02:15:28,220 INFO L899 garLoopResultBuilder]: For program point L688-2(lines 688 692) no Hoare annotation was computed. [2023-11-12 02:15:28,221 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 530 554) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-11-12 02:15:28,221 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 845 858) no Hoare annotation was computed. [2023-11-12 02:15:28,221 INFO L895 garLoopResultBuilder]: At program point L544(line 544) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 0))) [2023-11-12 02:15:28,221 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 679 697) no Hoare annotation was computed. [2023-11-12 02:15:28,221 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 530 554) no Hoare annotation was computed. [2023-11-12 02:15:28,222 INFO L899 garLoopResultBuilder]: For program point L538(lines 538 546) no Hoare annotation was computed. [2023-11-12 02:15:28,222 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 551) no Hoare annotation was computed. [2023-11-12 02:15:28,222 INFO L895 garLoopResultBuilder]: At program point L549(line 549) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-11-12 02:15:28,222 INFO L899 garLoopResultBuilder]: For program point L549-1(lines 530 554) no Hoare annotation was computed. [2023-11-12 02:15:28,222 INFO L899 garLoopResultBuilder]: For program point L784-1(lines 780 791) no Hoare annotation was computed. [2023-11-12 02:15:28,222 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 780 791) no Hoare annotation was computed. [2023-11-12 02:15:28,223 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 780 791) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (= |old(~waterLevel~0)| ~waterLevel~0)) (or (not (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1)))) [2023-11-12 02:15:28,223 INFO L895 garLoopResultBuilder]: At program point L570(line 570) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-11-12 02:15:28,223 INFO L895 garLoopResultBuilder]: At program point L566(line 566) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_~tmp~5#1|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2023-11-12 02:15:28,223 INFO L899 garLoopResultBuilder]: For program point L564(lines 564 572) no Hoare annotation was computed. [2023-11-12 02:15:28,223 INFO L899 garLoopResultBuilder]: For program point L560(lines 560 577) no Hoare annotation was computed. [2023-11-12 02:15:28,223 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDry_returnLabel#1(lines 859 867) no Hoare annotation was computed. [2023-11-12 02:15:28,224 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 556 580) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-11-12 02:15:28,224 INFO L899 garLoopResultBuilder]: For program point L707(lines 707 711) no Hoare annotation was computed. [2023-11-12 02:15:28,224 INFO L899 garLoopResultBuilder]: For program point L707-2(lines 707 711) no Hoare annotation was computed. [2023-11-12 02:15:28,224 INFO L895 garLoopResultBuilder]: At program point L575(line 575) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0))) [2023-11-12 02:15:28,224 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevel_returnLabel#1(lines 698 716) no Hoare annotation was computed. [2023-11-12 02:15:28,224 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 556 580) no Hoare annotation was computed. [2023-11-12 02:15:28,224 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 556 580) no Hoare annotation was computed. [2023-11-12 02:15:28,227 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:28,230 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:15:28,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:15:28 BoogieIcfgContainer [2023-11-12 02:15:28,248 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:15:28,248 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:15:28,248 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:15:28,249 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:15:28,249 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:16" (3/4) ... [2023-11-12 02:15:28,252 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:15:28,256 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-12 02:15:28,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-12 02:15:28,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-12 02:15:28,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-12 02:15:28,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-12 02:15:28,258 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:15:28,258 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-12 02:15:28,258 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2023-11-12 02:15:28,270 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-12 02:15:28,270 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-12 02:15:28,271 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 02:15:28,272 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:15:28,272 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:15:28,305 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == 0) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel)) && (tmp == 1)) || (((((\result == 1) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1))) [2023-11-12 02:15:28,351 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == 0) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel)) && (tmp == 1)) || (((((\result == 1) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1))) [2023-11-12 02:15:28,403 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:15:28,403 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:15:28,403 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:15:28,404 INFO L158 Benchmark]: Toolchain (without parser) took 12867.82ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 108.6MB in the beginning and 69.0MB in the end (delta: 39.6MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. [2023-11-12 02:15:28,405 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 157.3MB. Free memory was 130.4MB in the beginning and 130.2MB in the end (delta: 242.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:15:28,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 591.97ms. Allocated memory is still 157.3MB. Free memory was 108.4MB in the beginning and 88.8MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:15:28,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.66ms. Allocated memory is still 157.3MB. Free memory was 88.8MB in the beginning and 86.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:15:28,406 INFO L158 Benchmark]: Boogie Preprocessor took 59.04ms. Allocated memory is still 157.3MB. Free memory was 86.5MB in the beginning and 84.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:15:28,406 INFO L158 Benchmark]: RCFGBuilder took 569.89ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 84.8MB in the beginning and 156.1MB in the end (delta: -71.3MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2023-11-12 02:15:28,406 INFO L158 Benchmark]: TraceAbstraction took 11401.93ms. Allocated memory is still 188.7MB. Free memory was 155.1MB in the beginning and 77.4MB in the end (delta: 77.7MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2023-11-12 02:15:28,407 INFO L158 Benchmark]: Witness Printer took 155.15ms. Allocated memory is still 188.7MB. Free memory was 77.4MB in the beginning and 69.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:15:28,409 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 157.3MB. Free memory was 130.4MB in the beginning and 130.2MB in the end (delta: 242.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 591.97ms. Allocated memory is still 157.3MB. Free memory was 108.4MB in the beginning and 88.8MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.66ms. Allocated memory is still 157.3MB. Free memory was 88.8MB in the beginning and 86.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.04ms. Allocated memory is still 157.3MB. Free memory was 86.5MB in the beginning and 84.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 569.89ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 84.8MB in the beginning and 156.1MB in the end (delta: -71.3MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * TraceAbstraction took 11401.93ms. Allocated memory is still 188.7MB. Free memory was 155.1MB in the beginning and 77.4MB in the end (delta: 77.7MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. * Witness Printer took 155.15ms. Allocated memory is still 188.7MB. Free memory was 77.4MB in the beginning and 69.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [415] - GenericResultAtLocation [Line: 484]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [484] - GenericResultAtLocation [Line: 717]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [717] - GenericResultAtLocation [Line: 755]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [755] - GenericResultAtLocation [Line: 764]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [764] - GenericResultAtLocation [Line: 868]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [868] - GenericResultAtLocation [Line: 894]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [894] * 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: 760]: 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: 11.3s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2156 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2129 mSDsluCounter, 4582 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3360 mSDsCounter, 660 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3283 IncrementalHoareTripleChecker+Invalid, 3943 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 660 mSolverCounterUnsat, 1222 mSDtfsCounter, 3283 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 822 GetRequests, 654 SyntacticMatches, 13 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1264 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=728occurred in iteration=11, InterpolantAutomatonStates: 145, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 233 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 710 PreInvPairs, 740 NumberOfFragments, 473 HoareAnnotationTreeSize, 710 FomulaSimplifications, 718 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 1237 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 991 NumberOfCodeBlocks, 991 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1180 ConstructedInterpolants, 0 QuantifiedInterpolants, 2165 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1117 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 17 InterpolantComputations, 10 PerfectInterpolantSequences, 426/498 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: 906]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 430]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel)) && (tmp == 1)) || (((((\result == 1) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1))) - InvariantResult [Line: 429]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-12 02:15:28,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49a4234b-c26f-4b2f-8789-2ab34b0359dd/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE