./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya --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 5780768f89256c506186805750dd5ec09f07e7c3b9baffd6ca5edbcb4a88d3de --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:24:58,782 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:24:58,844 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 01:24:58,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:24:58,848 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:24:58,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:24:58,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:24:58,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:24:58,871 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:24:58,871 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:24:58,872 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:24:58,872 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:24:58,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:24:58,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:24:58,874 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:24:58,875 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:24:58,875 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:24:58,876 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:24:58,876 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:24:58,877 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:24:58,877 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:24:58,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:24:58,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:24:58,878 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:24:58,879 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:24:58,879 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:24:58,879 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:24:58,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:24:58,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:24:58,880 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:24:58,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:24:58,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:24:58,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:24:58,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:24:58,882 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:24:58,882 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:24:58,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:24:58,883 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:24:58,883 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:24:58,883 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:24:58,883 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:24:58,883 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:24:58,884 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_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5780768f89256c506186805750dd5ec09f07e7c3b9baffd6ca5edbcb4a88d3de [2023-11-29 01:24:59,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:24:59,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:24:59,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:24:59,101 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:24:59,102 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:24:59,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c [2023-11-29 01:25:01,851 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:25:02,055 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:25:02,056 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c [2023-11-29 01:25:02,069 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/data/2064bf7a5/ebd2f4226c0544ebad7192faab4b2e39/FLAGe5c84bacd [2023-11-29 01:25:02,084 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/data/2064bf7a5/ebd2f4226c0544ebad7192faab4b2e39 [2023-11-29 01:25:02,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:25:02,089 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:25:02,090 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:25:02,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:25:02,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:25:02,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:25:02" (1/1) ... [2023-11-29 01:25:02,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560474ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:25:02, skipping insertion in model container [2023-11-29 01:25:02,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:25:02" (1/1) ... [2023-11-29 01:25:02,140 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:25:02,339 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_1043b712-3e13-401b-84e4-2f0121901ad7/sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c[7019,7032] [2023-11-29 01:25:02,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:25:02,413 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:25:02,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2023-11-29 01:25:02,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2023-11-29 01:25:02,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [333] [2023-11-29 01:25:02,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [432] [2023-11-29 01:25:02,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [467] [2023-11-29 01:25:02,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [476] [2023-11-29 01:25:02,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [502] [2023-11-29 01:25:02,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [597] [2023-11-29 01:25:02,445 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_1043b712-3e13-401b-84e4-2f0121901ad7/sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c[7019,7032] [2023-11-29 01:25:02,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:25:02,498 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:25:02,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:25:02 WrapperNode [2023-11-29 01:25:02,498 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:25:02,499 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:25:02,500 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:25:02,500 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:25:02,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:25:02" (1/1) ... [2023-11-29 01:25:02,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:25:02" (1/1) ... [2023-11-29 01:25:02,549 INFO L138 Inliner]: procedures = 55, calls = 100, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 188 [2023-11-29 01:25:02,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:25:02,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:25:02,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:25:02,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:25:02,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:25:02" (1/1) ... [2023-11-29 01:25:02,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:25:02" (1/1) ... [2023-11-29 01:25:02,566 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:25:02" (1/1) ... [2023-11-29 01:25:02,580 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 01:25:02,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:25:02" (1/1) ... [2023-11-29 01:25:02,581 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:25:02" (1/1) ... [2023-11-29 01:25:02,586 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:25:02" (1/1) ... [2023-11-29 01:25:02,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:25:02" (1/1) ... [2023-11-29 01:25:02,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:25:02" (1/1) ... [2023-11-29 01:25:02,594 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:25:02" (1/1) ... [2023-11-29 01:25:02,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:25:02,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:25:02,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:25:02,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:25:02,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:25:02" (1/1) ... [2023-11-29 01:25:02,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:25:02,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:25:02,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:25:02,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:25:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:25:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-29 01:25:02,668 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-29 01:25:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-29 01:25:02,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-29 01:25:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-29 01:25:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-29 01:25:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-29 01:25:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-29 01:25:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-29 01:25:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-29 01:25:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-29 01:25:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-29 01:25:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-29 01:25:02,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-29 01:25:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:25:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-29 01:25:02,670 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-29 01:25:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:25:02,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:25:02,747 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:25:02,749 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:25:03,008 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:25:03,064 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:25:03,064 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 01:25:03,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:25:03 BoogieIcfgContainer [2023-11-29 01:25:03,065 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:25:03,068 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:25:03,068 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:25:03,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:25:03,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:25:02" (1/3) ... [2023-11-29 01:25:03,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5358ca00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:25:03, skipping insertion in model container [2023-11-29 01:25:03,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:25:02" (2/3) ... [2023-11-29 01:25:03,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5358ca00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:25:03, skipping insertion in model container [2023-11-29 01:25:03,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:25:03" (3/3) ... [2023-11-29 01:25:03,080 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product46.cil.c [2023-11-29 01:25:03,100 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:25:03,101 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:25:03,152 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:25:03,158 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;@c6f4f12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:25:03,159 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:25:03,163 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 59 states have internal predecessors, (77), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:25:03,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 01:25:03,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:03,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:25:03,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:25:03,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:03,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1561894303, now seen corresponding path program 1 times [2023-11-29 01:25:03,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:03,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339667137] [2023-11-29 01:25:03,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:03,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:03,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:25:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:03,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:25:03,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:03,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339667137] [2023-11-29 01:25:03,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339667137] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:25:03,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:25:03,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:25:03,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978981130] [2023-11-29 01:25:03,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:25:03,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:25:03,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:03,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:25:03,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:25:03,388 INFO L87 Difference]: Start difference. First operand has 75 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 59 states have internal predecessors, (77), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:25:03,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:03,444 INFO L93 Difference]: Finished difference Result 148 states and 211 transitions. [2023-11-29 01:25:03,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:25:03,446 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-11-29 01:25:03,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:03,454 INFO L225 Difference]: With dead ends: 148 [2023-11-29 01:25:03,455 INFO L226 Difference]: Without dead ends: 70 [2023-11-29 01:25:03,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:25:03,462 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:03,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:25:03,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-29 01:25:03,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-11-29 01:25:03,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 55 states have internal predecessors, (67), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 01:25:03,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 94 transitions. [2023-11-29 01:25:03,503 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 94 transitions. Word has length 16 [2023-11-29 01:25:03,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:03,504 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 94 transitions. [2023-11-29 01:25:03,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:25:03,504 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 94 transitions. [2023-11-29 01:25:03,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 01:25:03,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:03,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:25:03,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:25:03,507 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:25:03,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:03,508 INFO L85 PathProgramCache]: Analyzing trace with hash -2036669376, now seen corresponding path program 1 times [2023-11-29 01:25:03,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:03,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359805683] [2023-11-29 01:25:03,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:03,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:03,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 01:25:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:03,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:25:03,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:03,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359805683] [2023-11-29 01:25:03,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359805683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:25:03,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:25:03,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:25:03,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160508550] [2023-11-29 01:25:03,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:25:03,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:25:03,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:03,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:25:03,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:25:03,609 INFO L87 Difference]: Start difference. First operand 70 states and 94 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:25:03,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:03,645 INFO L93 Difference]: Finished difference Result 113 states and 151 transitions. [2023-11-29 01:25:03,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:25:03,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-29 01:25:03,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:03,647 INFO L225 Difference]: With dead ends: 113 [2023-11-29 01:25:03,647 INFO L226 Difference]: Without dead ends: 62 [2023-11-29 01:25:03,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:25:03,650 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 11 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:03,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 131 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:25:03,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-29 01:25:03,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-29 01:25:03,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 50 states have internal predecessors, (61), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 01:25:03,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 83 transitions. [2023-11-29 01:25:03,662 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 83 transitions. Word has length 17 [2023-11-29 01:25:03,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:03,663 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 83 transitions. [2023-11-29 01:25:03,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:25:03,663 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 83 transitions. [2023-11-29 01:25:03,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 01:25:03,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:03,665 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] [2023-11-29 01:25:03,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:25:03,665 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:25:03,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:03,666 INFO L85 PathProgramCache]: Analyzing trace with hash 416353843, now seen corresponding path program 1 times [2023-11-29 01:25:03,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:03,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616700778] [2023-11-29 01:25:03,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:03,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:03,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:25:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:03,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:25:03,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:03,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616700778] [2023-11-29 01:25:03,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616700778] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:25:03,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:25:03,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:25:03,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449106089] [2023-11-29 01:25:03,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:25:03,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:25:03,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:03,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:25:03,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:25:03,750 INFO L87 Difference]: Start difference. First operand 62 states and 83 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-29 01:25:03,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:03,782 INFO L93 Difference]: Finished difference Result 122 states and 165 transitions. [2023-11-29 01:25:03,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:25:03,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 20 [2023-11-29 01:25:03,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:03,785 INFO L225 Difference]: With dead ends: 122 [2023-11-29 01:25:03,785 INFO L226 Difference]: Without dead ends: 62 [2023-11-29 01:25:03,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:25:03,787 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 78 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:03,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 70 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:25:03,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-29 01:25:03,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-29 01:25:03,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 50 states have internal predecessors, (60), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 01:25:03,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2023-11-29 01:25:03,799 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 20 [2023-11-29 01:25:03,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:03,799 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2023-11-29 01:25:03,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-29 01:25:03,800 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2023-11-29 01:25:03,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 01:25:03,801 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:03,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:25:03,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:25:03,802 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:25:03,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:03,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1907888214, now seen corresponding path program 1 times [2023-11-29 01:25:03,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:03,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120112182] [2023-11-29 01:25:03,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:03,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:03,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:25:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:03,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:25:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:03,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 01:25:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:03,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:25:03,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:03,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120112182] [2023-11-29 01:25:03,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120112182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:25:03,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:25:03,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:25:03,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690463829] [2023-11-29 01:25:03,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:25:03,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:25:03,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:03,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:25:03,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:25:03,902 INFO L87 Difference]: Start difference. First operand 62 states and 82 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:25:04,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:04,132 INFO L93 Difference]: Finished difference Result 189 states and 246 transitions. [2023-11-29 01:25:04,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:25:04,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2023-11-29 01:25:04,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:04,135 INFO L225 Difference]: With dead ends: 189 [2023-11-29 01:25:04,135 INFO L226 Difference]: Without dead ends: 129 [2023-11-29 01:25:04,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:25:04,138 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 154 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:04,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 178 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:25:04,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-29 01:25:04,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2023-11-29 01:25:04,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 86 states have (on average 1.313953488372093) internal successors, (113), 94 states have internal predecessors, (113), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2023-11-29 01:25:04,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 154 transitions. [2023-11-29 01:25:04,157 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 154 transitions. Word has length 30 [2023-11-29 01:25:04,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:04,158 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 154 transitions. [2023-11-29 01:25:04,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:25:04,158 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 154 transitions. [2023-11-29 01:25:04,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 01:25:04,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:04,160 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] [2023-11-29 01:25:04,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:25:04,160 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:25:04,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:04,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1793543999, now seen corresponding path program 1 times [2023-11-29 01:25:04,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:04,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245386324] [2023-11-29 01:25:04,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:04,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:04,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:25:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:04,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:25:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:04,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 01:25:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:04,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:25:04,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:04,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245386324] [2023-11-29 01:25:04,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245386324] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:25:04,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:25:04,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:25:04,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514383124] [2023-11-29 01:25:04,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:25:04,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:25:04,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:04,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:25:04,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:25:04,279 INFO L87 Difference]: Start difference. First operand 123 states and 154 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:25:04,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:04,605 INFO L93 Difference]: Finished difference Result 345 states and 454 transitions. [2023-11-29 01:25:04,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:25:04,606 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2023-11-29 01:25:04,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:04,608 INFO L225 Difference]: With dead ends: 345 [2023-11-29 01:25:04,608 INFO L226 Difference]: Without dead ends: 224 [2023-11-29 01:25:04,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:25:04,611 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 144 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:04,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 239 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:25:04,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-11-29 01:25:04,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 204. [2023-11-29 01:25:04,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 145 states have (on average 1.3103448275862069) internal successors, (190), 156 states have internal predecessors, (190), 30 states have call successors, (30), 26 states have call predecessors, (30), 28 states have return successors, (40), 30 states have call predecessors, (40), 30 states have call successors, (40) [2023-11-29 01:25:04,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 260 transitions. [2023-11-29 01:25:04,646 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 260 transitions. Word has length 35 [2023-11-29 01:25:04,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:04,646 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 260 transitions. [2023-11-29 01:25:04,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:25:04,647 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 260 transitions. [2023-11-29 01:25:04,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 01:25:04,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:04,649 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] [2023-11-29 01:25:04,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:25:04,649 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:25:04,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:04,650 INFO L85 PathProgramCache]: Analyzing trace with hash -812479555, now seen corresponding path program 1 times [2023-11-29 01:25:04,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:04,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855403955] [2023-11-29 01:25:04,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:04,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:04,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:25:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:04,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:25:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:04,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 01:25:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:04,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:25:04,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:04,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855403955] [2023-11-29 01:25:04,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855403955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:25:04,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:25:04,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:25:04,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021617679] [2023-11-29 01:25:04,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:25:04,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:25:04,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:04,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:25:04,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:25:04,750 INFO L87 Difference]: Start difference. First operand 204 states and 260 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:25:04,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:04,955 INFO L93 Difference]: Finished difference Result 214 states and 268 transitions. [2023-11-29 01:25:04,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:25:04,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2023-11-29 01:25:04,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:04,958 INFO L225 Difference]: With dead ends: 214 [2023-11-29 01:25:04,958 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 01:25:04,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:25:04,960 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 108 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:04,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 161 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:25:04,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 01:25:04,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 204. [2023-11-29 01:25:04,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 145 states have (on average 1.289655172413793) internal successors, (187), 156 states have internal predecessors, (187), 30 states have call successors, (30), 26 states have call predecessors, (30), 28 states have return successors, (40), 30 states have call predecessors, (40), 30 states have call successors, (40) [2023-11-29 01:25:04,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 257 transitions. [2023-11-29 01:25:04,988 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 257 transitions. Word has length 35 [2023-11-29 01:25:04,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:04,988 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 257 transitions. [2023-11-29 01:25:04,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:25:04,989 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 257 transitions. [2023-11-29 01:25:04,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 01:25:04,991 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:04,992 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 01:25:04,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 01:25:04,992 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:25:04,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:04,992 INFO L85 PathProgramCache]: Analyzing trace with hash 2137349814, now seen corresponding path program 1 times [2023-11-29 01:25:04,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:04,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025123182] [2023-11-29 01:25:04,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:04,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:25:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:25:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:25:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 01:25:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:25:05,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:05,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025123182] [2023-11-29 01:25:05,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025123182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:25:05,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:25:05,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:25:05,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495241636] [2023-11-29 01:25:05,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:25:05,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:25:05,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:05,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:25:05,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:25:05,070 INFO L87 Difference]: Start difference. First operand 204 states and 257 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:25:05,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:05,217 INFO L93 Difference]: Finished difference Result 416 states and 535 transitions. [2023-11-29 01:25:05,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:25:05,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2023-11-29 01:25:05,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:05,221 INFO L225 Difference]: With dead ends: 416 [2023-11-29 01:25:05,221 INFO L226 Difference]: Without dead ends: 214 [2023-11-29 01:25:05,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:25:05,223 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 50 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:05,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 172 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:25:05,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-11-29 01:25:05,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 208. [2023-11-29 01:25:05,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 149 states have (on average 1.2818791946308725) internal successors, (191), 160 states have internal predecessors, (191), 30 states have call successors, (30), 26 states have call predecessors, (30), 28 states have return successors, (40), 30 states have call predecessors, (40), 30 states have call successors, (40) [2023-11-29 01:25:05,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 261 transitions. [2023-11-29 01:25:05,245 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 261 transitions. Word has length 42 [2023-11-29 01:25:05,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:05,245 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 261 transitions. [2023-11-29 01:25:05,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:25:05,245 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 261 transitions. [2023-11-29 01:25:05,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 01:25:05,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:05,247 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 01:25:05,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 01:25:05,248 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:25:05,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:05,248 INFO L85 PathProgramCache]: Analyzing trace with hash 2003336308, now seen corresponding path program 1 times [2023-11-29 01:25:05,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:05,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886035401] [2023-11-29 01:25:05,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:05,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:25:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:25:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:25:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 01:25:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:25:05,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:05,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886035401] [2023-11-29 01:25:05,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886035401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:25:05,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:25:05,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:25:05,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496065794] [2023-11-29 01:25:05,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:25:05,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:25:05,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:05,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:25:05,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:25:05,338 INFO L87 Difference]: Start difference. First operand 208 states and 261 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:25:05,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:05,500 INFO L93 Difference]: Finished difference Result 379 states and 479 transitions. [2023-11-29 01:25:05,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:25:05,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2023-11-29 01:25:05,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:05,503 INFO L225 Difference]: With dead ends: 379 [2023-11-29 01:25:05,503 INFO L226 Difference]: Without dead ends: 173 [2023-11-29 01:25:05,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:25:05,505 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 129 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:05,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 153 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:25:05,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-29 01:25:05,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 168. [2023-11-29 01:25:05,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 120 states have (on average 1.25) internal successors, (150), 129 states have internal predecessors, (150), 24 states have call successors, (24), 21 states have call predecessors, (24), 23 states have return successors, (29), 24 states have call predecessors, (29), 24 states have call successors, (29) [2023-11-29 01:25:05,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 203 transitions. [2023-11-29 01:25:05,523 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 203 transitions. Word has length 42 [2023-11-29 01:25:05,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:05,524 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 203 transitions. [2023-11-29 01:25:05,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:25:05,524 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 203 transitions. [2023-11-29 01:25:05,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 01:25:05,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:05,526 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 01:25:05,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 01:25:05,526 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:25:05,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:05,526 INFO L85 PathProgramCache]: Analyzing trace with hash -822429224, now seen corresponding path program 1 times [2023-11-29 01:25:05,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:05,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377315982] [2023-11-29 01:25:05,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:05,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:25:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:25:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:25:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:25:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 01:25:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:05,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:25:05,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:05,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377315982] [2023-11-29 01:25:05,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377315982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:25:05,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:25:05,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:25:05,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931061852] [2023-11-29 01:25:05,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:25:05,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:25:05,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:05,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:25:05,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:25:05,754 INFO L87 Difference]: Start difference. First operand 168 states and 203 transitions. Second operand has 12 states, 10 states have (on average 3.4) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:25:06,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:06,477 INFO L93 Difference]: Finished difference Result 540 states and 673 transitions. [2023-11-29 01:25:06,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 01:25:06,478 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.4) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2023-11-29 01:25:06,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:06,481 INFO L225 Difference]: With dead ends: 540 [2023-11-29 01:25:06,481 INFO L226 Difference]: Without dead ends: 374 [2023-11-29 01:25:06,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=229, Invalid=961, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 01:25:06,483 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 260 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:06,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 320 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:25:06,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2023-11-29 01:25:06,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 318. [2023-11-29 01:25:06,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 225 states have (on average 1.2133333333333334) internal successors, (273), 243 states have internal predecessors, (273), 47 states have call successors, (47), 41 states have call predecessors, (47), 45 states have return successors, (62), 46 states have call predecessors, (62), 47 states have call successors, (62) [2023-11-29 01:25:06,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 382 transitions. [2023-11-29 01:25:06,522 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 382 transitions. Word has length 46 [2023-11-29 01:25:06,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:06,522 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 382 transitions. [2023-11-29 01:25:06,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.4) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:25:06,522 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 382 transitions. [2023-11-29 01:25:06,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 01:25:06,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:06,525 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:25:06,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 01:25:06,525 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:25:06,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:06,525 INFO L85 PathProgramCache]: Analyzing trace with hash -517385475, now seen corresponding path program 1 times [2023-11-29 01:25:06,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:06,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621184993] [2023-11-29 01:25:06,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:06,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:06,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:25:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:06,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:25:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:06,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:25:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:06,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:25:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:06,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:25:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:06,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:25:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:06,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 01:25:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:06,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:25:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:06,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:25:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:06,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 01:25:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:06,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:25:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:06,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 01:25:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:06,813 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-29 01:25:06,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:06,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621184993] [2023-11-29 01:25:06,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621184993] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:25:06,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391054860] [2023-11-29 01:25:06,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:06,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:25:06,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:25:06,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:25:06,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:25:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:06,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:25:06,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:25:07,081 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 01:25:07,081 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:25:07,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391054860] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:25:07,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:25:07,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2023-11-29 01:25:07,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307804676] [2023-11-29 01:25:07,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:25:07,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:25:07,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:07,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:25:07,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:25:07,085 INFO L87 Difference]: Start difference. First operand 318 states and 382 transitions. Second operand has 8 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 01:25:07,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:07,307 INFO L93 Difference]: Finished difference Result 705 states and 850 transitions. [2023-11-29 01:25:07,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:25:07,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 89 [2023-11-29 01:25:07,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:07,309 INFO L225 Difference]: With dead ends: 705 [2023-11-29 01:25:07,309 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 01:25:07,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2023-11-29 01:25:07,312 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 52 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:07,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 692 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:25:07,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 01:25:07,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 01:25:07,313 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) [2023-11-29 01:25:07,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 01:25:07,314 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2023-11-29 01:25:07,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:07,314 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 01:25:07,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 01:25:07,314 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 01:25:07,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 01:25:07,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 01:25:07,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:25:07,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 01:25:07,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 01:25:08,697 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 158 164) no Hoare annotation was computed. [2023-11-29 01:25:08,697 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 158 164) the Hoare annotation is: true [2023-11-29 01:25:08,698 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 530 541) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (<= 1 ~methaneLevelCritical~0) (not (= ~pumpRunning~0 0)) .cse0 (< |old(~methaneLevelCritical~0)| 1)) (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) .cse0))) [2023-11-29 01:25:08,698 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 530 541) no Hoare annotation was computed. [2023-11-29 01:25:08,698 INFO L899 garLoopResultBuilder]: For program point L534-1(lines 530 541) no Hoare annotation was computed. [2023-11-29 01:25:08,698 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 542 550) the Hoare annotation is: true [2023-11-29 01:25:08,698 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 542 550) no Hoare annotation was computed. [2023-11-29 01:25:08,698 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 335 364) no Hoare annotation was computed. [2023-11-29 01:25:08,699 INFO L899 garLoopResultBuilder]: For program point L349(lines 349 353) no Hoare annotation was computed. [2023-11-29 01:25:08,699 INFO L902 garLoopResultBuilder]: At program point L349-1(lines 349 353) the Hoare annotation is: true [2023-11-29 01:25:08,699 INFO L902 garLoopResultBuilder]: At program point L345-2(lines 345 359) the Hoare annotation is: true [2023-11-29 01:25:08,700 INFO L902 garLoopResultBuilder]: At program point L341(line 341) the Hoare annotation is: true [2023-11-29 01:25:08,700 INFO L899 garLoopResultBuilder]: For program point L341-1(line 341) no Hoare annotation was computed. [2023-11-29 01:25:08,700 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 335 364) the Hoare annotation is: true [2023-11-29 01:25:08,700 INFO L899 garLoopResultBuilder]: For program point L360(lines 335 364) no Hoare annotation was computed. [2023-11-29 01:25:08,700 INFO L899 garLoopResultBuilder]: For program point L356(line 356) no Hoare annotation was computed. [2023-11-29 01:25:08,700 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 514) no Hoare annotation was computed. [2023-11-29 01:25:08,700 INFO L899 garLoopResultBuilder]: For program point L510-2(lines 506 517) no Hoare annotation was computed. [2023-11-29 01:25:08,700 INFO L895 garLoopResultBuilder]: At program point L206(line 206) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or .cse0 (< ~methaneLevelCritical~0 1)))) [2023-11-29 01:25:08,700 INFO L895 garLoopResultBuilder]: At program point L198(line 198) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (and .cse0 .cse3) (< ~methaneLevelCritical~0 1)) (or .cse3 .cse1 .cse2))) [2023-11-29 01:25:08,701 INFO L899 garLoopResultBuilder]: For program point L198-1(line 198) no Hoare annotation was computed. [2023-11-29 01:25:08,701 INFO L895 garLoopResultBuilder]: At program point L483(line 483) the Hoare annotation is: (let ((.cse7 (= 1 ~systemActive~0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (= ~methaneLevelCritical~0 0))) (let ((.cse2 (not .cse8)) (.cse3 (and .cse8 .cse7 .cse5)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (not .cse7)) (.cse6 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse5 .cse6) (or .cse4 .cse1 .cse6)))) [2023-11-29 01:25:08,701 INFO L899 garLoopResultBuilder]: For program point L483-1(line 483) no Hoare annotation was computed. [2023-11-29 01:25:08,701 INFO L895 garLoopResultBuilder]: At program point L211(line 211) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0) (= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (< ~methaneLevelCritical~0 1)))) [2023-11-29 01:25:08,701 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 192 216) no Hoare annotation was computed. [2023-11-29 01:25:08,701 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 145 151) no Hoare annotation was computed. [2023-11-29 01:25:08,702 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 134 157) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse0 .cse1 (< ~methaneLevelCritical~0 1)))) [2023-11-29 01:25:08,702 INFO L899 garLoopResultBuilder]: For program point L472(line 472) no Hoare annotation was computed. [2023-11-29 01:25:08,702 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 134 157) no Hoare annotation was computed. [2023-11-29 01:25:08,702 INFO L899 garLoopResultBuilder]: For program point L138-1(lines 137 156) no Hoare annotation was computed. [2023-11-29 01:25:08,702 INFO L899 garLoopResultBuilder]: For program point L489(lines 489 495) no Hoare annotation was computed. [2023-11-29 01:25:08,702 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 472) no Hoare annotation was computed. [2023-11-29 01:25:08,702 INFO L899 garLoopResultBuilder]: For program point L200(lines 200 208) no Hoare annotation was computed. [2023-11-29 01:25:08,702 INFO L899 garLoopResultBuilder]: For program point L485(lines 485 498) no Hoare annotation was computed. [2023-11-29 01:25:08,702 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 213) no Hoare annotation was computed. [2023-11-29 01:25:08,703 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 477 501) no Hoare annotation was computed. [2023-11-29 01:25:08,703 INFO L899 garLoopResultBuilder]: For program point L419-2(lines 419 426) no Hoare annotation was computed. [2023-11-29 01:25:08,703 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2023-11-29 01:25:08,703 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 85 91) no Hoare annotation was computed. [2023-11-29 01:25:08,703 INFO L895 garLoopResultBuilder]: At program point L110(lines 65 112) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2023-11-29 01:25:08,703 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2023-11-29 01:25:08,703 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 107) no Hoare annotation was computed. [2023-11-29 01:25:08,704 INFO L895 garLoopResultBuilder]: At program point L103-2(lines 95 108) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2023-11-29 01:25:08,704 INFO L899 garLoopResultBuilder]: For program point L66(lines 65 112) no Hoare annotation was computed. [2023-11-29 01:25:08,704 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 01:25:08,704 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 108) no Hoare annotation was computed. [2023-11-29 01:25:08,704 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2023-11-29 01:25:08,704 INFO L899 garLoopResultBuilder]: For program point L116(lines 55 120) no Hoare annotation was computed. [2023-11-29 01:25:08,704 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2023-11-29 01:25:08,704 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2023-11-29 01:25:08,704 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 01:25:08,704 INFO L895 garLoopResultBuilder]: At program point L113(lines 64 114) the Hoare annotation is: false [2023-11-29 01:25:08,705 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 426) no Hoare annotation was computed. [2023-11-29 01:25:08,705 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 518 529) no Hoare annotation was computed. [2023-11-29 01:25:08,705 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 518 529) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 (< ~methaneLevelCritical~0 1)))) [2023-11-29 01:25:08,705 INFO L899 garLoopResultBuilder]: For program point L522-1(lines 518 529) no Hoare annotation was computed. [2023-11-29 01:25:08,705 INFO L895 garLoopResultBuilder]: At program point L180(line 180) the Hoare annotation is: (let ((.cse7 (= 1 ~systemActive~0)) (.cse8 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not (= ~waterLevel~0 1))) (.cse4 (not .cse8)) (.cse3 (not (= |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1| 0))) (.cse6 (< ~methaneLevelCritical~0 1)) (.cse1 (not .cse7)) (.cse5 (and (= ~pumpRunning~0 0) .cse7 .cse8 (= |processEnvironment__wrappee__methaneQuery_~tmp~1#1| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5 .cse6) (or .cse0 .cse4 .cse1 .cse3 .cse6) (or .cse1 .cse5 .cse2)))) [2023-11-29 01:25:08,705 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 182) no Hoare annotation was computed. [2023-11-29 01:25:08,705 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2023-11-29 01:25:08,705 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 187) no Hoare annotation was computed. [2023-11-29 01:25:08,706 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 166 190) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (< ~methaneLevelCritical~0 1)))) [2023-11-29 01:25:08,706 INFO L899 garLoopResultBuilder]: For program point L232(lines 232 238) no Hoare annotation was computed. [2023-11-29 01:25:08,706 INFO L895 garLoopResultBuilder]: At program point L230(line 230) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0))) (let ((.cse3 (not (= ~waterLevel~0 1))) (.cse4 (not .cse1)) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse6 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0 .cse5) (or .cse3 .cse0 .cse2) (or .cse4 .cse6 .cse0 .cse5) (or .cse6 .cse0 .cse2)))) [2023-11-29 01:25:08,706 INFO L899 garLoopResultBuilder]: For program point L232-2(lines 225 241) no Hoare annotation was computed. [2023-11-29 01:25:08,706 INFO L899 garLoopResultBuilder]: For program point L230-1(line 230) no Hoare annotation was computed. [2023-11-29 01:25:08,706 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 583 596) no Hoare annotation was computed. [2023-11-29 01:25:08,706 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 319) no Hoare annotation was computed. [2023-11-29 01:25:08,706 INFO L899 garLoopResultBuilder]: For program point L315-2(lines 315 319) no Hoare annotation was computed. [2023-11-29 01:25:08,706 INFO L895 garLoopResultBuilder]: At program point L185(line 185) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 .cse0 (< ~methaneLevelCritical~0 1)) (or .cse2 .cse0 .cse1))) [2023-11-29 01:25:08,706 INFO L899 garLoopResultBuilder]: For program point L185-1(lines 166 190) no Hoare annotation was computed. [2023-11-29 01:25:08,707 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 166 190) no Hoare annotation was computed. [2023-11-29 01:25:08,707 INFO L902 garLoopResultBuilder]: At program point L255(line 255) the Hoare annotation is: true [2023-11-29 01:25:08,707 INFO L899 garLoopResultBuilder]: For program point L255-1(line 255) no Hoare annotation was computed. [2023-11-29 01:25:08,707 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 250 260) no Hoare annotation was computed. [2023-11-29 01:25:08,707 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 250 260) the Hoare annotation is: true [2023-11-29 01:25:08,710 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:25:08,711 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:25:08,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:25:08 BoogieIcfgContainer [2023-11-29 01:25:08,721 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:25:08,722 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:25:08,722 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:25:08,722 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:25:08,723 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:25:03" (3/4) ... [2023-11-29 01:25:08,724 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 01:25:08,727 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-29 01:25:08,727 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-29 01:25:08,727 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-29 01:25:08,727 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-29 01:25:08,728 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-29 01:25:08,728 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-29 01:25:08,728 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-11-29 01:25:08,728 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-11-29 01:25:08,736 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-11-29 01:25:08,736 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-29 01:25:08,737 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 01:25:08,738 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 01:25:08,738 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 01:25:08,827 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 01:25:08,828 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 01:25:08,828 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:25:08,829 INFO L158 Benchmark]: Toolchain (without parser) took 6740.29ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 107.4MB in the beginning and 111.1MB in the end (delta: -3.7MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2023-11-29 01:25:08,829 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 94.4MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:25:08,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.99ms. Allocated memory is still 146.8MB. Free memory was 107.1MB in the beginning and 87.7MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 01:25:08,830 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.52ms. Allocated memory is still 146.8MB. Free memory was 87.7MB in the beginning and 85.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:25:08,830 INFO L158 Benchmark]: Boogie Preprocessor took 45.63ms. Allocated memory is still 146.8MB. Free memory was 85.6MB in the beginning and 83.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:25:08,830 INFO L158 Benchmark]: RCFGBuilder took 467.98ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 83.1MB in the beginning and 163.3MB in the end (delta: -80.2MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2023-11-29 01:25:08,831 INFO L158 Benchmark]: TraceAbstraction took 5653.63ms. Allocated memory is still 203.4MB. Free memory was 162.3MB in the beginning and 118.5MB in the end (delta: 43.8MB). Peak memory consumption was 109.6MB. Max. memory is 16.1GB. [2023-11-29 01:25:08,831 INFO L158 Benchmark]: Witness Printer took 106.51ms. Allocated memory is still 203.4MB. Free memory was 118.5MB in the beginning and 111.1MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 01:25:08,833 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 94.4MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 408.99ms. Allocated memory is still 146.8MB. Free memory was 107.1MB in the beginning and 87.7MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.52ms. Allocated memory is still 146.8MB. Free memory was 87.7MB in the beginning and 85.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.63ms. Allocated memory is still 146.8MB. Free memory was 85.6MB in the beginning and 83.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 467.98ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 83.1MB in the beginning and 163.3MB in the end (delta: -80.2MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5653.63ms. Allocated memory is still 203.4MB. Free memory was 162.3MB in the beginning and 118.5MB in the end (delta: 43.8MB). Peak memory consumption was 109.6MB. Max. memory is 16.1GB. * Witness Printer took 106.51ms. Allocated memory is still 203.4MB. Free memory was 118.5MB in the beginning and 111.1MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 333]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [333] - GenericResultAtLocation [Line: 432]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [432] - GenericResultAtLocation [Line: 467]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [467] - GenericResultAtLocation [Line: 476]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [476] - GenericResultAtLocation [Line: 502]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [502] - GenericResultAtLocation [Line: 597]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [597] * 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: 472]: 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, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1024 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 986 mSDsluCounter, 2202 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1523 mSDsCounter, 302 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1591 IncrementalHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 302 mSolverCounterUnsat, 679 mSDtfsCounter, 1591 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 267 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=318occurred in iteration=9, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 101 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 521 PreInvPairs, 588 NumberOfFragments, 619 HoareAnnotationTreeSize, 521 FomulaSimplifications, 1149 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 24 FomulaSimplificationsInter, 2188 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 461 NumberOfCodeBlocks, 461 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 450 ConstructedInterpolants, 0 QuantifiedInterpolants, 726 SizeOfPredicates, 3 NumberOfNonLiveVariables, 315 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 75/78 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: ((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 345]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-29 01:25:08,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1043b712-3e13-401b-84e4-2f0121901ad7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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