./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2165aefdca75c2370f155996346c5c4ea8ed352d96946243b70bd7ef162ab29f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:59:30,975 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:59:31,099 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:59:31,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:59:31,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:59:31,132 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:59:31,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:59:31,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:59:31,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:59:31,135 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:59:31,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:59:31,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:59:31,137 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:59:31,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:59:31,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:59:31,139 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:59:31,140 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:59:31,141 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:59:31,141 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:59:31,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:59:31,143 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:59:31,144 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:59:31,144 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:59:31,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:59:31,146 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:59:31,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:59:31,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:59:31,149 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:59:31,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:31,151 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:59:31,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:59:31,153 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:59:31,154 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:59:31,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:59:31,154 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:59:31,155 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:59:31,155 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:59:31,155 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:59:31,155 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:59:31,156 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_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2165aefdca75c2370f155996346c5c4ea8ed352d96946243b70bd7ef162ab29f [2023-11-19 07:59:31,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:59:31,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:59:31,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:59:31,562 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:59:31,562 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:59:31,564 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2023-11-19 07:59:34,730 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:59:35,061 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:59:35,061 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2023-11-19 07:59:35,078 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/data/851eb5e8f/df5f6329e1d7403589973238704636ab/FLAG840dfe62e [2023-11-19 07:59:35,094 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/data/851eb5e8f/df5f6329e1d7403589973238704636ab [2023-11-19 07:59:35,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:59:35,098 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:59:35,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:35,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:59:35,105 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:59:35,107 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:35" (1/1) ... [2023-11-19 07:59:35,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e09f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35, skipping insertion in model container [2023-11-19 07:59:35,108 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:35" (1/1) ... [2023-11-19 07:59:35,162 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:59:35,391 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_a036b7f6-0932-434a-82bd-1a23a930af4e/sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c[8940,8953] [2023-11-19 07:59:35,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:35,462 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:59:35,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-11-19 07:59:35,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [153] [2023-11-19 07:59:35,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [182] [2023-11-19 07:59:35,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [290] [2023-11-19 07:59:35,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [325] [2023-11-19 07:59:35,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [540] [2023-11-19 07:59:35,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [607] [2023-11-19 07:59:35,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [616] [2023-11-19 07:59:35,507 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_a036b7f6-0932-434a-82bd-1a23a930af4e/sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c[8940,8953] [2023-11-19 07:59:35,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:35,583 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:59:35,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35 WrapperNode [2023-11-19 07:59:35,585 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:35,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:35,588 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:59:35,588 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:59:35,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ... [2023-11-19 07:59:35,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ... [2023-11-19 07:59:35,647 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 24, calls inlined = 20, statements flattened = 207 [2023-11-19 07:59:35,647 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:35,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:59:35,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:59:35,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:59:35,660 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ... [2023-11-19 07:59:35,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ... [2023-11-19 07:59:35,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ... [2023-11-19 07:59:35,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ... [2023-11-19 07:59:35,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ... [2023-11-19 07:59:35,676 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ... [2023-11-19 07:59:35,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ... [2023-11-19 07:59:35,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ... [2023-11-19 07:59:35,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:59:35,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:59:35,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:59:35,686 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:59:35,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (1/1) ... [2023-11-19 07:59:35,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:35,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:35,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:35,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:59:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:59:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 07:59:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 07:59:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 07:59:35,790 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 07:59:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 07:59:35,791 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 07:59:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:59:35,792 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:59:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 07:59:35,792 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 07:59:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-19 07:59:35,793 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-19 07:59:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:59:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 07:59:35,794 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 07:59:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:59:35,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:59:35,923 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:59:35,926 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:59:36,260 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:59:36,269 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:59:36,270 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:59:36,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:36 BoogieIcfgContainer [2023-11-19 07:59:36,274 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:59:36,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:59:36,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:59:36,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:59:36,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:35" (1/3) ... [2023-11-19 07:59:36,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393a265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:36, skipping insertion in model container [2023-11-19 07:59:36,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:35" (2/3) ... [2023-11-19 07:59:36,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393a265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:36, skipping insertion in model container [2023-11-19 07:59:36,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:36" (3/3) ... [2023-11-19 07:59:36,284 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2023-11-19 07:59:36,305 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:59:36,305 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:59:36,359 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:59:36,366 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;@57556591, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:59:36,367 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:59:36,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 77 states have internal predecessors, (95), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:59:36,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 07:59:36,380 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:36,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:36,382 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:36,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:36,395 INFO L85 PathProgramCache]: Analyzing trace with hash -883530062, now seen corresponding path program 1 times [2023-11-19 07:59:36,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:36,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920475901] [2023-11-19 07:59:36,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:36,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:36,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:36,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:36,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920475901] [2023-11-19 07:59:36,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920475901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:36,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:36,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:36,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213302539] [2023-11-19 07:59:36,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:36,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:59:36,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:36,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:59:36,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:59:36,674 INFO L87 Difference]: Start difference. First operand has 89 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 77 states have internal predecessors, (95), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:36,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:36,736 INFO L93 Difference]: Finished difference Result 170 states and 233 transitions. [2023-11-19 07:59:36,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:59:36,738 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-19 07:59:36,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:36,750 INFO L225 Difference]: With dead ends: 170 [2023-11-19 07:59:36,751 INFO L226 Difference]: Without dead ends: 80 [2023-11-19 07:59:36,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:59:36,761 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:36,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:59:36,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-19 07:59:36,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-11-19 07:59:36,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 69 states have internal predecessors, (81), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:59:36,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 104 transitions. [2023-11-19 07:59:36,851 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 104 transitions. Word has length 19 [2023-11-19 07:59:36,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:36,852 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 104 transitions. [2023-11-19 07:59:36,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:36,853 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 104 transitions. [2023-11-19 07:59:36,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 07:59:36,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:36,855 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] [2023-11-19 07:59:36,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:59:36,856 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:36,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:36,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1969487031, now seen corresponding path program 1 times [2023-11-19 07:59:36,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:36,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194463311] [2023-11-19 07:59:36,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:36,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:37,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:37,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:37,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194463311] [2023-11-19 07:59:37,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194463311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:37,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:37,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:59:37,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084310174] [2023-11-19 07:59:37,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:37,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:37,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:37,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:37,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:37,025 INFO L87 Difference]: Start difference. First operand 80 states and 104 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:37,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:37,042 INFO L93 Difference]: Finished difference Result 122 states and 158 transitions. [2023-11-19 07:59:37,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:37,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-19 07:59:37,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:37,045 INFO L225 Difference]: With dead ends: 122 [2023-11-19 07:59:37,045 INFO L226 Difference]: Without dead ends: 71 [2023-11-19 07:59:37,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:37,048 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 16 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:37,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 161 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:59:37,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-19 07:59:37,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-11-19 07:59:37,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 63 states have internal predecessors, (74), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:59:37,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 92 transitions. [2023-11-19 07:59:37,062 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 92 transitions. Word has length 20 [2023-11-19 07:59:37,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:37,062 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 92 transitions. [2023-11-19 07:59:37,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:37,063 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 92 transitions. [2023-11-19 07:59:37,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 07:59:37,070 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:37,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:37,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:59:37,071 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:37,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:37,073 INFO L85 PathProgramCache]: Analyzing trace with hash 389175485, now seen corresponding path program 1 times [2023-11-19 07:59:37,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:37,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397251437] [2023-11-19 07:59:37,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:37,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:37,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:37,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:37,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397251437] [2023-11-19 07:59:37,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397251437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:37,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:37,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:59:37,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118160775] [2023-11-19 07:59:37,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:37,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:59:37,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:37,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:59:37,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:59:37,383 INFO L87 Difference]: Start difference. First operand 71 states and 92 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:37,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:37,635 INFO L93 Difference]: Finished difference Result 236 states and 313 transitions. [2023-11-19 07:59:37,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:59:37,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-11-19 07:59:37,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:37,643 INFO L225 Difference]: With dead ends: 236 [2023-11-19 07:59:37,644 INFO L226 Difference]: Without dead ends: 172 [2023-11-19 07:59:37,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:59:37,647 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 245 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:37,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 397 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:59:37,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-19 07:59:37,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 166. [2023-11-19 07:59:37,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 127 states have (on average 1.3779527559055118) internal successors, (175), 145 states have internal predecessors, (175), 22 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (23), 14 states have call predecessors, (23), 22 states have call successors, (23) [2023-11-19 07:59:37,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 220 transitions. [2023-11-19 07:59:37,682 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 220 transitions. Word has length 24 [2023-11-19 07:59:37,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:37,683 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 220 transitions. [2023-11-19 07:59:37,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:37,683 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 220 transitions. [2023-11-19 07:59:37,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 07:59:37,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:37,686 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] [2023-11-19 07:59:37,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:59:37,686 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:37,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:37,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1254129459, now seen corresponding path program 1 times [2023-11-19 07:59:37,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:37,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337527061] [2023-11-19 07:59:37,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:37,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:37,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:37,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:37,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337527061] [2023-11-19 07:59:37,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337527061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:37,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:37,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:59:37,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836201748] [2023-11-19 07:59:37,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:37,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:59:37,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:37,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:59:37,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:59:37,908 INFO L87 Difference]: Start difference. First operand 166 states and 220 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:38,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:38,203 INFO L93 Difference]: Finished difference Result 621 states and 878 transitions. [2023-11-19 07:59:38,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:59:38,204 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-11-19 07:59:38,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:38,221 INFO L225 Difference]: With dead ends: 621 [2023-11-19 07:59:38,221 INFO L226 Difference]: Without dead ends: 462 [2023-11-19 07:59:38,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:59:38,227 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 182 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:38,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 558 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:59:38,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-11-19 07:59:38,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 453. [2023-11-19 07:59:38,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 344 states have (on average 1.3517441860465116) internal successors, (465), 393 states have internal predecessors, (465), 63 states have call successors, (63), 45 states have call predecessors, (63), 45 states have return successors, (87), 39 states have call predecessors, (87), 63 states have call successors, (87) [2023-11-19 07:59:38,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 615 transitions. [2023-11-19 07:59:38,335 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 615 transitions. Word has length 28 [2023-11-19 07:59:38,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:38,335 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 615 transitions. [2023-11-19 07:59:38,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:38,336 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 615 transitions. [2023-11-19 07:59:38,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 07:59:38,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:38,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:38,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:59:38,340 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:38,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:38,341 INFO L85 PathProgramCache]: Analyzing trace with hash 183678264, now seen corresponding path program 1 times [2023-11-19 07:59:38,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:38,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528288886] [2023-11-19 07:59:38,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:38,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:38,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:38,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:38,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528288886] [2023-11-19 07:59:38,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528288886] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:38,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:38,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:38,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962380062] [2023-11-19 07:59:38,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:38,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:38,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:38,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:38,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:38,418 INFO L87 Difference]: Start difference. First operand 453 states and 615 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:38,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:38,501 INFO L93 Difference]: Finished difference Result 1062 states and 1501 transitions. [2023-11-19 07:59:38,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:38,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-11-19 07:59:38,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:38,510 INFO L225 Difference]: With dead ends: 1062 [2023-11-19 07:59:38,510 INFO L226 Difference]: Without dead ends: 616 [2023-11-19 07:59:38,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:38,515 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 51 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:38,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 148 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:59:38,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2023-11-19 07:59:38,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 603. [2023-11-19 07:59:38,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 466 states have (on average 1.3004291845493563) internal successors, (606), 505 states have internal predecessors, (606), 69 states have call successors, (69), 65 states have call predecessors, (69), 67 states have return successors, (132), 65 states have call predecessors, (132), 69 states have call successors, (132) [2023-11-19 07:59:38,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 807 transitions. [2023-11-19 07:59:38,588 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 807 transitions. Word has length 30 [2023-11-19 07:59:38,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:38,588 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 807 transitions. [2023-11-19 07:59:38,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:38,589 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 807 transitions. [2023-11-19 07:59:38,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 07:59:38,594 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:38,595 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 07:59:38,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:59:38,595 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:38,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:38,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1087568588, now seen corresponding path program 1 times [2023-11-19 07:59:38,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:38,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783739433] [2023-11-19 07:59:38,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:38,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:38,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:59:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:38,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-19 07:59:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:38,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:59:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:38,782 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-19 07:59:38,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:38,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783739433] [2023-11-19 07:59:38,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783739433] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:38,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937035481] [2023-11-19 07:59:38,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:38,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:38,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:38,786 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:38,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:59:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:38,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:59:38,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:39,154 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:59:39,155 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:39,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937035481] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:59:39,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:59:39,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 15 [2023-11-19 07:59:39,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983825819] [2023-11-19 07:59:39,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:39,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-19 07:59:39,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:39,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 07:59:39,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:59:39,468 INFO L87 Difference]: Start difference. First operand 603 states and 807 transitions. Second operand has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 12 states have internal predecessors, (89), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-19 07:59:41,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:41,511 INFO L93 Difference]: Finished difference Result 1664 states and 2299 transitions. [2023-11-19 07:59:41,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-11-19 07:59:41,512 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 12 states have internal predecessors, (89), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 53 [2023-11-19 07:59:41,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:41,523 INFO L225 Difference]: With dead ends: 1664 [2023-11-19 07:59:41,523 INFO L226 Difference]: Without dead ends: 1236 [2023-11-19 07:59:41,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 101 SyntacticMatches, 4 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 998 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=713, Invalid=2947, Unknown=0, NotChecked=0, Total=3660 [2023-11-19 07:59:41,529 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 617 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:41,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 1295 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 07:59:41,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2023-11-19 07:59:41,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1099. [2023-11-19 07:59:41,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 850 states have (on average 1.275294117647059) internal successors, (1084), 919 states have internal predecessors, (1084), 115 states have call successors, (115), 107 states have call predecessors, (115), 133 states have return successors, (257), 114 states have call predecessors, (257), 115 states have call successors, (257) [2023-11-19 07:59:41,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1456 transitions. [2023-11-19 07:59:41,650 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1456 transitions. Word has length 53 [2023-11-19 07:59:41,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:41,650 INFO L495 AbstractCegarLoop]: Abstraction has 1099 states and 1456 transitions. [2023-11-19 07:59:41,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 12 states have internal predecessors, (89), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-19 07:59:41,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1456 transitions. [2023-11-19 07:59:41,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-19 07:59:41,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:41,656 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:41,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:41,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:41,875 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:41,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:41,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1883090513, now seen corresponding path program 1 times [2023-11-19 07:59:41,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:41,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178269033] [2023-11-19 07:59:41,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:41,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:42,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:59:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:42,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:59:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:42,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-19 07:59:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:42,105 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:59:42,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:42,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178269033] [2023-11-19 07:59:42,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178269033] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:42,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531994376] [2023-11-19 07:59:42,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:42,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:42,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:42,111 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:42,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:59:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:42,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:59:42,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:42,241 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 07:59:42,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:42,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531994376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:42,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:59:42,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-11-19 07:59:42,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16822178] [2023-11-19 07:59:42,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:42,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:42,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:42,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:42,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:59:42,245 INFO L87 Difference]: Start difference. First operand 1099 states and 1456 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:59:42,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:42,367 INFO L93 Difference]: Finished difference Result 2125 states and 2843 transitions. [2023-11-19 07:59:42,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:42,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 71 [2023-11-19 07:59:42,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:42,378 INFO L225 Difference]: With dead ends: 2125 [2023-11-19 07:59:42,378 INFO L226 Difference]: Without dead ends: 1033 [2023-11-19 07:59:42,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:59:42,385 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 58 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:42,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 187 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:59:42,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2023-11-19 07:59:42,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1029. [2023-11-19 07:59:42,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 800 states have (on average 1.25375) internal successors, (1003), 861 states have internal predecessors, (1003), 105 states have call successors, (105), 101 states have call predecessors, (105), 123 states have return successors, (171), 108 states have call predecessors, (171), 105 states have call successors, (171) [2023-11-19 07:59:42,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1279 transitions. [2023-11-19 07:59:42,500 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1279 transitions. Word has length 71 [2023-11-19 07:59:42,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:42,502 INFO L495 AbstractCegarLoop]: Abstraction has 1029 states and 1279 transitions. [2023-11-19 07:59:42,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:59:42,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1279 transitions. [2023-11-19 07:59:42,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 07:59:42,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:42,507 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 07:59:42,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:42,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 07:59:42,721 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:42,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:42,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1355372799, now seen corresponding path program 1 times [2023-11-19 07:59:42,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:42,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637891362] [2023-11-19 07:59:42,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:42,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:42,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:59:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:42,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:59:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:42,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-19 07:59:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:42,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:59:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:42,880 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 07:59:42,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:42,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637891362] [2023-11-19 07:59:42,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637891362] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:42,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275977187] [2023-11-19 07:59:42,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:42,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:42,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:42,886 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:42,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:59:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:42,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:59:42,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:42,990 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 07:59:42,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:42,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275977187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:42,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:59:42,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 8 [2023-11-19 07:59:42,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003488654] [2023-11-19 07:59:42,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:42,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:59:42,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:42,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:59:42,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:59:42,995 INFO L87 Difference]: Start difference. First operand 1029 states and 1279 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:59:43,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:43,077 INFO L93 Difference]: Finished difference Result 2051 states and 2581 transitions. [2023-11-19 07:59:43,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:59:43,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 72 [2023-11-19 07:59:43,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:43,087 INFO L225 Difference]: With dead ends: 2051 [2023-11-19 07:59:43,087 INFO L226 Difference]: Without dead ends: 1029 [2023-11-19 07:59:43,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:59:43,097 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 10 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:43,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 265 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:59:43,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2023-11-19 07:59:43,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 1029. [2023-11-19 07:59:43,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 800 states have (on average 1.24625) internal successors, (997), 861 states have internal predecessors, (997), 105 states have call successors, (105), 101 states have call predecessors, (105), 123 states have return successors, (171), 108 states have call predecessors, (171), 105 states have call successors, (171) [2023-11-19 07:59:43,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1273 transitions. [2023-11-19 07:59:43,186 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1273 transitions. Word has length 72 [2023-11-19 07:59:43,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:43,186 INFO L495 AbstractCegarLoop]: Abstraction has 1029 states and 1273 transitions. [2023-11-19 07:59:43,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:59:43,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1273 transitions. [2023-11-19 07:59:43,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 07:59:43,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:43,190 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 07:59:43,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:43,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 07:59:43,405 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:43,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:43,405 INFO L85 PathProgramCache]: Analyzing trace with hash -583789247, now seen corresponding path program 1 times [2023-11-19 07:59:43,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:43,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351561922] [2023-11-19 07:59:43,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:43,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:43,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:59:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:43,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:59:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:43,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-19 07:59:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:43,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:59:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:43,619 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 07:59:43,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:43,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351561922] [2023-11-19 07:59:43,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351561922] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:43,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545211177] [2023-11-19 07:59:43,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:43,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:43,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:43,621 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:43,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:59:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:43,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:59:43,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:43,747 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 07:59:43,748 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:43,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545211177] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:43,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:59:43,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2023-11-19 07:59:43,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630728635] [2023-11-19 07:59:43,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:43,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:59:43,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:43,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:59:43,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:59:43,750 INFO L87 Difference]: Start difference. First operand 1029 states and 1273 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:59:43,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:43,834 INFO L93 Difference]: Finished difference Result 1914 states and 2412 transitions. [2023-11-19 07:59:43,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:59:43,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 72 [2023-11-19 07:59:43,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:43,842 INFO L225 Difference]: With dead ends: 1914 [2023-11-19 07:59:43,842 INFO L226 Difference]: Without dead ends: 934 [2023-11-19 07:59:43,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:59:43,847 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 7 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:43,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 351 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:59:43,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2023-11-19 07:59:43,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 928. [2023-11-19 07:59:43,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 721 states have (on average 1.2399445214979194) internal successors, (894), 773 states have internal predecessors, (894), 100 states have call successors, (100), 96 states have call predecessors, (100), 106 states have return successors, (151), 97 states have call predecessors, (151), 100 states have call successors, (151) [2023-11-19 07:59:43,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1145 transitions. [2023-11-19 07:59:43,919 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1145 transitions. Word has length 72 [2023-11-19 07:59:43,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:43,920 INFO L495 AbstractCegarLoop]: Abstraction has 928 states and 1145 transitions. [2023-11-19 07:59:43,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:59:43,920 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1145 transitions. [2023-11-19 07:59:43,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 07:59:43,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:43,922 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 07:59:43,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:44,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:44,144 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:44,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:44,145 INFO L85 PathProgramCache]: Analyzing trace with hash -547601245, now seen corresponding path program 1 times [2023-11-19 07:59:44,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:44,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320324082] [2023-11-19 07:59:44,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:44,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:44,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:59:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:44,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:59:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:44,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:59:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:44,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:59:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:44,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:59:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:44,399 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:59:44,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:44,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320324082] [2023-11-19 07:59:44,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320324082] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:44,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766987602] [2023-11-19 07:59:44,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:44,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:44,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:44,401 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:44,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:59:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:44,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:59:44,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:44,584 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:59:44,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766987602] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:59:44,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:59:44,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2023-11-19 07:59:44,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886216901] [2023-11-19 07:59:44,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:44,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:59:44,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:44,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:59:44,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:59:44,686 INFO L87 Difference]: Start difference. First operand 928 states and 1145 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:59:45,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:45,303 INFO L93 Difference]: Finished difference Result 1722 states and 2145 transitions. [2023-11-19 07:59:45,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 07:59:45,304 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 76 [2023-11-19 07:59:45,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:45,311 INFO L225 Difference]: With dead ends: 1722 [2023-11-19 07:59:45,311 INFO L226 Difference]: Without dead ends: 914 [2023-11-19 07:59:45,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 159 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2023-11-19 07:59:45,315 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 246 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:45,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 545 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:59:45,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2023-11-19 07:59:45,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 846. [2023-11-19 07:59:45,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 653 states have (on average 1.215926493108729) internal successors, (794), 703 states have internal predecessors, (794), 93 states have call successors, (93), 89 states have call predecessors, (93), 99 states have return successors, (142), 85 states have call predecessors, (142), 93 states have call successors, (142) [2023-11-19 07:59:45,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1029 transitions. [2023-11-19 07:59:45,398 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1029 transitions. Word has length 76 [2023-11-19 07:59:45,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:45,399 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 1029 transitions. [2023-11-19 07:59:45,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:59:45,400 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1029 transitions. [2023-11-19 07:59:45,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-19 07:59:45,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:45,403 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:45,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:45,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:45,617 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:45,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:45,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1199368341, now seen corresponding path program 2 times [2023-11-19 07:59:45,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:45,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579319130] [2023-11-19 07:59:45,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:45,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:45,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:59:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:45,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:59:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:45,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:59:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:45,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:59:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:45,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:59:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:45,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:59:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:45,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-19 07:59:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:45,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:59:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:45,967 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 51 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:59:45,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:45,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579319130] [2023-11-19 07:59:45,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579319130] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:45,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390975762] [2023-11-19 07:59:45,968 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:59:45,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:45,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:45,970 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:46,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:59:46,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:59:46,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:59:46,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:59:46,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:46,278 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:59:46,278 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:46,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390975762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:46,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:59:46,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-11-19 07:59:46,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960661919] [2023-11-19 07:59:46,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:46,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:59:46,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:46,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:59:46,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:59:46,283 INFO L87 Difference]: Start difference. First operand 846 states and 1029 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 07:59:46,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:46,589 INFO L93 Difference]: Finished difference Result 2235 states and 2810 transitions. [2023-11-19 07:59:46,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:59:46,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 110 [2023-11-19 07:59:46,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:46,601 INFO L225 Difference]: With dead ends: 2235 [2023-11-19 07:59:46,601 INFO L226 Difference]: Without dead ends: 1503 [2023-11-19 07:59:46,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 122 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2023-11-19 07:59:46,606 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 205 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:46,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 503 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:59:46,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2023-11-19 07:59:46,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1377. [2023-11-19 07:59:46,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1064 states have (on average 1.2067669172932332) internal successors, (1284), 1137 states have internal predecessors, (1284), 156 states have call successors, (156), 148 states have call predecessors, (156), 156 states have return successors, (231), 137 states have call predecessors, (231), 156 states have call successors, (231) [2023-11-19 07:59:46,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 1671 transitions. [2023-11-19 07:59:46,732 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 1671 transitions. Word has length 110 [2023-11-19 07:59:46,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:46,732 INFO L495 AbstractCegarLoop]: Abstraction has 1377 states and 1671 transitions. [2023-11-19 07:59:46,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 07:59:46,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1671 transitions. [2023-11-19 07:59:46,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-19 07:59:46,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:46,737 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:46,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:46,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:46,958 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:46,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:46,958 INFO L85 PathProgramCache]: Analyzing trace with hash -755467667, now seen corresponding path program 1 times [2023-11-19 07:59:46,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:46,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039658491] [2023-11-19 07:59:46,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:46,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:47,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:59:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:47,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:59:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:47,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:59:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:47,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:59:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:47,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:59:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:47,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:59:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:47,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-19 07:59:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:47,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:59:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:47,159 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-19 07:59:47,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:47,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039658491] [2023-11-19 07:59:47,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039658491] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:47,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:47,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:59:47,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624877311] [2023-11-19 07:59:47,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:47,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:59:47,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:47,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:59:47,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:59:47,163 INFO L87 Difference]: Start difference. First operand 1377 states and 1671 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 07:59:47,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:47,417 INFO L93 Difference]: Finished difference Result 1915 states and 2312 transitions. [2023-11-19 07:59:47,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:59:47,417 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 110 [2023-11-19 07:59:47,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:47,418 INFO L225 Difference]: With dead ends: 1915 [2023-11-19 07:59:47,418 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:59:47,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:59:47,423 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 69 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:47,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 335 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:59:47,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:59:47,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:59:47,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:47,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:59:47,425 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2023-11-19 07:59:47,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:47,426 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:59:47,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 07:59:47,426 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:59:47,426 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:59:47,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:59:47,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:59:47,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:59:48,761 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 423 430) no Hoare annotation was computed. [2023-11-19 07:59:48,761 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 423 430) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) (= 0 ~systemActive~0)) [2023-11-19 07:59:48,761 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 423 430) no Hoare annotation was computed. [2023-11-19 07:59:48,761 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 356 362) no Hoare annotation was computed. [2023-11-19 07:59:48,762 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 356 362) the Hoare annotation is: true [2023-11-19 07:59:48,762 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 214 225) the Hoare annotation is: true [2023-11-19 07:59:48,762 INFO L899 garLoopResultBuilder]: For program point L218-1(lines 214 225) no Hoare annotation was computed. [2023-11-19 07:59:48,762 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 214 225) no Hoare annotation was computed. [2023-11-19 07:59:48,762 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDry_returnLabel#1(lines 281 289) no Hoare annotation was computed. [2023-11-19 07:59:48,762 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 332 355) no Hoare annotation was computed. [2023-11-19 07:59:48,762 INFO L899 garLoopResultBuilder]: For program point L515(lines 515 519) no Hoare annotation was computed. [2023-11-19 07:59:48,762 INFO L899 garLoopResultBuilder]: For program point L515-2(lines 515 519) no Hoare annotation was computed. [2023-11-19 07:59:48,763 INFO L899 garLoopResultBuilder]: For program point getWaterLevel_returnLabel#1(lines 258 266) no Hoare annotation was computed. [2023-11-19 07:59:48,763 INFO L895 garLoopResultBuilder]: At program point L404(line 404) the Hoare annotation is: (let ((.cse0 (< |old(~waterLevel~0)| 2)) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= 0 ~systemActive~0)) (or .cse1 .cse0) (or .cse1 (not (= |old(~waterLevel~0)| 1))))) [2023-11-19 07:59:48,763 INFO L895 garLoopResultBuilder]: At program point L400(line 400) the Hoare annotation is: (let ((.cse0 (< |old(~waterLevel~0)| 2)) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_processEnvironment_~tmp~3#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) (or .cse1 .cse0) (or .cse1 (not (= |old(~waterLevel~0)| 1))))) [2023-11-19 07:59:48,763 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 175) no Hoare annotation was computed. [2023-11-19 07:59:48,763 INFO L899 garLoopResultBuilder]: For program point L165(lines 165 178) no Hoare annotation was computed. [2023-11-19 07:59:48,763 INFO L899 garLoopResultBuilder]: For program point L165-1(lines 157 181) no Hoare annotation was computed. [2023-11-19 07:59:48,764 INFO L899 garLoopResultBuilder]: For program point L194(lines 194 198) no Hoare annotation was computed. [2023-11-19 07:59:48,764 INFO L899 garLoopResultBuilder]: For program point L194-2(lines 190 201) no Hoare annotation was computed. [2023-11-19 07:59:48,764 INFO L895 garLoopResultBuilder]: At program point L409(line 409) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or (< |old(~waterLevel~0)| 2) .cse0 .cse1) (or (not .cse0) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not .cse1))))) [2023-11-19 07:59:48,764 INFO L899 garLoopResultBuilder]: For program point L409-1(lines 390 414) no Hoare annotation was computed. [2023-11-19 07:59:48,764 INFO L899 garLoopResultBuilder]: For program point L343-1(lines 343 349) no Hoare annotation was computed. [2023-11-19 07:59:48,764 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 608 615) no Hoare annotation was computed. [2023-11-19 07:59:48,764 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 332 355) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) .cse0)) (or (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (= 0 ~systemActive~0)))) [2023-11-19 07:59:48,765 INFO L899 garLoopResultBuilder]: For program point L612(line 612) no Hoare annotation was computed. [2023-11-19 07:59:48,765 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevel_returnLabel#1(lines 506 524) no Hoare annotation was computed. [2023-11-19 07:59:48,765 INFO L899 garLoopResultBuilder]: For program point L336-1(lines 335 354) no Hoare annotation was computed. [2023-11-19 07:59:48,765 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 406) no Hoare annotation was computed. [2023-11-19 07:59:48,765 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 332 355) no Hoare annotation was computed. [2023-11-19 07:59:48,765 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 411) no Hoare annotation was computed. [2023-11-19 07:59:48,765 INFO L899 garLoopResultBuilder]: For program point isPumpRunning_returnLabel#1(lines 442 450) no Hoare annotation was computed. [2023-11-19 07:59:48,765 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 612) no Hoare annotation was computed. [2023-11-19 07:59:48,766 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2023-11-19 07:59:48,766 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2023-11-19 07:59:48,766 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2023-11-19 07:59:48,766 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2023-11-19 07:59:48,766 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-11-19 07:59:48,766 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-11-19 07:59:48,766 INFO L899 garLoopResultBuilder]: For program point L77(lines 52 81) no Hoare annotation was computed. [2023-11-19 07:59:48,766 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2023-11-19 07:59:48,767 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-11-19 07:59:48,767 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-11-19 07:59:48,767 INFO L895 garLoopResultBuilder]: At program point L531(line 531) the Hoare annotation is: (and (not (= ~pumpRunning~0 0)) (<= 2 ~waterLevel~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2023-11-19 07:59:48,767 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 117 126) no Hoare annotation was computed. [2023-11-19 07:59:48,767 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 302 308) no Hoare annotation was computed. [2023-11-19 07:59:48,767 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 130 152) no Hoare annotation was computed. [2023-11-19 07:59:48,767 INFO L899 garLoopResultBuilder]: For program point L552(lines 551 598) no Hoare annotation was computed. [2023-11-19 07:59:48,767 INFO L899 garLoopResultBuilder]: For program point L581(lines 581 594) no Hoare annotation was computed. [2023-11-19 07:59:48,768 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:59:48,768 INFO L895 garLoopResultBuilder]: At program point L573(line 573) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))))) [2023-11-19 07:59:48,768 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:59:48,768 INFO L899 garLoopResultBuilder]: For program point L602(lines 541 606) no Hoare annotation was computed. [2023-11-19 07:59:48,768 INFO L899 garLoopResultBuilder]: For program point L561(lines 561 567) no Hoare annotation was computed. [2023-11-19 07:59:48,768 INFO L899 garLoopResultBuilder]: For program point L561-1(lines 561 567) no Hoare annotation was computed. [2023-11-19 07:59:48,772 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2023-11-19 07:59:48,772 INFO L899 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2023-11-19 07:59:48,772 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 109 115) no Hoare annotation was computed. [2023-11-19 07:59:48,772 INFO L899 garLoopResultBuilder]: For program point L553(lines 553 557) no Hoare annotation was computed. [2023-11-19 07:59:48,772 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:59:48,773 INFO L895 garLoopResultBuilder]: At program point L599(lines 550 600) the Hoare annotation is: false [2023-11-19 07:59:48,773 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 535) no Hoare annotation was computed. [2023-11-19 07:59:48,773 INFO L899 garLoopResultBuilder]: For program point L529-1(lines 529 535) no Hoare annotation was computed. [2023-11-19 07:59:48,773 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2023-11-19 07:59:48,773 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:59:48,773 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 309 315) no Hoare annotation was computed. [2023-11-19 07:59:48,773 INFO L895 garLoopResultBuilder]: At program point L587-2(lines 581 594) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))))) [2023-11-19 07:59:48,774 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 577) no Hoare annotation was computed. [2023-11-19 07:59:48,774 INFO L899 garLoopResultBuilder]: For program point L571-1(lines 571 577) no Hoare annotation was computed. [2023-11-19 07:59:48,774 INFO L895 garLoopResultBuilder]: At program point L596(lines 551 598) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))))) [2023-11-19 07:59:48,774 INFO L895 garLoopResultBuilder]: At program point L563(line 563) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))))) [2023-11-19 07:59:48,774 INFO L899 garLoopResultBuilder]: For program point stopSystem_returnLabel#1(lines 525 539) no Hoare annotation was computed. [2023-11-19 07:59:48,774 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 316 324) no Hoare annotation was computed. [2023-11-19 07:59:48,775 INFO L899 garLoopResultBuilder]: For program point activatePump_returnLabel#1(lines 415 422) no Hoare annotation was computed. [2023-11-19 07:59:48,776 INFO L895 garLoopResultBuilder]: At program point L378(line 378) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0 .cse1 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0)) (= 0 ~systemActive~0))) [2023-11-19 07:59:48,776 INFO L899 garLoopResultBuilder]: For program point L372(lines 372 380) no Hoare annotation was computed. [2023-11-19 07:59:48,777 INFO L899 garLoopResultBuilder]: For program point L368(lines 368 385) no Hoare annotation was computed. [2023-11-19 07:59:48,777 INFO L899 garLoopResultBuilder]: For program point L496(lines 496 500) no Hoare annotation was computed. [2023-11-19 07:59:48,777 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 277) no Hoare annotation was computed. [2023-11-19 07:59:48,777 INFO L899 garLoopResultBuilder]: For program point L496-2(lines 496 500) no Hoare annotation was computed. [2023-11-19 07:59:48,777 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 364 388) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-11-19 07:59:48,777 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 267 280) no Hoare annotation was computed. [2023-11-19 07:59:48,778 INFO L895 garLoopResultBuilder]: At program point L383(line 383) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-11-19 07:59:48,778 INFO L899 garLoopResultBuilder]: For program point L383-1(lines 364 388) no Hoare annotation was computed. [2023-11-19 07:59:48,778 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 487 505) no Hoare annotation was computed. [2023-11-19 07:59:48,778 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 364 388) no Hoare annotation was computed. [2023-11-19 07:59:48,778 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 202 213) no Hoare annotation was computed. [2023-11-19 07:59:48,778 INFO L899 garLoopResultBuilder]: For program point L206-1(lines 202 213) no Hoare annotation was computed. [2023-11-19 07:59:48,779 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 202 213) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or .cse1 .cse2 (= 0 ~systemActive~0)))) [2023-11-19 07:59:48,783 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:48,785 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:59:48,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:59:48 BoogieIcfgContainer [2023-11-19 07:59:48,804 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:59:48,805 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:59:48,805 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:59:48,805 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:59:48,806 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:36" (3/4) ... [2023-11-19 07:59:48,808 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:59:48,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-19 07:59:48,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-19 07:59:48,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-19 07:59:48,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-19 07:59:48,814 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-19 07:59:48,814 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:59:48,814 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-19 07:59:48,831 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-19 07:59:48,831 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 07:59:48,832 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 07:59:48,833 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:59:48,833 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:59:48,993 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:59:48,994 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:59:48,994 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:59:48,995 INFO L158 Benchmark]: Toolchain (without parser) took 13896.61ms. Allocated memory was 159.4MB in the beginning and 239.1MB in the end (delta: 79.7MB). Free memory was 125.1MB in the beginning and 138.7MB in the end (delta: -13.5MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:48,995 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 159.4MB. Free memory is still 130.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:48,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 486.55ms. Allocated memory is still 159.4MB. Free memory was 124.5MB in the beginning and 105.1MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:59:48,996 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.92ms. Allocated memory is still 159.4MB. Free memory was 105.1MB in the beginning and 103.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:48,997 INFO L158 Benchmark]: Boogie Preprocessor took 36.68ms. Allocated memory is still 159.4MB. Free memory was 103.0MB in the beginning and 101.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:48,997 INFO L158 Benchmark]: RCFGBuilder took 589.25ms. Allocated memory is still 159.4MB. Free memory was 101.5MB in the beginning and 84.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:59:48,997 INFO L158 Benchmark]: TraceAbstraction took 12526.92ms. Allocated memory was 159.4MB in the beginning and 239.1MB in the end (delta: 79.7MB). Free memory was 84.1MB in the beginning and 146.0MB in the end (delta: -61.9MB). Peak memory consumption was 98.2MB. Max. memory is 16.1GB. [2023-11-19 07:59:48,998 INFO L158 Benchmark]: Witness Printer took 189.38ms. Allocated memory is still 239.1MB. Free memory was 146.0MB in the beginning and 138.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:59:49,000 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 159.4MB. Free memory is still 130.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 486.55ms. Allocated memory is still 159.4MB. Free memory was 124.5MB in the beginning and 105.1MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.92ms. Allocated memory is still 159.4MB. Free memory was 105.1MB in the beginning and 103.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.68ms. Allocated memory is still 159.4MB. Free memory was 103.0MB in the beginning and 101.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 589.25ms. Allocated memory is still 159.4MB. Free memory was 101.5MB in the beginning and 84.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 12526.92ms. Allocated memory was 159.4MB in the beginning and 239.1MB in the end (delta: 79.7MB). Free memory was 84.1MB in the beginning and 146.0MB in the end (delta: -61.9MB). Peak memory consumption was 98.2MB. Max. memory is 16.1GB. * Witness Printer took 189.38ms. Allocated memory is still 239.1MB. Free memory was 146.0MB in the beginning and 138.7MB 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,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [153] - GenericResultAtLocation [Line: 182]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [182] - GenericResultAtLocation [Line: 290]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [290] - GenericResultAtLocation [Line: 325]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [325] - GenericResultAtLocation [Line: 540]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [540] - GenericResultAtLocation [Line: 607]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [607] - GenericResultAtLocation [Line: 616]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [616] * 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: 612]: 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 8 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.4s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1731 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1706 mSDsluCounter, 4858 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3619 mSDsCounter, 311 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2288 IncrementalHoareTripleChecker+Invalid, 2599 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 311 mSolverCounterUnsat, 1239 mSDtfsCounter, 2288 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 811 GetRequests, 648 SyntacticMatches, 13 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1220 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1377occurred in iteration=11, InterpolantAutomatonStates: 134, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 12 MinimizatonAttempts, 369 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 1620 PreInvPairs, 1715 NumberOfFragments, 342 HoareAnnotationTreeSize, 1620 FomulaSimplifications, 2799 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 21 FomulaSimplificationsInter, 4098 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1139 NumberOfCodeBlocks, 1139 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1248 ConstructedInterpolants, 0 QuantifiedInterpolants, 2285 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1660 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 20 InterpolantComputations, 10 PerfectInterpolantSequences, 424/472 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: 550]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0) && (splverifierCounter == 0)) && (1 <= waterLevel)) || (((2 <= waterLevel) && (splverifierCounter == 0)) && !((0 == systemActive)))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-19 07:59:49,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a036b7f6-0932-434a-82bd-1a23a930af4e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE