./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product57.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_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/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_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/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_d129e39d-953c-46ff-af74-2a20d1629c26/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 909de5fe3a7d5a638d67615e2b4d48b563eefeab07033d1b2a29843c731be596 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:37:12,584 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:37:12,667 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:37:12,674 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:37:12,675 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:37:12,704 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:37:12,705 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:37:12,706 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:37:12,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:37:12,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:37:12,708 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:37:12,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:37:12,710 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:37:12,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:37:12,711 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:37:12,712 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:37:12,712 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:37:12,713 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:37:12,713 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:37:12,714 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:37:12,715 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:37:12,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:37:12,716 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:37:12,716 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:37:12,717 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:37:12,717 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:37:12,718 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:37:12,718 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:37:12,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:12,720 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:37:12,720 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:37:12,721 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:37:12,721 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:37:12,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:37:12,722 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:37:12,722 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:37:12,723 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:37:12,723 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:37:12,724 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:37:12,724 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_d129e39d-953c-46ff-af74-2a20d1629c26/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 909de5fe3a7d5a638d67615e2b4d48b563eefeab07033d1b2a29843c731be596 [2023-11-19 07:37:12,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:37:13,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:37:13,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:37:13,021 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:37:13,022 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:37:13,023 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c [2023-11-19 07:37:16,350 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:37:16,824 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:37:16,833 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c [2023-11-19 07:37:16,851 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/data/6a5fcbe65/2e63c5cfcc104d509433c451d9c882b3/FLAG031c79216 [2023-11-19 07:37:16,875 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/data/6a5fcbe65/2e63c5cfcc104d509433c451d9c882b3 [2023-11-19 07:37:16,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:37:16,883 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:37:16,885 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:16,885 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:37:16,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:37:16,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:16" (1/1) ... [2023-11-19 07:37:16,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73adcaf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:16, skipping insertion in model container [2023-11-19 07:37:16,901 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:16" (1/1) ... [2023-11-19 07:37:16,984 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:37:17,369 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_d129e39d-953c-46ff-af74-2a20d1629c26/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c[19040,19053] [2023-11-19 07:37:17,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:17,403 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:37:17,415 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-19 07:37:17,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2023-11-19 07:37:17,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [198] [2023-11-19 07:37:17,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [299] [2023-11-19 07:37:17,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [340] [2023-11-19 07:37:17,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [557] [2023-11-19 07:37:17,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [622] [2023-11-19 07:37:17,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [988] [2023-11-19 07:37:17,586 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_d129e39d-953c-46ff-af74-2a20d1629c26/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c[19040,19053] [2023-11-19 07:37:17,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:17,626 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:37:17,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:17 WrapperNode [2023-11-19 07:37:17,627 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:17,628 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:17,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:37:17,629 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:37:17,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:17" (1/1) ... [2023-11-19 07:37:17,674 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:17" (1/1) ... [2023-11-19 07:37:17,722 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 223 [2023-11-19 07:37:17,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:17,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:37:17,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:37:17,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:37:17,737 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:17" (1/1) ... [2023-11-19 07:37:17,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:17" (1/1) ... [2023-11-19 07:37:17,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:17" (1/1) ... [2023-11-19 07:37:17,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:17" (1/1) ... [2023-11-19 07:37:17,749 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:17" (1/1) ... [2023-11-19 07:37:17,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:17" (1/1) ... [2023-11-19 07:37:17,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:17" (1/1) ... [2023-11-19 07:37:17,759 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:17" (1/1) ... [2023-11-19 07:37:17,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:37:17,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:37:17,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:37:17,765 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:37:17,766 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:17" (1/1) ... [2023-11-19 07:37:17,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:17,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:17,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:17,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:37:17,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:37:17,886 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 07:37:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 07:37:17,886 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 07:37:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 07:37:17,886 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 07:37:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 07:37:17,887 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-19 07:37:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-19 07:37:17,887 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:37:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:37:17,888 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 07:37:17,888 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 07:37:17,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:37:17,888 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 07:37:17,888 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 07:37:17,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:37:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:37:17,988 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:37:17,990 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:37:18,341 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:37:18,353 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:37:18,354 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:37:18,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:18 BoogieIcfgContainer [2023-11-19 07:37:18,359 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:37:18,363 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:37:18,363 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:37:18,368 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:37:18,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:16" (1/3) ... [2023-11-19 07:37:18,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e113ad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:18, skipping insertion in model container [2023-11-19 07:37:18,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:17" (2/3) ... [2023-11-19 07:37:18,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e113ad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:18, skipping insertion in model container [2023-11-19 07:37:18,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:18" (3/3) ... [2023-11-19 07:37:18,372 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product57.cil.c [2023-11-19 07:37:18,393 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:37:18,394 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:37:18,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:37:18,460 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;@24499096, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:37:18,460 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:37:18,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 80 states have internal predecessors, (100), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:37:18,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 07:37:18,476 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:18,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:18,478 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:18,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:18,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1702094398, now seen corresponding path program 1 times [2023-11-19 07:37:18,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:18,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229618334] [2023-11-19 07:37:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:18,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:18,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:37:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:18,872 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 07:37:18,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:18,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229618334] [2023-11-19 07:37:18,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229618334] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:18,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:18,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:18,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72978696] [2023-11-19 07:37:18,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:18,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:37:18,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:18,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:37:18,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:37:18,939 INFO L87 Difference]: Start difference. First operand has 93 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 80 states have internal predecessors, (100), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:18,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:18,982 INFO L93 Difference]: Finished difference Result 177 states and 242 transitions. [2023-11-19 07:37:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:37:18,985 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-19 07:37:18,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:18,997 INFO L225 Difference]: With dead ends: 177 [2023-11-19 07:37:18,998 INFO L226 Difference]: Without dead ends: 84 [2023-11-19 07:37:19,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:37:19,008 INFO L413 NwaCegarLoop]: 118 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, 118 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 07:37:19,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:19,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-19 07:37:19,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-19 07:37:19,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 65 states have (on average 1.323076923076923) internal successors, (86), 72 states have internal predecessors, (86), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:37:19,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2023-11-19 07:37:19,070 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 25 [2023-11-19 07:37:19,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:19,070 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2023-11-19 07:37:19,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:19,071 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2023-11-19 07:37:19,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 07:37:19,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:19,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:19,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:37:19,076 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:19,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:19,077 INFO L85 PathProgramCache]: Analyzing trace with hash 2038444326, now seen corresponding path program 1 times [2023-11-19 07:37:19,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:19,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683620903] [2023-11-19 07:37:19,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:19,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:19,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:37:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:19,213 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 07:37:19,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:19,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683620903] [2023-11-19 07:37:19,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683620903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:19,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:19,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:19,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797203669] [2023-11-19 07:37:19,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:19,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:19,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:19,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:19,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:19,219 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:19,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:19,244 INFO L93 Difference]: Finished difference Result 133 states and 173 transitions. [2023-11-19 07:37:19,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:19,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-11-19 07:37:19,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:19,247 INFO L225 Difference]: With dead ends: 133 [2023-11-19 07:37:19,247 INFO L226 Difference]: Without dead ends: 75 [2023-11-19 07:37:19,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:19,251 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 12 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 176 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 07:37:19,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 176 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:19,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-19 07:37:19,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-11-19 07:37:19,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 66 states have internal predecessors, (79), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:37:19,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2023-11-19 07:37:19,267 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 26 [2023-11-19 07:37:19,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:19,268 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2023-11-19 07:37:19,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:19,268 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2023-11-19 07:37:19,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 07:37:19,270 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:19,271 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 07:37:19,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:37:19,271 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:19,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:19,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1677666248, now seen corresponding path program 1 times [2023-11-19 07:37:19,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:19,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151361888] [2023-11-19 07:37:19,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:19,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:19,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:37:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:19,586 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 07:37:19,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:19,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151361888] [2023-11-19 07:37:19,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151361888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:19,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:19,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:37:19,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253035804] [2023-11-19 07:37:19,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:19,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:19,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:19,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:19,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:19,601 INFO L87 Difference]: Start difference. First operand 75 states and 97 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:19,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:19,826 INFO L93 Difference]: Finished difference Result 142 states and 187 transitions. [2023-11-19 07:37:19,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:37:19,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-11-19 07:37:19,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:19,830 INFO L225 Difference]: With dead ends: 142 [2023-11-19 07:37:19,830 INFO L226 Difference]: Without dead ends: 75 [2023-11-19 07:37:19,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 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 07:37:19,834 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 186 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:19,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 206 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:37:19,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-19 07:37:19,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-11-19 07:37:19,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 66 states have internal predecessors, (78), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:37:19,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2023-11-19 07:37:19,852 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 30 [2023-11-19 07:37:19,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:19,853 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2023-11-19 07:37:19,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:37:19,854 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2023-11-19 07:37:19,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 07:37:19,857 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:19,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:19,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:37:19,858 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:19,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:19,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1006789740, now seen corresponding path program 1 times [2023-11-19 07:37:19,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:19,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903498716] [2023-11-19 07:37:19,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:19,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:20,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:37:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:20,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:20,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:37:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:20,117 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 07:37:20,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:20,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903498716] [2023-11-19 07:37:20,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903498716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:20,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:20,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:20,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859831160] [2023-11-19 07:37:20,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:20,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:37:20,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:20,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:37:20,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:37:20,123 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:37:20,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:20,472 INFO L93 Difference]: Finished difference Result 217 states and 279 transitions. [2023-11-19 07:37:20,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:37:20,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2023-11-19 07:37:20,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:20,477 INFO L225 Difference]: With dead ends: 217 [2023-11-19 07:37:20,477 INFO L226 Difference]: Without dead ends: 150 [2023-11-19 07:37:20,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:37:20,482 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 179 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:20,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 287 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:37:20,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-19 07:37:20,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 144. [2023-11-19 07:37:20,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 112 states have (on average 1.2857142857142858) internal successors, (144), 120 states have internal predecessors, (144), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2023-11-19 07:37:20,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 179 transitions. [2023-11-19 07:37:20,521 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 179 transitions. Word has length 40 [2023-11-19 07:37:20,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:20,522 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 179 transitions. [2023-11-19 07:37:20,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:37:20,523 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 179 transitions. [2023-11-19 07:37:20,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 07:37:20,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:20,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:20,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:37:20,526 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:20,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:20,527 INFO L85 PathProgramCache]: Analyzing trace with hash -251696612, now seen corresponding path program 1 times [2023-11-19 07:37:20,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:20,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011080526] [2023-11-19 07:37:20,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:20,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:20,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:37:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:20,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:37:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:20,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:37:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:20,832 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 07:37:20,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:20,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011080526] [2023-11-19 07:37:20,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011080526] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:20,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:20,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:37:20,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303630419] [2023-11-19 07:37:20,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:20,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:20,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:20,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:20,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:20,841 INFO L87 Difference]: Start difference. First operand 144 states and 179 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:37:21,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:21,180 INFO L93 Difference]: Finished difference Result 288 states and 359 transitions. [2023-11-19 07:37:21,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:37:21,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2023-11-19 07:37:21,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:21,183 INFO L225 Difference]: With dead ends: 288 [2023-11-19 07:37:21,184 INFO L226 Difference]: Without dead ends: 152 [2023-11-19 07:37:21,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:37:21,187 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 115 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:21,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 365 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:37:21,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-19 07:37:21,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 142. [2023-11-19 07:37:21,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 110 states have (on average 1.2545454545454546) internal successors, (138), 118 states have internal predecessors, (138), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2023-11-19 07:37:21,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 173 transitions. [2023-11-19 07:37:21,212 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 173 transitions. Word has length 46 [2023-11-19 07:37:21,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:21,212 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 173 transitions. [2023-11-19 07:37:21,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:37:21,213 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 173 transitions. [2023-11-19 07:37:21,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 07:37:21,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:21,216 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:21,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:37:21,216 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:21,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:21,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1277770087, now seen corresponding path program 1 times [2023-11-19 07:37:21,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:21,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428282908] [2023-11-19 07:37:21,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:21,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:21,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:37:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:21,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:37:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:21,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:37:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:21,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:37:21,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:21,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428282908] [2023-11-19 07:37:21,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428282908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:21,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:21,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:37:21,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007828488] [2023-11-19 07:37:21,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:21,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:21,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:21,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:21,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:21,363 INFO L87 Difference]: Start difference. First operand 142 states and 173 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:37:21,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:21,537 INFO L93 Difference]: Finished difference Result 286 states and 355 transitions. [2023-11-19 07:37:21,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:37:21,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 52 [2023-11-19 07:37:21,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:21,540 INFO L225 Difference]: With dead ends: 286 [2023-11-19 07:37:21,541 INFO L226 Difference]: Without dead ends: 152 [2023-11-19 07:37:21,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:37:21,546 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 63 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:21,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 363 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:37:21,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-19 07:37:21,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 145. [2023-11-19 07:37:21,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 113 states have (on average 1.247787610619469) internal successors, (141), 121 states have internal predecessors, (141), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2023-11-19 07:37:21,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 176 transitions. [2023-11-19 07:37:21,584 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 176 transitions. Word has length 52 [2023-11-19 07:37:21,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:21,585 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 176 transitions. [2023-11-19 07:37:21,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:37:21,586 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 176 transitions. [2023-11-19 07:37:21,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 07:37:21,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:21,591 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:21,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:37:21,593 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:21,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:21,593 INFO L85 PathProgramCache]: Analyzing trace with hash 645457947, now seen corresponding path program 1 times [2023-11-19 07:37:21,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:21,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511029874] [2023-11-19 07:37:21,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:21,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:21,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:37:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:21,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:37:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:21,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:37:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:21,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:37:21,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:21,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511029874] [2023-11-19 07:37:21,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511029874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:21,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:21,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:21,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797475141] [2023-11-19 07:37:21,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:21,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:37:21,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:21,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:37:21,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:37:21,764 INFO L87 Difference]: Start difference. First operand 145 states and 176 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:37:21,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:21,890 INFO L93 Difference]: Finished difference Result 292 states and 361 transitions. [2023-11-19 07:37:21,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:37:21,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 52 [2023-11-19 07:37:21,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:21,892 INFO L225 Difference]: With dead ends: 292 [2023-11-19 07:37:21,893 INFO L226 Difference]: Without dead ends: 155 [2023-11-19 07:37:21,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:37:21,899 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 67 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:21,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 283 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:37:21,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-11-19 07:37:21,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 147. [2023-11-19 07:37:21,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 115 states have (on average 1.2434782608695651) internal successors, (143), 123 states have internal predecessors, (143), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2023-11-19 07:37:21,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 178 transitions. [2023-11-19 07:37:21,949 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 178 transitions. Word has length 52 [2023-11-19 07:37:21,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:21,950 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 178 transitions. [2023-11-19 07:37:21,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:37:21,951 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 178 transitions. [2023-11-19 07:37:21,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 07:37:21,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:21,955 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:21,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:37:21,955 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:21,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:21,956 INFO L85 PathProgramCache]: Analyzing trace with hash 2031661341, now seen corresponding path program 1 times [2023-11-19 07:37:21,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:21,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351773569] [2023-11-19 07:37:21,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:21,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:22,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:37:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:22,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:37:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:22,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:37:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:22,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:37:22,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:22,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351773569] [2023-11-19 07:37:22,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351773569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:22,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:22,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:22,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483079247] [2023-11-19 07:37:22,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:22,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:37:22,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:22,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:37:22,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:37:22,074 INFO L87 Difference]: Start difference. First operand 147 states and 178 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:37:22,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:22,280 INFO L93 Difference]: Finished difference Result 400 states and 509 transitions. [2023-11-19 07:37:22,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:37:22,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2023-11-19 07:37:22,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:22,288 INFO L225 Difference]: With dead ends: 400 [2023-11-19 07:37:22,288 INFO L226 Difference]: Without dead ends: 261 [2023-11-19 07:37:22,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:37:22,290 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 189 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:22,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 296 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:37:22,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-11-19 07:37:22,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 259. [2023-11-19 07:37:22,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 199 states have (on average 1.2311557788944723) internal successors, (245), 211 states have internal predecessors, (245), 30 states have call successors, (30), 28 states have call predecessors, (30), 29 states have return successors, (45), 30 states have call predecessors, (45), 30 states have call successors, (45) [2023-11-19 07:37:22,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 320 transitions. [2023-11-19 07:37:22,321 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 320 transitions. Word has length 52 [2023-11-19 07:37:22,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:22,322 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 320 transitions. [2023-11-19 07:37:22,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:37:22,322 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 320 transitions. [2023-11-19 07:37:22,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-19 07:37:22,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:22,324 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:22,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:37:22,324 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:22,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:22,325 INFO L85 PathProgramCache]: Analyzing trace with hash 402144439, now seen corresponding path program 1 times [2023-11-19 07:37:22,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:22,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037942473] [2023-11-19 07:37:22,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:22,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:22,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:37:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:22,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:37:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:22,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:37:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:22,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-19 07:37:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:22,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:37:22,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:22,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037942473] [2023-11-19 07:37:22,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037942473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:22,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:22,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-19 07:37:22,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374629068] [2023-11-19 07:37:22,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:22,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:37:22,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:22,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:37:22,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:37:22,551 INFO L87 Difference]: Start difference. First operand 259 states and 320 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:37:23,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:23,265 INFO L93 Difference]: Finished difference Result 793 states and 1013 transitions. [2023-11-19 07:37:23,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-19 07:37:23,266 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2023-11-19 07:37:23,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:23,271 INFO L225 Difference]: With dead ends: 793 [2023-11-19 07:37:23,271 INFO L226 Difference]: Without dead ends: 542 [2023-11-19 07:37:23,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=720, Unknown=0, NotChecked=0, Total=930 [2023-11-19 07:37:23,274 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 459 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:23,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 484 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:37:23,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2023-11-19 07:37:23,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 531. [2023-11-19 07:37:23,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 405 states have (on average 1.2) internal successors, (486), 433 states have internal predecessors, (486), 64 states have call successors, (64), 54 states have call predecessors, (64), 61 states have return successors, (103), 63 states have call predecessors, (103), 64 states have call successors, (103) [2023-11-19 07:37:23,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 653 transitions. [2023-11-19 07:37:23,342 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 653 transitions. Word has length 56 [2023-11-19 07:37:23,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:23,342 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 653 transitions. [2023-11-19 07:37:23,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:37:23,342 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 653 transitions. [2023-11-19 07:37:23,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 07:37:23,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:23,347 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:23,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:37:23,347 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:23,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:23,348 INFO L85 PathProgramCache]: Analyzing trace with hash -738171045, now seen corresponding path program 1 times [2023-11-19 07:37:23,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:23,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950178122] [2023-11-19 07:37:23,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:23,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:37:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:37:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:37:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:37:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:37:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:37:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-19 07:37:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:37:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,501 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 07:37:23,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:23,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950178122] [2023-11-19 07:37:23,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950178122] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:23,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197412938] [2023-11-19 07:37:23,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:23,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:23,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:23,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:23,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:37:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:23,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:37:23,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:23,772 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:37:23,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:37:23,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197412938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:23,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:37:23,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2023-11-19 07:37:23,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276740899] [2023-11-19 07:37:23,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:23,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:23,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:23,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:23,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:37:23,776 INFO L87 Difference]: Start difference. First operand 531 states and 653 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 07:37:23,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:23,853 INFO L93 Difference]: Finished difference Result 827 states and 1035 transitions. [2023-11-19 07:37:23,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:23,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 98 [2023-11-19 07:37:23,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:23,859 INFO L225 Difference]: With dead ends: 827 [2023-11-19 07:37:23,860 INFO L226 Difference]: Without dead ends: 825 [2023-11-19 07:37:23,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:37:23,861 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 45 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:23,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 179 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:23,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2023-11-19 07:37:23,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 619. [2023-11-19 07:37:23,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 472 states have (on average 1.2161016949152543) internal successors, (574), 506 states have internal predecessors, (574), 74 states have call successors, (74), 62 states have call predecessors, (74), 72 states have return successors, (131), 73 states have call predecessors, (131), 74 states have call successors, (131) [2023-11-19 07:37:23,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 779 transitions. [2023-11-19 07:37:23,951 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 779 transitions. Word has length 98 [2023-11-19 07:37:23,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:23,952 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 779 transitions. [2023-11-19 07:37:23,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 07:37:23,953 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 779 transitions. [2023-11-19 07:37:23,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-19 07:37:23,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:23,966 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:23,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 07:37:24,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:37:24,187 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:24,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:24,188 INFO L85 PathProgramCache]: Analyzing trace with hash 602062054, now seen corresponding path program 1 times [2023-11-19 07:37:24,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:24,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331737616] [2023-11-19 07:37:24,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:24,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:37:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:37:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:37:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:37:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:37:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:37:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 07:37:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:37:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:37:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-19 07:37:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-19 07:37:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,549 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 44 proven. 24 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:37:24,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:24,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331737616] [2023-11-19 07:37:24,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331737616] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:24,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153655520] [2023-11-19 07:37:24,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:24,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:24,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:24,552 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:24,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:37:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:37:24,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:24,819 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 66 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 07:37:24,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:25,137 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 46 proven. 23 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-19 07:37:25,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153655520] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:25,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:25,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 12 [2023-11-19 07:37:25,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985425740] [2023-11-19 07:37:25,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:25,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:37:25,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:25,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:37:25,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:37:25,141 INFO L87 Difference]: Start difference. First operand 619 states and 779 transitions. Second operand has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 9 states have internal predecessors, (136), 6 states have call successors, (29), 10 states have call predecessors, (29), 5 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-19 07:37:25,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:25,974 INFO L93 Difference]: Finished difference Result 1475 states and 1933 transitions. [2023-11-19 07:37:25,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-19 07:37:25,975 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 9 states have internal predecessors, (136), 6 states have call successors, (29), 10 states have call predecessors, (29), 5 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) Word has length 139 [2023-11-19 07:37:25,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:25,983 INFO L225 Difference]: With dead ends: 1475 [2023-11-19 07:37:25,984 INFO L226 Difference]: Without dead ends: 958 [2023-11-19 07:37:25,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 303 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=252, Invalid=504, Unknown=0, NotChecked=0, Total=756 [2023-11-19 07:37:25,988 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 679 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:25,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 188 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:37:25,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2023-11-19 07:37:26,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 882. [2023-11-19 07:37:26,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 670 states have (on average 1.2208955223880598) internal successors, (818), 717 states have internal predecessors, (818), 106 states have call successors, (106), 92 states have call predecessors, (106), 105 states have return successors, (193), 100 states have call predecessors, (193), 106 states have call successors, (193) [2023-11-19 07:37:26,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1117 transitions. [2023-11-19 07:37:26,111 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1117 transitions. Word has length 139 [2023-11-19 07:37:26,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:26,112 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1117 transitions. [2023-11-19 07:37:26,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 9 states have internal predecessors, (136), 6 states have call successors, (29), 10 states have call predecessors, (29), 5 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-19 07:37:26,113 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1117 transitions. [2023-11-19 07:37:26,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-19 07:37:26,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:26,118 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:26,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:26,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 07:37:26,332 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:26,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:26,333 INFO L85 PathProgramCache]: Analyzing trace with hash -784141340, now seen corresponding path program 1 times [2023-11-19 07:37:26,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:26,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526244728] [2023-11-19 07:37:26,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:26,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:37:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:37:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:37:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:37:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:37:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:37:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 07:37:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:37:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:37:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-19 07:37:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-19 07:37:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,766 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 56 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:37:26,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:26,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526244728] [2023-11-19 07:37:26,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526244728] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:26,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91446331] [2023-11-19 07:37:26,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:26,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:26,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:26,769 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:26,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:37:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:37:26,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:27,156 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 79 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:37:27,156 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:27,431 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 57 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-19 07:37:27,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91446331] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:27,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:27,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 20 [2023-11-19 07:37:27,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811277654] [2023-11-19 07:37:27,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:27,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-19 07:37:27,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:27,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-19 07:37:27,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:37:27,435 INFO L87 Difference]: Start difference. First operand 882 states and 1117 transitions. Second operand has 20 states, 20 states have (on average 7.25) internal successors, (145), 17 states have internal predecessors, (145), 6 states have call successors, (30), 10 states have call predecessors, (30), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-11-19 07:37:29,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:29,260 INFO L93 Difference]: Finished difference Result 2395 states and 3183 transitions. [2023-11-19 07:37:29,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-19 07:37:29,261 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.25) internal successors, (145), 17 states have internal predecessors, (145), 6 states have call successors, (30), 10 states have call predecessors, (30), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 139 [2023-11-19 07:37:29,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:29,274 INFO L225 Difference]: With dead ends: 2395 [2023-11-19 07:37:29,274 INFO L226 Difference]: Without dead ends: 1612 [2023-11-19 07:37:29,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 297 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=528, Invalid=1542, Unknown=0, NotChecked=0, Total=2070 [2023-11-19 07:37:29,282 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 733 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 1618 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:29,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 572 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1618 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 07:37:29,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2023-11-19 07:37:29,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1479. [2023-11-19 07:37:29,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1115 states have (on average 1.2044843049327354) internal successors, (1343), 1185 states have internal predecessors, (1343), 182 states have call successors, (182), 163 states have call predecessors, (182), 181 states have return successors, (327), 168 states have call predecessors, (327), 182 states have call successors, (327) [2023-11-19 07:37:29,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 1852 transitions. [2023-11-19 07:37:29,475 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 1852 transitions. Word has length 139 [2023-11-19 07:37:29,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:29,475 INFO L495 AbstractCegarLoop]: Abstraction has 1479 states and 1852 transitions. [2023-11-19 07:37:29,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.25) internal successors, (145), 17 states have internal predecessors, (145), 6 states have call successors, (30), 10 states have call predecessors, (30), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-11-19 07:37:29,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 1852 transitions. [2023-11-19 07:37:29,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-19 07:37:29,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:29,485 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:29,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:29,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-19 07:37:29,699 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:29,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:29,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1824646118, now seen corresponding path program 1 times [2023-11-19 07:37:29,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:29,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534684074] [2023-11-19 07:37:29,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:29,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:37:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:37:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:37:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:37:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:37:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:37:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 07:37:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:37:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:37:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-19 07:37:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-19 07:37:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,902 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-19 07:37:29,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:29,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534684074] [2023-11-19 07:37:29,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534684074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:29,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:29,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:37:29,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79411947] [2023-11-19 07:37:29,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:29,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:37:29,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:29,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:37:29,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:37:29,909 INFO L87 Difference]: Start difference. First operand 1479 states and 1852 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:37:30,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:30,439 INFO L93 Difference]: Finished difference Result 1842 states and 2281 transitions. [2023-11-19 07:37:30,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:37:30,440 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 139 [2023-11-19 07:37:30,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:30,441 INFO L225 Difference]: With dead ends: 1842 [2023-11-19 07:37:30,441 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:37:30,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2023-11-19 07:37:30,448 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 194 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:30,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 161 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:37:30,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:37:30,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:37:30,450 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 07:37:30,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:37:30,451 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2023-11-19 07:37:30,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:30,451 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:37:30,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:37:30,452 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:37:30,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:37:30,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:37:30,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:37:30,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:37:32,827 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 370 376) no Hoare annotation was computed. [2023-11-19 07:37:32,828 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 370 376) the Hoare annotation is: true [2023-11-19 07:37:32,828 INFO L899 garLoopResultBuilder]: For program point L126-1(lines 122 133) no Hoare annotation was computed. [2023-11-19 07:37:32,828 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 122 133) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~pumpRunning~0 0)) (< ~waterLevel~0 1) .cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) .cse1) (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) .cse0 (< ~waterLevel~0 2) .cse1))) [2023-11-19 07:37:32,828 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 122 133) no Hoare annotation was computed. [2023-11-19 07:37:32,828 INFO L899 garLoopResultBuilder]: For program point L547-2(lines 547 551) no Hoare annotation was computed. [2023-11-19 07:37:32,828 INFO L899 garLoopResultBuilder]: For program point L993(line 993) no Hoare annotation was computed. [2023-11-19 07:37:32,829 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDry_returnLabel#1(lines 189 197) no Hoare annotation was computed. [2023-11-19 07:37:32,829 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 346 369) no Hoare annotation was computed. [2023-11-19 07:37:32,829 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 106) no Hoare annotation was computed. [2023-11-19 07:37:32,829 INFO L899 garLoopResultBuilder]: For program point L102-2(lines 98 109) no Hoare annotation was computed. [2023-11-19 07:37:32,829 INFO L899 garLoopResultBuilder]: For program point L350-1(lines 349 368) no Hoare annotation was computed. [2023-11-19 07:37:32,829 INFO L895 garLoopResultBuilder]: At program point L317(line 317) the Hoare annotation is: (let ((.cse8 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse8)) (.cse1 (= ~pumpRunning~0 0)) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse10 (= 1 ~systemActive~0)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse4 (and .cse7 (<= 2 ~waterLevel~0) .cse10 .cse9)) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (not .cse10)) (.cse5 (< |old(~waterLevel~0)| 2)) (.cse6 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 .cse1 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))))) (and (or .cse0 (and .cse1 (= ~methAndRunningLastTime~0 0) (= ~waterLevel~0 1)) .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3) (or .cse4 .cse3 .cse5 .cse6 (not .cse7)) (or .cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse8 .cse9 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)) .cse2 .cse3 .cse5 .cse6))))) [2023-11-19 07:37:32,829 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 420) no Hoare annotation was computed. [2023-11-19 07:37:32,829 INFO L899 garLoopResultBuilder]: For program point L317-1(line 317) no Hoare annotation was computed. [2023-11-19 07:37:32,830 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 425) no Hoare annotation was computed. [2023-11-19 07:37:32,830 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 989 996) no Hoare annotation was computed. [2023-11-19 07:37:32,830 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 346 369) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse5 (< |old(~waterLevel~0)| 2)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0 (= ~waterLevel~0 1)) .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2) (or (and .cse3 .cse0 .cse4) .cse1 .cse2 .cse5) (or .cse2 .cse5 (and .cse3 .cse4 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)) (not (= ~methaneLevelCritical~0 0))))) [2023-11-19 07:37:32,830 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 333) no Hoare annotation was computed. [2023-11-19 07:37:32,830 INFO L895 garLoopResultBuilder]: At program point L418(line 418) the Hoare annotation is: (let ((.cse2 (< |old(~waterLevel~0)| 2)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (< |old(~waterLevel~0)| 1) .cse1))) [2023-11-19 07:37:32,830 INFO L899 garLoopResultBuilder]: For program point deactivatePump_returnLabel#1(lines 455 462) no Hoare annotation was computed. [2023-11-19 07:37:32,830 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 336) no Hoare annotation was computed. [2023-11-19 07:37:32,831 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevel_returnLabel#1(lines 538 556) no Hoare annotation was computed. [2023-11-19 07:37:32,831 INFO L899 garLoopResultBuilder]: For program point L319-1(lines 311 339) no Hoare annotation was computed. [2023-11-19 07:37:32,831 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 346 369) no Hoare annotation was computed. [2023-11-19 07:37:32,831 INFO L899 garLoopResultBuilder]: For program point isPumpRunning_returnLabel#1(lines 474 482) no Hoare annotation was computed. [2023-11-19 07:37:32,831 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 993) no Hoare annotation was computed. [2023-11-19 07:37:32,831 INFO L895 garLoopResultBuilder]: At program point L423(line 423) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |old(~pumpRunning~0)| 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)) (.cse6 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (and .cse2 .cse3 .cse4 .cse5)) (or (not .cse3) (and .cse2 (= ~methAndRunningLastTime~0 0) (= ~waterLevel~0 1)) .cse6 (not (= |old(~waterLevel~0)| 1)) .cse0) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 .cse4 .cse5) .cse6 .cse0 .cse1))) [2023-11-19 07:37:32,831 INFO L899 garLoopResultBuilder]: For program point L423-1(lines 404 428) no Hoare annotation was computed. [2023-11-19 07:37:32,832 INFO L899 garLoopResultBuilder]: For program point L357-1(lines 357 363) no Hoare annotation was computed. [2023-11-19 07:37:32,832 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 330) no Hoare annotation was computed. [2023-11-19 07:37:32,832 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 551) no Hoare annotation was computed. [2023-11-19 07:37:32,832 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 201 230) no Hoare annotation was computed. [2023-11-19 07:37:32,832 INFO L899 garLoopResultBuilder]: For program point L222(line 222) no Hoare annotation was computed. [2023-11-19 07:37:32,832 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 219) no Hoare annotation was computed. [2023-11-19 07:37:32,832 INFO L902 garLoopResultBuilder]: At program point L215-1(lines 215 219) the Hoare annotation is: true [2023-11-19 07:37:32,832 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2023-11-19 07:37:32,832 INFO L902 garLoopResultBuilder]: At program point L211-2(lines 211 225) the Hoare annotation is: true [2023-11-19 07:37:32,832 INFO L902 garLoopResultBuilder]: At program point L207(line 207) the Hoare annotation is: true [2023-11-19 07:37:32,832 INFO L899 garLoopResultBuilder]: For program point L207-1(line 207) no Hoare annotation was computed. [2023-11-19 07:37:32,833 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 201 230) the Hoare annotation is: true [2023-11-19 07:37:32,833 INFO L899 garLoopResultBuilder]: For program point L226(lines 201 230) no Hoare annotation was computed. [2023-11-19 07:37:32,833 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 134 142) the Hoare annotation is: true [2023-11-19 07:37:32,833 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 134 142) no Hoare annotation was computed. [2023-11-19 07:37:32,833 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 134 142) no Hoare annotation was computed. [2023-11-19 07:37:32,833 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 265 275) no Hoare annotation was computed. [2023-11-19 07:37:32,833 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 64 70) no Hoare annotation was computed. [2023-11-19 07:37:32,833 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 276 298) no Hoare annotation was computed. [2023-11-19 07:37:32,833 INFO L895 garLoopResultBuilder]: At program point L614(lines 567 615) the Hoare annotation is: false [2023-11-19 07:37:32,833 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:37:32,833 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:37:32,834 INFO L899 garLoopResultBuilder]: For program point L569(lines 568 613) no Hoare annotation was computed. [2023-11-19 07:37:32,834 INFO L899 garLoopResultBuilder]: For program point L598(lines 598 609) no Hoare annotation was computed. [2023-11-19 07:37:32,838 INFO L895 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (<= 2 ~waterLevel~0)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse1 .cse2 .cse4 .cse5 (= ~waterLevel~0 1)) (and .cse6 .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2023-11-19 07:37:32,838 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 256 262) no Hoare annotation was computed. [2023-11-19 07:37:32,839 INFO L895 garLoopResultBuilder]: At program point L611(lines 568 613) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (<= 2 ~waterLevel~0)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse1 .cse2 .cse4 .cse5 (= ~waterLevel~0 1)) (and .cse6 .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2023-11-19 07:37:32,839 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 584) no Hoare annotation was computed. [2023-11-19 07:37:32,839 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 578 584) no Hoare annotation was computed. [2023-11-19 07:37:32,839 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:37:32,839 INFO L899 garLoopResultBuilder]: For program point L570(lines 570 574) no Hoare annotation was computed. [2023-11-19 07:37:32,839 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:37:32,840 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 71 77) no Hoare annotation was computed. [2023-11-19 07:37:32,840 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 293) no Hoare annotation was computed. [2023-11-19 07:37:32,840 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__1_returnLabel#1(lines 303 310) no Hoare annotation was computed. [2023-11-19 07:37:32,840 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 608) no Hoare annotation was computed. [2023-11-19 07:37:32,841 INFO L899 garLoopResultBuilder]: For program point L286-2(lines 286 293) no Hoare annotation was computed. [2023-11-19 07:37:32,841 INFO L895 garLoopResultBuilder]: At program point L604-2(lines 598 609) the Hoare annotation is: (let ((.cse3 (<= 2 ~waterLevel~0)) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3 .cse4 .cse5) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse4 .cse5 (= ~waterLevel~0 1)))) [2023-11-19 07:37:32,841 INFO L899 garLoopResultBuilder]: For program point L588(lines 588 594) no Hoare annotation was computed. [2023-11-19 07:37:32,841 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 78 86) no Hoare annotation was computed. [2023-11-19 07:37:32,842 INFO L899 garLoopResultBuilder]: For program point L588-1(lines 588 594) no Hoare annotation was computed. [2023-11-19 07:37:32,842 INFO L899 garLoopResultBuilder]: For program point L617(lines 558 621) no Hoare annotation was computed. [2023-11-19 07:37:32,844 INFO L895 garLoopResultBuilder]: At program point L580(line 580) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (<= 2 ~waterLevel~0)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse1 .cse2 .cse4 .cse5 (= ~waterLevel~0 1)) (and .cse6 .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2023-11-19 07:37:32,844 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 399) no Hoare annotation was computed. [2023-11-19 07:37:32,844 INFO L895 garLoopResultBuilder]: At program point L397(line 397) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-11-19 07:37:32,844 INFO L899 garLoopResultBuilder]: For program point L397-1(lines 378 402) no Hoare annotation was computed. [2023-11-19 07:37:32,845 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 378 402) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-11-19 07:37:32,845 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 175 188) no Hoare annotation was computed. [2023-11-19 07:37:32,845 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 519 537) no Hoare annotation was computed. [2023-11-19 07:37:32,845 INFO L899 garLoopResultBuilder]: For program point L445(lines 445 451) no Hoare annotation was computed. [2023-11-19 07:37:32,845 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 378 402) no Hoare annotation was computed. [2023-11-19 07:37:32,845 INFO L899 garLoopResultBuilder]: For program point L445-2(lines 438 454) no Hoare annotation was computed. [2023-11-19 07:37:32,845 INFO L895 garLoopResultBuilder]: At program point L468(line 468) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 2 ~waterLevel~0))) [2023-11-19 07:37:32,846 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 185) no Hoare annotation was computed. [2023-11-19 07:37:32,846 INFO L899 garLoopResultBuilder]: For program point L468-1(line 468) no Hoare annotation was computed. [2023-11-19 07:37:32,846 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 532) no Hoare annotation was computed. [2023-11-19 07:37:32,846 INFO L899 garLoopResultBuilder]: For program point L528-2(lines 528 532) no Hoare annotation was computed. [2023-11-19 07:37:32,846 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarm_returnLabel#1(lines 463 473) no Hoare annotation was computed. [2023-11-19 07:37:32,846 INFO L895 garLoopResultBuilder]: At program point L392(line 392) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 0))) [2023-11-19 07:37:32,847 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__lowWaterSensor_returnLabel#1(lines 429 436) no Hoare annotation was computed. [2023-11-19 07:37:32,847 INFO L899 garLoopResultBuilder]: For program point L386(lines 386 394) no Hoare annotation was computed. [2023-11-19 07:37:32,847 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 110 121) no Hoare annotation was computed. [2023-11-19 07:37:32,847 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 110 121) no Hoare annotation was computed. [2023-11-19 07:37:32,848 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 110 121) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2) (or (< |old(~waterLevel~0)| 1) (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2))) [2023-11-19 07:37:32,852 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:32,854 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:37:32,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:37:32 BoogieIcfgContainer [2023-11-19 07:37:32,874 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:37:32,875 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:37:32,875 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:37:32,875 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:37:32,876 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:18" (3/4) ... [2023-11-19 07:37:32,878 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:37:32,882 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-19 07:37:32,882 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-19 07:37:32,883 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-19 07:37:32,883 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-19 07:37:32,883 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-19 07:37:32,883 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:37:32,883 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-19 07:37:32,898 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-19 07:37:32,899 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 07:37:32,900 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 07:37:32,900 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:37:32,901 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:37:32,929 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (\result == 1)) && (tmp == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\result == 1)) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\result == 1)) && (tmp == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) [2023-11-19 07:37:32,966 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (\result == 1)) && (tmp == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\result == 1)) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\result == 1)) && (tmp == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) [2023-11-19 07:37:33,016 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:37:33,017 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:37:33,017 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:37:33,018 INFO L158 Benchmark]: Toolchain (without parser) took 16134.65ms. Allocated memory was 161.5MB in the beginning and 255.9MB in the end (delta: 94.4MB). Free memory was 126.3MB in the beginning and 196.3MB in the end (delta: -70.0MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2023-11-19 07:37:33,018 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory was 56.4MB in the beginning and 56.2MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:37:33,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 742.29ms. Allocated memory is still 161.5MB. Free memory was 126.3MB in the beginning and 106.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:37:33,019 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.75ms. Allocated memory is still 161.5MB. Free memory was 106.4MB in the beginning and 104.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:37:33,019 INFO L158 Benchmark]: Boogie Preprocessor took 39.61ms. Allocated memory is still 161.5MB. Free memory was 104.3MB in the beginning and 102.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:37:33,020 INFO L158 Benchmark]: RCFGBuilder took 595.52ms. Allocated memory is still 161.5MB. Free memory was 102.7MB in the beginning and 85.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:37:33,020 INFO L158 Benchmark]: TraceAbstraction took 14511.37ms. Allocated memory was 161.5MB in the beginning and 255.9MB in the end (delta: 94.4MB). Free memory was 84.9MB in the beginning and 203.6MB in the end (delta: -118.7MB). Peak memory consumption was 110.8MB. Max. memory is 16.1GB. [2023-11-19 07:37:33,021 INFO L158 Benchmark]: Witness Printer took 142.14ms. Allocated memory is still 255.9MB. Free memory was 203.6MB in the beginning and 196.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:37:33,023 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 109.1MB. Free memory was 56.4MB in the beginning and 56.2MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 742.29ms. Allocated memory is still 161.5MB. Free memory was 126.3MB in the beginning and 106.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.75ms. Allocated memory is still 161.5MB. Free memory was 106.4MB in the beginning and 104.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.61ms. Allocated memory is still 161.5MB. Free memory was 104.3MB in the beginning and 102.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 595.52ms. Allocated memory is still 161.5MB. Free memory was 102.7MB in the beginning and 85.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14511.37ms. Allocated memory was 161.5MB in the beginning and 255.9MB in the end (delta: 94.4MB). Free memory was 84.9MB in the beginning and 203.6MB in the end (delta: -118.7MB). Peak memory consumption was 110.8MB. Max. memory is 16.1GB. * Witness Printer took 142.14ms. Allocated memory is still 255.9MB. Free memory was 203.6MB in the beginning and 196.3MB 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 198]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [198] - GenericResultAtLocation [Line: 299]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [299] - GenericResultAtLocation [Line: 340]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [340] - GenericResultAtLocation [Line: 557]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [557] - GenericResultAtLocation [Line: 622]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [622] - GenericResultAtLocation [Line: 988]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [988] * 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: 993]: 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, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.4s, OverallIterations: 13, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2953 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2921 mSDsluCounter, 3678 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2584 mSDsCounter, 767 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3518 IncrementalHoareTripleChecker+Invalid, 4285 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 767 mSolverCounterUnsat, 1094 mSDtfsCounter, 3518 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 980 GetRequests, 810 SyntacticMatches, 9 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1479occurred in iteration=12, InterpolantAutomatonStates: 142, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 459 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 996 PreInvPairs, 1076 NumberOfFragments, 732 HoareAnnotationTreeSize, 996 FomulaSimplifications, 4176 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 21 FomulaSimplificationsInter, 6704 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1270 NumberOfCodeBlocks, 1270 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1530 ConstructedInterpolants, 0 QuantifiedInterpolants, 3180 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1229 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 643/758 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: 567]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: (((((((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (\result == 1)) && (tmp == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\result == 1)) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\result == 1)) && (tmp == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) RESULT: Ultimate proved your program to be correct! [2023-11-19 07:37:33,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d129e39d-953c-46ff-af74-2a20d1629c26/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE