./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/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_690169e5-285d-4995-8c14-47dd8201fb45/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/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_690169e5-285d-4995-8c14-47dd8201fb45/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 0f0ab174a42b7a796a7aa603adc547f34b3ce1c3e6aa217a93d91e742ec00f62 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:01:35,678 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:01:35,821 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 08:01:35,825 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:01:35,826 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:01:35,887 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:01:35,888 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:01:35,889 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:01:35,890 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:01:35,890 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:01:35,891 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:01:35,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:01:35,893 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:01:35,894 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:01:35,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:01:35,895 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:01:35,896 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:01:35,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:01:35,897 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:01:35,898 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:01:35,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:01:35,899 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:01:35,900 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:01:35,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:01:35,901 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:01:35,902 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:01:35,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:01:35,903 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:01:35,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:01:35,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:01:35,905 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:01:35,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:01:35,906 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:01:35,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:01:35,908 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:01:35,908 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:01:35,909 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:01:35,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:01:35,910 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:01:35,910 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_690169e5-285d-4995-8c14-47dd8201fb45/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f0ab174a42b7a796a7aa603adc547f34b3ce1c3e6aa217a93d91e742ec00f62 [2023-11-19 08:01:36,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:01:36,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:01:36,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:01:36,274 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:01:36,275 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:01:36,276 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2023-11-19 08:01:39,393 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:01:39,808 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:01:39,820 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2023-11-19 08:01:39,840 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/bin/uautomizer-verify-uCwYo4JHxu/data/4e4bbb0ce/ac3e292e112f4d72a9bf2c9a3c2600eb/FLAGd2439546c [2023-11-19 08:01:39,862 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/bin/uautomizer-verify-uCwYo4JHxu/data/4e4bbb0ce/ac3e292e112f4d72a9bf2c9a3c2600eb [2023-11-19 08:01:39,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:01:39,872 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:01:39,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:39,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:01:39,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:01:39,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:39" (1/1) ... [2023-11-19 08:01:39,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486650e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:39, skipping insertion in model container [2023-11-19 08:01:39,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:39" (1/1) ... [2023-11-19 08:01:39,959 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:01:40,242 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c[16202,16215] [2023-11-19 08:01:40,251 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:40,264 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:01:40,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] [2023-11-19 08:01:40,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] [2023-11-19 08:01:40,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [191] [2023-11-19 08:01:40,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [226] [2023-11-19 08:01:40,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [592] [2023-11-19 08:01:40,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [737] [2023-11-19 08:01:40,279 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [804] [2023-11-19 08:01:40,279 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [813] [2023-11-19 08:01:40,414 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_690169e5-285d-4995-8c14-47dd8201fb45/sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c[16202,16215] [2023-11-19 08:01:40,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:40,452 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:01:40,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:40 WrapperNode [2023-11-19 08:01:40,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:40,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:40,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:01:40,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:01:40,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:40" (1/1) ... [2023-11-19 08:01:40,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:40" (1/1) ... [2023-11-19 08:01:40,528 INFO L138 Inliner]: procedures = 51, calls = 93, calls flagged for inlining = 21, calls inlined = 16, statements flattened = 146 [2023-11-19 08:01:40,528 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:40,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:01:40,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:01:40,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:01:40,540 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:40" (1/1) ... [2023-11-19 08:01:40,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:40" (1/1) ... [2023-11-19 08:01:40,543 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:40" (1/1) ... [2023-11-19 08:01:40,543 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:40" (1/1) ... [2023-11-19 08:01:40,557 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:40" (1/1) ... [2023-11-19 08:01:40,573 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:40" (1/1) ... [2023-11-19 08:01:40,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:40" (1/1) ... [2023-11-19 08:01:40,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:40" (1/1) ... [2023-11-19 08:01:40,591 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:01:40,592 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:01:40,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:01:40,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:01:40,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:40" (1/1) ... [2023-11-19 08:01:40,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:01:40,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:40,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:40,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:01:40,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:01:40,701 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 08:01:40,701 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 08:01:40,701 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 08:01:40,703 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 08:01:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-19 08:01:40,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-19 08:01:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 08:01:40,705 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 08:01:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:01:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 08:01:40,705 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 08:01:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:01:40,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:01:40,821 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:01:40,824 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:01:41,131 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:01:41,142 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:01:41,142 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:01:41,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:41 BoogieIcfgContainer [2023-11-19 08:01:41,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:01:41,150 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:01:41,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:01:41,153 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:01:41,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:01:39" (1/3) ... [2023-11-19 08:01:41,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6725f18d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:41, skipping insertion in model container [2023-11-19 08:01:41,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:40" (2/3) ... [2023-11-19 08:01:41,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6725f18d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:41, skipping insertion in model container [2023-11-19 08:01:41,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:41" (3/3) ... [2023-11-19 08:01:41,157 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2023-11-19 08:01:41,177 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:01:41,178 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:01:41,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:01:41,236 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;@4d4e82c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:01:41,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:01:41,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 58 states have internal predecessors, (75), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 08:01:41,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 08:01:41,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:41,255 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 08:01:41,256 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:41,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:41,261 INFO L85 PathProgramCache]: Analyzing trace with hash -756762103, now seen corresponding path program 1 times [2023-11-19 08:01:41,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:41,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192292745] [2023-11-19 08:01:41,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:41,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:41,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 08:01:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:41,499 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 08:01:41,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:41,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192292745] [2023-11-19 08:01:41,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192292745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:41,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:41,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:01:41,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469596049] [2023-11-19 08:01:41,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:41,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:01:41,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:41,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:01:41,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:01:41,564 INFO L87 Difference]: Start difference. First operand has 68 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 58 states have internal predecessors, (75), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) 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 08:01:41,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:41,602 INFO L93 Difference]: Finished difference Result 128 states and 173 transitions. [2023-11-19 08:01:41,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:01:41,605 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 08:01:41,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:41,613 INFO L225 Difference]: With dead ends: 128 [2023-11-19 08:01:41,613 INFO L226 Difference]: Without dead ends: 59 [2023-11-19 08:01:41,617 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 08:01:41,621 INFO L413 NwaCegarLoop]: 83 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, 83 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 08:01:41,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:41,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-19 08:01:41,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-19 08:01:41,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.297872340425532) internal successors, (61), 50 states have internal predecessors, (61), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 08:01:41,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2023-11-19 08:01:41,674 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 25 [2023-11-19 08:01:41,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:41,675 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2023-11-19 08:01:41,675 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 08:01:41,676 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2023-11-19 08:01:41,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 08:01:41,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:41,679 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 08:01:41,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:01:41,680 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:41,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:41,682 INFO L85 PathProgramCache]: Analyzing trace with hash 2085076679, now seen corresponding path program 1 times [2023-11-19 08:01:41,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:41,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869124884] [2023-11-19 08:01:41,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:41,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:41,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 08:01:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:41,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:41,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:41,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869124884] [2023-11-19 08:01:41,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869124884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:41,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:41,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:41,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178085082] [2023-11-19 08:01:41,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:41,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:01:41,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:41,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:41,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:41,906 INFO L87 Difference]: Start difference. First operand 59 states and 74 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 08:01:41,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:41,923 INFO L93 Difference]: Finished difference Result 80 states and 99 transitions. [2023-11-19 08:01:41,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:41,924 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 08:01:41,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:41,926 INFO L225 Difference]: With dead ends: 80 [2023-11-19 08:01:41,926 INFO L226 Difference]: Without dead ends: 50 [2023-11-19 08:01:41,927 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 08:01:41,930 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 17 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 101 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 08:01:41,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 101 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:41,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-19 08:01:41,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-19 08:01:41,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 44 states have internal predecessors, (54), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 08:01:41,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2023-11-19 08:01:41,941 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 26 [2023-11-19 08:01:41,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:41,942 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2023-11-19 08:01:41,942 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 08:01:41,943 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2023-11-19 08:01:41,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 08:01:41,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:41,944 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 08:01:41,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:01:41,945 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:41,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:41,946 INFO L85 PathProgramCache]: Analyzing trace with hash -247086690, now seen corresponding path program 1 times [2023-11-19 08:01:41,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:41,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337100198] [2023-11-19 08:01:41,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:41,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:42,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 08:01:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:42,166 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 08:01:42,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:42,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337100198] [2023-11-19 08:01:42,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337100198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:42,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:42,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 08:01:42,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154092309] [2023-11-19 08:01:42,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:42,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:01:42,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:42,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:01:42,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:01:42,174 INFO L87 Difference]: Start difference. First operand 50 states and 62 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 08:01:42,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:42,325 INFO L93 Difference]: Finished difference Result 176 states and 227 transitions. [2023-11-19 08:01:42,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:01:42,326 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 08:01:42,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:42,330 INFO L225 Difference]: With dead ends: 176 [2023-11-19 08:01:42,330 INFO L226 Difference]: Without dead ends: 133 [2023-11-19 08:01:42,331 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 08:01:42,333 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 168 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:42,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 280 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:01:42,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-19 08:01:42,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 123. [2023-11-19 08:01:42,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 98 states have (on average 1.3571428571428572) internal successors, (133), 105 states have internal predecessors, (133), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2023-11-19 08:01:42,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 158 transitions. [2023-11-19 08:01:42,395 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 158 transitions. Word has length 30 [2023-11-19 08:01:42,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:42,395 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 158 transitions. [2023-11-19 08:01:42,396 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 08:01:42,396 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 158 transitions. [2023-11-19 08:01:42,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 08:01:42,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:42,398 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] [2023-11-19 08:01:42,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:01:42,399 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:42,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:42,400 INFO L85 PathProgramCache]: Analyzing trace with hash -457061233, now seen corresponding path program 1 times [2023-11-19 08:01:42,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:42,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113690449] [2023-11-19 08:01:42,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:42,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:42,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 08:01:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:42,584 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 08:01:42,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:42,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113690449] [2023-11-19 08:01:42,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113690449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:42,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:42,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:01:42,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639687526] [2023-11-19 08:01:42,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:42,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:01:42,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:42,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:01:42,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:42,594 INFO L87 Difference]: Start difference. First operand 123 states and 158 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:42,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:42,718 INFO L93 Difference]: Finished difference Result 347 states and 465 transitions. [2023-11-19 08:01:42,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:01:42,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2023-11-19 08:01:42,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:42,724 INFO L225 Difference]: With dead ends: 347 [2023-11-19 08:01:42,732 INFO L226 Difference]: Without dead ends: 231 [2023-11-19 08:01:42,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:01:42,737 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 33 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:42,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 225 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:01:42,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-11-19 08:01:42,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 222. [2023-11-19 08:01:42,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 176 states have (on average 1.3295454545454546) internal successors, (234), 186 states have internal predecessors, (234), 24 states have call successors, (24), 24 states have call predecessors, (24), 21 states have return successors, (30), 21 states have call predecessors, (30), 24 states have call successors, (30) [2023-11-19 08:01:42,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 288 transitions. [2023-11-19 08:01:42,817 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 288 transitions. Word has length 31 [2023-11-19 08:01:42,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:42,817 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 288 transitions. [2023-11-19 08:01:42,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:42,818 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 288 transitions. [2023-11-19 08:01:42,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 08:01:42,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:42,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:42,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:01:42,821 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:42,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:42,822 INFO L85 PathProgramCache]: Analyzing trace with hash -372054006, now seen corresponding path program 1 times [2023-11-19 08:01:42,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:42,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388459705] [2023-11-19 08:01:42,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:42,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:42,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 08:01:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:42,898 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 08:01:42,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:42,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388459705] [2023-11-19 08:01:42,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388459705] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:42,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:42,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:42,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994519370] [2023-11-19 08:01:42,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:42,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:01:42,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:42,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:42,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:42,901 INFO L87 Difference]: Start difference. First operand 222 states and 288 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:42,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:42,928 INFO L93 Difference]: Finished difference Result 395 states and 519 transitions. [2023-11-19 08:01:42,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:42,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2023-11-19 08:01:42,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:42,933 INFO L225 Difference]: With dead ends: 395 [2023-11-19 08:01:42,933 INFO L226 Difference]: Without dead ends: 211 [2023-11-19 08:01:42,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 08:01:42,936 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:42,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 53 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:42,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-19 08:01:42,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2023-11-19 08:01:42,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 165 states have (on average 1.284848484848485) internal successors, (212), 175 states have internal predecessors, (212), 24 states have call successors, (24), 24 states have call predecessors, (24), 21 states have return successors, (26), 21 states have call predecessors, (26), 24 states have call successors, (26) [2023-11-19 08:01:42,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 262 transitions. [2023-11-19 08:01:42,992 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 262 transitions. Word has length 33 [2023-11-19 08:01:42,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:42,992 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 262 transitions. [2023-11-19 08:01:42,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:42,992 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 262 transitions. [2023-11-19 08:01:42,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 08:01:42,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:42,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:42,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:01:42,995 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:43,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:43,003 INFO L85 PathProgramCache]: Analyzing trace with hash -531030615, now seen corresponding path program 1 times [2023-11-19 08:01:43,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:43,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083156186] [2023-11-19 08:01:43,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:43,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:43,036 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:43,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:01:43,105 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:01:43,107 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 08:01:43,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:01:43,118 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-19 08:01:43,122 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:01:43,162 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated [2023-11-19 08:01:43,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:01:43 BoogieIcfgContainer [2023-11-19 08:01:43,177 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:01:43,177 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:01:43,177 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:01:43,178 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:01:43,178 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:41" (3/4) ... [2023-11-19 08:01:43,179 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 08:01:43,202 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated [2023-11-19 08:01:43,253 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:01:43,253 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:01:43,254 INFO L158 Benchmark]: Toolchain (without parser) took 3382.58ms. Allocated memory is still 180.4MB. Free memory was 147.7MB in the beginning and 94.3MB in the end (delta: 53.4MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2023-11-19 08:01:43,254 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory was 92.0MB in the beginning and 91.9MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:01:43,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.78ms. Allocated memory is still 180.4MB. Free memory was 146.9MB in the beginning and 147.2MB in the end (delta: -276.0kB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 08:01:43,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.60ms. Allocated memory is still 180.4MB. Free memory was 147.2MB in the beginning and 145.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:01:43,256 INFO L158 Benchmark]: Boogie Preprocessor took 62.09ms. Allocated memory is still 180.4MB. Free memory was 145.1MB in the beginning and 143.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:01:43,256 INFO L158 Benchmark]: RCFGBuilder took 554.06ms. Allocated memory is still 180.4MB. Free memory was 143.2MB in the beginning and 128.6MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 08:01:43,257 INFO L158 Benchmark]: TraceAbstraction took 2027.12ms. Allocated memory is still 180.4MB. Free memory was 128.3MB in the beginning and 97.4MB in the end (delta: 30.9MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2023-11-19 08:01:43,257 INFO L158 Benchmark]: Witness Printer took 76.12ms. Allocated memory is still 180.4MB. Free memory was 97.4MB in the beginning and 94.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:01:43,259 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory was 92.0MB in the beginning and 91.9MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 577.78ms. Allocated memory is still 180.4MB. Free memory was 146.9MB in the beginning and 147.2MB in the end (delta: -276.0kB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.60ms. Allocated memory is still 180.4MB. Free memory was 147.2MB in the beginning and 145.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.09ms. Allocated memory is still 180.4MB. Free memory was 145.1MB in the beginning and 143.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 554.06ms. Allocated memory is still 180.4MB. Free memory was 143.2MB in the beginning and 128.6MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2027.12ms. Allocated memory is still 180.4MB. Free memory was 128.3MB in the beginning and 97.4MB in the end (delta: 30.9MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * Witness Printer took 76.12ms. Allocated memory is still 180.4MB. Free memory was 97.4MB in the beginning and 94.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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,"Specification3_spec.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] - GenericResultAtLocation [Line: 191]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [191] - GenericResultAtLocation [Line: 226]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [226] - GenericResultAtLocation [Line: 592]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [592] - GenericResultAtLocation [Line: 737]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [737] - GenericResultAtLocation [Line: 804]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [804] - GenericResultAtLocation [Line: 813]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [813] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 809]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L88] int cleanupTimeShifts = 4; [L396] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L814] int waterLevel = 1; [L815] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L169] int retValue_acc ; [L170] int tmp ; [L174] FCALL select_helpers() [L175] FCALL select_features() [L176] CALL, EXPR valid_product() [L218] int retValue_acc ; [L221] retValue_acc = 1 [L222] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L176] RET, EXPR valid_product() [L176] tmp = valid_product() [L178] COND TRUE \read(tmp) [L180] FCALL setup() [L181] CALL runTest() [L160] CALL test() [L739] int splverifierCounter ; [L740] int tmp ; [L741] int tmp___0 ; [L742] int tmp___1 ; [L743] int tmp___2 ; [L746] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L748] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L750] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L756] tmp = __VERIFIER_nondet_int() [L758] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L760] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] COND TRUE waterLevel < 2 [L833] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L760] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L766] tmp___0 = __VERIFIER_nondet_int() [L768] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L776] tmp___2 = __VERIFIER_nondet_int() [L778] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L793] CALL timeShift() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L605] COND FALSE !(\read(pumpRunning)) VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] COND TRUE \read(systemActive) [L614] FCALL processEnvironment() [L620] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] CALL, EXPR isMethaneLevelCritical() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [\old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L61] RET, EXPR isMethaneLevelCritical() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [\old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND TRUE tmp___0 == 2 [L71] CALL, EXPR isPumpRunning() [L678] int retValue_acc ; [L681] retValue_acc = pumpRunning [L682] return (retValue_acc); VAL [\old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L71] RET, EXPR isPumpRunning() [L71] tmp___1 = isPumpRunning() [L73] COND FALSE !(\read(tmp___1)) [L77] CALL __automaton_fail() [L809] reach_error() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 261 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 258 mSDsluCounter, 742 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 429 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 313 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-19 08:01:43,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_690169e5-285d-4995-8c14-47dd8201fb45/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE