./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 b1a2a4f6154f8b607411cb85c1a9c20d409d0ca16407a9f3bb2fc8f7ede01236 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:50:09,480 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:50:09,630 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:50:09,640 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:50:09,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:50:09,684 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:50:09,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:50:09,685 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:50:09,686 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:50:09,691 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:50:09,693 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:50:09,693 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:50:09,694 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:50:09,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:50:09,696 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:50:09,696 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:50:09,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:50:09,697 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:50:09,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:50:09,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:50:09,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:50:09,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:50:09,699 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:50:09,699 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:50:09,700 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:50:09,701 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:50:09,701 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:50:09,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:50:09,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:50:09,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:50:09,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:50:09,704 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:50:09,704 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:50:09,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:50:09,705 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:50:09,705 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:50:09,705 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:50:09,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:50:09,706 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:50:09,706 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_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1a2a4f6154f8b607411cb85c1a9c20d409d0ca16407a9f3bb2fc8f7ede01236 [2023-11-06 22:50:10,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:50:10,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:50:10,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:50:10,194 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:50:10,194 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:50:10,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2023-11-06 22:50:13,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:50:13,800 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:50:13,800 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2023-11-06 22:50:13,817 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP/data/30e79493e/4fcab2b91bb143b38d67233a5d0b66a6/FLAG19bbd46a4 [2023-11-06 22:50:13,835 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP/data/30e79493e/4fcab2b91bb143b38d67233a5d0b66a6 [2023-11-06 22:50:13,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:50:13,840 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:50:13,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:50:13,843 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:50:13,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:50:13,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:50:13" (1/1) ... [2023-11-06 22:50:13,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@98c93d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:13, skipping insertion in model container [2023-11-06 22:50:13,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:50:13" (1/1) ... [2023-11-06 22:50:13,923 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:50:14,244 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_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c[12584,12597] [2023-11-06 22:50:14,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:50:14,319 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:50:14,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-11-06 22:50:14,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [153] [2023-11-06 22:50:14,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [519] [2023-11-06 22:50:14,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [528] [2023-11-06 22:50:14,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [627] [2023-11-06 22:50:14,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [695] [2023-11-06 22:50:14,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [859] [2023-11-06 22:50:14,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [885] [2023-11-06 22:50:14,395 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_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c[12584,12597] [2023-11-06 22:50:14,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:50:14,439 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:50:14,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:14 WrapperNode [2023-11-06 22:50:14,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:50:14,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:50:14,442 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:50:14,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:50:14,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:14" (1/1) ... [2023-11-06 22:50:14,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:14" (1/1) ... [2023-11-06 22:50:14,541 INFO L138 Inliner]: procedures = 53, calls = 94, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 167 [2023-11-06 22:50:14,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:50:14,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:50:14,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:50:14,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:50:14,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:14" (1/1) ... [2023-11-06 22:50:14,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:14" (1/1) ... [2023-11-06 22:50:14,577 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:14" (1/1) ... [2023-11-06 22:50:14,577 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:14" (1/1) ... [2023-11-06 22:50:14,586 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:14" (1/1) ... [2023-11-06 22:50:14,594 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:14" (1/1) ... [2023-11-06 22:50:14,599 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:14" (1/1) ... [2023-11-06 22:50:14,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:14" (1/1) ... [2023-11-06 22:50:14,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:50:14,604 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:50:14,604 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:50:14,605 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:50:14,605 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:14" (1/1) ... [2023-11-06 22:50:14,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:50:14,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:14,651 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:50:14,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:50:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:50:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-06 22:50:14,710 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-06 22:50:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-06 22:50:14,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-06 22:50:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-06 22:50:14,714 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-06 22:50:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-06 22:50:14,714 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-06 22:50:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-06 22:50:14,716 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-06 22:50:14,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:50:14,744 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-06 22:50:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-06 22:50:14,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:50:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:50:14,861 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:50:14,866 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:50:15,261 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:50:15,275 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:50:15,278 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:50:15,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:50:15 BoogieIcfgContainer [2023-11-06 22:50:15,281 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:50:15,284 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:50:15,287 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:50:15,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:50:15,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:50:13" (1/3) ... [2023-11-06 22:50:15,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5222aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:50:15, skipping insertion in model container [2023-11-06 22:50:15,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:14" (2/3) ... [2023-11-06 22:50:15,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5222aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:50:15, skipping insertion in model container [2023-11-06 22:50:15,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:50:15" (3/3) ... [2023-11-06 22:50:15,296 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2023-11-06 22:50:15,316 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:50:15,316 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:50:15,387 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:50:15,395 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=LoopsAndPotentialCycles, 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;@644d67ef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:50:15,396 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:50:15,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 58 states have (on average 1.396551724137931) internal successors, (81), 64 states have internal predecessors, (81), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-06 22:50:15,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-06 22:50:15,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:15,414 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] [2023-11-06 22:50:15,415 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:15,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:15,424 INFO L85 PathProgramCache]: Analyzing trace with hash -206435810, now seen corresponding path program 1 times [2023-11-06 22:50:15,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:15,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529016058] [2023-11-06 22:50:15,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:15,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:15,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:50:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:15,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:15,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:15,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529016058] [2023-11-06 22:50:15,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529016058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:15,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:15,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:50:15,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437958285] [2023-11-06 22:50:15,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:15,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:50:15,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:15,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:50:15,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:50:15,770 INFO L87 Difference]: Start difference. First operand has 75 states, 58 states have (on average 1.396551724137931) internal successors, (81), 64 states have internal predecessors, (81), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2023-11-06 22:50:15,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:15,823 INFO L93 Difference]: Finished difference Result 142 states and 193 transitions. [2023-11-06 22:50:15,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:50:15,825 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2023-11-06 22:50:15,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:15,837 INFO L225 Difference]: With dead ends: 142 [2023-11-06 22:50:15,837 INFO L226 Difference]: Without dead ends: 66 [2023-11-06 22:50:15,842 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 [2023-11-06 22:50:15,847 INFO L413 NwaCegarLoop]: 93 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, 93 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 [2023-11-06 22:50:15,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:15,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-06 22:50:15,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-06 22:50:15,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 56 states have internal predecessors, (67), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-06 22:50:15,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2023-11-06 22:50:15,914 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 23 [2023-11-06 22:50:15,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:15,915 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2023-11-06 22:50:15,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2023-11-06 22:50:15,917 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2023-11-06 22:50:15,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-06 22:50:15,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:15,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:50:15,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:50:15,923 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:15,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:15,924 INFO L85 PathProgramCache]: Analyzing trace with hash 221541849, now seen corresponding path program 1 times [2023-11-06 22:50:15,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:15,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999552304] [2023-11-06 22:50:15,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:15,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:16,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:50:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:16,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:16,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:16,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999552304] [2023-11-06 22:50:16,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999552304] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:16,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:16,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:50:16,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887566011] [2023-11-06 22:50:16,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:16,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:50:16,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:16,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:50:16,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:50:16,134 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-11-06 22:50:16,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:16,161 INFO L93 Difference]: Finished difference Result 97 states and 123 transitions. [2023-11-06 22:50:16,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:50:16,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 24 [2023-11-06 22:50:16,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:16,164 INFO L225 Difference]: With dead ends: 97 [2023-11-06 22:50:16,164 INFO L226 Difference]: Without dead ends: 57 [2023-11-06 22:50:16,165 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 [2023-11-06 22:50:16,167 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 13 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 125 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 [2023-11-06 22:50:16,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 125 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:16,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-06 22:50:16,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-11-06 22:50:16,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 50 states have internal predecessors, (60), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 22:50:16,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2023-11-06 22:50:16,178 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 24 [2023-11-06 22:50:16,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:16,179 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2023-11-06 22:50:16,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-11-06 22:50:16,179 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2023-11-06 22:50:16,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-06 22:50:16,181 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:16,181 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] [2023-11-06 22:50:16,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:50:16,181 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:16,182 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:16,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1994310983, now seen corresponding path program 1 times [2023-11-06 22:50:16,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:16,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366678464] [2023-11-06 22:50:16,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:16,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:16,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:50:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:16,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:16,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:16,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366678464] [2023-11-06 22:50:16,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366678464] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:16,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:16,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:50:16,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378011640] [2023-11-06 22:50:16,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:16,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:50:16,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:16,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:50:16,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:50:16,392 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2023-11-06 22:50:16,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:16,502 INFO L93 Difference]: Finished difference Result 107 states and 138 transitions. [2023-11-06 22:50:16,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:50:16,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 29 [2023-11-06 22:50:16,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:16,504 INFO L225 Difference]: With dead ends: 107 [2023-11-06 22:50:16,505 INFO L226 Difference]: Without dead ends: 57 [2023-11-06 22:50:16,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:50:16,507 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 97 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:16,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 163 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:16,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-06 22:50:16,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-11-06 22:50:16,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 50 states have internal predecessors, (59), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 22:50:16,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2023-11-06 22:50:16,520 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 71 transitions. Word has length 29 [2023-11-06 22:50:16,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:16,521 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 71 transitions. [2023-11-06 22:50:16,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2023-11-06 22:50:16,521 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 71 transitions. [2023-11-06 22:50:16,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-06 22:50:16,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:16,523 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] [2023-11-06 22:50:16,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:50:16,524 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:16,524 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:16,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1633945012, now seen corresponding path program 1 times [2023-11-06 22:50:16,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:16,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753200495] [2023-11-06 22:50:16,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:16,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:50:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:16,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 22:50:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:16,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:16,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:16,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753200495] [2023-11-06 22:50:16,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753200495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:16,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:16,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:50:16,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219379387] [2023-11-06 22:50:16,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:16,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:50:16,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:16,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:50:16,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:50:16,670 INFO L87 Difference]: Start difference. First operand 57 states and 71 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:50:16,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:16,704 INFO L93 Difference]: Finished difference Result 146 states and 186 transitions. [2023-11-06 22:50:16,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:50:16,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2023-11-06 22:50:16,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:16,707 INFO L225 Difference]: With dead ends: 146 [2023-11-06 22:50:16,707 INFO L226 Difference]: Without dead ends: 96 [2023-11-06 22:50:16,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:50:16,710 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 44 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:16,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 132 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:16,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-06 22:50:16,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2023-11-06 22:50:16,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 73 states have (on average 1.3013698630136987) internal successors, (95), 79 states have internal predecessors, (95), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-06 22:50:16,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 117 transitions. [2023-11-06 22:50:16,736 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 117 transitions. Word has length 34 [2023-11-06 22:50:16,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:16,736 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 117 transitions. [2023-11-06 22:50:16,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:50:16,737 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 117 transitions. [2023-11-06 22:50:16,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-06 22:50:16,739 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:16,739 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] [2023-11-06 22:50:16,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:50:16,740 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:16,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:16,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1413607109, now seen corresponding path program 1 times [2023-11-06 22:50:16,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:16,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187142765] [2023-11-06 22:50:16,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:16,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:16,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:50:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:16,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:16,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:16,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187142765] [2023-11-06 22:50:16,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187142765] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:16,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:16,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:50:16,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209820455] [2023-11-06 22:50:16,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:16,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:50:16,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:16,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:50:16,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:50:16,857 INFO L87 Difference]: Start difference. First operand 94 states and 117 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:50:16,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:16,916 INFO L93 Difference]: Finished difference Result 197 states and 250 transitions. [2023-11-06 22:50:16,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:50:16,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 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 38 [2023-11-06 22:50:16,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:16,919 INFO L225 Difference]: With dead ends: 197 [2023-11-06 22:50:16,919 INFO L226 Difference]: Without dead ends: 110 [2023-11-06 22:50:16,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:50:16,922 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 15 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:16,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 313 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:16,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-06 22:50:16,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 97. [2023-11-06 22:50:16,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 76 states have (on average 1.2894736842105263) internal successors, (98), 82 states have internal predecessors, (98), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-06 22:50:16,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 120 transitions. [2023-11-06 22:50:16,944 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 120 transitions. Word has length 38 [2023-11-06 22:50:16,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:16,944 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 120 transitions. [2023-11-06 22:50:16,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:50:16,945 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 120 transitions. [2023-11-06 22:50:16,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-06 22:50:16,946 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:16,946 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] [2023-11-06 22:50:16,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:50:16,947 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:16,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:16,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1860291833, now seen corresponding path program 1 times [2023-11-06 22:50:16,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:16,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211366847] [2023-11-06 22:50:16,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:16,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:17,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:50:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:17,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:17,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:17,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211366847] [2023-11-06 22:50:17,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211366847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:17,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:17,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:50:17,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669281211] [2023-11-06 22:50:17,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:17,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:50:17,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:17,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:50:17,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:50:17,041 INFO L87 Difference]: Start difference. First operand 97 states and 120 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:50:17,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:17,088 INFO L93 Difference]: Finished difference Result 205 states and 260 transitions. [2023-11-06 22:50:17,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:50:17,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (2), 1 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 38 [2023-11-06 22:50:17,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:17,094 INFO L225 Difference]: With dead ends: 205 [2023-11-06 22:50:17,094 INFO L226 Difference]: Without dead ends: 115 [2023-11-06 22:50:17,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:50:17,107 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 18 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:17,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 234 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:17,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-06 22:50:17,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 99. [2023-11-06 22:50:17,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 78 states have (on average 1.2820512820512822) internal successors, (100), 84 states have internal predecessors, (100), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-06 22:50:17,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 122 transitions. [2023-11-06 22:50:17,136 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 122 transitions. Word has length 38 [2023-11-06 22:50:17,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:17,143 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 122 transitions. [2023-11-06 22:50:17,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:50:17,144 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 122 transitions. [2023-11-06 22:50:17,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-06 22:50:17,148 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:17,148 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] [2023-11-06 22:50:17,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:50:17,149 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:17,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:17,149 INFO L85 PathProgramCache]: Analyzing trace with hash -133852873, now seen corresponding path program 1 times [2023-11-06 22:50:17,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:17,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647756083] [2023-11-06 22:50:17,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:17,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:17,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:50:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:17,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:17,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:17,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647756083] [2023-11-06 22:50:17,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647756083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:17,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:17,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:50:17,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459086824] [2023-11-06 22:50:17,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:17,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:50:17,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:17,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:50:17,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:50:17,245 INFO L87 Difference]: Start difference. First operand 99 states and 122 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2023-11-06 22:50:17,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:17,275 INFO L93 Difference]: Finished difference Result 235 states and 293 transitions. [2023-11-06 22:50:17,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:50:17,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 38 [2023-11-06 22:50:17,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:17,282 INFO L225 Difference]: With dead ends: 235 [2023-11-06 22:50:17,282 INFO L226 Difference]: Without dead ends: 143 [2023-11-06 22:50:17,282 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 [2023-11-06 22:50:17,283 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 36 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:17,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 127 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:17,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-06 22:50:17,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2023-11-06 22:50:17,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 111 states have (on average 1.2612612612612613) internal successors, (140), 118 states have internal predecessors, (140), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-06 22:50:17,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 172 transitions. [2023-11-06 22:50:17,330 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 172 transitions. Word has length 38 [2023-11-06 22:50:17,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:17,330 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 172 transitions. [2023-11-06 22:50:17,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2023-11-06 22:50:17,331 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 172 transitions. [2023-11-06 22:50:17,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-06 22:50:17,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:17,338 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] [2023-11-06 22:50:17,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:50:17,339 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:17,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:17,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1971526852, now seen corresponding path program 1 times [2023-11-06 22:50:17,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:17,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489493957] [2023-11-06 22:50:17,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:17,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:17,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:50:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:17,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-06 22:50:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:17,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:17,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:17,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489493957] [2023-11-06 22:50:17,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489493957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:17,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:17,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:50:17,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129019436] [2023-11-06 22:50:17,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:17,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:50:17,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:17,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:50:17,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:50:17,527 INFO L87 Difference]: Start difference. First operand 141 states and 172 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:50:17,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:17,602 INFO L93 Difference]: Finished difference Result 150 states and 181 transitions. [2023-11-06 22:50:17,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:50:17,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 40 [2023-11-06 22:50:17,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:17,609 INFO L225 Difference]: With dead ends: 150 [2023-11-06 22:50:17,609 INFO L226 Difference]: Without dead ends: 148 [2023-11-06 22:50:17,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:50:17,612 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 35 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:17,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 255 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:17,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-06 22:50:17,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 141. [2023-11-06 22:50:17,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 111 states have (on average 1.2432432432432432) internal successors, (138), 118 states have internal predecessors, (138), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-06 22:50:17,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 170 transitions. [2023-11-06 22:50:17,651 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 170 transitions. Word has length 40 [2023-11-06 22:50:17,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:17,653 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 170 transitions. [2023-11-06 22:50:17,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:50:17,655 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 170 transitions. [2023-11-06 22:50:17,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-06 22:50:17,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:17,661 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] [2023-11-06 22:50:17,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:50:17,661 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:17,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:17,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1781733859, now seen corresponding path program 1 times [2023-11-06 22:50:17,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:17,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346890976] [2023-11-06 22:50:17,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:17,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:17,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-06 22:50:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:17,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-06 22:50:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:17,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:17,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:17,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346890976] [2023-11-06 22:50:17,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346890976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:17,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:17,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:50:17,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559161971] [2023-11-06 22:50:17,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:17,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:50:17,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:17,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:50:17,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:50:17,828 INFO L87 Difference]: Start difference. First operand 141 states and 170 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:50:18,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:18,153 INFO L93 Difference]: Finished difference Result 486 states and 604 transitions. [2023-11-06 22:50:18,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:50:18,155 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2023-11-06 22:50:18,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:18,162 INFO L225 Difference]: With dead ends: 486 [2023-11-06 22:50:18,162 INFO L226 Difference]: Without dead ends: 352 [2023-11-06 22:50:18,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:50:18,166 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 107 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:18,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 300 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:50:18,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-11-06 22:50:18,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 341. [2023-11-06 22:50:18,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 268 states have (on average 1.2164179104477613) internal successors, (326), 289 states have internal predecessors, (326), 38 states have call successors, (38), 30 states have call predecessors, (38), 34 states have return successors, (51), 36 states have call predecessors, (51), 38 states have call successors, (51) [2023-11-06 22:50:18,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 415 transitions. [2023-11-06 22:50:18,231 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 415 transitions. Word has length 42 [2023-11-06 22:50:18,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:18,232 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 415 transitions. [2023-11-06 22:50:18,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:50:18,232 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 415 transitions. [2023-11-06 22:50:18,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-06 22:50:18,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:18,234 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] [2023-11-06 22:50:18,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:50:18,235 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:18,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:18,235 INFO L85 PathProgramCache]: Analyzing trace with hash -2005773631, now seen corresponding path program 1 times [2023-11-06 22:50:18,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:18,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34226437] [2023-11-06 22:50:18,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:18,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:50:18,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:50:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:50:18,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:50:18,316 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:50:18,317 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:50:18,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:50:18,322 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:50:18,326 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:50:18,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:50:18 BoogieIcfgContainer [2023-11-06 22:50:18,409 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:50:18,410 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:50:18,410 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:50:18,410 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:50:18,411 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:50:15" (3/4) ... [2023-11-06 22:50:18,412 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-06 22:50:18,489 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:50:18,489 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:50:18,490 INFO L158 Benchmark]: Toolchain (without parser) took 4649.56ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 117.8MB in the beginning and 71.8MB in the end (delta: 46.0MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2023-11-06 22:50:18,490 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 111.1MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:50:18,490 INFO L158 Benchmark]: CACSL2BoogieTranslator took 598.76ms. Allocated memory is still 155.2MB. Free memory was 117.4MB in the beginning and 98.8MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 22:50:18,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.30ms. Allocated memory is still 155.2MB. Free memory was 98.8MB in the beginning and 96.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:50:18,491 INFO L158 Benchmark]: Boogie Preprocessor took 60.89ms. Allocated memory is still 155.2MB. Free memory was 96.4MB in the beginning and 95.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:50:18,491 INFO L158 Benchmark]: RCFGBuilder took 677.01ms. Allocated memory is still 155.2MB. Free memory was 95.1MB in the beginning and 113.1MB in the end (delta: -18.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:50:18,492 INFO L158 Benchmark]: TraceAbstraction took 3125.92ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 112.3MB in the beginning and 74.9MB in the end (delta: 37.4MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2023-11-06 22:50:18,492 INFO L158 Benchmark]: Witness Printer took 79.03ms. Allocated memory is still 186.6MB. Free memory was 74.9MB in the beginning and 71.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:50:18,494 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 111.1MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 598.76ms. Allocated memory is still 155.2MB. Free memory was 117.4MB in the beginning and 98.8MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.30ms. Allocated memory is still 155.2MB. Free memory was 98.8MB in the beginning and 96.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.89ms. Allocated memory is still 155.2MB. Free memory was 96.4MB in the beginning and 95.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 677.01ms. Allocated memory is still 155.2MB. Free memory was 95.1MB in the beginning and 113.1MB in the end (delta: -18.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3125.92ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 112.3MB in the beginning and 74.9MB in the end (delta: 37.4MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. * Witness Printer took 79.03ms. Allocated memory is still 186.6MB. Free memory was 74.9MB in the beginning and 71.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [153] - GenericResultAtLocation [Line: 519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [519] - GenericResultAtLocation [Line: 528]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [528] - GenericResultAtLocation [Line: 627]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [627] - GenericResultAtLocation [Line: 695]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [695] - GenericResultAtLocation [Line: 859]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [859] - GenericResultAtLocation [Line: 885]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [885] * 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: 524]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L534] int waterLevel = 1; [L535] int methaneLevelCritical = 0; [L699] int pumpRunning = 0; [L700] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L912] int retValue_acc ; [L915] retValue_acc = 1 [L916] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L630] int splverifierCounter ; [L631] int tmp ; [L632] int tmp___0 ; [L633] int tmp___1 ; [L634] int tmp___2 ; [L637] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L639] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L641] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L647] tmp = __VERIFIER_nondet_int() [L649] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L651] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L552] COND TRUE waterLevel < 2 [L553] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L651] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L657] tmp___0 = __VERIFIER_nondet_int() [L659] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L661] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L564] COND FALSE !(\read(methaneLevelCritical)) [L567] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L661] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L667] tmp___2 = __VERIFIER_nondet_int() [L669] COND TRUE \read(tmp___2) [L671] CALL startSystem() [L855] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L671] RET startSystem() [L684] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L707] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L714] COND TRUE \read(systemActive) [L716] CALL processEnvironment() [L736] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L739] COND TRUE ! pumpRunning [L741] CALL, EXPR isHighWaterLevel() [L833] int retValue_acc ; [L834] int tmp ; [L835] int tmp___0 ; [L839] CALL, EXPR isHighWaterSensorDry() [L614] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L617] COND FALSE !(waterLevel < 2) [L621] retValue_acc = 0 [L622] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L839] RET, EXPR isHighWaterSensorDry() [L839] tmp = isHighWaterSensorDry() [L841] COND FALSE !(\read(tmp)) [L844] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L846] retValue_acc = tmp___0 [L847] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L741] RET, EXPR isHighWaterLevel() [L741] tmp = isHighWaterLevel() [L743] COND TRUE \read(tmp) [L745] CALL activatePump() [L764] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L745] RET activatePump() [L716] RET processEnvironment() [L722] CALL __utac_acc__Specification1_spec__1() [L861] int tmp ; [L862] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L866] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L573] int retValue_acc ; [L576] retValue_acc = methaneLevelCritical [L577] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L866] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L866] tmp = isMethaneLevelCritical() [L868] COND TRUE \read(tmp) [L870] CALL, EXPR isPumpRunning() [L788] int retValue_acc ; [L791] retValue_acc = pumpRunning [L792] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L870] RET, EXPR isPumpRunning() [L870] tmp___0 = isPumpRunning() [L872] COND TRUE \read(tmp___0) [L874] CALL __automaton_fail() [L524] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 379 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 365 mSDsluCounter, 1742 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1065 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 194 IncrementalHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 677 mSDtfsCounter, 194 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=341occurred in iteration=9, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 51 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 352 NumberOfCodeBlocks, 352 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 297 ConstructedInterpolants, 0 QuantifiedInterpolants, 541 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! [2023-11-06 22:50:18,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ad9f63-b8fc-4791-bdb5-5a1c717ff9da/bin/uautomizer-verify-WvqO1wxjHP/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