./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8729c68adf95fe52029d1e2fee3adcb5035ca5756724ed2fc749f4c6dd51b810 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:09:29,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:09:29,460 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:09:29,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:09:29,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:09:29,508 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:09:29,508 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:09:29,509 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:09:29,509 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:09:29,510 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:09:29,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:09:29,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:09:29,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:09:29,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:09:29,516 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:09:29,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:09:29,517 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:09:29,517 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:09:29,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:09:29,518 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:09:29,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:09:29,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:09:29,523 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:09:29,523 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:09:29,523 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:09:29,524 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:09:29,524 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:09:29,524 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:09:29,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:09:29,525 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:09:29,525 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:09:29,525 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:09:29,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:09:29,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:09:29,526 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:09:29,526 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:09:29,527 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:09:29,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:09:29,527 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:09:29,527 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:09:29,527 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:09:29,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:09:29,528 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_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8729c68adf95fe52029d1e2fee3adcb5035ca5756724ed2fc749f4c6dd51b810 [2024-10-31 22:09:29,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:09:29,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:09:29,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:09:29,888 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:09:29,889 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:09:29,890 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c Unable to find full path for "g++" [2024-10-31 22:09:31,836 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:09:32,100 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:09:32,101 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2024-10-31 22:09:32,116 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU/data/524f54c32/f1ec21b0f48f4ce99a777f3d29364aea/FLAG73d6b5a26 [2024-10-31 22:09:32,448 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU/data/524f54c32/f1ec21b0f48f4ce99a777f3d29364aea [2024-10-31 22:09:32,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:09:32,459 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:09:32,461 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:32,461 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:09:32,472 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:09:32,477 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:32" (1/1) ... [2024-10-31 22:09:32,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21eae412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:32, skipping insertion in model container [2024-10-31 22:09:32,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:32" (1/1) ... [2024-10-31 22:09:32,555 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:09:32,838 WARN L251 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_517596a6-ad5d-429f-92e4-48fc8cdde84e/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c[5608,5621] [2024-10-31 22:09:32,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:32,947 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:09:32,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-10-31 22:09:32,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2024-10-31 22:09:32,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [315] [2024-10-31 22:09:32,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [351] [2024-10-31 22:09:32,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [360] [2024-10-31 22:09:32,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [398] [2024-10-31 22:09:32,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [764] [2024-10-31 22:09:32,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [853] [2024-10-31 22:09:32,978 WARN L251 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_517596a6-ad5d-429f-92e4-48fc8cdde84e/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c[5608,5621] [2024-10-31 22:09:33,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:33,048 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:09:33,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:33 WrapperNode [2024-10-31 22:09:33,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:33,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:33,050 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:09:33,050 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:09:33,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:33" (1/1) ... [2024-10-31 22:09:33,072 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:33" (1/1) ... [2024-10-31 22:09:33,098 INFO L138 Inliner]: procedures = 54, calls = 98, calls flagged for inlining = 22, calls inlined = 17, statements flattened = 175 [2024-10-31 22:09:33,098 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:33,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:09:33,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:09:33,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:09:33,112 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:33" (1/1) ... [2024-10-31 22:09:33,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:33" (1/1) ... [2024-10-31 22:09:33,114 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:33" (1/1) ... [2024-10-31 22:09:33,129 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:09:33,130 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:33" (1/1) ... [2024-10-31 22:09:33,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:33" (1/1) ... [2024-10-31 22:09:33,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:33" (1/1) ... [2024-10-31 22:09:33,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:33" (1/1) ... [2024-10-31 22:09:33,141 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:33" (1/1) ... [2024-10-31 22:09:33,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:33" (1/1) ... [2024-10-31 22:09:33,145 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:09:33,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:09:33,147 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:09:33,147 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:09:33,148 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:33" (1/1) ... [2024-10-31 22:09:33,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:09:33,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:33,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:33,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:09:33,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:09:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-31 22:09:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-31 22:09:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-10-31 22:09:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-10-31 22:09:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-31 22:09:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-31 22:09:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-31 22:09:33,237 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-31 22:09:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-31 22:09:33,237 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-31 22:09:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-31 22:09:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-31 22:09:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:09:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-31 22:09:33,239 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-31 22:09:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:09:33,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:09:33,346 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:09:33,349 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:09:33,709 INFO L? ?]: Removed 39 outVars from TransFormulas that were not future-live. [2024-10-31 22:09:33,710 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:09:33,727 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:09:33,727 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:09:33,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:33 BoogieIcfgContainer [2024-10-31 22:09:33,728 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:09:33,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:09:33,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:09:33,737 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:09:33,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:09:32" (1/3) ... [2024-10-31 22:09:33,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9496fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:09:33, skipping insertion in model container [2024-10-31 22:09:33,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:33" (2/3) ... [2024-10-31 22:09:33,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9496fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:09:33, skipping insertion in model container [2024-10-31 22:09:33,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:33" (3/3) ... [2024-10-31 22:09:33,742 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2024-10-31 22:09:33,761 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:09:33,761 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:09:33,828 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:09:33,835 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@658e460b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:09:33,835 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:09:33,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 69 states have internal predecessors, (86), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:09:33,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-31 22:09:33,849 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:33,850 INFO L215 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] [2024-10-31 22:09:33,850 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:33,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:33,856 INFO L85 PathProgramCache]: Analyzing trace with hash 621432965, now seen corresponding path program 1 times [2024-10-31 22:09:33,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:33,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127964949] [2024-10-31 22:09:33,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:33,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:34,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 22:09:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:34,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:34,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:34,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127964949] [2024-10-31 22:09:34,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127964949] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:34,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:34,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:09:34,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128306426] [2024-10-31 22:09:34,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:34,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:09:34,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:34,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:09:34,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:09:34,142 INFO L87 Difference]: Start difference. First operand has 82 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 69 states have internal predecessors, (86), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:09:34,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:34,170 INFO L93 Difference]: Finished difference Result 156 states and 211 transitions. [2024-10-31 22:09:34,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:09:34,172 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-10-31 22:09:34,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:34,180 INFO L225 Difference]: With dead ends: 156 [2024-10-31 22:09:34,180 INFO L226 Difference]: Without dead ends: 73 [2024-10-31 22:09:34,183 INFO L431 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 [2024-10-31 22:09:34,186 INFO L432 NwaCegarLoop]: 102 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, 102 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 [2024-10-31 22:09:34,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:34,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-10-31 22:09:34,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-10-31 22:09:34,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 55 states have (on average 1.309090909090909) internal successors, (72), 61 states have internal predecessors, (72), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:09:34,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2024-10-31 22:09:34,230 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 93 transitions. Word has length 25 [2024-10-31 22:09:34,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:34,231 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 93 transitions. [2024-10-31 22:09:34,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:09:34,232 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2024-10-31 22:09:34,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-31 22:09:34,234 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:34,234 INFO L215 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] [2024-10-31 22:09:34,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:09:34,235 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:34,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:34,235 INFO L85 PathProgramCache]: Analyzing trace with hash 756796403, now seen corresponding path program 1 times [2024-10-31 22:09:34,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:34,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031779874] [2024-10-31 22:09:34,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:34,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:34,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:09:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:34,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:34,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:34,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031779874] [2024-10-31 22:09:34,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031779874] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:34,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:34,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:09:34,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118084277] [2024-10-31 22:09:34,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:34,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:34,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:34,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:34,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:34,377 INFO L87 Difference]: Start difference. First operand 73 states and 93 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:09:34,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:34,402 INFO L93 Difference]: Finished difference Result 108 states and 136 transitions. [2024-10-31 22:09:34,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:34,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-10-31 22:09:34,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:34,405 INFO L225 Difference]: With dead ends: 108 [2024-10-31 22:09:34,405 INFO L226 Difference]: Without dead ends: 64 [2024-10-31 22:09:34,405 INFO L431 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 [2024-10-31 22:09:34,407 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 16 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 139 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 [2024-10-31 22:09:34,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 139 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:34,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-31 22:09:34,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-10-31 22:09:34,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 55 states have internal predecessors, (65), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-31 22:09:34,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2024-10-31 22:09:34,417 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 26 [2024-10-31 22:09:34,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:34,417 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2024-10-31 22:09:34,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:09:34,418 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2024-10-31 22:09:34,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-31 22:09:34,419 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:34,419 INFO L215 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] [2024-10-31 22:09:34,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:09:34,419 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:34,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:34,420 INFO L85 PathProgramCache]: Analyzing trace with hash 837913727, now seen corresponding path program 1 times [2024-10-31 22:09:34,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:34,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002326015] [2024-10-31 22:09:34,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:34,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:34,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 22:09:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:34,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:34,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:34,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002326015] [2024-10-31 22:09:34,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002326015] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:34,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:34,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:09:34,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915657719] [2024-10-31 22:09:34,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:34,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:09:34,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:34,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:09:34,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:09:34,639 INFO L87 Difference]: Start difference. First operand 64 states and 81 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:09:34,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:34,842 INFO L93 Difference]: Finished difference Result 221 states and 287 transitions. [2024-10-31 22:09:34,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:09:34,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-10-31 22:09:34,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:34,846 INFO L225 Difference]: With dead ends: 221 [2024-10-31 22:09:34,846 INFO L226 Difference]: Without dead ends: 164 [2024-10-31 22:09:34,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:09:34,848 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 135 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:34,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 409 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:09:34,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-10-31 22:09:34,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 158. [2024-10-31 22:09:34,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 119 states have (on average 1.361344537815126) internal successors, (162), 133 states have internal predecessors, (162), 21 states have call successors, (21), 17 states have call predecessors, (21), 17 states have return successors, (22), 15 states have call predecessors, (22), 21 states have call successors, (22) [2024-10-31 22:09:34,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 205 transitions. [2024-10-31 22:09:34,905 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 205 transitions. Word has length 30 [2024-10-31 22:09:34,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:34,906 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 205 transitions. [2024-10-31 22:09:34,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:09:34,906 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 205 transitions. [2024-10-31 22:09:34,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-31 22:09:34,911 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:34,911 INFO L215 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] [2024-10-31 22:09:34,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:09:34,912 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:34,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:34,912 INFO L85 PathProgramCache]: Analyzing trace with hash -528751266, now seen corresponding path program 1 times [2024-10-31 22:09:34,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:34,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626210319] [2024-10-31 22:09:34,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:34,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:35,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 22:09:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:35,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-31 22:09:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:35,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:35,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:35,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626210319] [2024-10-31 22:09:35,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626210319] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:35,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:35,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:09:35,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350193969] [2024-10-31 22:09:35,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:35,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:09:35,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:35,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:09:35,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:35,101 INFO L87 Difference]: Start difference. First operand 158 states and 205 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2024-10-31 22:09:35,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:35,222 INFO L93 Difference]: Finished difference Result 443 states and 596 transitions. [2024-10-31 22:09:35,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:09:35,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 35 [2024-10-31 22:09:35,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:35,227 INFO L225 Difference]: With dead ends: 443 [2024-10-31 22:09:35,227 INFO L226 Difference]: Without dead ends: 292 [2024-10-31 22:09:35,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:09:35,230 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 45 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:35,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 290 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:35,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-10-31 22:09:35,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2024-10-31 22:09:35,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 218 states have (on average 1.3394495412844036) internal successors, (292), 242 states have internal predecessors, (292), 42 states have call successors, (42), 34 states have call predecessors, (42), 31 states have return successors, (48), 27 states have call predecessors, (48), 42 states have call successors, (48) [2024-10-31 22:09:35,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 382 transitions. [2024-10-31 22:09:35,320 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 382 transitions. Word has length 35 [2024-10-31 22:09:35,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:35,321 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 382 transitions. [2024-10-31 22:09:35,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2024-10-31 22:09:35,321 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 382 transitions. [2024-10-31 22:09:35,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-31 22:09:35,327 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:35,327 INFO L215 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] [2024-10-31 22:09:35,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:09:35,328 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:35,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:35,329 INFO L85 PathProgramCache]: Analyzing trace with hash 506067257, now seen corresponding path program 1 times [2024-10-31 22:09:35,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:35,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699536880] [2024-10-31 22:09:35,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:35,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:35,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:09:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:35,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-31 22:09:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:35,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:35,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699536880] [2024-10-31 22:09:35,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699536880] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:35,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:35,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:09:35,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068022171] [2024-10-31 22:09:35,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:35,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:35,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:35,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:35,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:35,471 INFO L87 Difference]: Start difference. First operand 292 states and 382 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-10-31 22:09:35,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:35,521 INFO L93 Difference]: Finished difference Result 516 states and 684 transitions. [2024-10-31 22:09:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:35,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 37 [2024-10-31 22:09:35,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:35,524 INFO L225 Difference]: With dead ends: 516 [2024-10-31 22:09:35,524 INFO L226 Difference]: Without dead ends: 231 [2024-10-31 22:09:35,527 INFO L431 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 [2024-10-31 22:09:35,528 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:35,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 56 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:35,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-10-31 22:09:35,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 227. [2024-10-31 22:09:35,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 173 states have (on average 1.2716763005780347) internal successors, (220), 183 states have internal predecessors, (220), 28 states have call successors, (28), 28 states have call predecessors, (28), 25 states have return successors, (30), 25 states have call predecessors, (30), 28 states have call successors, (30) [2024-10-31 22:09:35,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 278 transitions. [2024-10-31 22:09:35,554 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 278 transitions. Word has length 37 [2024-10-31 22:09:35,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:35,557 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 278 transitions. [2024-10-31 22:09:35,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-10-31 22:09:35,558 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 278 transitions. [2024-10-31 22:09:35,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-31 22:09:35,559 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:35,559 INFO L215 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] [2024-10-31 22:09:35,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:09:35,559 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:35,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:35,563 INFO L85 PathProgramCache]: Analyzing trace with hash -302943176, now seen corresponding path program 1 times [2024-10-31 22:09:35,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:35,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185518769] [2024-10-31 22:09:35,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:35,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:35,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:09:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:35,649 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:09:35,650 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:09:35,651 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-31 22:09:35,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:09:35,656 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-31 22:09:35,718 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:09:35,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:09:35 BoogieIcfgContainer [2024-10-31 22:09:35,725 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:09:35,725 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:09:35,726 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:09:35,728 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:09:35,729 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:33" (3/4) ... [2024-10-31 22:09:35,730 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-31 22:09:35,812 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:09:35,812 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:09:35,813 INFO L158 Benchmark]: Toolchain (without parser) took 3353.96ms. Allocated memory is still 161.5MB. Free memory was 133.5MB in the beginning and 97.4MB in the end (delta: 36.1MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2024-10-31 22:09:35,813 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 121.6MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:09:35,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 588.40ms. Allocated memory is still 161.5MB. Free memory was 133.0MB in the beginning and 111.7MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-31 22:09:35,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.82ms. Allocated memory is still 161.5MB. Free memory was 111.7MB in the beginning and 109.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:09:35,814 INFO L158 Benchmark]: Boogie Preprocessor took 46.38ms. Allocated memory is still 161.5MB. Free memory was 109.7MB in the beginning and 107.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:09:35,815 INFO L158 Benchmark]: RCFGBuilder took 581.87ms. Allocated memory is still 161.5MB. Free memory was 107.6MB in the beginning and 90.3MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-31 22:09:35,815 INFO L158 Benchmark]: TraceAbstraction took 1992.09ms. Allocated memory is still 161.5MB. Free memory was 89.8MB in the beginning and 100.6MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:09:35,815 INFO L158 Benchmark]: Witness Printer took 86.96ms. Allocated memory is still 161.5MB. Free memory was 100.6MB in the beginning and 97.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:09:35,817 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 121.6MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 588.40ms. Allocated memory is still 161.5MB. Free memory was 133.0MB in the beginning and 111.7MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.82ms. Allocated memory is still 161.5MB. Free memory was 111.7MB in the beginning and 109.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.38ms. Allocated memory is still 161.5MB. Free memory was 109.7MB in the beginning and 107.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 581.87ms. Allocated memory is still 161.5MB. Free memory was 107.6MB in the beginning and 90.3MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1992.09ms. Allocated memory is still 161.5MB. Free memory was 89.8MB in the beginning and 100.6MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 86.96ms. Allocated memory is still 161.5MB. Free memory was 100.6MB in the beginning and 97.4MB 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 315]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [315] - GenericResultAtLocation [Line: 351]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [351] - GenericResultAtLocation [Line: 360]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [360] - GenericResultAtLocation [Line: 398]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [398] - GenericResultAtLocation [Line: 764]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [764] - GenericResultAtLocation [Line: 853]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [853] * 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: 356]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L568] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L765] int waterLevel = 1; [L766] int methaneLevelCritical = 0; [L854] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L927] int retValue_acc ; [L928] int tmp ; [L932] FCALL select_helpers() [L933] FCALL select_features() [L934] CALL, EXPR valid_product() [L390] int retValue_acc ; [L393] retValue_acc = 1 [L394] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L934] RET, EXPR valid_product() [L934] tmp = valid_product() [L936] COND TRUE \read(tmp) [L938] FCALL setup() [L939] CALL runTest() [L921] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L77] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L783] COND TRUE waterLevel < 2 [L784] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L110] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L138] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L145] COND TRUE \read(systemActive) [L147] CALL processEnvironment() [L167] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L170] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L185] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L147] RET processEnvironment() [L153] CALL __utac_acc__Specification3_spec__1() [L319] int tmp ; [L320] int tmp___0 ; [L321] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L325] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L804] int retValue_acc ; [L807] retValue_acc = methaneLevelCritical [L808] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L325] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L325] tmp = isMethaneLevelCritical() [L327] COND FALSE !(\read(tmp)) [L331] CALL, EXPR getWaterLevel() [L836] int retValue_acc ; [L839] retValue_acc = waterLevel [L840] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L331] RET, EXPR getWaterLevel() [L331] tmp___0 = getWaterLevel() [L333] COND TRUE tmp___0 == 2 [L335] CALL, EXPR isPumpRunning() [L237] int retValue_acc ; [L240] retValue_acc = pumpRunning [L241] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L335] RET, EXPR isPumpRunning() [L335] tmp___1 = isPumpRunning() [L337] COND FALSE !(\read(tmp___1)) [L341] CALL __automaton_fail() [L356] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 244 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 996 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 586 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 410 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=292occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 282 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:09:35,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517596a6-ad5d-429f-92e4-48fc8cdde84e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE