./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme --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 1b7b562c6a835e9c81bbd978940c7270ae455ff1120bac33da414b2ebf27928d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:58:37,738 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:58:37,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:58:37,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:58:37,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:58:37,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:58:37,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:58:37,917 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:58:37,919 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:58:37,924 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:58:37,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:58:37,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:58:37,926 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:58:37,928 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:58:37,928 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:58:37,929 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:58:37,929 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:58:37,929 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:58:37,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:58:37,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:58:37,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:58:37,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:58:37,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:58:37,932 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:58:37,933 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:58:37,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:58:37,934 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:58:37,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:58:37,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:58:37,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:58:37,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:58:37,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:37,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:58:37,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:58:37,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:58:37,938 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:58:37,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:58:37,939 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:58:37,939 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:58:37,939 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:58:37,939 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:58:37,940 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:58:37,940 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_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b7b562c6a835e9c81bbd978940c7270ae455ff1120bac33da414b2ebf27928d [2023-11-26 11:58:38,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:58:38,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:58:38,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:58:38,325 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:58:38,325 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:58:38,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2023-11-26 11:58:41,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:58:41,756 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:58:41,757 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2023-11-26 11:58:41,772 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/data/48c561788/1025069618b34f258d48ef8ebd13ed2f/FLAG3cb684c13 [2023-11-26 11:58:41,786 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/data/48c561788/1025069618b34f258d48ef8ebd13ed2f [2023-11-26 11:58:41,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:58:41,791 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:58:41,792 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:41,793 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:58:41,798 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:58:41,799 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:41" (1/1) ... [2023-11-26 11:58:41,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a32628b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:41, skipping insertion in model container [2023-11-26 11:58:41,801 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:41" (1/1) ... [2023-11-26 11:58:41,920 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:58:42,156 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_eaeab3a9-f554-48d5-baae-a6c8f878c169/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c[12494,12507] [2023-11-26 11:58:42,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:42,230 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:58:42,239 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-11-26 11:58:42,241 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [135] [2023-11-26 11:58:42,241 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [501] [2023-11-26 11:58:42,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [510] [2023-11-26 11:58:42,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [537] [2023-11-26 11:58:42,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [639] [2023-11-26 11:58:42,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [791] [2023-11-26 11:58:42,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [856] [2023-11-26 11:58:42,288 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_eaeab3a9-f554-48d5-baae-a6c8f878c169/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c[12494,12507] [2023-11-26 11:58:42,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:42,323 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:58:42,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:42 WrapperNode [2023-11-26 11:58:42,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:42,325 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:42,325 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:58:42,325 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:58:42,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:42" (1/1) ... [2023-11-26 11:58:42,348 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:42" (1/1) ... [2023-11-26 11:58:42,379 INFO L138 Inliner]: procedures = 51, calls = 94, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 160 [2023-11-26 11:58:42,379 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:42,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:58:42,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:58:42,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:58:42,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:42" (1/1) ... [2023-11-26 11:58:42,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:42" (1/1) ... [2023-11-26 11:58:42,393 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:42" (1/1) ... [2023-11-26 11:58:42,410 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]. [2023-11-26 11:58:42,411 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:42" (1/1) ... [2023-11-26 11:58:42,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:42" (1/1) ... [2023-11-26 11:58:42,438 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:42" (1/1) ... [2023-11-26 11:58:42,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:42" (1/1) ... [2023-11-26 11:58:42,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:42" (1/1) ... [2023-11-26 11:58:42,445 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:42" (1/1) ... [2023-11-26 11:58:42,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:58:42,461 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:58:42,461 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:58:42,461 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:58:42,462 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:42" (1/1) ... [2023-11-26 11:58:42,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:42,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:42,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:42,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:58:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:58:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-26 11:58:42,538 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-26 11:58:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-26 11:58:42,539 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-26 11:58:42,539 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-26 11:58:42,539 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-26 11:58:42,539 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-26 11:58:42,539 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-26 11:58:42,539 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-26 11:58:42,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-26 11:58:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:58:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-26 11:58:42,540 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-26 11:58:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:58:42,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:58:42,629 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:58:42,631 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:58:42,896 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:58:42,989 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:58:42,989 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 11:58:42,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:42 BoogieIcfgContainer [2023-11-26 11:58:42,990 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:58:42,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:58:42,993 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:58:42,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:58:42,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:58:41" (1/3) ... [2023-11-26 11:58:42,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a597ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:42, skipping insertion in model container [2023-11-26 11:58:42,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:42" (2/3) ... [2023-11-26 11:58:42,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a597ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:42, skipping insertion in model container [2023-11-26 11:58:42,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:42" (3/3) ... [2023-11-26 11:58:43,001 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product13.cil.c [2023-11-26 11:58:43,020 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:58:43,020 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:58:43,072 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:58:43,080 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@42460d71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:58:43,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:58:43,085 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 43 states have internal predecessors, (58), 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) [2023-11-26 11:58:43,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-26 11:58:43,096 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:43,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:43,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:43,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:43,107 INFO L85 PathProgramCache]: Analyzing trace with hash -262210746, now seen corresponding path program 1 times [2023-11-26 11:58:43,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:43,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363118635] [2023-11-26 11:58:43,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:43,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:43,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:43,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:43,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363118635] [2023-11-26 11:58:43,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363118635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:43,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:43,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:43,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031306205] [2023-11-26 11:58:43,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:43,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:58:43,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:43,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:58:43,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:58:43,393 INFO L87 Difference]: Start difference. First operand has 54 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 43 states have internal predecessors, (58), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:43,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:43,453 INFO L93 Difference]: Finished difference Result 106 states and 153 transitions. [2023-11-26 11:58:43,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:58:43,456 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-26 11:58:43,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:43,465 INFO L225 Difference]: With dead ends: 106 [2023-11-26 11:58:43,466 INFO L226 Difference]: Without dead ends: 49 [2023-11-26 11:58:43,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:58:43,474 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:43,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:43,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-26 11:58:43,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-26 11:58:43,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 34 states have (on average 1.411764705882353) internal successors, (48), 39 states have internal predecessors, (48), 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) [2023-11-26 11:58:43,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 65 transitions. [2023-11-26 11:58:43,521 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 65 transitions. Word has length 12 [2023-11-26 11:58:43,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:43,522 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 65 transitions. [2023-11-26 11:58:43,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:43,523 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2023-11-26 11:58:43,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-26 11:58:43,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:43,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:43,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:58:43,526 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:43,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:43,527 INFO L85 PathProgramCache]: Analyzing trace with hash 154523288, now seen corresponding path program 1 times [2023-11-26 11:58:43,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:43,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787320622] [2023-11-26 11:58:43,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:43,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:43,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:43,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:43,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787320622] [2023-11-26 11:58:43,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787320622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:43,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:43,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:58:43,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084388698] [2023-11-26 11:58:43,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:43,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:43,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:43,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:43,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:43,710 INFO L87 Difference]: Start difference. First operand 49 states and 65 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:43,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:43,740 INFO L93 Difference]: Finished difference Result 71 states and 93 transitions. [2023-11-26 11:58:43,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:43,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-26 11:58:43,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:43,742 INFO L225 Difference]: With dead ends: 71 [2023-11-26 11:58:43,743 INFO L226 Difference]: Without dead ends: 41 [2023-11-26 11:58:43,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:43,745 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 11 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:43,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 78 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:43,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-26 11:58:43,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-26 11:58:43,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 34 states have internal predecessors, (42), 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) [2023-11-26 11:58:43,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2023-11-26 11:58:43,755 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 13 [2023-11-26 11:58:43,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:43,755 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions. [2023-11-26 11:58:43,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:43,756 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2023-11-26 11:58:43,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-26 11:58:43,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:43,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:43,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:58:43,758 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:43,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:43,758 INFO L85 PathProgramCache]: Analyzing trace with hash -227042576, now seen corresponding path program 1 times [2023-11-26 11:58:43,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:43,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025394005] [2023-11-26 11:58:43,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:43,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:43,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:43,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:43,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025394005] [2023-11-26 11:58:43,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025394005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:43,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:43,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:43,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776716807] [2023-11-26 11:58:43,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:43,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:43,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:43,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:43,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:43,903 INFO L87 Difference]: Start difference. First operand 41 states and 54 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:43,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:43,937 INFO L93 Difference]: Finished difference Result 80 states and 107 transitions. [2023-11-26 11:58:43,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:43,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-26 11:58:43,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:43,941 INFO L225 Difference]: With dead ends: 80 [2023-11-26 11:58:43,941 INFO L226 Difference]: Without dead ends: 41 [2023-11-26 11:58:43,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:43,947 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:43,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 44 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:43,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-26 11:58:43,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-26 11:58:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 34 states have internal predecessors, (41), 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) [2023-11-26 11:58:43,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2023-11-26 11:58:43,970 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 16 [2023-11-26 11:58:43,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:43,970 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2023-11-26 11:58:43,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:43,972 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2023-11-26 11:58:43,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 11:58:43,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:43,975 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] [2023-11-26 11:58:43,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:58:43,976 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:43,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:43,977 INFO L85 PathProgramCache]: Analyzing trace with hash 840122940, now seen corresponding path program 1 times [2023-11-26 11:58:43,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:43,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037573659] [2023-11-26 11:58:43,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:43,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:44,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:58:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:44,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:44,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:44,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037573659] [2023-11-26 11:58:44,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037573659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:44,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:44,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:58:44,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121238871] [2023-11-26 11:58:44,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:44,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:58:44,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:44,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:58:44,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:58:44,177 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2023-11-26 11:58:44,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:44,437 INFO L93 Difference]: Finished difference Result 153 states and 208 transitions. [2023-11-26 11:58:44,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:58:44,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 21 [2023-11-26 11:58:44,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:44,440 INFO L225 Difference]: With dead ends: 153 [2023-11-26 11:58:44,441 INFO L226 Difference]: Without dead ends: 114 [2023-11-26 11:58:44,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:58:44,443 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 98 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:44,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 183 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:58:44,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-26 11:58:44,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 75. [2023-11-26 11:58:44,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 62 states have internal predecessors, (74), 11 states have call successors, (11), 9 states have call predecessors, (11), 10 states have return successors, (13), 10 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-26 11:58:44,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 98 transitions. [2023-11-26 11:58:44,465 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 98 transitions. Word has length 21 [2023-11-26 11:58:44,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:44,466 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 98 transitions. [2023-11-26 11:58:44,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2023-11-26 11:58:44,466 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 98 transitions. [2023-11-26 11:58:44,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-26 11:58:44,468 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:44,468 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] [2023-11-26 11:58:44,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:58:44,469 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:44,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:44,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1846061065, now seen corresponding path program 1 times [2023-11-26 11:58:44,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:44,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921151101] [2023-11-26 11:58:44,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:44,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:44,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:58:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:44,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:44,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:44,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921151101] [2023-11-26 11:58:44,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921151101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:44,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:44,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:58:44,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885359938] [2023-11-26 11:58:44,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:44,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:44,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:44,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:44,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:44,511 INFO L87 Difference]: Start difference. First operand 75 states and 98 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-11-26 11:58:44,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:44,573 INFO L93 Difference]: Finished difference Result 203 states and 276 transitions. [2023-11-26 11:58:44,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:44,574 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), 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 23 [2023-11-26 11:58:44,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:44,576 INFO L225 Difference]: With dead ends: 203 [2023-11-26 11:58:44,576 INFO L226 Difference]: Without dead ends: 130 [2023-11-26 11:58:44,577 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 [2023-11-26 11:58:44,578 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 41 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:44,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 110 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:44,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-26 11:58:44,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2023-11-26 11:58:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 93 states have (on average 1.3655913978494623) internal successors, (127), 104 states have internal predecessors, (127), 16 states have call successors, (16), 16 states have call predecessors, (16), 18 states have return successors, (26), 18 states have call predecessors, (26), 16 states have call successors, (26) [2023-11-26 11:58:44,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 169 transitions. [2023-11-26 11:58:44,605 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 169 transitions. Word has length 23 [2023-11-26 11:58:44,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:44,605 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 169 transitions. [2023-11-26 11:58:44,605 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), 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) [2023-11-26 11:58:44,606 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 169 transitions. [2023-11-26 11:58:44,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-26 11:58:44,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:44,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:44,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:58:44,612 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:44,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:44,613 INFO L85 PathProgramCache]: Analyzing trace with hash -2095315658, now seen corresponding path program 1 times [2023-11-26 11:58:44,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:44,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787333431] [2023-11-26 11:58:44,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:44,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:44,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:58:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:44,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 11:58:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:44,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:44,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:44,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787333431] [2023-11-26 11:58:44,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787333431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:44,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:44,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:58:44,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460516802] [2023-11-26 11:58:44,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:44,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:58:44,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:44,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:58:44,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:58:44,896 INFO L87 Difference]: Start difference. First operand 128 states and 169 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:58:45,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:45,220 INFO L93 Difference]: Finished difference Result 398 states and 546 transitions. [2023-11-26 11:58:45,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-26 11:58:45,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2023-11-26 11:58:45,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:45,231 INFO L225 Difference]: With dead ends: 398 [2023-11-26 11:58:45,231 INFO L226 Difference]: Without dead ends: 272 [2023-11-26 11:58:45,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:58:45,244 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 121 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:45,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 199 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:58:45,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-11-26 11:58:45,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 207. [2023-11-26 11:58:45,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 150 states have (on average 1.3466666666666667) internal successors, (202), 168 states have internal predecessors, (202), 27 states have call successors, (27), 25 states have call predecessors, (27), 29 states have return successors, (45), 27 states have call predecessors, (45), 27 states have call successors, (45) [2023-11-26 11:58:45,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 274 transitions. [2023-11-26 11:58:45,327 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 274 transitions. Word has length 25 [2023-11-26 11:58:45,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:45,328 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 274 transitions. [2023-11-26 11:58:45,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:58:45,328 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 274 transitions. [2023-11-26 11:58:45,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-26 11:58:45,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:45,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:45,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:58:45,337 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:45,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:45,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1759404552, now seen corresponding path program 1 times [2023-11-26 11:58:45,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:45,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404148657] [2023-11-26 11:58:45,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:45,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:45,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:58:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:45,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:45,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:45,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404148657] [2023-11-26 11:58:45,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404148657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:45,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:45,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:58:45,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823918262] [2023-11-26 11:58:45,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:45,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:58:45,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:45,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:58:45,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:58:45,506 INFO L87 Difference]: Start difference. First operand 207 states and 274 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:58:45,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:45,723 INFO L93 Difference]: Finished difference Result 611 states and 826 transitions. [2023-11-26 11:58:45,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:58:45,724 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-26 11:58:45,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:45,729 INFO L225 Difference]: With dead ends: 611 [2023-11-26 11:58:45,730 INFO L226 Difference]: Without dead ends: 406 [2023-11-26 11:58:45,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:58:45,733 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 35 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:45,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 197 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:58:45,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2023-11-26 11:58:45,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 404. [2023-11-26 11:58:45,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 292 states have (on average 1.3150684931506849) internal successors, (384), 323 states have internal predecessors, (384), 54 states have call successors, (54), 50 states have call predecessors, (54), 57 states have return successors, (88), 54 states have call predecessors, (88), 54 states have call successors, (88) [2023-11-26 11:58:45,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 526 transitions. [2023-11-26 11:58:45,828 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 526 transitions. Word has length 25 [2023-11-26 11:58:45,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:45,829 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 526 transitions. [2023-11-26 11:58:45,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:58:45,829 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 526 transitions. [2023-11-26 11:58:45,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-26 11:58:45,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:45,834 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] [2023-11-26 11:58:45,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:58:45,835 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:45,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:45,836 INFO L85 PathProgramCache]: Analyzing trace with hash 899989906, now seen corresponding path program 1 times [2023-11-26 11:58:45,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:45,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682125696] [2023-11-26 11:58:45,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:45,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:45,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:45,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:58:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:46,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 11:58:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 11:58:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:46,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:46,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682125696] [2023-11-26 11:58:46,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682125696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:46,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:46,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:58:46,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840955757] [2023-11-26 11:58:46,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:46,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:58:46,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:46,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:58:46,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:58:46,038 INFO L87 Difference]: Start difference. First operand 404 states and 526 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:58:46,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:46,493 INFO L93 Difference]: Finished difference Result 943 states and 1283 transitions. [2023-11-26 11:58:46,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:58:46,494 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2023-11-26 11:58:46,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:46,501 INFO L225 Difference]: With dead ends: 943 [2023-11-26 11:58:46,501 INFO L226 Difference]: Without dead ends: 661 [2023-11-26 11:58:46,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:58:46,504 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 171 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:46,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 301 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:58:46,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2023-11-26 11:58:46,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 531. [2023-11-26 11:58:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 378 states have (on average 1.2936507936507937) internal successors, (489), 419 states have internal predecessors, (489), 76 states have call successors, (76), 68 states have call predecessors, (76), 76 states have return successors, (117), 70 states have call predecessors, (117), 76 states have call successors, (117) [2023-11-26 11:58:46,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 682 transitions. [2023-11-26 11:58:46,609 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 682 transitions. Word has length 32 [2023-11-26 11:58:46,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:46,609 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 682 transitions. [2023-11-26 11:58:46,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:58:46,610 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 682 transitions. [2023-11-26 11:58:46,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-26 11:58:46,615 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:46,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:46,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:58:46,616 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:46,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:46,617 INFO L85 PathProgramCache]: Analyzing trace with hash 700838348, now seen corresponding path program 1 times [2023-11-26 11:58:46,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:46,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511658904] [2023-11-26 11:58:46,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:46,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:46,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:58:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:46,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:58:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:46,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:46,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:46,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511658904] [2023-11-26 11:58:46,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511658904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:46,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:46,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:58:46,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905133401] [2023-11-26 11:58:46,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:46,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:46,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:46,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:46,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:46,777 INFO L87 Difference]: Start difference. First operand 531 states and 682 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2023-11-26 11:58:46,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:46,820 INFO L93 Difference]: Finished difference Result 643 states and 834 transitions. [2023-11-26 11:58:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:46,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 28 [2023-11-26 11:58:46,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:46,821 INFO L225 Difference]: With dead ends: 643 [2023-11-26 11:58:46,821 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 11:58:46,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:46,825 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 23 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:46,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 58 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:46,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 11:58:46,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 11:58:46,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:46,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 11:58:46,827 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2023-11-26 11:58:46,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:46,828 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:58:46,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2023-11-26 11:58:46,828 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:58:46,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 11:58:46,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:58:46,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:58:46,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 11:58:47,763 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 82 93) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse3 (not (= 1 ~systemActive~0))) (.cse4 (= ~waterLevel~0 0))) (and (or .cse0 .cse1 .cse2 .cse3 (< ~waterLevel~0 2) .cse4) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3 .cse4))) [2023-11-26 11:58:47,763 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2023-11-26 11:58:47,763 INFO L899 garLoopResultBuilder]: For program point L86-1(lines 82 93) no Hoare annotation was computed. [2023-11-26 11:58:47,763 INFO L899 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2023-11-26 11:58:47,764 INFO L895 garLoopResultBuilder]: At program point L696(line 696) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 (= ~waterLevel~0 1))) (or .cse0 (and .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1 (< |old(~waterLevel~0)| 2)))) [2023-11-26 11:58:47,764 INFO L899 garLoopResultBuilder]: For program point L696-1(lines 677 701) no Hoare annotation was computed. [2023-11-26 11:58:47,764 INFO L899 garLoopResultBuilder]: For program point L656-1(lines 656 662) no Hoare annotation was computed. [2023-11-26 11:58:47,764 INFO L899 garLoopResultBuilder]: For program point L685(lines 685 693) no Hoare annotation was computed. [2023-11-26 11:58:47,764 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 530) no Hoare annotation was computed. [2023-11-26 11:58:47,764 INFO L899 garLoopResultBuilder]: For program point L681(lines 681 698) no Hoare annotation was computed. [2023-11-26 11:58:47,764 INFO L899 garLoopResultBuilder]: For program point L520(lines 520 533) no Hoare annotation was computed. [2023-11-26 11:58:47,764 INFO L899 garLoopResultBuilder]: For program point L520-1(lines 512 536) no Hoare annotation was computed. [2023-11-26 11:58:47,765 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 66) no Hoare annotation was computed. [2023-11-26 11:58:47,765 INFO L899 garLoopResultBuilder]: For program point L62-2(lines 58 69) no Hoare annotation was computed. [2023-11-26 11:58:47,765 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 645 668) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 (= ~waterLevel~0 1))) (or .cse0 (and .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1 (< |old(~waterLevel~0)| 2)))) [2023-11-26 11:58:47,765 INFO L899 garLoopResultBuilder]: For program point L649-1(lines 648 667) no Hoare annotation was computed. [2023-11-26 11:58:47,765 INFO L895 garLoopResultBuilder]: At program point L691(line 691) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse0 .cse1 (< |old(~waterLevel~0)| 2)))) [2023-11-26 11:58:47,765 INFO L895 garLoopResultBuilder]: At program point L683(line 683) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse0 .cse1 (< |old(~waterLevel~0)| 2)))) [2023-11-26 11:58:47,766 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 645 668) no Hoare annotation was computed. [2023-11-26 11:58:47,766 INFO L899 garLoopResultBuilder]: For program point L683-1(line 683) no Hoare annotation was computed. [2023-11-26 11:58:47,766 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 506) no Hoare annotation was computed. [2023-11-26 11:58:47,766 INFO L899 garLoopResultBuilder]: For program point L546-1(line 546) no Hoare annotation was computed. [2023-11-26 11:58:47,766 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 540 569) no Hoare annotation was computed. [2023-11-26 11:58:47,766 INFO L899 garLoopResultBuilder]: For program point L565(lines 540 569) no Hoare annotation was computed. [2023-11-26 11:58:47,766 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2023-11-26 11:58:47,766 INFO L899 garLoopResultBuilder]: For program point L554(lines 554 558) no Hoare annotation was computed. [2023-11-26 11:58:47,766 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 540 569) the Hoare annotation is: true [2023-11-26 11:58:47,767 INFO L902 garLoopResultBuilder]: At program point L554-1(lines 554 558) the Hoare annotation is: true [2023-11-26 11:58:47,767 INFO L902 garLoopResultBuilder]: At program point L550-2(lines 550 564) the Hoare annotation is: true [2023-11-26 11:58:47,767 INFO L902 garLoopResultBuilder]: At program point L546(line 546) the Hoare annotation is: true [2023-11-26 11:58:47,767 INFO L899 garLoopResultBuilder]: For program point L832(lines 832 843) no Hoare annotation was computed. [2023-11-26 11:58:47,767 INFO L895 garLoopResultBuilder]: At program point L824(line 824) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)))) [2023-11-26 11:58:47,767 INFO L899 garLoopResultBuilder]: For program point L626(lines 626 633) no Hoare annotation was computed. [2023-11-26 11:58:47,767 INFO L899 garLoopResultBuilder]: For program point L626-2(lines 626 633) no Hoare annotation was computed. [2023-11-26 11:58:47,767 INFO L895 garLoopResultBuilder]: At program point L845(lines 802 847) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)))) [2023-11-26 11:58:47,767 INFO L899 garLoopResultBuilder]: For program point L812(lines 812 818) no Hoare annotation was computed. [2023-11-26 11:58:47,768 INFO L899 garLoopResultBuilder]: For program point L812-1(lines 812 818) no Hoare annotation was computed. [2023-11-26 11:58:47,768 INFO L899 garLoopResultBuilder]: For program point L838(lines 838 842) no Hoare annotation was computed. [2023-11-26 11:58:47,768 INFO L895 garLoopResultBuilder]: At program point L838-2(lines 832 843) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)))) [2023-11-26 11:58:47,768 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 11:58:47,768 INFO L899 garLoopResultBuilder]: For program point L822(lines 822 828) no Hoare annotation was computed. [2023-11-26 11:58:47,768 INFO L899 garLoopResultBuilder]: For program point L822-1(lines 822 828) no Hoare annotation was computed. [2023-11-26 11:58:47,768 INFO L899 garLoopResultBuilder]: For program point L851(lines 792 855) no Hoare annotation was computed. [2023-11-26 11:58:47,768 INFO L895 garLoopResultBuilder]: At program point L814(line 814) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)))) [2023-11-26 11:58:47,768 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 11:58:47,769 INFO L895 garLoopResultBuilder]: At program point L848(lines 801 849) the Hoare annotation is: false [2023-11-26 11:58:47,769 INFO L899 garLoopResultBuilder]: For program point L803(lines 802 847) no Hoare annotation was computed. [2023-11-26 11:58:47,769 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2023-11-26 11:58:47,769 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 70 81) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= ~waterLevel~0 1)) (or .cse0 .cse1 (< |old(~waterLevel~0)| 2) (= |old(~waterLevel~0)| ~waterLevel~0)))) [2023-11-26 11:58:47,769 INFO L899 garLoopResultBuilder]: For program point L74-1(lines 70 81) no Hoare annotation was computed. [2023-11-26 11:58:47,769 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 669 675) no Hoare annotation was computed. [2023-11-26 11:58:47,769 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 669 675) the Hoare annotation is: true [2023-11-26 11:58:47,769 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 735 745) no Hoare annotation was computed. [2023-11-26 11:58:47,769 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 735 745) the Hoare annotation is: true [2023-11-26 11:58:47,775 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:47,778 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:58:47,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:58:47 BoogieIcfgContainer [2023-11-26 11:58:47,793 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:58:47,793 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:58:47,793 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:58:47,794 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:58:47,794 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:42" (3/4) ... [2023-11-26 11:58:47,796 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:58:47,801 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-26 11:58:47,801 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-26 11:58:47,801 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-26 11:58:47,804 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-26 11:58:47,804 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-11-26 11:58:47,804 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-11-26 11:58:47,813 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-11-26 11:58:47,814 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-26 11:58:47,814 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 11:58:47,815 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:58:47,815 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:58:47,933 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:58:47,933 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:58:47,933 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:58:47,934 INFO L158 Benchmark]: Toolchain (without parser) took 6143.86ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 97.2MB in the beginning and 102.1MB in the end (delta: -4.8MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2023-11-26 11:58:47,935 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:58:47,935 INFO L158 Benchmark]: CACSL2BoogieTranslator took 532.14ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 98.7MB in the end (delta: -1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:58:47,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.51ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 96.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:58:47,936 INFO L158 Benchmark]: Boogie Preprocessor took 79.75ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 94.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:58:47,937 INFO L158 Benchmark]: RCFGBuilder took 529.70ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 75.2MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 11:58:47,937 INFO L158 Benchmark]: TraceAbstraction took 4799.90ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 74.6MB in the beginning and 109.4MB in the end (delta: -34.8MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2023-11-26 11:58:47,937 INFO L158 Benchmark]: Witness Printer took 140.34ms. Allocated memory is still 172.0MB. Free memory was 109.4MB in the beginning and 102.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 11:58:47,940 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 532.14ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 98.7MB in the end (delta: -1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.51ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 96.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.75ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 94.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.70ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 75.2MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4799.90ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 74.6MB in the beginning and 109.4MB in the end (delta: -34.8MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. * Witness Printer took 140.34ms. Allocated memory is still 172.0MB. Free memory was 109.4MB in the beginning and 102.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 135]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [135] - GenericResultAtLocation [Line: 501]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [501] - GenericResultAtLocation [Line: 510]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [510] - GenericResultAtLocation [Line: 537]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [537] - GenericResultAtLocation [Line: 639]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [639] - GenericResultAtLocation [Line: 791]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [791] - GenericResultAtLocation [Line: 856]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [856] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 506]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 558 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 542 mSDsluCounter, 1230 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 793 mSDsCounter, 132 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 619 IncrementalHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 132 mSolverCounterUnsat, 437 mSDtfsCounter, 619 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=531occurred in iteration=8, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 238 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 355 PreInvPairs, 375 NumberOfFragments, 325 HoareAnnotationTreeSize, 355 FomulaSimplifications, 1299 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 17 FomulaSimplificationsInter, 1446 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 456 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 735]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 802]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) RESULT: Ultimate proved your program to be correct! [2023-11-26 11:58:47,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaeab3a9-f554-48d5-baae-a6c8f878c169/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE